drm-misc-next for v6.5:

UAPI Changes: Cross-subsystem Changes: * fbdev: * Add Kconfig options and initializer macros for file I/O, convert DRM fbdev emulation Core Changes: * Unify handling of struct file_operations.show_fdinfo * Use .probe in all i2c code (interface cleanup) * TTM: * Remove unused code Driver Changes: * amdgpu: * Use shared show_fdinfo code * Fix building without procfs * bridge: * display-conenctor: Add support for external power supply * samsung-dsim: Fix enabling; Support variable clocking * tc358767: Fixes * ti-sn65dsi83: Fix enabling * msm: * Use shared show_fdinfo code * msxfb: * Add support for i.MX93 LCDIF * panel: * Add support for Ampire AM-800480L1TMQW-T00H plus DT bindings * panel-edp: Convert .remove to return void * stm: * dsi: Use devm_ helper * ltdc: Fix potential invalid pointer deref -----BEGIN PGP SIGNATURE----- iQEzBAABCAAdFiEEchf7rIzpz2NEoWjlaA3BHVMLeiMFAmR4fr0ACgkQaA3BHVML eiN8dwf/b0+w5eQORSAG/aQsc5nwLLYJwDLhSihtD3lMUa6EUCXQqTb7kqFWt3DY XQe6+tFIsF2WMxQL0mdtOS9kvSEbiHDN4k8OwKEnan2A9stEMitIiG32RCDGE5lH k7AvKNXS1cxPBKsoU+3hUzOihpMWCVhoxKK6KmrXdNIMbdmQLZxBv/53X1xaUHC+ vGEoqqCJ9Pgwx+BxJEXTq5j/g3Q9YDFzl0kkoMgQlrQ+MQCBkbrJK2s66Ro7WpY1 dzcCCj0JUHspjAHbQWx92rYSWtOUYlVjqUiEUkREKa8EJ6mi1hP68USBMEq4tyUN dhhNRotL1V1InAZ/mFI5vyG72LUjsQ== =f4pJ -----END PGP SIGNATURE----- Merge tag 'drm-misc-next-2023-06-01' of git://anongit.freedesktop.org/drm/drm-misc into drm-next drm-misc-next for v6.5: UAPI Changes: Cross-subsystem Changes: * fbdev: * Add Kconfig options and initializer macros for file I/O, convert DRM fbdev emulation Core Changes: * Unify handling of struct file_operations.show_fdinfo * Use .probe in all i2c code (interface cleanup) * TTM: * Remove unused code Driver Changes: * amdgpu: * Use shared show_fdinfo code * Fix building without procfs * bridge: * display-conenctor: Add support for external power supply * samsung-dsim: Fix enabling; Support variable clocking * tc358767: Fixes * ti-sn65dsi83: Fix enabling * msm: * Use shared show_fdinfo code * msxfb: * Add support for i.MX93 LCDIF * panel: * Add support for Ampire AM-800480L1TMQW-T00H plus DT bindings * panel-edp: Convert .remove to return void * stm: * dsi: Use devm_ helper * ltdc: Fix potential invalid pointer deref Signed-off-by: Dave Airlie <airlied@redhat.com> From: Thomas Zimmermann <tzimmermann@suse.de> Link: https://patchwork.freedesktop.org/patch/msgid/20230601112246.GA10882@linux-uq9g
2023-06-02 13:38:48 +10:00 · 2023-06-02 13:38:48 +10:00 · 2e1492835e
commit 2e1492835e
parent 85d712f033 43049f17b5
82 changed files with 1204 additions and 599 deletions
--- a/Documentation/devicetree/bindings/display/bridge/samsung,mipi-dsim.yaml
+++ b/Documentation/devicetree/bindings/display/bridge/samsung,mipi-dsim.yaml
@ -70,7 +70,9 @@ properties:
  samsung,burst-clock-frequency:
    $ref: /schemas/types.yaml#/definitions/uint32
    description:
-      DSIM high speed burst mode frequency.
+      DSIM high speed burst mode frequency.  If absent,
+      the pixel clock from the attached device or bridge
+      will be used instead.

  samsung,esc-clock-frequency:
    $ref: /schemas/types.yaml#/definitions/uint32
@ -80,7 +82,8 @@ properties:
  samsung,pll-clock-frequency:
    $ref: /schemas/types.yaml#/definitions/uint32
    description:
-      DSIM oscillator clock frequency.
+      DSIM oscillator clock frequency. If absent, the clock frequency
+      of sclk_mipi will be used instead.

  phys:
    maxItems: 1
@ -100,7 +103,8 @@ properties:
          specified.

      port@1:
-        $ref: /schemas/graph.yaml#/properties/port
+        $ref: /schemas/graph.yaml#/$defs/port-base
+        unevaluatedProperties: false
        description:
          DSI output port node to the panel or the next bridge
          in the chain.
@ -134,9 +138,7 @@ required:
  - compatible
  - interrupts
  - reg
-  - samsung,burst-clock-frequency
  - samsung,esc-clock-frequency
-  - samsung,pll-clock-frequency

 allOf:
  - $ref: ../dsi-controller.yaml#
--- a/Documentation/devicetree/bindings/display/connector/hdmi-connector.yaml
+++ b/Documentation/devicetree/bindings/display/connector/hdmi-connector.yaml
@ -36,6 +36,9 @@ properties:
    description: GPIO signal to enable DDC bus
    maxItems: 1

+  hdmi-pwr-supply:
+    description: Power supply for the HDMI +5V Power pin
+
  port:
    $ref: /schemas/graph.yaml#/properties/port
    description: Connection to controller providing HDMI signals
--- a/Documentation/devicetree/bindings/display/fsl,lcdif.yaml
+++ b/Documentation/devicetree/bindings/display/fsl,lcdif.yaml
@ -21,6 +21,7 @@ properties:
          - fsl,imx28-lcdif
          - fsl,imx6sx-lcdif
          - fsl,imx8mp-lcdif
+          - fsl,imx93-lcdif
      - items:
          - enum:
              - fsl,imx6sl-lcdif
@ -88,7 +89,9 @@ allOf:
      properties:
        compatible:
          contains:
-            const: fsl,imx8mp-lcdif
+            enum:
+              - fsl,imx8mp-lcdif
+              - fsl,imx93-lcdif
    then:
      properties:
        clocks:
@ -107,6 +110,7 @@ allOf:
              enum:
                - fsl,imx6sx-lcdif
                - fsl,imx8mp-lcdif
+                - fsl,imx93-lcdif
    then:
      properties:
        clocks:
@ -123,6 +127,7 @@ allOf:
              - fsl,imx8mm-lcdif
              - fsl,imx8mn-lcdif
              - fsl,imx8mp-lcdif
+              - fsl,imx93-lcdif
    then:
      required:
        - power-domains
--- a/Documentation/devicetree/bindings/display/panel/panel-simple.yaml
+++ b/Documentation/devicetree/bindings/display/panel/panel-simple.yaml
@ -33,6 +33,8 @@ properties:
      - ampire,am-1280800n3tzqw-t00h
        # Ampire AM-480272H3TMQW-T01H 4.3" WQVGA TFT LCD panel
      - ampire,am-480272h3tmqw-t01h
+        # Ampire AM-800480L1TMQW-T00H 5" WVGA TFT LCD panel
+      - ampire,am-800480l1tmqw-t00h
        # Ampire AM-800480R3TMQW-A1H 7.0" WVGA TFT LCD panel
      - ampire,am800480r3tmqwa1h
        # Ampire AM-800600P5TMQW-TB8H 8.0" SVGA TFT LCD panel
--- a/Documentation/gpu/drm-usage-stats.rst
+++ b/Documentation/gpu/drm-usage-stats.rst
@ -24,7 +24,7 @@ File format specification
 - All keys shall be prefixed with `drm-`.
 - Whitespace between the delimiter and first non-whitespace character shall be
  ignored when parsing.
- Neither keys or values are allowed to contain whitespace characters.
+- Keys are not allowed to contain whitespace characters.
 - Numerical key value pairs can end with optional unit string.
 - Data type of the value is fixed as defined in the specification.

@ -39,12 +39,13 @@ Data types
 ----------

 - <uint> - Unsigned integer without defining the maximum value.
- <str> - String excluding any above defined reserved characters or whitespace.
+- <keystr> - String excluding any above defined reserved characters or whitespace.
+- <valstr> - String.

 Mandatory fully standardised keys
 ---------------------------------

- drm-driver: <str>
+- drm-driver: <valstr>

 String shall contain the name this driver registered as via the respective
 `struct drm_driver` data structure.
@ -52,6 +53,9 @@ String shall contain the name this driver registered as via the respective
 Optional fully standardised keys
 --------------------------------

+Identification
+^^^^^^^^^^^^^^
+
 - drm-pdev: <aaaa:bb.cc.d>

 For PCI devices this should contain the PCI slot address of the device in
@ -69,10 +73,13 @@ scope of each device, in which case `drm-pdev` shall be present as well.
 Userspace should make sure to not double account any usage statistics by using
 the above described criteria in order to associate data to individual clients.

- drm-engine-<str>: <uint> ns
+Utilization
+^^^^^^^^^^^
+
+- drm-engine-<keystr>: <uint> ns

 GPUs usually contain multiple execution engines. Each shall be given a stable
-and unique name (str), with possible values documented in the driver specific
+and unique name (keystr), with possible values documented in the driver specific
 documentation.

 Value shall be in specified time units which the respective GPU engine spent
@ -84,31 +91,19 @@ larger value within a reasonable period. Upon observing a value lower than what
 was previously read, userspace is expected to stay with that larger previous
 value until a monotonic update is seen.

- drm-engine-capacity-<str>: <uint>
+- drm-engine-capacity-<keystr>: <uint>

 Engine identifier string must be the same as the one specified in the
-drm-engine-<str> tag and shall contain a greater than zero number in case the
+drm-engine-<keystr> tag and shall contain a greater than zero number in case the
 exported engine corresponds to a group of identical hardware engines.

 In the absence of this tag parser shall assume capacity of one. Zero capacity
 is not allowed.

- drm-memory-<str>: <uint> [KiB|MiB]
-
-Each possible memory type which can be used to store buffer objects by the
-GPU in question shall be given a stable and unique name to be returned as the
-string here.
-
-Value shall reflect the amount of storage currently consumed by the buffer
-object belong to this client, in the respective memory region.
-
-Default unit shall be bytes with optional unit specifiers of 'KiB' or 'MiB'
-indicating kibi- or mebi-bytes.
-
- drm-cycles-<str> <uint>
+- drm-cycles-<keystr>: <uint>

 Engine identifier string must be the same as the one specified in the
-drm-engine-<str> tag and shall contain the number of busy cycles for the given
+drm-engine-<keystr> tag and shall contain the number of busy cycles for the given
 engine.

 Values are not required to be constantly monotonic if it makes the driver
@ -117,16 +112,60 @@ larger value within a reasonable period. Upon observing a value lower than what
 was previously read, userspace is expected to stay with that larger previous
 value until a monotonic update is seen.

- drm-maxfreq-<str> <uint> [Hz|MHz|KHz]
+- drm-maxfreq-<keystr>: <uint> [Hz|MHz|KHz]

 Engine identifier string must be the same as the one specified in the
-drm-engine-<str> tag and shall contain the maximum frequency for the given
-engine.  Taken together with drm-cycles-<str>, this can be used to calculate
-percentage utilization of the engine, whereas drm-engine-<str> only reflects
+drm-engine-<keystr> tag and shall contain the maximum frequency for the given
+engine.  Taken together with drm-cycles-<keystr>, this can be used to calculate
+percentage utilization of the engine, whereas drm-engine-<keystr> only reflects
 time active without considering what frequency the engine is operating as a
 percentage of it's maximum frequency.

+Memory
+^^^^^^
+
+- drm-memory-<region>: <uint> [KiB|MiB]
+
+Each possible memory type which can be used to store buffer objects by the
+GPU in question shall be given a stable and unique name to be returned as the
+string here.  The name "memory" is reserved to refer to normal system memory.
+
+Value shall reflect the amount of storage currently consumed by the buffer
+objects belong to this client, in the respective memory region.
+
+Default unit shall be bytes with optional unit specifiers of 'KiB' or 'MiB'
+indicating kibi- or mebi-bytes.
+
+- drm-shared-<region>: <uint> [KiB|MiB]
+
+The total size of buffers that are shared with another file (ie. have more
+than a single handle).
+
+- drm-total-<region>: <uint> [KiB|MiB]
+
+The total size of buffers that including shared and private memory.
+
+- drm-resident-<region>: <uint> [KiB|MiB]
+
+The total size of buffers that are resident in the specified region.
+
+- drm-purgeable-<region>: <uint> [KiB|MiB]
+
+The total size of buffers that are purgeable.
+
+- drm-active-<region>: <uint> [KiB|MiB]
+
+The total size of buffers that are active on one or more engines.
+
+Implementation Details
+======================
+
+Drivers should use drm_show_fdinfo() in their `struct file_operations`, and
+implement &drm_driver.show_fdinfo if they wish to provide any stats which
+are not provided by drm_show_fdinfo().  But even driver specific stats should
+be documented above and where possible, aligned with other drivers.
+
 Driver specific implementations
-===============================
+-------------------------------

 :ref:`i915-usage-stats`
--- a/drivers/gpu/drm/Kconfig
+++ b/drivers/gpu/drm/Kconfig
@ -95,6 +95,7 @@ config DRM_KUNIT_TEST
 config DRM_KMS_HELPER
 	tristate
 	depends on DRM
+	select FB_SYS_HELPERS_DEFERRED if DRM_FBDEV_EMULATION
 	help
 	  CRTC helpers for KMS drivers.

@ -132,14 +133,6 @@ config DRM_FBDEV_EMULATION
 	bool "Enable legacy fbdev support for your modesetting driver"
 	depends on DRM_KMS_HELPER
 	depends on FB=y || FB=DRM_KMS_HELPER
-	select FB_CFB_FILLRECT
-	select FB_CFB_COPYAREA
-	select FB_CFB_IMAGEBLIT
-	select FB_DEFERRED_IO
-	select FB_SYS_FOPS
-	select FB_SYS_FILLRECT
-	select FB_SYS_COPYAREA
-	select FB_SYS_IMAGEBLIT
 	select FRAMEBUFFER_CONSOLE if !EXPERT
 	select FRAMEBUFFER_CONSOLE_DETECT_PRIMARY if FRAMEBUFFER_CONSOLE
 	default y
@ -223,6 +216,7 @@ config DRM_TTM_HELPER
 config DRM_GEM_DMA_HELPER
 	tristate
 	depends on DRM
+	select FB_SYS_HELPERS if DRM_FBDEV_EMULATION
 	help
 	  Choose this if you need the GEM DMA helper functions

--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
@ -2747,7 +2747,7 @@ static const struct file_operations amdgpu_driver_kms_fops = {
 	.compat_ioctl = amdgpu_kms_compat_ioctl,
 #endif
 #ifdef CONFIG_PROC_FS
-	.show_fdinfo = amdgpu_show_fdinfo
+	.show_fdinfo = drm_show_fdinfo,
 #endif
 };

@ -2802,6 +2802,9 @@ static const struct drm_driver amdgpu_kms_driver = {
 	.dumb_map_offset = amdgpu_mode_dumb_mmap,
 	.fops = &amdgpu_driver_kms_fops,
 	.release = &amdgpu_driver_release_kms,
+#ifdef CONFIG_PROC_FS
+	.show_fdinfo = amdgpu_show_fdinfo,
+#endif

 	.prime_handle_to_fd = drm_gem_prime_handle_to_fd,
 	.prime_fd_to_handle = drm_gem_prime_fd_to_handle,
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_fdinfo.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_fdinfo.c
@ -53,9 +53,8 @@ static const char *amdgpu_ip_name[AMDGPU_HW_IP_NUM] = {
 	[AMDGPU_HW_IP_VCN_JPEG]	=	"jpeg",
 };

-void amdgpu_show_fdinfo(struct seq_file *m, struct file *f)
+void amdgpu_show_fdinfo(struct drm_printer *p, struct drm_file *file)
 {
-	struct drm_file *file = f->private_data;
 	struct amdgpu_device *adev = drm_to_adev(file->minor->dev);
 	struct amdgpu_fpriv *fpriv = file->driver_priv;
 	struct amdgpu_vm *vm = &fpriv->vm;
@ -87,31 +86,30 @@ void amdgpu_show_fdinfo(struct seq_file *m, struct file *f)
 	 * ******************************************************************
 	 */

-	seq_printf(m, "pasid:\t%u\n", fpriv->vm.pasid);
-	seq_printf(m, "drm-driver:\t%s\n", file->minor->dev->driver->name);
-	seq_printf(m, "drm-pdev:\t%04x:%02x:%02x.%d\n", domain, bus, dev, fn);
-	seq_printf(m, "drm-client-id:\t%Lu\n", vm->immediate.fence_context);
-	seq_printf(m, "drm-memory-vram:\t%llu KiB\n", stats.vram/1024UL);
-	seq_printf(m, "drm-memory-gtt: \t%llu KiB\n", stats.gtt/1024UL);
-	seq_printf(m, "drm-memory-cpu: \t%llu KiB\n", stats.cpu/1024UL);
-	seq_printf(m, "amd-memory-visible-vram:\t%llu KiB\n",
+	drm_printf(p, "pasid:\t%u\n", fpriv->vm.pasid);
+	drm_printf(p, "drm-driver:\t%s\n", file->minor->dev->driver->name);
+	drm_printf(p, "drm-pdev:\t%04x:%02x:%02x.%d\n", domain, bus, dev, fn);
+	drm_printf(p, "drm-client-id:\t%Lu\n", vm->immediate.fence_context);
+	drm_printf(p, "drm-memory-vram:\t%llu KiB\n", stats.vram/1024UL);
+	drm_printf(p, "drm-memory-gtt: \t%llu KiB\n", stats.gtt/1024UL);
+	drm_printf(p, "drm-memory-cpu: \t%llu KiB\n", stats.cpu/1024UL);
+	drm_printf(p, "amd-memory-visible-vram:\t%llu KiB\n",
 		   stats.visible_vram/1024UL);
-	seq_printf(m, "amd-evicted-vram:\t%llu KiB\n",
+	drm_printf(p, "amd-evicted-vram:\t%llu KiB\n",
 		   stats.evicted_vram/1024UL);
-	seq_printf(m, "amd-evicted-visible-vram:\t%llu KiB\n",
+	drm_printf(p, "amd-evicted-visible-vram:\t%llu KiB\n",
 		   stats.evicted_visible_vram/1024UL);
-	seq_printf(m, "amd-requested-vram:\t%llu KiB\n",
+	drm_printf(p, "amd-requested-vram:\t%llu KiB\n",
 		   stats.requested_vram/1024UL);
-	seq_printf(m, "amd-requested-visible-vram:\t%llu KiB\n",
+	drm_printf(p, "amd-requested-visible-vram:\t%llu KiB\n",
 		   stats.requested_visible_vram/1024UL);
-	seq_printf(m, "amd-requested-gtt:\t%llu KiB\n",
+	drm_printf(p, "amd-requested-gtt:\t%llu KiB\n",
 		   stats.requested_gtt/1024UL);
-
 	for (hw_ip = 0; hw_ip < AMDGPU_HW_IP_NUM; ++hw_ip) {
 		if (!usage[hw_ip])
 			continue;

-		seq_printf(m, "drm-engine-%s:\t%Ld ns\n", amdgpu_ip_name[hw_ip],
+		drm_printf(p, "drm-engine-%s:\t%Ld ns\n", amdgpu_ip_name[hw_ip],
 			   ktime_to_ns(usage[hw_ip]));
 	}
 }
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_fdinfo.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_fdinfo.h
@ -37,6 +37,6 @@
 #include "amdgpu_ids.h"

 uint32_t amdgpu_get_ip_count(struct amdgpu_device *adev, int id);
-void amdgpu_show_fdinfo(struct seq_file *m, struct file *f);
+void amdgpu_show_fdinfo(struct drm_printer *p, struct drm_file *file);

 #endif
--- a/drivers/gpu/drm/armada/Kconfig
+++ b/drivers/gpu/drm/armada/Kconfig
@ -3,6 +3,7 @@ config DRM_ARMADA
 	tristate "DRM support for Marvell Armada SoCs"
 	depends on DRM && HAVE_CLK && ARM && MMU
 	select DRM_KMS_HELPER
+	select FB_IO_HELPERS if DRM_FBDEV_EMULATION
 	help
 	  Support the "LCD" controllers found on the Marvell Armada 510
 	  devices.  There are two controllers on the device, each controller
--- a/drivers/gpu/drm/armada/armada_fbdev.c
+++ b/drivers/gpu/drm/armada/armada_fbdev.c
@ -5,6 +5,7 @@
 */

 #include <linux/errno.h>
+#include <linux/fb.h>
 #include <linux/kernel.h>
 #include <linux/module.h>

@ -33,12 +34,8 @@ static void armada_fbdev_fb_destroy(struct fb_info *info)

 static const struct fb_ops armada_fb_ops = {
 	.owner		= THIS_MODULE,
+	FB_DEFAULT_IO_OPS,
 	DRM_FB_HELPER_DEFAULT_OPS,
-	.fb_read	= drm_fb_helper_cfb_read,
-	.fb_write	= drm_fb_helper_cfb_write,
-	.fb_fillrect	= drm_fb_helper_cfb_fillrect,
-	.fb_copyarea	= drm_fb_helper_cfb_copyarea,
-	.fb_imageblit	= drm_fb_helper_cfb_imageblit,
 	.fb_destroy	= armada_fbdev_fb_destroy,
 };

--- a/drivers/gpu/drm/bridge/Kconfig
+++ b/drivers/gpu/drm/bridge/Kconfig
@ -227,6 +227,7 @@ config DRM_SAMSUNG_DSIM
 	select DRM_KMS_HELPER
 	select DRM_MIPI_DSI
 	select DRM_PANEL_BRIDGE
+	select GENERIC_PHY_MIPI_DPHY
 	help
 	  The Samsung MIPI DSIM bridge controller driver.
 	  This MIPI DSIM bridge can be found it on Exynos SoCs and
--- a/drivers/gpu/drm/bridge/adv7511/adv7511_drv.c
+++ b/drivers/gpu/drm/bridge/adv7511/adv7511_drv.c
@ -1393,7 +1393,7 @@ static struct i2c_driver adv7511_driver = {
 		.of_match_table = adv7511_of_ids,
 	},
 	.id_table = adv7511_i2c_ids,
-	.probe_new = adv7511_probe,
+	.probe = adv7511_probe,
 	.remove = adv7511_remove,
 };

--- a/drivers/gpu/drm/bridge/analogix/analogix-anx6345.c
+++ b/drivers/gpu/drm/bridge/analogix/analogix-anx6345.c
@ -815,7 +815,7 @@ static struct i2c_driver anx6345_driver = {
 		   .name = "anx6345",
 		   .of_match_table = of_match_ptr(anx6345_match_table),
 		  },
-	.probe_new = anx6345_i2c_probe,
+	.probe = anx6345_i2c_probe,
 	.remove = anx6345_i2c_remove,
 	.id_table = anx6345_id,
 };
--- a/drivers/gpu/drm/bridge/analogix/analogix-anx78xx.c
+++ b/drivers/gpu/drm/bridge/analogix/analogix-anx78xx.c
@ -1389,7 +1389,7 @@ static struct i2c_driver anx78xx_driver = {
 		   .name = "anx7814",
 		   .of_match_table = of_match_ptr(anx78xx_match_table),
 		  },
-	.probe_new = anx78xx_i2c_probe,
+	.probe = anx78xx_i2c_probe,
 	.remove = anx78xx_i2c_remove,
 	.id_table = anx78xx_id,
 };
--- a/drivers/gpu/drm/bridge/analogix/anx7625.c
+++ b/drivers/gpu/drm/bridge/analogix/anx7625.c
@ -2800,7 +2800,7 @@ static struct i2c_driver anx7625_driver = {
 		.of_match_table = anx_match_table,
 		.pm = &anx7625_pm_ops,
 	},
-	.probe_new = anx7625_i2c_probe,
+	.probe = anx7625_i2c_probe,
 	.remove = anx7625_i2c_remove,

 	.id_table = anx7625_id,
--- a/drivers/gpu/drm/bridge/chipone-icn6211.c
+++ b/drivers/gpu/drm/bridge/chipone-icn6211.c
@ -795,7 +795,7 @@ static struct i2c_device_id chipone_i2c_id[] = {
 MODULE_DEVICE_TABLE(i2c, chipone_i2c_id);

 static struct i2c_driver chipone_i2c_driver = {
-	.probe_new = chipone_i2c_probe,
+	.probe = chipone_i2c_probe,
 	.id_table = chipone_i2c_id,
 	.driver = {
 		.name = "chipone-icn6211-i2c",
--- a/drivers/gpu/drm/bridge/chrontel-ch7033.c
+++ b/drivers/gpu/drm/bridge/chrontel-ch7033.c
@ -603,7 +603,7 @@ static const struct i2c_device_id ch7033_ids[] = {
 MODULE_DEVICE_TABLE(i2c, ch7033_ids);

 static struct i2c_driver ch7033_driver = {
-	.probe_new = ch7033_probe,
+	.probe = ch7033_probe,
 	.remove = ch7033_remove,
 	.driver = {
 		.name = "ch7033",
--- a/drivers/gpu/drm/bridge/cros-ec-anx7688.c
+++ b/drivers/gpu/drm/bridge/cros-ec-anx7688.c
@ -173,7 +173,7 @@ static const struct of_device_id cros_ec_anx7688_bridge_match_table[] = {
 MODULE_DEVICE_TABLE(of, cros_ec_anx7688_bridge_match_table);

 static struct i2c_driver cros_ec_anx7688_bridge_driver = {
-	.probe_new = cros_ec_anx7688_bridge_probe,
+	.probe = cros_ec_anx7688_bridge_probe,
 	.remove = cros_ec_anx7688_bridge_remove,
 	.driver = {
 		.name = "cros-ec-anx7688-bridge",
--- a/drivers/gpu/drm/bridge/display-connector.c
+++ b/drivers/gpu/drm/bridge/display-connector.c
@ -24,7 +24,7 @@ struct display_connector {
 	struct gpio_desc	*hpd_gpio;
 	int			hpd_irq;

-	struct regulator	*dp_pwr;
+	struct regulator	*supply;
 	struct gpio_desc	*ddc_en;
 };

@ -191,6 +191,18 @@ static irqreturn_t display_connector_hpd_irq(int irq, void *arg)
 	return IRQ_HANDLED;
 }

+static int display_connector_get_supply(struct platform_device *pdev,
+					struct display_connector *conn,
+					const char *name)
+{
+	conn->supply = devm_regulator_get_optional(&pdev->dev, name);
+
+	if (conn->supply == ERR_PTR(-ENODEV))
+		conn->supply = NULL;
+
+	return PTR_ERR_OR_ZERO(conn->supply);
+}
+
 static int display_connector_probe(struct platform_device *pdev)
 {
 	struct display_connector *conn;
@ -316,36 +328,15 @@ static int display_connector_probe(struct platform_device *pdev)
 	if (type == DRM_MODE_CONNECTOR_DisplayPort) {
 		int ret;

-		conn->dp_pwr = devm_regulator_get_optional(&pdev->dev, "dp-pwr");
-
-		if (IS_ERR(conn->dp_pwr)) {
-			ret = PTR_ERR(conn->dp_pwr);
-
-			switch (ret) {
-			case -ENODEV:
-				conn->dp_pwr = NULL;
-				break;
-
-			case -EPROBE_DEFER:
-				return -EPROBE_DEFER;
-
-			default:
-				dev_err(&pdev->dev, "failed to get DP PWR regulator: %d\n", ret);
-				return ret;
-			}
-		}
-
-		if (conn->dp_pwr) {
-			ret = regulator_enable(conn->dp_pwr);
-			if (ret) {
-				dev_err(&pdev->dev, "failed to enable DP PWR regulator: %d\n", ret);
-				return ret;
-			}
-		}
+		ret = display_connector_get_supply(pdev, conn, "dp-pwr");
+		if (ret < 0)
+			return dev_err_probe(&pdev->dev, ret, "failed to get DP PWR regulator\n");
 	}

 	/* enable DDC */
 	if (type == DRM_MODE_CONNECTOR_HDMIA) {
+		int ret;
+
 		conn->ddc_en = devm_gpiod_get_optional(&pdev->dev, "ddc-en",
 						       GPIOD_OUT_HIGH);

@ -353,6 +344,18 @@ static int display_connector_probe(struct platform_device *pdev)
 			dev_err(&pdev->dev, "Couldn't get ddc-en gpio\n");
 			return PTR_ERR(conn->ddc_en);
 		}
+
+		ret = display_connector_get_supply(pdev, conn, "hdmi-pwr");
+		if (ret < 0)
+			return dev_err_probe(&pdev->dev, ret, "failed to get HDMI +5V Power regulator\n");
+	}
+
+	if (conn->supply) {
+		ret = regulator_enable(conn->supply);
+		if (ret) {
+			dev_err(&pdev->dev, "failed to enable PWR regulator: %d\n", ret);
+			return ret;
+		}
 	}

 	conn->bridge.funcs = &display_connector_bridge_funcs;
@ -386,8 +389,8 @@ static void display_connector_remove(struct platform_device *pdev)
 	if (conn->ddc_en)
 		gpiod_set_value(conn->ddc_en, 0);

-	if (conn->dp_pwr)
-		regulator_disable(conn->dp_pwr);
+	if (conn->supply)
+		regulator_disable(conn->supply);

 	drm_bridge_remove(&conn->bridge);

--- a/drivers/gpu/drm/bridge/ite-it6505.c
+++ b/drivers/gpu/drm/bridge/ite-it6505.c
@ -3479,7 +3479,7 @@ static struct i2c_driver it6505_i2c_driver = {
 		.of_match_table = it6505_of_match,
 		.pm = &it6505_bridge_pm_ops,
 	},
-	.probe_new = it6505_i2c_probe,
+	.probe = it6505_i2c_probe,
 	.remove = it6505_i2c_remove,
 	.shutdown = it6505_shutdown,
 	.id_table = it6505_id,
--- a/drivers/gpu/drm/bridge/ite-it66121.c
+++ b/drivers/gpu/drm/bridge/ite-it66121.c
@ -1640,7 +1640,7 @@ static struct i2c_driver it66121_driver = {
 		.name	= "it66121",
 		.of_match_table = it66121_dt_match,
 	},
-	.probe_new = it66121_probe,
+	.probe = it66121_probe,
 	.remove = it66121_remove,
 	.id_table = it66121_id,
 };
--- a/drivers/gpu/drm/bridge/lontium-lt8912b.c
+++ b/drivers/gpu/drm/bridge/lontium-lt8912b.c
@ -773,7 +773,7 @@ static struct i2c_driver lt8912_i2c_driver = {
 		.name = "lt8912",
 		.of_match_table = lt8912_dt_match,
 	},
-	.probe_new = lt8912_probe,
+	.probe = lt8912_probe,
 	.remove = lt8912_remove,
 	.id_table = lt8912_id,
 };
--- a/drivers/gpu/drm/bridge/lontium-lt9211.c
+++ b/drivers/gpu/drm/bridge/lontium-lt9211.c
@ -787,7 +787,7 @@ static const struct of_device_id lt9211_match_table[] = {
 MODULE_DEVICE_TABLE(of, lt9211_match_table);

 static struct i2c_driver lt9211_driver = {
-	.probe_new = lt9211_probe,
+	.probe = lt9211_probe,
 	.remove = lt9211_remove,
 	.id_table = lt9211_id,
 	.driver = {
--- a/drivers/gpu/drm/bridge/lontium-lt9611.c
+++ b/drivers/gpu/drm/bridge/lontium-lt9611.c
@ -1192,7 +1192,7 @@ static struct i2c_driver lt9611_driver = {
 		.name = "lt9611",
 		.of_match_table = lt9611_match_table,
 	},
-	.probe_new = lt9611_probe,
+	.probe = lt9611_probe,
 	.remove = lt9611_remove,
 	.id_table = lt9611_id,
 };
--- a/drivers/gpu/drm/bridge/lontium-lt9611uxc.c
+++ b/drivers/gpu/drm/bridge/lontium-lt9611uxc.c
@ -1011,7 +1011,7 @@ static struct i2c_driver lt9611uxc_driver = {
 		.of_match_table = lt9611uxc_match_table,
 		.dev_groups = lt9611uxc_attr_groups,
 	},
-	.probe_new = lt9611uxc_probe,
+	.probe = lt9611uxc_probe,
 	.remove = lt9611uxc_remove,
 	.id_table = lt9611uxc_id,
 };
--- a/drivers/gpu/drm/bridge/megachips-stdpxxxx-ge-b850v3-fw.c
+++ b/drivers/gpu/drm/bridge/megachips-stdpxxxx-ge-b850v3-fw.c
@ -375,7 +375,7 @@ MODULE_DEVICE_TABLE(of, stdp4028_ge_b850v3_fw_match);

 static struct i2c_driver stdp4028_ge_b850v3_fw_driver = {
 	.id_table	= stdp4028_ge_b850v3_fw_i2c_table,
-	.probe_new	= stdp4028_ge_b850v3_fw_probe,
+	.probe		= stdp4028_ge_b850v3_fw_probe,
 	.remove		= stdp4028_ge_b850v3_fw_remove,
 	.driver		= {
 		.name		= "stdp4028-ge-b850v3-fw",
@ -422,7 +422,7 @@ MODULE_DEVICE_TABLE(of, stdp2690_ge_b850v3_fw_match);

 static struct i2c_driver stdp2690_ge_b850v3_fw_driver = {
 	.id_table	= stdp2690_ge_b850v3_fw_i2c_table,
-	.probe_new	= stdp2690_ge_b850v3_fw_probe,
+	.probe		= stdp2690_ge_b850v3_fw_probe,
 	.remove		= stdp2690_ge_b850v3_fw_remove,
 	.driver		= {
 		.name		= "stdp2690-ge-b850v3-fw",
--- a/drivers/gpu/drm/bridge/nxp-ptn3460.c
+++ b/drivers/gpu/drm/bridge/nxp-ptn3460.c
@ -335,7 +335,7 @@ MODULE_DEVICE_TABLE(of, ptn3460_match);

 static struct i2c_driver ptn3460_driver = {
 	.id_table	= ptn3460_i2c_table,
-	.probe_new	= ptn3460_probe,
+	.probe		= ptn3460_probe,
 	.remove		= ptn3460_remove,
 	.driver		= {
 		.name	= "nxp,ptn3460",
--- a/drivers/gpu/drm/bridge/parade-ps8622.c
+++ b/drivers/gpu/drm/bridge/parade-ps8622.c
@ -538,7 +538,7 @@ MODULE_DEVICE_TABLE(i2c, ps8622_i2c_table);

 static struct i2c_driver ps8622_driver = {
 	.id_table	= ps8622_i2c_table,
-	.probe_new	= ps8622_probe,
+	.probe		= ps8622_probe,
 	.remove		= ps8622_remove,
 	.driver		= {
 		.name	= "ps8622",
--- a/drivers/gpu/drm/bridge/parade-ps8640.c
+++ b/drivers/gpu/drm/bridge/parade-ps8640.c
@ -791,7 +791,7 @@ static const struct of_device_id ps8640_match[] = {
 MODULE_DEVICE_TABLE(of, ps8640_match);

 static struct i2c_driver ps8640_driver = {
-	.probe_new = ps8640_probe,
+	.probe = ps8640_probe,
 	.remove = ps8640_remove,
 	.driver = {
 		.name = "ps8640",
--- a/drivers/gpu/drm/bridge/samsung-dsim.c
+++ b/drivers/gpu/drm/bridge/samsung-dsim.c
@ -220,6 +220,8 @@

 #define OLD_SCLK_MIPI_CLK_NAME		"pll_clk"

+#define PS_TO_CYCLE(ps, hz) DIV64_U64_ROUND_CLOSEST(((ps) * (hz)), 1000000000000ULL)
+
 static const char *const clk_names[5] = {
 	"bus_clk",
 	"sclk_mipi",
@ -407,6 +409,9 @@ static const struct samsung_dsim_driver_data exynos3_dsi_driver_data = {
 	.num_bits_resol = 11,
 	.pll_p_offset = 13,
 	.reg_values = reg_values,
+	.m_min = 41,
+	.m_max = 125,
+	.min_freq = 500,
 };

 static const struct samsung_dsim_driver_data exynos4_dsi_driver_data = {
@ -420,6 +425,9 @@ static const struct samsung_dsim_driver_data exynos4_dsi_driver_data = {
 	.num_bits_resol = 11,
 	.pll_p_offset = 13,
 	.reg_values = reg_values,
+	.m_min = 41,
+	.m_max = 125,
+	.min_freq = 500,
 };

 static const struct samsung_dsim_driver_data exynos5_dsi_driver_data = {
@ -431,6 +439,9 @@ static const struct samsung_dsim_driver_data exynos5_dsi_driver_data = {
 	.num_bits_resol = 11,
 	.pll_p_offset = 13,
 	.reg_values = reg_values,
+	.m_min = 41,
+	.m_max = 125,
+	.min_freq = 500,
 };

 static const struct samsung_dsim_driver_data exynos5433_dsi_driver_data = {
@ -443,6 +454,9 @@ static const struct samsung_dsim_driver_data exynos5433_dsi_driver_data = {
 	.num_bits_resol = 12,
 	.pll_p_offset = 13,
 	.reg_values = exynos5433_reg_values,
+	.m_min = 41,
+	.m_max = 125,
+	.min_freq = 500,
 };

 static const struct samsung_dsim_driver_data exynos5422_dsi_driver_data = {
@ -455,6 +469,9 @@ static const struct samsung_dsim_driver_data exynos5422_dsi_driver_data = {
 	.num_bits_resol = 12,
 	.pll_p_offset = 13,
 	.reg_values = exynos5422_reg_values,
+	.m_min = 41,
+	.m_max = 125,
+	.min_freq = 500,
 };

 static const struct samsung_dsim_driver_data imx8mm_dsi_driver_data = {
@ -471,6 +488,9 @@ static const struct samsung_dsim_driver_data imx8mm_dsi_driver_data = {
 	 */
 	.pll_p_offset = 14,
 	.reg_values = imx8mm_dsim_reg_values,
+	.m_min = 64,
+	.m_max = 1023,
+	.min_freq = 1050,
 };

 static const struct samsung_dsim_driver_data *
@ -549,12 +569,12 @@ static unsigned long samsung_dsim_pll_find_pms(struct samsung_dsim *dsi,
 			tmp = (u64)fout * (_p << _s);
 			do_div(tmp, fin);
 			_m = tmp;
-			if (_m < 41 || _m > 125)
+			if (_m < driver_data->m_min || _m > driver_data->m_max)
 				continue;

 			tmp = (u64)_m * fin;
 			do_div(tmp, _p);
-			if (tmp < 500 * MHZ ||
+			if (tmp < driver_data->min_freq  * MHZ ||
 			    tmp > driver_data->max_freq * MHZ)
 				continue;

@ -640,16 +660,28 @@ static unsigned long samsung_dsim_set_pll(struct samsung_dsim *dsi,
 		reg = samsung_dsim_read(dsi, DSIM_STATUS_REG);
 	} while ((reg & DSIM_PLL_STABLE) == 0);

+	dsi->hs_clock = fout;
+
 	return fout;
 }

 static int samsung_dsim_enable_clock(struct samsung_dsim *dsi)
 {
-	unsigned long hs_clk, byte_clk, esc_clk;
+	unsigned long hs_clk, byte_clk, esc_clk, pix_clk;
 	unsigned long esc_div;
 	u32 reg;
+	struct drm_display_mode *m = &dsi->mode;
+	int bpp = mipi_dsi_pixel_format_to_bpp(dsi->format);
+
+	/* m->clock is in KHz */
+	pix_clk = m->clock * 1000;
+
+	/* Use burst_clk_rate if available, otherwise use the pix_clk */
+	if (dsi->burst_clk_rate)
+		hs_clk = samsung_dsim_set_pll(dsi, dsi->burst_clk_rate);
+	else
+		hs_clk = samsung_dsim_set_pll(dsi, DIV_ROUND_UP(pix_clk * bpp, dsi->lanes));

-	hs_clk = samsung_dsim_set_pll(dsi, dsi->burst_clk_rate);
 	if (!hs_clk) {
 		dev_err(dsi->dev, "failed to configure DSI PLL\n");
 		return -EFAULT;
@ -687,13 +719,47 @@ static void samsung_dsim_set_phy_ctrl(struct samsung_dsim *dsi)
 	const struct samsung_dsim_driver_data *driver_data = dsi->driver_data;
 	const unsigned int *reg_values = driver_data->reg_values;
 	u32 reg;
+	struct phy_configure_opts_mipi_dphy cfg;
+	int clk_prepare, lpx, clk_zero, clk_post, clk_trail;
+	int hs_exit, hs_prepare, hs_zero, hs_trail;
+	unsigned long long byte_clock = dsi->hs_clock / 8;

 	if (driver_data->has_freqband)
 		return;

+	phy_mipi_dphy_get_default_config_for_hsclk(dsi->hs_clock,
+						   dsi->lanes, &cfg);
+
+	/*
+	 * TODO:
+	 * The tech Applications Processor manuals for i.MX8M Mini, Nano,
+	 * and Plus don't state what the definition of the PHYTIMING
+	 * bits are beyond their address and bit position.
+	 * After reviewing NXP's downstream code, it appears
+	 * that the various PHYTIMING registers take the number
+	 * of cycles and use various dividers on them.  This
+	 * calculation does not result in an exact match to the
+	 * downstream code, but it is very close to the values
+	 * generated by their lookup table, and it appears
+	 * to sync at a variety of resolutions. If someone
+	 * can get a more accurate mathematical equation needed
+	 * for these registers, this should be updated.
+	 */
+
+	lpx = PS_TO_CYCLE(cfg.lpx, byte_clock);
+	hs_exit = PS_TO_CYCLE(cfg.hs_exit, byte_clock);
+	clk_prepare = PS_TO_CYCLE(cfg.clk_prepare, byte_clock);
+	clk_zero = PS_TO_CYCLE(cfg.clk_zero, byte_clock);
+	clk_post = PS_TO_CYCLE(cfg.clk_post, byte_clock);
+	clk_trail = PS_TO_CYCLE(cfg.clk_trail, byte_clock);
+	hs_prepare = PS_TO_CYCLE(cfg.hs_prepare, byte_clock);
+	hs_zero = PS_TO_CYCLE(cfg.hs_zero, byte_clock);
+	hs_trail = PS_TO_CYCLE(cfg.hs_trail, byte_clock);
+
 	/* B D-PHY: D-PHY Master & Slave Analog Block control */
 	reg = reg_values[PHYCTRL_ULPS_EXIT] | reg_values[PHYCTRL_VREG_LP] |
 		reg_values[PHYCTRL_SLEW_UP];
+
 	samsung_dsim_write(dsi, DSIM_PHYCTRL_REG, reg);

 	/*
@ -701,7 +767,9 @@ static void samsung_dsim_set_phy_ctrl(struct samsung_dsim *dsi)
 	 * T HS-EXIT: Time that the transmitter drives LP-11 following a HS
 	 *	burst
 	 */
-	reg = reg_values[PHYTIMING_LPX] | reg_values[PHYTIMING_HS_EXIT];
+
+	reg  = DSIM_PHYTIMING_LPX(lpx) | DSIM_PHYTIMING_HS_EXIT(hs_exit);
+
 	samsung_dsim_write(dsi, DSIM_PHYTIMING_REG, reg);

 	/*
@ -717,10 +785,11 @@ static void samsung_dsim_set_phy_ctrl(struct samsung_dsim *dsi)
 	 * T CLK-TRAIL: Time that the transmitter drives the HS-0 state after
 	 *	the last payload clock bit of a HS transmission burst
 	 */
-	reg = reg_values[PHYTIMING_CLK_PREPARE] |
-		reg_values[PHYTIMING_CLK_ZERO] |
-		reg_values[PHYTIMING_CLK_POST] |
-		reg_values[PHYTIMING_CLK_TRAIL];
+
+	reg = DSIM_PHYTIMING1_CLK_PREPARE(clk_prepare)	|
+	      DSIM_PHYTIMING1_CLK_ZERO(clk_zero)	|
+	      DSIM_PHYTIMING1_CLK_POST(clk_post)	|
+	      DSIM_PHYTIMING1_CLK_TRAIL(clk_trail);

 	samsung_dsim_write(dsi, DSIM_PHYTIMING1_REG, reg);

@ -733,8 +802,11 @@ static void samsung_dsim_set_phy_ctrl(struct samsung_dsim *dsi)
 	 * T HS-TRAIL: Time that the transmitter drives the flipped differential
 	 *	state after last payload data bit of a HS transmission burst
 	 */
-	reg = reg_values[PHYTIMING_HS_PREPARE] | reg_values[PHYTIMING_HS_ZERO] |
-		reg_values[PHYTIMING_HS_TRAIL];
+
+	reg = DSIM_PHYTIMING2_HS_PREPARE(hs_prepare) |
+	      DSIM_PHYTIMING2_HS_ZERO(hs_zero) |
+	      DSIM_PHYTIMING2_HS_TRAIL(hs_trail);
+
 	samsung_dsim_write(dsi, DSIM_PHYTIMING2_REG, reg);
 }

@ -866,6 +938,10 @@ static int samsung_dsim_init_link(struct samsung_dsim *dsi)
 	reg = samsung_dsim_read(dsi, DSIM_ESCMODE_REG);
 	reg &= ~DSIM_STOP_STATE_CNT_MASK;
 	reg |= DSIM_STOP_STATE_CNT(driver_data->reg_values[STOP_STATE_CNT]);
+
+	if (!samsung_dsim_hw_is_exynos(dsi->plat_data->hw_type))
+		reg |= DSIM_FORCE_STOP_STATE;
+
 	samsung_dsim_write(dsi, DSIM_ESCMODE_REG, reg);

 	reg = DSIM_BTA_TIMEOUT(0xff) | DSIM_LPDR_TIMEOUT(0xffff);
@ -881,17 +957,29 @@ static void samsung_dsim_set_display_mode(struct samsung_dsim *dsi)
 	u32 reg;

 	if (dsi->mode_flags & MIPI_DSI_MODE_VIDEO) {
+		int byte_clk_khz = dsi->hs_clock / 1000 / 8;
+		int hfp = (m->hsync_start - m->hdisplay) * byte_clk_khz / m->clock;
+		int hbp = (m->htotal - m->hsync_end) * byte_clk_khz / m->clock;
+		int hsa = (m->hsync_end - m->hsync_start) * byte_clk_khz / m->clock;
+
+		/* remove packet overhead when possible */
+		hfp = max(hfp - 6, 0);
+		hbp = max(hbp - 6, 0);
+		hsa = max(hsa - 6, 0);
+
+		dev_dbg(dsi->dev, "calculated hfp: %u, hbp: %u, hsa: %u",
+			hfp, hbp, hsa);
+
 		reg = DSIM_CMD_ALLOW(0xf)
 			| DSIM_STABLE_VFP(m->vsync_start - m->vdisplay)
 			| DSIM_MAIN_VBP(m->vtotal - m->vsync_end);
 		samsung_dsim_write(dsi, DSIM_MVPORCH_REG, reg);

-		reg = DSIM_MAIN_HFP(m->hsync_start - m->hdisplay)
-			| DSIM_MAIN_HBP(m->htotal - m->hsync_end);
+		reg = DSIM_MAIN_HFP(hfp) | DSIM_MAIN_HBP(hbp);
 		samsung_dsim_write(dsi, DSIM_MHPORCH_REG, reg);

 		reg = DSIM_MAIN_VSA(m->vsync_end - m->vsync_start)
-			| DSIM_MAIN_HSA(m->hsync_end - m->hsync_start);
+			| DSIM_MAIN_HSA(hsa);
 		samsung_dsim_write(dsi, DSIM_MSYNC_REG, reg);
 	}
 	reg =  DSIM_MAIN_HRESOL(m->hdisplay, num_bits_resol) |
@ -1347,6 +1435,9 @@ static void samsung_dsim_atomic_pre_enable(struct drm_bridge *bridge,
 		ret = samsung_dsim_init(dsi);
 		if (ret)
 			return;
+
+		samsung_dsim_set_display_mode(dsi);
+		samsung_dsim_set_display_enable(dsi, true);
 	}
 }

@ -1354,9 +1445,16 @@ static void samsung_dsim_atomic_enable(struct drm_bridge *bridge,
 				       struct drm_bridge_state *old_bridge_state)
 {
 	struct samsung_dsim *dsi = bridge_to_dsi(bridge);
+	u32 reg;

-	samsung_dsim_set_display_mode(dsi);
-	samsung_dsim_set_display_enable(dsi, true);
+	if (samsung_dsim_hw_is_exynos(dsi->plat_data->hw_type)) {
+		samsung_dsim_set_display_mode(dsi);
+		samsung_dsim_set_display_enable(dsi, true);
+	} else {
+		reg = samsung_dsim_read(dsi, DSIM_ESCMODE_REG);
+		reg &= ~DSIM_FORCE_STOP_STATE;
+		samsung_dsim_write(dsi, DSIM_ESCMODE_REG, reg);
+	}

 	dsi->state |= DSIM_STATE_VIDOUT_AVAILABLE;
 }
@ -1365,10 +1463,17 @@ static void samsung_dsim_atomic_disable(struct drm_bridge *bridge,
 					struct drm_bridge_state *old_bridge_state)
 {
 	struct samsung_dsim *dsi = bridge_to_dsi(bridge);
+	u32 reg;

 	if (!(dsi->state & DSIM_STATE_ENABLED))
 		return;

+	if (!samsung_dsim_hw_is_exynos(dsi->plat_data->hw_type)) {
+		reg = samsung_dsim_read(dsi, DSIM_ESCMODE_REG);
+		reg |= DSIM_FORCE_STOP_STATE;
+		samsung_dsim_write(dsi, DSIM_ESCMODE_REG, reg);
+	}
+
 	dsi->state &= ~DSIM_STATE_VIDOUT_AVAILABLE;
 }

@ -1689,11 +1794,11 @@ static const struct mipi_dsi_host_ops samsung_dsim_ops = {
 };

 static int samsung_dsim_of_read_u32(const struct device_node *np,
-				    const char *propname, u32 *out_value)
+				    const char *propname, u32 *out_value, bool optional)
 {
 	int ret = of_property_read_u32(np, propname, out_value);

-	if (ret < 0)
+	if (ret < 0 && !optional)
 		pr_err("%pOF: failed to get '%s' property\n", np, propname);

 	return ret;
@ -1706,19 +1811,30 @@ static int samsung_dsim_parse_dt(struct samsung_dsim *dsi)
 	u32 lane_polarities[5] = { 0 };
 	struct device_node *endpoint;
 	int i, nr_lanes, ret;
+	struct clk *pll_clk;

 	ret = samsung_dsim_of_read_u32(node, "samsung,pll-clock-frequency",
-				       &dsi->pll_clk_rate);
-	if (ret < 0)
-		return ret;
+				       &dsi->pll_clk_rate, 1);
+	/* If it doesn't exist, read it from the clock instead of failing */
+	if (ret < 0) {
+		dev_dbg(dev, "Using sclk_mipi for pll clock frequency\n");
+		pll_clk = devm_clk_get(dev, "sclk_mipi");
+		if (!IS_ERR(pll_clk))
+			dsi->pll_clk_rate = clk_get_rate(pll_clk);
+		else
+			return PTR_ERR(pll_clk);
+	}

+	/* If it doesn't exist, use pixel clock instead of failing */
 	ret = samsung_dsim_of_read_u32(node, "samsung,burst-clock-frequency",
-				       &dsi->burst_clk_rate);
-	if (ret < 0)
-		return ret;
+				       &dsi->burst_clk_rate, 1);
+	if (ret < 0) {
+		dev_dbg(dev, "Using pixel clock for HS clock frequency\n");
+		dsi->burst_clk_rate = 0;
+	}

 	ret = samsung_dsim_of_read_u32(node, "samsung,esc-clock-frequency",
-				       &dsi->esc_clk_rate);
+				       &dsi->esc_clk_rate, 0);
 	if (ret < 0)
 		return ret;

--- a/drivers/gpu/drm/bridge/sii902x.c
+++ b/drivers/gpu/drm/bridge/sii902x.c
@ -1151,7 +1151,7 @@ static const struct i2c_device_id sii902x_i2c_ids[] = {
 MODULE_DEVICE_TABLE(i2c, sii902x_i2c_ids);

 static struct i2c_driver sii902x_driver = {
-	.probe_new = sii902x_probe,
+	.probe = sii902x_probe,
 	.remove = sii902x_remove,
 	.driver = {
 		.name = "sii902x",
--- a/drivers/gpu/drm/bridge/sii9234.c
+++ b/drivers/gpu/drm/bridge/sii9234.c
@ -955,7 +955,7 @@ static struct i2c_driver sii9234_driver = {
 		.name	= "sii9234",
 		.of_match_table = sii9234_dt_match,
 	},
-	.probe_new = sii9234_probe,
+	.probe = sii9234_probe,
 	.remove = sii9234_remove,
 	.id_table = sii9234_id,
 };
--- a/drivers/gpu/drm/bridge/sil-sii8620.c
+++ b/drivers/gpu/drm/bridge/sil-sii8620.c
@ -2378,7 +2378,7 @@ static struct i2c_driver sii8620_driver = {
 		.name	= "sii8620",
 		.of_match_table = of_match_ptr(sii8620_dt_match),
 	},
-	.probe_new	= sii8620_probe,
+	.probe		= sii8620_probe,
 	.remove		= sii8620_remove,
 	.id_table = sii8620_id,
 };
--- a/drivers/gpu/drm/bridge/tc358767.c
+++ b/drivers/gpu/drm/bridge/tc358767.c
@ -1781,7 +1781,200 @@ static const struct drm_bridge_funcs tc_edp_bridge_funcs = {

 static bool tc_readable_reg(struct device *dev, unsigned int reg)
 {
-	return reg != SYSCTRL;
+	switch (reg) {
+	/* DSI D-PHY Layer */
+	case 0x004:
+	case 0x020:
+	case 0x024:
+	case 0x028:
+	case 0x02c:
+	case 0x030:
+	case 0x038:
+	case 0x040:
+	case 0x044:
+	case 0x048:
+	case 0x04c:
+	case 0x050:
+	case 0x054:
+	/* DSI PPI Layer */
+	case PPI_STARTPPI:
+	case 0x108:
+	case 0x110:
+	case PPI_LPTXTIMECNT:
+	case PPI_LANEENABLE:
+	case PPI_TX_RX_TA:
+	case 0x140:
+	case PPI_D0S_ATMR:
+	case PPI_D1S_ATMR:
+	case 0x14c:
+	case 0x150:
+	case PPI_D0S_CLRSIPOCOUNT:
+	case PPI_D1S_CLRSIPOCOUNT:
+	case PPI_D2S_CLRSIPOCOUNT:
+	case PPI_D3S_CLRSIPOCOUNT:
+	case 0x180:
+	case 0x184:
+	case 0x188:
+	case 0x18c:
+	case 0x190:
+	case 0x1a0:
+	case 0x1a4:
+	case 0x1a8:
+	case 0x1ac:
+	case 0x1b0:
+	case 0x1c0:
+	case 0x1c4:
+	case 0x1c8:
+	case 0x1cc:
+	case 0x1d0:
+	case 0x1e0:
+	case 0x1e4:
+	case 0x1f0:
+	case 0x1f4:
+	/* DSI Protocol Layer */
+	case DSI_STARTDSI:
+	case 0x208:
+	case DSI_LANEENABLE:
+	case 0x214:
+	case 0x218:
+	case 0x220:
+	case 0x224:
+	case 0x228:
+	case 0x230:
+	/* DSI General */
+	case 0x300:
+	/* DSI Application Layer */
+	case 0x400:
+	case 0x404:
+	/* DPI */
+	case DPIPXLFMT:
+	/* Parallel Output */
+	case POCTRL:
+	/* Video Path0 Configuration */
+	case VPCTRL0:
+	case HTIM01:
+	case HTIM02:
+	case VTIM01:
+	case VTIM02:
+	case VFUEN0:
+	/* System */
+	case TC_IDREG:
+	case 0x504:
+	case SYSSTAT:
+	case SYSRSTENB:
+	case SYSCTRL:
+	/* I2C */
+	case 0x520:
+	/* GPIO */
+	case GPIOM:
+	case GPIOC:
+	case GPIOO:
+	case GPIOI:
+	/* Interrupt */
+	case INTCTL_G:
+	case INTSTS_G:
+	case 0x570:
+	case 0x574:
+	case INT_GP0_LCNT:
+	case INT_GP1_LCNT:
+	/* DisplayPort Control */
+	case DP0CTL:
+	/* DisplayPort Clock */
+	case DP0_VIDMNGEN0:
+	case DP0_VIDMNGEN1:
+	case DP0_VMNGENSTATUS:
+	case 0x628:
+	case 0x62c:
+	case 0x630:
+	/* DisplayPort Main Channel */
+	case DP0_SECSAMPLE:
+	case DP0_VIDSYNCDELAY:
+	case DP0_TOTALVAL:
+	case DP0_STARTVAL:
+	case DP0_ACTIVEVAL:
+	case DP0_SYNCVAL:
+	case DP0_MISC:
+	/* DisplayPort Aux Channel */
+	case DP0_AUXCFG0:
+	case DP0_AUXCFG1:
+	case DP0_AUXADDR:
+	case 0x66c:
+	case 0x670:
+	case 0x674:
+	case 0x678:
+	case 0x67c:
+	case 0x680:
+	case 0x684:
+	case 0x688:
+	case DP0_AUXSTATUS:
+	case DP0_AUXI2CADR:
+	/* DisplayPort Link Training */
+	case DP0_SRCCTRL:
+	case DP0_LTSTAT:
+	case DP0_SNKLTCHGREQ:
+	case DP0_LTLOOPCTRL:
+	case DP0_SNKLTCTRL:
+	case 0x6e8:
+	case 0x6ec:
+	case 0x6f0:
+	case 0x6f4:
+	/* DisplayPort Audio */
+	case 0x700:
+	case 0x704:
+	case 0x708:
+	case 0x70c:
+	case 0x710:
+	case 0x714:
+	case 0x718:
+	case 0x71c:
+	case 0x720:
+	/* DisplayPort Source Control */
+	case DP1_SRCCTRL:
+	/* DisplayPort PHY */
+	case DP_PHY_CTRL:
+	case 0x810:
+	case 0x814:
+	case 0x820:
+	case 0x840:
+	/* I2S */
+	case 0x880:
+	case 0x888:
+	case 0x88c:
+	case 0x890:
+	case 0x894:
+	case 0x898:
+	case 0x89c:
+	case 0x8a0:
+	case 0x8a4:
+	case 0x8a8:
+	case 0x8ac:
+	case 0x8b0:
+	case 0x8b4:
+	/* PLL */
+	case DP0_PLLCTRL:
+	case DP1_PLLCTRL:
+	case PXL_PLLCTRL:
+	case PXL_PLLPARAM:
+	case SYS_PLLPARAM:
+	/* HDCP */
+	case 0x980:
+	case 0x984:
+	case 0x988:
+	case 0x98c:
+	case 0x990:
+	case 0x994:
+	case 0x998:
+	case 0x99c:
+	case 0x9a0:
+	case 0x9a4:
+	case 0x9a8:
+	case 0x9ac:
+	/* Debug */
+	case TSTCTL:
+	case PLL_DBG:
+		return true;
+	}
+	return false;
 }

 static const struct regmap_range tc_volatile_ranges[] = {
@ -2209,7 +2402,7 @@ static struct i2c_driver tc358767_driver = {
 		.of_match_table = tc358767_of_ids,
 	},
 	.id_table = tc358767_i2c_ids,
-	.probe_new = tc_probe,
+	.probe = tc_probe,
 	.remove	= tc_remove,
 };
 module_i2c_driver(tc358767_driver);
--- a/drivers/gpu/drm/bridge/tc358768.c
+++ b/drivers/gpu/drm/bridge/tc358768.c
@ -1134,7 +1134,7 @@ static struct i2c_driver tc358768_driver = {
 		.of_match_table = tc358768_of_ids,
 	},
 	.id_table = tc358768_i2c_ids,
-	.probe_new = tc358768_i2c_probe,
+	.probe = tc358768_i2c_probe,
 	.remove	= tc358768_i2c_remove,
 };
 module_i2c_driver(tc358768_driver);
--- a/drivers/gpu/drm/bridge/tc358775.c
+++ b/drivers/gpu/drm/bridge/tc358775.c
@ -728,7 +728,7 @@ static struct i2c_driver tc358775_driver = {
 		.of_match_table = tc358775_of_ids,
 	},
 	.id_table = tc358775_i2c_ids,
-	.probe_new = tc_probe,
+	.probe = tc_probe,
 	.remove	= tc_remove,
 };
 module_i2c_driver(tc358775_driver);
--- a/drivers/gpu/drm/bridge/ti-dlpc3433.c
+++ b/drivers/gpu/drm/bridge/ti-dlpc3433.c
@ -400,7 +400,7 @@ static const struct of_device_id dlpc3433_match_table[] = {
 MODULE_DEVICE_TABLE(of, dlpc3433_match_table);

 static struct i2c_driver dlpc3433_driver = {
-	.probe_new = dlpc3433_probe,
+	.probe = dlpc3433_probe,
 	.remove = dlpc3433_remove,
 	.id_table = dlpc3433_id,
 	.driver = {
--- a/drivers/gpu/drm/bridge/ti-sn65dsi83.c
+++ b/drivers/gpu/drm/bridge/ti-sn65dsi83.c
@ -321,8 +321,8 @@ static u8 sn65dsi83_get_dsi_div(struct sn65dsi83 *ctx)
 	return dsi_div - 1;
 }

-static void sn65dsi83_atomic_enable(struct drm_bridge *bridge,
-				    struct drm_bridge_state *old_bridge_state)
+static void sn65dsi83_atomic_pre_enable(struct drm_bridge *bridge,
+					struct drm_bridge_state *old_bridge_state)
 {
 	struct sn65dsi83 *ctx = bridge_to_sn65dsi83(bridge);
 	struct drm_atomic_state *state = old_bridge_state->base.state;
@ -485,11 +485,22 @@ static void sn65dsi83_atomic_enable(struct drm_bridge *bridge,
 	/* Trigger reset after CSR register update. */
 	regmap_write(ctx->regmap, REG_RC_RESET, REG_RC_RESET_SOFT_RESET);

+	/* Wait for 10ms after soft reset as specified in datasheet */
+	usleep_range(10000, 12000);
+}
+
+static void sn65dsi83_atomic_enable(struct drm_bridge *bridge,
+				    struct drm_bridge_state *old_bridge_state)
+{
+	struct sn65dsi83 *ctx = bridge_to_sn65dsi83(bridge);
+	unsigned int pval;
+
 	/* Clear all errors that got asserted during initialization. */
 	regmap_read(ctx->regmap, REG_IRQ_STAT, &pval);
 	regmap_write(ctx->regmap, REG_IRQ_STAT, pval);

-	usleep_range(10000, 12000);
+	/* Wait for 1ms and check for errors in status register */
+	usleep_range(1000, 1100);
 	regmap_read(ctx->regmap, REG_IRQ_STAT, &pval);
 	if (pval)
 		dev_err(ctx->dev, "Unexpected link status 0x%02x\n", pval);
@ -556,6 +567,7 @@ static const struct drm_bridge_funcs sn65dsi83_funcs = {
 	.attach			= sn65dsi83_attach,
 	.detach			= sn65dsi83_detach,
 	.atomic_enable		= sn65dsi83_atomic_enable,
+	.atomic_pre_enable	= sn65dsi83_atomic_pre_enable,
 	.atomic_disable		= sn65dsi83_atomic_disable,
 	.mode_valid		= sn65dsi83_mode_valid,

@ -698,6 +710,7 @@ static int sn65dsi83_probe(struct i2c_client *client)

 	ctx->bridge.funcs = &sn65dsi83_funcs;
 	ctx->bridge.of_node = dev->of_node;
+	ctx->bridge.pre_enable_prev_first = true;
 	drm_bridge_add(&ctx->bridge);

 	ret = sn65dsi83_host_attach(ctx);
@ -735,7 +748,7 @@ static const struct of_device_id sn65dsi83_match_table[] = {
 MODULE_DEVICE_TABLE(of, sn65dsi83_match_table);

 static struct i2c_driver sn65dsi83_driver = {
-	.probe_new = sn65dsi83_probe,
+	.probe = sn65dsi83_probe,
 	.remove = sn65dsi83_remove,
 	.id_table = sn65dsi83_id,
 	.driver = {
--- a/drivers/gpu/drm/bridge/ti-sn65dsi86.c
+++ b/drivers/gpu/drm/bridge/ti-sn65dsi86.c
@ -1970,7 +1970,7 @@ static struct i2c_driver ti_sn65dsi86_driver = {
 		.of_match_table = ti_sn65dsi86_match_table,
 		.pm = &ti_sn65dsi86_pm_ops,
 	},
-	.probe_new = ti_sn65dsi86_probe,
+	.probe = ti_sn65dsi86_probe,
 	.id_table = ti_sn65dsi86_id,
 };

--- a/drivers/gpu/drm/bridge/ti-tfp410.c
+++ b/drivers/gpu/drm/bridge/ti-tfp410.c
@ -408,7 +408,7 @@ static struct i2c_driver tfp410_i2c_driver = {
 		.of_match_table = of_match_ptr(tfp410_match),
 	},
 	.id_table	= tfp410_i2c_ids,
-	.probe_new	= tfp410_i2c_probe,
+	.probe		= tfp410_i2c_probe,
 	.remove		= tfp410_i2c_remove,
 };
 #endif /* IS_ENABLED(CONFIG_I2C) */
--- a/drivers/gpu/drm/drm_fb_helper.c
+++ b/drivers/gpu/drm/drm_fb_helper.c
@ -670,6 +670,28 @@ static void drm_fb_helper_memory_range_to_clip(struct fb_info *info, off_t off,
 	drm_rect_init(clip, x1, y1, x2 - x1, y2 - y1);
 }

+/* Don't use in new code. */
+void drm_fb_helper_damage_range(struct fb_info *info, off_t off, size_t len)
+{
+	struct drm_fb_helper *fb_helper = info->par;
+	struct drm_rect damage_area;
+
+	drm_fb_helper_memory_range_to_clip(info, off, len, &damage_area);
+	drm_fb_helper_damage(fb_helper, damage_area.x1, damage_area.y1,
+			     drm_rect_width(&damage_area),
+			     drm_rect_height(&damage_area));
+}
+EXPORT_SYMBOL(drm_fb_helper_damage_range);
+
+/* Don't use in new code. */
+void drm_fb_helper_damage_area(struct fb_info *info, u32 x, u32 y, u32 width, u32 height)
+{
+	struct drm_fb_helper *fb_helper = info->par;
+
+	drm_fb_helper_damage(fb_helper, x, y, width, height);
+}
+EXPORT_SYMBOL(drm_fb_helper_damage_area);
+
 /**
 * drm_fb_helper_deferred_io() - fbdev deferred_io callback function
 * @info: fb_info struct pointer
@ -714,220 +736,6 @@ void drm_fb_helper_deferred_io(struct fb_info *info, struct list_head *pagerefli
 }
 EXPORT_SYMBOL(drm_fb_helper_deferred_io);

-/**
- * drm_fb_helper_sys_read - Implements struct &fb_ops.fb_read for system memory
- * @info: fb_info struct pointer
- * @buf: userspace buffer to read from framebuffer memory
- * @count: number of bytes to read from framebuffer memory
- * @ppos: read offset within framebuffer memory
- *
- * Returns:
- * The number of bytes read on success, or an error code otherwise.
- */
-ssize_t drm_fb_helper_sys_read(struct fb_info *info, char __user *buf,
-			       size_t count, loff_t *ppos)
-{
-	return fb_sys_read(info, buf, count, ppos);
-}
-EXPORT_SYMBOL(drm_fb_helper_sys_read);
-
-/**
- * drm_fb_helper_sys_write - Implements struct &fb_ops.fb_write for system memory
- * @info: fb_info struct pointer
- * @buf: userspace buffer to write to framebuffer memory
- * @count: number of bytes to write to framebuffer memory
- * @ppos: write offset within framebuffer memory
- *
- * Returns:
- * The number of bytes written on success, or an error code otherwise.
- */
-ssize_t drm_fb_helper_sys_write(struct fb_info *info, const char __user *buf,
-				size_t count, loff_t *ppos)
-{
-	struct drm_fb_helper *helper = info->par;
-	loff_t pos = *ppos;
-	ssize_t ret;
-	struct drm_rect damage_area;
-
-	ret = fb_sys_write(info, buf, count, ppos);
-	if (ret <= 0)
-		return ret;
-
-	if (helper->funcs->fb_dirty) {
-		drm_fb_helper_memory_range_to_clip(info, pos, ret, &damage_area);
-		drm_fb_helper_damage(helper, damage_area.x1, damage_area.y1,
-				     drm_rect_width(&damage_area),
-				     drm_rect_height(&damage_area));
-	}
-
-	return ret;
-}
-EXPORT_SYMBOL(drm_fb_helper_sys_write);
-
-/**
- * drm_fb_helper_sys_fillrect - wrapper around sys_fillrect
- * @info: fbdev registered by the helper
- * @rect: info about rectangle to fill
- *
- * A wrapper around sys_fillrect implemented by fbdev core
- */
-void drm_fb_helper_sys_fillrect(struct fb_info *info,
-				const struct fb_fillrect *rect)
-{
-	struct drm_fb_helper *helper = info->par;
-
-	sys_fillrect(info, rect);
-
-	if (helper->funcs->fb_dirty)
-		drm_fb_helper_damage(helper, rect->dx, rect->dy, rect->width, rect->height);
-}
-EXPORT_SYMBOL(drm_fb_helper_sys_fillrect);
-
-/**
- * drm_fb_helper_sys_copyarea - wrapper around sys_copyarea
- * @info: fbdev registered by the helper
- * @area: info about area to copy
- *
- * A wrapper around sys_copyarea implemented by fbdev core
- */
-void drm_fb_helper_sys_copyarea(struct fb_info *info,
-				const struct fb_copyarea *area)
-{
-	struct drm_fb_helper *helper = info->par;
-
-	sys_copyarea(info, area);
-
-	if (helper->funcs->fb_dirty)
-		drm_fb_helper_damage(helper, area->dx, area->dy, area->width, area->height);
-}
-EXPORT_SYMBOL(drm_fb_helper_sys_copyarea);
-
-/**
- * drm_fb_helper_sys_imageblit - wrapper around sys_imageblit
- * @info: fbdev registered by the helper
- * @image: info about image to blit
- *
- * A wrapper around sys_imageblit implemented by fbdev core
- */
-void drm_fb_helper_sys_imageblit(struct fb_info *info,
-				 const struct fb_image *image)
-{
-	struct drm_fb_helper *helper = info->par;
-
-	sys_imageblit(info, image);
-
-	if (helper->funcs->fb_dirty)
-		drm_fb_helper_damage(helper, image->dx, image->dy, image->width, image->height);
-}
-EXPORT_SYMBOL(drm_fb_helper_sys_imageblit);
-
-/**
- * drm_fb_helper_cfb_read - Implements struct &fb_ops.fb_read for I/O memory
- * @info: fb_info struct pointer
- * @buf: userspace buffer to read from framebuffer memory
- * @count: number of bytes to read from framebuffer memory
- * @ppos: read offset within framebuffer memory
- *
- * Returns:
- * The number of bytes read on success, or an error code otherwise.
- */
-ssize_t drm_fb_helper_cfb_read(struct fb_info *info, char __user *buf,
-			       size_t count, loff_t *ppos)
-{
-	return fb_io_read(info, buf, count, ppos);
-}
-EXPORT_SYMBOL(drm_fb_helper_cfb_read);
-
-/**
- * drm_fb_helper_cfb_write - Implements struct &fb_ops.fb_write for I/O memory
- * @info: fb_info struct pointer
- * @buf: userspace buffer to write to framebuffer memory
- * @count: number of bytes to write to framebuffer memory
- * @ppos: write offset within framebuffer memory
- *
- * Returns:
- * The number of bytes written on success, or an error code otherwise.
- */
-ssize_t drm_fb_helper_cfb_write(struct fb_info *info, const char __user *buf,
-				size_t count, loff_t *ppos)
-{
-	struct drm_fb_helper *helper = info->par;
-	loff_t pos = *ppos;
-	ssize_t ret;
-	struct drm_rect damage_area;
-
-	ret = fb_io_write(info, buf, count, ppos);
-	if (ret <= 0)
-		return ret;
-
-	if (helper->funcs->fb_dirty) {
-		drm_fb_helper_memory_range_to_clip(info, pos, ret, &damage_area);
-		drm_fb_helper_damage(helper, damage_area.x1, damage_area.y1,
-				     drm_rect_width(&damage_area),
-				     drm_rect_height(&damage_area));
-	}
-
-	return ret;
-}
-EXPORT_SYMBOL(drm_fb_helper_cfb_write);
-
-/**
- * drm_fb_helper_cfb_fillrect - wrapper around cfb_fillrect
- * @info: fbdev registered by the helper
- * @rect: info about rectangle to fill
- *
- * A wrapper around cfb_fillrect implemented by fbdev core
- */
-void drm_fb_helper_cfb_fillrect(struct fb_info *info,
-				const struct fb_fillrect *rect)
-{
-	struct drm_fb_helper *helper = info->par;
-
-	cfb_fillrect(info, rect);
-
-	if (helper->funcs->fb_dirty)
-		drm_fb_helper_damage(helper, rect->dx, rect->dy, rect->width, rect->height);
-}
-EXPORT_SYMBOL(drm_fb_helper_cfb_fillrect);
-
-/**
- * drm_fb_helper_cfb_copyarea - wrapper around cfb_copyarea
- * @info: fbdev registered by the helper
- * @area: info about area to copy
- *
- * A wrapper around cfb_copyarea implemented by fbdev core
- */
-void drm_fb_helper_cfb_copyarea(struct fb_info *info,
-				const struct fb_copyarea *area)
-{
-	struct drm_fb_helper *helper = info->par;
-
-	cfb_copyarea(info, area);
-
-	if (helper->funcs->fb_dirty)
-		drm_fb_helper_damage(helper, area->dx, area->dy, area->width, area->height);
-}
-EXPORT_SYMBOL(drm_fb_helper_cfb_copyarea);
-
-/**
- * drm_fb_helper_cfb_imageblit - wrapper around cfb_imageblit
- * @info: fbdev registered by the helper
- * @image: info about image to blit
- *
- * A wrapper around cfb_imageblit implemented by fbdev core
- */
-void drm_fb_helper_cfb_imageblit(struct fb_info *info,
-				 const struct fb_image *image)
-{
-	struct drm_fb_helper *helper = info->par;
-
-	cfb_imageblit(info, image);
-
-	if (helper->funcs->fb_dirty)
-		drm_fb_helper_damage(helper, image->dx, image->dy, image->width, image->height);
-}
-EXPORT_SYMBOL(drm_fb_helper_cfb_imageblit);
-
 /**
 * drm_fb_helper_set_suspend - wrapper around fb_set_suspend
 * @fb_helper: driver-allocated fbdev helper, can be NULL
--- a/drivers/gpu/drm/drm_fbdev_dma.c
+++ b/drivers/gpu/drm/drm_fbdev_dma.c
@ -1,5 +1,7 @@
 // SPDX-License-Identifier: MIT

+#include <linux/fb.h>
+
 #include <drm/drm_crtc_helper.h>
 #include <drm/drm_drv.h>
 #include <drm/drm_fb_helper.h>
@ -64,14 +66,11 @@ static const struct fb_ops drm_fbdev_dma_fb_ops = {
 	.owner = THIS_MODULE,
 	.fb_open = drm_fbdev_dma_fb_open,
 	.fb_release = drm_fbdev_dma_fb_release,
-	.fb_read = drm_fb_helper_sys_read,
-	.fb_write = drm_fb_helper_sys_write,
+	__FB_DEFAULT_SYS_OPS_RDWR,
 	DRM_FB_HELPER_DEFAULT_OPS,
-	.fb_fillrect = drm_fb_helper_sys_fillrect,
-	.fb_copyarea = drm_fb_helper_sys_copyarea,
-	.fb_imageblit = drm_fb_helper_sys_imageblit,
-	.fb_destroy = drm_fbdev_dma_fb_destroy,
+	__FB_DEFAULT_SYS_OPS_DRAW,
 	.fb_mmap = drm_fbdev_dma_fb_mmap,
+	.fb_destroy = drm_fbdev_dma_fb_destroy,
 };

 /*
--- a/drivers/gpu/drm/drm_fbdev_generic.c
+++ b/drivers/gpu/drm/drm_fbdev_generic.c
@ -34,6 +34,10 @@ static int drm_fbdev_generic_fb_release(struct fb_info *info, int user)
 	return 0;
 }

+FB_GEN_DEFAULT_DEFERRED_SYS_OPS(drm_fbdev_generic,
+				drm_fb_helper_damage_range,
+				drm_fb_helper_damage_area);
+
 static void drm_fbdev_generic_fb_destroy(struct fb_info *info)
 {
 	struct drm_fb_helper *fb_helper = info->par;
@ -56,13 +60,8 @@ static const struct fb_ops drm_fbdev_generic_fb_ops = {
 	.owner		= THIS_MODULE,
 	.fb_open	= drm_fbdev_generic_fb_open,
 	.fb_release	= drm_fbdev_generic_fb_release,
-	.fb_read	= drm_fb_helper_sys_read,
-	.fb_write	= drm_fb_helper_sys_write,
+	FB_DEFAULT_DEFERRED_OPS(drm_fbdev_generic),
 	DRM_FB_HELPER_DEFAULT_OPS,
-	.fb_fillrect	= drm_fb_helper_sys_fillrect,
-	.fb_copyarea	= drm_fb_helper_sys_copyarea,
-	.fb_imageblit	= drm_fb_helper_sys_imageblit,
-	.fb_mmap	= fb_deferred_io_mmap,
 	.fb_destroy	= drm_fbdev_generic_fb_destroy,
 };

--- a/drivers/gpu/drm/drm_file.c
+++ b/drivers/gpu/drm/drm_file.c
@ -42,6 +42,7 @@
 #include <drm/drm_client.h>
 #include <drm/drm_drv.h>
 #include <drm/drm_file.h>
+#include <drm/drm_gem.h>
 #include <drm/drm_print.h>

 #include "drm_crtc_internal.h"
@ -148,6 +149,7 @@ bool drm_dev_needs_global_mutex(struct drm_device *dev)
 */
 struct drm_file *drm_file_alloc(struct drm_minor *minor)
 {
+	static atomic64_t ident = ATOMIC_INIT(0);
 	struct drm_device *dev = minor->dev;
 	struct drm_file *file;
 	int ret;
@ -156,6 +158,8 @@ struct drm_file *drm_file_alloc(struct drm_minor *minor)
 	if (!file)
 		return ERR_PTR(-ENOMEM);

+	/* Get a unique identifier for fdinfo: */
+	file->client_id = atomic64_inc_return(&ident);
 	file->pid = get_pid(task_tgid(current));
 	file->minor = minor;

@ -868,6 +872,134 @@ void drm_send_event(struct drm_device *dev, struct drm_pending_event *e)
 }
 EXPORT_SYMBOL(drm_send_event);

+static void print_size(struct drm_printer *p, const char *stat,
+		       const char *region, u64 sz)
+{
+	const char *units[] = {"", " KiB", " MiB"};
+	unsigned u;
+
+	for (u = 0; u < ARRAY_SIZE(units) - 1; u++) {
+		if (sz < SZ_1K)
+			break;
+		sz = div_u64(sz, SZ_1K);
+	}
+
+	drm_printf(p, "drm-%s-%s:\t%llu%s\n", stat, region, sz, units[u]);
+}
+
+/**
+ * drm_print_memory_stats - A helper to print memory stats
+ * @p: The printer to print output to
+ * @stats: The collected memory stats
+ * @supported_status: Bitmask of optional stats which are available
+ * @region: The memory region
+ *
+ */
+void drm_print_memory_stats(struct drm_printer *p,
+			    const struct drm_memory_stats *stats,
+			    enum drm_gem_object_status supported_status,
+			    const char *region)
+{
+	print_size(p, "total", region, stats->private + stats->shared);
+	print_size(p, "shared", region, stats->shared);
+	print_size(p, "active", region, stats->active);
+
+	if (supported_status & DRM_GEM_OBJECT_RESIDENT)
+		print_size(p, "resident", region, stats->resident);
+
+	if (supported_status & DRM_GEM_OBJECT_PURGEABLE)
+		print_size(p, "purgeable", region, stats->purgeable);
+}
+EXPORT_SYMBOL(drm_print_memory_stats);
+
+/**
+ * drm_show_memory_stats - Helper to collect and show standard fdinfo memory stats
+ * @p: the printer to print output to
+ * @file: the DRM file
+ *
+ * Helper to iterate over GEM objects with a handle allocated in the specified
+ * file.
+ */
+void drm_show_memory_stats(struct drm_printer *p, struct drm_file *file)
+{
+	struct drm_gem_object *obj;
+	struct drm_memory_stats status = {};
+	enum drm_gem_object_status supported_status;
+	int id;
+
+	spin_lock(&file->table_lock);
+	idr_for_each_entry (&file->object_idr, obj, id) {
+		enum drm_gem_object_status s = 0;
+
+		if (obj->funcs && obj->funcs->status) {
+			s = obj->funcs->status(obj);
+			supported_status = DRM_GEM_OBJECT_RESIDENT |
+					DRM_GEM_OBJECT_PURGEABLE;
+		}
+
+		if (obj->handle_count > 1) {
+			status.shared += obj->size;
+		} else {
+			status.private += obj->size;
+		}
+
+		if (s & DRM_GEM_OBJECT_RESIDENT) {
+			status.resident += obj->size;
+		} else {
+			/* If already purged or not yet backed by pages, don't
+			 * count it as purgeable:
+			 */
+			s &= ~DRM_GEM_OBJECT_PURGEABLE;
+		}
+
+		if (!dma_resv_test_signaled(obj->resv, dma_resv_usage_rw(true))) {
+			status.active += obj->size;
+
+			/* If still active, don't count as purgeable: */
+			s &= ~DRM_GEM_OBJECT_PURGEABLE;
+		}
+
+		if (s & DRM_GEM_OBJECT_PURGEABLE)
+			status.purgeable += obj->size;
+	}
+	spin_unlock(&file->table_lock);
+
+	drm_print_memory_stats(p, &status, supported_status, "memory");
+}
+EXPORT_SYMBOL(drm_show_memory_stats);
+
+/**
+ * drm_show_fdinfo - helper for drm file fops
+ * @m: output stream
+ * @f: the device file instance
+ *
+ * Helper to implement fdinfo, for userspace to query usage stats, etc, of a
+ * process using the GPU.  See also &drm_driver.show_fdinfo.
+ *
+ * For text output format description please see Documentation/gpu/drm-usage-stats.rst
+ */
+void drm_show_fdinfo(struct seq_file *m, struct file *f)
+{
+	struct drm_file *file = f->private_data;
+	struct drm_device *dev = file->minor->dev;
+	struct drm_printer p = drm_seq_file_printer(m);
+
+	drm_printf(&p, "drm-driver:\t%s\n", dev->driver->name);
+	drm_printf(&p, "drm-client-id:\t%llu\n", file->client_id);
+
+	if (dev_is_pci(dev->dev)) {
+		struct pci_dev *pdev = to_pci_dev(dev->dev);
+
+		drm_printf(&p, "drm-pdev:\t%04x:%02x:%02x.%d\n",
+			   pci_domain_nr(pdev->bus), pdev->bus->number,
+			   PCI_SLOT(pdev->devfn), PCI_FUNC(pdev->devfn));
+	}
+
+	if (dev->driver->show_fdinfo)
+		dev->driver->show_fdinfo(&p, file);
+}
+EXPORT_SYMBOL(drm_show_fdinfo);
+
 /**
 * mock_drm_getfile - Create a new struct file for the drm device
 * @minor: drm minor to wrap (e.g. #drm_device.primary)
--- a/drivers/gpu/drm/exynos/Kconfig
+++ b/drivers/gpu/drm/exynos/Kconfig
@ -7,6 +7,7 @@ config DRM_EXYNOS
 	select DRM_DISPLAY_HELPER if DRM_EXYNOS_DP
 	select DRM_KMS_HELPER
 	select VIDEOMODE_HELPERS
+	select FB_IO_HELPERS if DRM_FBDEV_EMULATION
 	select SND_SOC_HDMI_CODEC if SND_SOC
 	help
 	  Choose this option if you have a Samsung SoC Exynos chipset.
--- a/drivers/gpu/drm/exynos/exynos_drm_fbdev.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_fbdev.c
@ -8,6 +8,8 @@
 *	Seung-Woo Kim <sw0312.kim@samsung.com>
 */

+#include <linux/fb.h>
+
 #include <drm/drm_crtc_helper.h>
 #include <drm/drm_drv.h>
 #include <drm/drm_fb_helper.h>
@ -47,13 +49,10 @@ static void exynos_drm_fb_destroy(struct fb_info *info)

 static const struct fb_ops exynos_drm_fb_ops = {
 	.owner		= THIS_MODULE,
+	__FB_DEFAULT_IO_OPS_RDWR,
 	DRM_FB_HELPER_DEFAULT_OPS,
+	__FB_DEFAULT_IO_OPS_DRAW,
 	.fb_mmap        = exynos_drm_fb_mmap,
-	.fb_read	= drm_fb_helper_cfb_read,
-	.fb_write	= drm_fb_helper_cfb_write,
-	.fb_fillrect	= drm_fb_helper_cfb_fillrect,
-	.fb_copyarea	= drm_fb_helper_cfb_copyarea,
-	.fb_imageblit	= drm_fb_helper_cfb_imageblit,
 	.fb_destroy	= exynos_drm_fb_destroy,
 };

--- a/drivers/gpu/drm/gma500/Kconfig
+++ b/drivers/gpu/drm/gma500/Kconfig
@ -3,6 +3,7 @@ config DRM_GMA500
 	tristate "Intel GMA500/600/3600/3650 KMS Framebuffer"
 	depends on DRM && PCI && X86 && MMU
 	select DRM_KMS_HELPER
+	select FB_IO_HELPERS if DRM_FBDEV_EMULATION
 	select I2C
 	select I2C_ALGOBIT
 	# GMA500 depends on ACPI_VIDEO when ACPI is enabled, just like i915
--- a/drivers/gpu/drm/gma500/fbdev.c
+++ b/drivers/gpu/drm/gma500/fbdev.c
@ -5,6 +5,7 @@
 *
 **************************************************************************/

+#include <linux/fb.h>
 #include <linux/pfn_t.h>

 #include <drm/drm_crtc_helper.h>
@ -134,13 +135,10 @@ static void psb_fbdev_fb_destroy(struct fb_info *info)

 static const struct fb_ops psb_fbdev_fb_ops = {
 	.owner = THIS_MODULE,
+	__FB_DEFAULT_IO_OPS_RDWR,
 	DRM_FB_HELPER_DEFAULT_OPS,
 	.fb_setcolreg = psb_fbdev_fb_setcolreg,
-	.fb_read = drm_fb_helper_cfb_read,
-	.fb_write = drm_fb_helper_cfb_write,
-	.fb_fillrect = drm_fb_helper_cfb_fillrect,
-	.fb_copyarea = drm_fb_helper_cfb_copyarea,
-	.fb_imageblit = drm_fb_helper_cfb_imageblit,
+	__FB_DEFAULT_IO_OPS_DRAW,
 	.fb_mmap = psb_fbdev_fb_mmap,
 	.fb_destroy = psb_fbdev_fb_destroy,
 };
--- a/drivers/gpu/drm/i2c/tda9950.c
+++ b/drivers/gpu/drm/i2c/tda9950.c
@ -492,7 +492,7 @@ static struct i2c_device_id tda9950_ids[] = {
 MODULE_DEVICE_TABLE(i2c, tda9950_ids);

 static struct i2c_driver tda9950_driver = {
-	.probe_new = tda9950_probe,
+	.probe = tda9950_probe,
 	.remove = tda9950_remove,
 	.driver = {
 		.name = "tda9950",
--- a/drivers/gpu/drm/i2c/tda998x_drv.c
+++ b/drivers/gpu/drm/i2c/tda998x_drv.c
@ -2099,7 +2099,7 @@ static const struct i2c_device_id tda998x_ids[] = {
 MODULE_DEVICE_TABLE(i2c, tda998x_ids);

 static struct i2c_driver tda998x_driver = {
-	.probe_new = tda998x_probe,
+	.probe = tda998x_probe,
 	.remove = tda998x_remove,
 	.driver = {
 		.name = "tda998x",
--- a/drivers/gpu/drm/i915/Kconfig
+++ b/drivers/gpu/drm/i915/Kconfig
@ -17,6 +17,7 @@ config DRM_I915
 	select DRM_KMS_HELPER
 	select DRM_PANEL
 	select DRM_MIPI_DSI
+	select FB_IO_HELPERS if DRM_FBDEV_EMULATION
 	select RELAY
 	select I2C
 	select I2C_ALGOBIT
--- a/drivers/gpu/drm/i915/display/intel_fbdev.c
+++ b/drivers/gpu/drm/i915/display/intel_fbdev.c
@ -28,6 +28,7 @@
 #include <linux/console.h>
 #include <linux/delay.h>
 #include <linux/errno.h>
+#include <linux/fb.h>
 #include <linux/init.h>
 #include <linux/kernel.h>
 #include <linux/mm.h>
@ -84,6 +85,10 @@ static void intel_fbdev_invalidate(struct intel_fbdev *ifbdev)
 	intel_frontbuffer_invalidate(to_frontbuffer(ifbdev), ORIGIN_CPU);
 }

+FB_GEN_DEFAULT_DEFERRED_IO_OPS(intel_fbdev,
+			       drm_fb_helper_damage_range,
+			       drm_fb_helper_damage_area)
+
 static int intel_fbdev_set_par(struct fb_info *info)
 {
 	struct intel_fbdev *ifbdev = to_intel_fbdev(info->par);
@ -132,15 +137,12 @@ static int intel_fbdev_mmap(struct fb_info *info, struct vm_area_struct *vma)

 static const struct fb_ops intelfb_ops = {
 	.owner = THIS_MODULE,
+	__FB_DEFAULT_DEFERRED_OPS_RDWR(intel_fbdev),
 	DRM_FB_HELPER_DEFAULT_OPS,
 	.fb_set_par = intel_fbdev_set_par,
-	.fb_read = drm_fb_helper_cfb_read,
-	.fb_write = drm_fb_helper_cfb_write,
-	.fb_fillrect = drm_fb_helper_cfb_fillrect,
-	.fb_copyarea = drm_fb_helper_cfb_copyarea,
-	.fb_imageblit = drm_fb_helper_cfb_imageblit,
-	.fb_pan_display = intel_fbdev_pan_display,
 	.fb_blank = intel_fbdev_blank,
+	.fb_pan_display = intel_fbdev_pan_display,
+	__FB_DEFAULT_DEFERRED_OPS_DRAW(intel_fbdev),
 	.fb_mmap = intel_fbdev_mmap,
 };

--- a/drivers/gpu/drm/msm/Kconfig
+++ b/drivers/gpu/drm/msm/Kconfig
@ -21,6 +21,7 @@ config DRM_MSM
 	select DRM_BRIDGE
 	select DRM_PANEL_BRIDGE
 	select DRM_SCHED
+	select FB_SYS_HELPERS if DRM_FBDEV_EMULATION
 	select SHMEM
 	select TMPFS
 	select QCOM_SCM
--- a/drivers/gpu/drm/msm/msm_drv.c
+++ b/drivers/gpu/drm/msm/msm_drv.c
@ -1057,23 +1057,23 @@ static const struct drm_ioctl_desc msm_ioctls[] = {
 	DRM_IOCTL_DEF_DRV(MSM_SUBMITQUEUE_QUERY, msm_ioctl_submitqueue_query, DRM_RENDER_ALLOW),
 };

-static void msm_fop_show_fdinfo(struct seq_file *m, struct file *f)
+static void msm_show_fdinfo(struct drm_printer *p, struct drm_file *file)
 {
-	struct drm_file *file = f->private_data;
 	struct drm_device *dev = file->minor->dev;
 	struct msm_drm_private *priv = dev->dev_private;
-	struct drm_printer p = drm_seq_file_printer(m);

 	if (!priv->gpu)
 		return;

-	msm_gpu_show_fdinfo(priv->gpu, file->driver_priv, &p);
+	msm_gpu_show_fdinfo(priv->gpu, file->driver_priv, p);
+
+	drm_show_memory_stats(p, file);
 }

 static const struct file_operations fops = {
 	.owner = THIS_MODULE,
 	DRM_GEM_FOPS,
-	.show_fdinfo = msm_fop_show_fdinfo,
+	.show_fdinfo = drm_show_fdinfo,
 };

 static const struct drm_driver msm_driver = {
@ -1083,7 +1083,7 @@ static const struct drm_driver msm_driver = {
 				DRIVER_MODESET |
 				DRIVER_SYNCOBJ,
 	.open               = msm_open,
-	.postclose           = msm_postclose,
+	.postclose          = msm_postclose,
 	.dumb_create        = msm_gem_dumb_create,
 	.dumb_map_offset    = msm_gem_dumb_map_offset,
 	.prime_handle_to_fd = drm_gem_prime_handle_to_fd,
@ -1093,6 +1093,7 @@ static const struct drm_driver msm_driver = {
 #ifdef CONFIG_DEBUG_FS
 	.debugfs_init       = msm_debugfs_init,
 #endif
+	.show_fdinfo        = msm_show_fdinfo,
 	.ioctls             = msm_ioctls,
 	.num_ioctls         = ARRAY_SIZE(msm_ioctls),
 	.fops               = &fops,
--- a/drivers/gpu/drm/msm/msm_fbdev.c
+++ b/drivers/gpu/drm/msm/msm_fbdev.c
@ -4,6 +4,8 @@
 * Author: Rob Clark <robdclark@gmail.com>
 */

+#include <linux/fb.h>
+
 #include <drm/drm_drv.h>
 #include <drm/drm_crtc_helper.h>
 #include <drm/drm_fb_helper.h>
@ -23,6 +25,10 @@ module_param(fbdev, bool, 0600);
 * fbdev funcs, to implement legacy fbdev interface on top of drm driver
 */

+FB_GEN_DEFAULT_DEFERRED_SYS_OPS(msm_fbdev,
+				drm_fb_helper_damage_range,
+				drm_fb_helper_damage_area)
+
 static int msm_fbdev_mmap(struct fb_info *info, struct vm_area_struct *vma)
 {
 	struct drm_fb_helper *helper = (struct drm_fb_helper *)info->par;
@ -52,16 +58,9 @@ static void msm_fbdev_fb_destroy(struct fb_info *info)

 static const struct fb_ops msm_fb_ops = {
 	.owner = THIS_MODULE,
+	__FB_DEFAULT_DEFERRED_OPS_RDWR(msm_fbdev),
 	DRM_FB_HELPER_DEFAULT_OPS,
-
-	/* Note: to properly handle manual update displays, we wrap the
-	 * basic fbdev ops which write to the framebuffer
-	 */
-	.fb_read = drm_fb_helper_sys_read,
-	.fb_write = drm_fb_helper_sys_write,
-	.fb_fillrect = drm_fb_helper_sys_fillrect,
-	.fb_copyarea = drm_fb_helper_sys_copyarea,
-	.fb_imageblit = drm_fb_helper_sys_imageblit,
+	__FB_DEFAULT_DEFERRED_OPS_DRAW(msm_fbdev),
 	.fb_mmap = msm_fbdev_mmap,
 	.fb_destroy = msm_fbdev_fb_destroy,
 };
--- a/drivers/gpu/drm/msm/msm_gem.c
+++ b/drivers/gpu/drm/msm/msm_gem.c
@ -1096,6 +1096,20 @@ int msm_gem_new_handle(struct drm_device *dev, struct drm_file *file,
 	return ret;
 }

+static enum drm_gem_object_status msm_gem_status(struct drm_gem_object *obj)
+{
+	struct msm_gem_object *msm_obj = to_msm_bo(obj);
+	enum drm_gem_object_status status = 0;
+
+	if (msm_obj->pages)
+		status |= DRM_GEM_OBJECT_RESIDENT;
+
+	if (msm_obj->madv == MSM_MADV_DONTNEED)
+		status |= DRM_GEM_OBJECT_PURGEABLE;
+
+	return status;
+}
+
 static const struct vm_operations_struct vm_ops = {
 	.fault = msm_gem_fault,
 	.open = drm_gem_vm_open,
@ -1110,6 +1124,7 @@ static const struct drm_gem_object_funcs msm_gem_object_funcs = {
 	.vmap = msm_gem_prime_vmap,
 	.vunmap = msm_gem_prime_vunmap,
 	.mmap = msm_gem_object_mmap,
+	.status = msm_gem_status,
 	.vm_ops = &vm_ops,
 };

--- a/drivers/gpu/drm/msm/msm_gpu.c
+++ b/drivers/gpu/drm/msm/msm_gpu.c
@ -151,8 +151,6 @@ int msm_gpu_pm_suspend(struct msm_gpu *gpu)
 void msm_gpu_show_fdinfo(struct msm_gpu *gpu, struct msm_file_private *ctx,
 			 struct drm_printer *p)
 {
-	drm_printf(p, "drm-driver:\t%s\n", gpu->dev->driver->name);
-	drm_printf(p, "drm-client-id:\t%u\n", ctx->seqno);
 	drm_printf(p, "drm-engine-gpu:\t%llu ns\n", ctx->elapsed_ns);
 	drm_printf(p, "drm-cycles-gpu:\t%llu\n", ctx->cycles);
 	drm_printf(p, "drm-maxfreq-gpu:\t%u Hz\n", gpu->fast_rate);
--- a/drivers/gpu/drm/mxsfb/lcdif_drv.c
+++ b/drivers/gpu/drm/mxsfb/lcdif_drv.c
@ -9,13 +9,16 @@
 #include <linux/dma-mapping.h>
 #include <linux/io.h>
 #include <linux/module.h>
+#include <linux/of.h>
 #include <linux/of_device.h>
+#include <linux/of_graph.h>
 #include <linux/platform_device.h>
 #include <linux/pm_runtime.h>

 #include <drm/drm_atomic_helper.h>
 #include <drm/drm_bridge.h>
 #include <drm/drm_drv.h>
+#include <drm/drm_encoder.h>
 #include <drm/drm_fbdev_dma.h>
 #include <drm/drm_gem_dma_helper.h>
 #include <drm/drm_gem_framebuffer_helper.h>
@ -38,21 +41,70 @@ static const struct drm_mode_config_helper_funcs lcdif_mode_config_helpers = {
 	.atomic_commit_tail = drm_atomic_helper_commit_tail_rpm,
 };

+static const struct drm_encoder_funcs lcdif_encoder_funcs = {
+	.destroy = drm_encoder_cleanup,
+};
+
 static int lcdif_attach_bridge(struct lcdif_drm_private *lcdif)
 {
-	struct drm_device *drm = lcdif->drm;
+	struct device *dev = lcdif->drm->dev;
+	struct device_node *ep;
 	struct drm_bridge *bridge;
 	int ret;

-	bridge = devm_drm_of_get_bridge(drm->dev, drm->dev->of_node, 0, 0);
-	if (IS_ERR(bridge))
-		return PTR_ERR(bridge);
+	for_each_endpoint_of_node(dev->of_node, ep) {
+		struct device_node *remote;
+		struct of_endpoint of_ep;
+		struct drm_encoder *encoder;

-	ret = drm_bridge_attach(&lcdif->encoder, bridge, NULL, 0);
-	if (ret)
-		return dev_err_probe(drm->dev, ret, "Failed to attach bridge\n");
+		remote = of_graph_get_remote_port_parent(ep);
+		if (!of_device_is_available(remote)) {
+			of_node_put(remote);
+			continue;
+		}
+		of_node_put(remote);

-	lcdif->bridge = bridge;
+		ret = of_graph_parse_endpoint(ep, &of_ep);
+		if (ret < 0) {
+			dev_err(dev, "Failed to parse endpoint %pOF\n", ep);
+			of_node_put(ep);
+			return ret;
+		}
+
+		bridge = devm_drm_of_get_bridge(dev, dev->of_node, 0, of_ep.id);
+		if (IS_ERR(bridge)) {
+			of_node_put(ep);
+			return dev_err_probe(dev, PTR_ERR(bridge),
+					     "Failed to get bridge for endpoint%u\n",
+					     of_ep.id);
+		}
+
+		encoder = devm_kzalloc(dev, sizeof(*encoder), GFP_KERNEL);
+		if (!encoder) {
+			dev_err(dev, "Failed to allocate encoder for endpoint%u\n",
+				of_ep.id);
+			of_node_put(ep);
+			return -ENOMEM;
+		}
+
+		encoder->possible_crtcs = drm_crtc_mask(&lcdif->crtc);
+		ret = drm_encoder_init(lcdif->drm, encoder, &lcdif_encoder_funcs,
+				       DRM_MODE_ENCODER_NONE, NULL);
+		if (ret) {
+			dev_err(dev, "Failed to initialize encoder for endpoint%u: %d\n",
+				of_ep.id, ret);
+			of_node_put(ep);
+			return ret;
+		}
+
+		ret = drm_bridge_attach(encoder, bridge, NULL, 0);
+		if (ret) {
+			of_node_put(ep);
+			return dev_err_probe(dev, ret,
+					     "Failed to attach bridge for endpoint%u\n",
+					     of_ep.id);
+		}
+	}

 	return 0;
 }
@ -199,6 +251,7 @@ static const struct drm_driver lcdif_driver = {

 static const struct of_device_id lcdif_dt_ids[] = {
 	{ .compatible = "fsl,imx8mp-lcdif" },
+	{ .compatible = "fsl,imx93-lcdif" },
 	{ /* sentinel */ }
 };
 MODULE_DEVICE_TABLE(of, lcdif_dt_ids);
--- a/drivers/gpu/drm/mxsfb/lcdif_drv.h
+++ b/drivers/gpu/drm/mxsfb/lcdif_drv.h
@ -11,7 +11,6 @@
 #include <drm/drm_bridge.h>
 #include <drm/drm_crtc.h>
 #include <drm/drm_device.h>
-#include <drm/drm_encoder.h>
 #include <drm/drm_plane.h>

 struct clk;
@ -30,8 +29,6 @@ struct lcdif_drm_private {
 		/* i.MXRT does support overlay planes, add them here. */
 	} planes;
 	struct drm_crtc			crtc;
-	struct drm_encoder		encoder;
-	struct drm_bridge		*bridge;
 };

 static inline struct lcdif_drm_private *
--- a/drivers/gpu/drm/mxsfb/lcdif_kms.c
+++ b/drivers/gpu/drm/mxsfb/lcdif_kms.c
@ -17,6 +17,7 @@
 #include <drm/drm_atomic_helper.h>
 #include <drm/drm_bridge.h>
 #include <drm/drm_color_mgmt.h>
+#include <drm/drm_connector.h>
 #include <drm/drm_crtc.h>
 #include <drm/drm_encoder.h>
 #include <drm/drm_fb_dma_helper.h>
@ -30,6 +31,18 @@
 #include "lcdif_drv.h"
 #include "lcdif_regs.h"

+struct lcdif_crtc_state {
+	struct drm_crtc_state	base;	/* always be the first member */
+	u32			bus_format;
+	u32			bus_flags;
+};
+
+static inline struct lcdif_crtc_state *
+to_lcdif_crtc_state(struct drm_crtc_state *s)
+{
+	return container_of(s, struct lcdif_crtc_state, base);
+}
+
 /* -----------------------------------------------------------------------------
 * CRTC
 */
@ -385,48 +398,108 @@ static void lcdif_reset_block(struct lcdif_drm_private *lcdif)
 	readl(lcdif->base + LCDC_V8_CTRL);
 }

-static void lcdif_crtc_mode_set_nofb(struct lcdif_drm_private *lcdif,
-				     struct drm_plane_state *plane_state,
-				     struct drm_bridge_state *bridge_state,
-				     const u32 bus_format)
+static void lcdif_crtc_mode_set_nofb(struct drm_crtc_state *crtc_state,
+				     struct drm_plane_state *plane_state)
 {
-	struct drm_device *drm = lcdif->crtc.dev;
-	struct drm_display_mode *m = &lcdif->crtc.state->adjusted_mode;
-	u32 bus_flags = 0;
-
-	if (lcdif->bridge && lcdif->bridge->timings)
-		bus_flags = lcdif->bridge->timings->input_bus_flags;
-	else if (bridge_state)
-		bus_flags = bridge_state->input_bus_cfg.flags;
+	struct lcdif_crtc_state *lcdif_crtc_state = to_lcdif_crtc_state(crtc_state);
+	struct drm_device *drm = crtc_state->crtc->dev;
+	struct lcdif_drm_private *lcdif = to_lcdif_drm_private(drm);
+	struct drm_display_mode *m = &crtc_state->adjusted_mode;

 	DRM_DEV_DEBUG_DRIVER(drm->dev, "Pixel clock: %dkHz (actual: %dkHz)\n",
 			     m->crtc_clock,
 			     (int)(clk_get_rate(lcdif->clk) / 1000));
 	DRM_DEV_DEBUG_DRIVER(drm->dev, "Bridge bus_flags: 0x%08X\n",
-			     bus_flags);
+			     lcdif_crtc_state->bus_flags);
 	DRM_DEV_DEBUG_DRIVER(drm->dev, "Mode flags: 0x%08X\n", m->flags);

 	/* Mandatory eLCDIF reset as per the Reference Manual */
 	lcdif_reset_block(lcdif);

-	lcdif_set_formats(lcdif, plane_state, bus_format);
+	lcdif_set_formats(lcdif, plane_state, lcdif_crtc_state->bus_format);

-	lcdif_set_mode(lcdif, bus_flags);
+	lcdif_set_mode(lcdif, lcdif_crtc_state->bus_flags);
 }

 static int lcdif_crtc_atomic_check(struct drm_crtc *crtc,
 				   struct drm_atomic_state *state)
 {
+	struct drm_device *drm = crtc->dev;
 	struct drm_crtc_state *crtc_state = drm_atomic_get_new_crtc_state(state,
 									  crtc);
+	struct lcdif_crtc_state *lcdif_crtc_state = to_lcdif_crtc_state(crtc_state);
 	bool has_primary = crtc_state->plane_mask &
 			   drm_plane_mask(crtc->primary);
+	struct drm_connector_state *connector_state;
+	struct drm_connector *connector;
+	struct drm_encoder *encoder;
+	struct drm_bridge_state *bridge_state;
+	struct drm_bridge *bridge;
+	u32 bus_format, bus_flags;
+	bool format_set = false, flags_set = false;
+	int ret, i;

 	/* The primary plane has to be enabled when the CRTC is active. */
 	if (crtc_state->active && !has_primary)
 		return -EINVAL;

-	return drm_atomic_add_affected_planes(state, crtc);
+	ret = drm_atomic_add_affected_planes(state, crtc);
+	if (ret)
+		return ret;
+
+	/* Try to find consistent bus format and flags across first bridges. */
+	for_each_new_connector_in_state(state, connector, connector_state, i) {
+		if (!connector_state->crtc)
+			continue;
+
+		encoder = connector_state->best_encoder;
+
+		bridge = drm_bridge_chain_get_first_bridge(encoder);
+		if (!bridge)
+			continue;
+
+		bridge_state = drm_atomic_get_new_bridge_state(state, bridge);
+		if (!bridge_state)
+			bus_format = MEDIA_BUS_FMT_FIXED;
+		else
+			bus_format = bridge_state->input_bus_cfg.format;
+
+		if (bus_format == MEDIA_BUS_FMT_FIXED) {
+			dev_warn(drm->dev,
+				 "[ENCODER:%d:%s]'s bridge does not provide bus format, assuming MEDIA_BUS_FMT_RGB888_1X24.\n"
+				 "Please fix bridge driver by handling atomic_get_input_bus_fmts.\n",
+				 encoder->base.id, encoder->name);
+			bus_format = MEDIA_BUS_FMT_RGB888_1X24;
+		} else if (!bus_format) {
+			/* If all else fails, default to RGB888_1X24 */
+			bus_format = MEDIA_BUS_FMT_RGB888_1X24;
+		}
+
+		if (!format_set) {
+			lcdif_crtc_state->bus_format = bus_format;
+			format_set = true;
+		} else if (lcdif_crtc_state->bus_format != bus_format) {
+			DRM_DEV_DEBUG_DRIVER(drm->dev, "inconsistent bus format\n");
+			return -EINVAL;
+		}
+
+		if (bridge->timings)
+			bus_flags = bridge->timings->input_bus_flags;
+		else if (bridge_state)
+			bus_flags = bridge_state->input_bus_cfg.flags;
+		else
+			bus_flags = 0;
+
+		if (!flags_set) {
+			lcdif_crtc_state->bus_flags = bus_flags;
+			flags_set = true;
+		} else if (lcdif_crtc_state->bus_flags != bus_flags) {
+			DRM_DEV_DEBUG_DRIVER(drm->dev, "inconsistent bus flags\n");
+			return -EINVAL;
+		}
+	}
+
+	return 0;
 }

 static void lcdif_crtc_atomic_flush(struct drm_crtc *crtc,
@ -458,41 +531,18 @@ static void lcdif_crtc_atomic_enable(struct drm_crtc *crtc,
 				     struct drm_atomic_state *state)
 {
 	struct lcdif_drm_private *lcdif = to_lcdif_drm_private(crtc->dev);
+	struct drm_crtc_state *new_cstate = drm_atomic_get_new_crtc_state(state, crtc);
 	struct drm_plane_state *new_pstate = drm_atomic_get_new_plane_state(state,
 									    crtc->primary);
 	struct drm_display_mode *m = &lcdif->crtc.state->adjusted_mode;
-	struct drm_bridge_state *bridge_state = NULL;
 	struct drm_device *drm = lcdif->drm;
-	u32 bus_format = 0;
 	dma_addr_t paddr;

-	/* If there is a bridge attached to the LCDIF, use its bus format */
-	if (lcdif->bridge) {
-		bridge_state =
-			drm_atomic_get_new_bridge_state(state,
-							lcdif->bridge);
-		if (!bridge_state)
-			bus_format = MEDIA_BUS_FMT_FIXED;
-		else
-			bus_format = bridge_state->input_bus_cfg.format;
-
-		if (bus_format == MEDIA_BUS_FMT_FIXED) {
-			dev_warn_once(drm->dev,
-				      "Bridge does not provide bus format, assuming MEDIA_BUS_FMT_RGB888_1X24.\n"
-				      "Please fix bridge driver by handling atomic_get_input_bus_fmts.\n");
-			bus_format = MEDIA_BUS_FMT_RGB888_1X24;
-		}
-	}
-
-	/* If all else fails, default to RGB888_1X24 */
-	if (!bus_format)
-		bus_format = MEDIA_BUS_FMT_RGB888_1X24;
-
 	clk_set_rate(lcdif->clk, m->crtc_clock * 1000);

 	pm_runtime_get_sync(drm->dev);

-	lcdif_crtc_mode_set_nofb(lcdif, new_pstate, bridge_state, bus_format);
+	lcdif_crtc_mode_set_nofb(new_cstate, new_pstate);

 	/* Write cur_buf as well to avoid an initial corrupt frame */
 	paddr = drm_fb_dma_get_gem_addr(new_pstate->fb, new_pstate, 0);
@ -529,6 +579,48 @@ static void lcdif_crtc_atomic_disable(struct drm_crtc *crtc,
 	pm_runtime_put_sync(drm->dev);
 }

+static void lcdif_crtc_atomic_destroy_state(struct drm_crtc *crtc,
+					    struct drm_crtc_state *state)
+{
+	__drm_atomic_helper_crtc_destroy_state(state);
+	kfree(to_lcdif_crtc_state(state));
+}
+
+static void lcdif_crtc_reset(struct drm_crtc *crtc)
+{
+	struct lcdif_crtc_state *state;
+
+	if (crtc->state)
+		lcdif_crtc_atomic_destroy_state(crtc, crtc->state);
+
+	crtc->state = NULL;
+
+	state = kzalloc(sizeof(*state), GFP_KERNEL);
+	if (state)
+		__drm_atomic_helper_crtc_reset(crtc, &state->base);
+}
+
+static struct drm_crtc_state *
+lcdif_crtc_atomic_duplicate_state(struct drm_crtc *crtc)
+{
+	struct lcdif_crtc_state *old = to_lcdif_crtc_state(crtc->state);
+	struct lcdif_crtc_state *new;
+
+	if (WARN_ON(!crtc->state))
+		return NULL;
+
+	new = kzalloc(sizeof(*new), GFP_KERNEL);
+	if (!new)
+		return NULL;
+
+	__drm_atomic_helper_crtc_duplicate_state(crtc, &new->base);
+
+	new->bus_format = old->bus_format;
+	new->bus_flags = old->bus_flags;
+
+	return &new->base;
+}
+
 static int lcdif_crtc_enable_vblank(struct drm_crtc *crtc)
 {
 	struct lcdif_drm_private *lcdif = to_lcdif_drm_private(crtc->dev);
@ -557,24 +649,16 @@ static const struct drm_crtc_helper_funcs lcdif_crtc_helper_funcs = {
 };

 static const struct drm_crtc_funcs lcdif_crtc_funcs = {
-	.reset = drm_atomic_helper_crtc_reset,
+	.reset = lcdif_crtc_reset,
 	.destroy = drm_crtc_cleanup,
 	.set_config = drm_atomic_helper_set_config,
 	.page_flip = drm_atomic_helper_page_flip,
-	.atomic_duplicate_state = drm_atomic_helper_crtc_duplicate_state,
-	.atomic_destroy_state = drm_atomic_helper_crtc_destroy_state,
+	.atomic_duplicate_state = lcdif_crtc_atomic_duplicate_state,
+	.atomic_destroy_state = lcdif_crtc_atomic_destroy_state,
 	.enable_vblank = lcdif_crtc_enable_vblank,
 	.disable_vblank = lcdif_crtc_disable_vblank,
 };

-/* -----------------------------------------------------------------------------
- * Encoder
- */
-
-static const struct drm_encoder_funcs lcdif_encoder_funcs = {
-	.destroy = drm_encoder_cleanup,
-};
-
 /* -----------------------------------------------------------------------------
 * Planes
 */
@ -667,7 +751,6 @@ int lcdif_kms_init(struct lcdif_drm_private *lcdif)
 					BIT(DRM_COLOR_YCBCR_BT2020);
 	const u32 supported_ranges = BIT(DRM_COLOR_YCBCR_LIMITED_RANGE) |
 				     BIT(DRM_COLOR_YCBCR_FULL_RANGE);
-	struct drm_encoder *encoder = &lcdif->encoder;
 	struct drm_crtc *crtc = &lcdif->crtc;
 	int ret;

@ -691,13 +774,7 @@ int lcdif_kms_init(struct lcdif_drm_private *lcdif)
 		return ret;

 	drm_crtc_helper_add(crtc, &lcdif_crtc_helper_funcs);
-	ret = drm_crtc_init_with_planes(lcdif->drm, crtc,
-					&lcdif->planes.primary, NULL,
-					&lcdif_crtc_funcs, NULL);
-	if (ret)
-		return ret;
-
-	encoder->possible_crtcs = drm_crtc_mask(crtc);
-	return drm_encoder_init(lcdif->drm, encoder, &lcdif_encoder_funcs,
-				DRM_MODE_ENCODER_NONE, NULL);
+	return drm_crtc_init_with_planes(lcdif->drm, crtc,
+					 &lcdif->planes.primary, NULL,
+					 &lcdif_crtc_funcs, NULL);
 }
--- a/drivers/gpu/drm/omapdrm/Kconfig
+++ b/drivers/gpu/drm/omapdrm/Kconfig
@ -4,6 +4,7 @@ config DRM_OMAP
 	depends on DRM && OF
 	depends on ARCH_OMAP2PLUS
 	select DRM_KMS_HELPER
+	select FB_SYS_HELPERS if DRM_FBDEV_EMULATION
 	select VIDEOMODE_HELPERS
 	select HDMI
 	default n
--- a/drivers/gpu/drm/omapdrm/omap_fbdev.c
+++ b/drivers/gpu/drm/omapdrm/omap_fbdev.c
@ -4,6 +4,8 @@
 * Author: Rob Clark <rob@ti.com>
 */

+#include <linux/fb.h>
+
 #include <drm/drm_drv.h>
 #include <drm/drm_crtc_helper.h>
 #include <drm/drm_fb_helper.h>
@ -95,20 +97,13 @@ static void omap_fbdev_fb_destroy(struct fb_info *info)

 static const struct fb_ops omap_fb_ops = {
 	.owner = THIS_MODULE,
-
+	FB_DEFAULT_SYS_OPS,
 	.fb_check_var	= drm_fb_helper_check_var,
 	.fb_set_par	= drm_fb_helper_set_par,
 	.fb_setcmap	= drm_fb_helper_setcmap,
 	.fb_blank	= drm_fb_helper_blank,
 	.fb_pan_display = omap_fbdev_pan_display,
 	.fb_ioctl	= drm_fb_helper_ioctl,
-
-	.fb_read = drm_fb_helper_sys_read,
-	.fb_write = drm_fb_helper_sys_write,
-	.fb_fillrect = drm_fb_helper_sys_fillrect,
-	.fb_copyarea = drm_fb_helper_sys_copyarea,
-	.fb_imageblit = drm_fb_helper_sys_imageblit,
-
 	.fb_destroy = omap_fbdev_fb_destroy,
 };

--- a/drivers/gpu/drm/panel/panel-edp.c
+++ b/drivers/gpu/drm/panel/panel-edp.c
@ -903,7 +903,7 @@ err_finished_ddc_init:
 	return err;
 }

-static int panel_edp_remove(struct device *dev)
+static void panel_edp_remove(struct device *dev)
 {
 	struct panel_edp *panel = dev_get_drvdata(dev);

@ -918,8 +918,6 @@ static int panel_edp_remove(struct device *dev)

 	kfree(panel->edid);
 	panel->edid = NULL;
-
-	return 0;
 }

 static void panel_edp_shutdown(struct device *dev)
@ -1934,9 +1932,9 @@ static int panel_edp_platform_probe(struct platform_device *pdev)
 	return panel_edp_probe(&pdev->dev, id->data, NULL);
 }

-static int panel_edp_platform_remove(struct platform_device *pdev)
+static void panel_edp_platform_remove(struct platform_device *pdev)
 {
-	return panel_edp_remove(&pdev->dev);
+	panel_edp_remove(&pdev->dev);
 }

 static void panel_edp_platform_shutdown(struct platform_device *pdev)
@ -1957,7 +1955,7 @@ static struct platform_driver panel_edp_platform_driver = {
 		.pm = &panel_edp_pm_ops,
 	},
 	.probe = panel_edp_platform_probe,
-	.remove = panel_edp_platform_remove,
+	.remove_new = panel_edp_platform_remove,
 	.shutdown = panel_edp_platform_shutdown,
 };

--- a/drivers/gpu/drm/panel/panel-olimex-lcd-olinuxino.c
+++ b/drivers/gpu/drm/panel/panel-olimex-lcd-olinuxino.c
@ -308,7 +308,7 @@ static struct i2c_driver lcd_olinuxino_driver = {
 		.name = "lcd_olinuxino",
 		.of_match_table = lcd_olinuxino_of_ids,
 	},
-	.probe_new = lcd_olinuxino_probe,
+	.probe = lcd_olinuxino_probe,
 	.remove = lcd_olinuxino_remove,
 };

--- a/drivers/gpu/drm/panel/panel-raspberrypi-touchscreen.c
+++ b/drivers/gpu/drm/panel/panel-raspberrypi-touchscreen.c
@ -489,7 +489,7 @@ static struct i2c_driver rpi_touchscreen_driver = {
 		.name = "rpi_touchscreen",
 		.of_match_table = rpi_touchscreen_of_ids,
 	},
-	.probe_new = rpi_touchscreen_probe,
+	.probe = rpi_touchscreen_probe,
 	.remove = rpi_touchscreen_remove,
 };

--- a/drivers/gpu/drm/panel/panel-simple.c
+++ b/drivers/gpu/drm/panel/panel-simple.c
@ -759,8 +759,8 @@ static const struct panel_desc ampire_am_480272h3tmqw_t01h = {
 	.num_modes = 1,
 	.bpc = 8,
 	.size = {
-		.width = 105,
-		.height = 67,
+		.width = 99,
+		.height = 58,
 	},
 	.bus_format = MEDIA_BUS_FMT_RGB888_1X24,
 };
@ -778,6 +778,36 @@ static const struct drm_display_mode ampire_am800480r3tmqwa1h_mode = {
 	.flags = DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC,
 };

+static const struct display_timing ampire_am_800480l1tmqw_t00h_timing = {
+	.pixelclock = { 29930000, 33260000, 36590000 },
+	.hactive = { 800, 800, 800 },
+	.hfront_porch = { 1, 40, 168 },
+	.hback_porch = { 88, 88, 88 },
+	.hsync_len = { 1, 128, 128 },
+	.vactive = { 480, 480, 480 },
+	.vfront_porch = { 1, 35, 37 },
+	.vback_porch = { 8, 8, 8 },
+	.vsync_len = { 1, 2, 2 },
+	.flags = DISPLAY_FLAGS_HSYNC_LOW | DISPLAY_FLAGS_VSYNC_LOW |
+		 DISPLAY_FLAGS_DE_HIGH | DISPLAY_FLAGS_PIXDATA_POSEDGE |
+		 DISPLAY_FLAGS_SYNC_POSEDGE,
+};
+
+static const struct panel_desc ampire_am_800480l1tmqw_t00h = {
+	.timings = &ampire_am_800480l1tmqw_t00h_timing,
+	.num_timings = 1,
+	.bpc = 8,
+	.size = {
+		.width = 111,
+		.height = 67,
+	},
+	.bus_format = MEDIA_BUS_FMT_RGB888_1X24,
+	.bus_flags = DRM_BUS_FLAG_DE_HIGH |
+		     DRM_BUS_FLAG_PIXDATA_SAMPLE_NEGEDGE |
+		     DRM_BUS_FLAG_SYNC_SAMPLE_NEGEDGE,
+	.connector_type = DRM_MODE_CONNECTOR_DPI,
+};
+
 static const struct panel_desc ampire_am800480r3tmqwa1h = {
 	.modes = &ampire_am800480r3tmqwa1h_mode,
 	.num_modes = 1,
@ -3993,6 +4023,9 @@ static const struct of_device_id platform_of_match[] = {
 	}, {
 		.compatible = "ampire,am-480272h3tmqw-t01h",
 		.data = &ampire_am_480272h3tmqw_t01h,
+	}, {
+		.compatible = "ampire,am-800480l1tmqw-t00h",
+		.data = &ampire_am_800480l1tmqw_t00h,
 	}, {
 		.compatible = "ampire,am800480r3tmqwa1h",
 		.data = &ampire_am800480r3tmqwa1h,
--- a/drivers/gpu/drm/radeon/Kconfig
+++ b/drivers/gpu/drm/radeon/Kconfig
@ -11,6 +11,7 @@ config DRM_RADEON
 	select DRM_SUBALLOC_HELPER
        select DRM_TTM
 	select DRM_TTM_HELPER
+	select FB_IO_HELPERS if DRM_FBDEV_EMULATION
 	select SND_HDA_COMPONENT if SND_HDA_CORE
 	select POWER_SUPPLY
 	select HWMON
--- a/drivers/gpu/drm/radeon/radeon_fbdev.c
+++ b/drivers/gpu/drm/radeon/radeon_fbdev.c
@ -24,6 +24,7 @@
 *     David Airlie
 */

+#include <linux/fb.h>
 #include <linux/pci.h>
 #include <linux/pm_runtime.h>
 #include <linux/vga_switcheroo.h>
@ -190,14 +191,10 @@ static void radeon_fbdev_fb_destroy(struct fb_info *info)

 static const struct fb_ops radeon_fbdev_fb_ops = {
 	.owner = THIS_MODULE,
-	DRM_FB_HELPER_DEFAULT_OPS,
 	.fb_open = radeon_fbdev_fb_open,
 	.fb_release = radeon_fbdev_fb_release,
-	.fb_read = drm_fb_helper_cfb_read,
-	.fb_write = drm_fb_helper_cfb_write,
-	.fb_fillrect = drm_fb_helper_cfb_fillrect,
-	.fb_copyarea = drm_fb_helper_cfb_copyarea,
-	.fb_imageblit = drm_fb_helper_cfb_imageblit,
+	FB_DEFAULT_IO_OPS,
+	DRM_FB_HELPER_DEFAULT_OPS,
 	.fb_destroy = radeon_fbdev_fb_destroy,
 };

--- a/drivers/gpu/drm/solomon/ssd130x-i2c.c
+++ b/drivers/gpu/drm/solomon/ssd130x-i2c.c
@ -100,7 +100,7 @@ static struct i2c_driver ssd130x_i2c_driver = {
 		.name = DRIVER_NAME,
 		.of_match_table = ssd130x_of_match,
 	},
-	.probe_new = ssd130x_i2c_probe,
+	.probe = ssd130x_i2c_probe,
 	.remove = ssd130x_i2c_remove,
 	.shutdown = ssd130x_i2c_shutdown,
 };
--- a/drivers/gpu/drm/stm/dw_mipi_dsi-stm.c
+++ b/drivers/gpu/drm/stm/dw_mipi_dsi-stm.c
@ -444,15 +444,13 @@ static int dw_mipi_dsi_stm_probe(struct platform_device *pdev)
 	struct device *dev = &pdev->dev;
 	struct dw_mipi_dsi_stm *dsi;
 	struct clk *pclk;
-	struct resource *res;
 	int ret;

 	dsi = devm_kzalloc(dev, sizeof(*dsi), GFP_KERNEL);
 	if (!dsi)
 		return -ENOMEM;

-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	dsi->base = devm_ioremap_resource(dev, res);
+	dsi->base = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(dsi->base)) {
 		ret = PTR_ERR(dsi->base);
 		DRM_ERROR("Unable to get dsi registers %d\n", ret);
--- a/drivers/gpu/drm/stm/ltdc.c
+++ b/drivers/gpu/drm/stm/ltdc.c
@ -1145,7 +1145,7 @@ static void ltdc_crtc_disable_vblank(struct drm_crtc *crtc)

 static int ltdc_crtc_set_crc_source(struct drm_crtc *crtc, const char *source)
 {
-	struct ltdc_device *ldev = crtc_to_ltdc(crtc);
+	struct ltdc_device *ldev;
 	int ret;

 	DRM_DEBUG_DRIVER("\n");
@ -1153,6 +1153,8 @@ static int ltdc_crtc_set_crc_source(struct drm_crtc *crtc, const char *source)
 	if (!crtc)
 		return -ENODEV;

+	ldev = crtc_to_ltdc(crtc);
+
 	if (source && strcmp(source, "auto") == 0) {
 		ldev->crc_active = true;
 		ret = regmap_set_bits(ldev->regmap, LTDC_GCR, GCR_CRCEN);
--- a/drivers/gpu/drm/tegra/Kconfig
+++ b/drivers/gpu/drm/tegra/Kconfig
@ -12,6 +12,7 @@ config DRM_TEGRA
 	select DRM_KMS_HELPER
 	select DRM_MIPI_DSI
 	select DRM_PANEL
+	select FB_SYS_HELPERS if DRM_FBDEV_EMULATION
 	select TEGRA_HOST1X
 	select INTERCONNECT
 	select IOMMU_IOVA
--- a/drivers/gpu/drm/tegra/fbdev.c
+++ b/drivers/gpu/drm/tegra/fbdev.c
@ -8,6 +8,7 @@
 */

 #include <linux/console.h>
+#include <linux/fb.h>
 #include <linux/vmalloc.h>

 #include <drm/drm_drv.h>
@ -58,12 +59,9 @@ static void tegra_fbdev_fb_destroy(struct fb_info *info)

 static const struct fb_ops tegra_fb_ops = {
 	.owner = THIS_MODULE,
+	__FB_DEFAULT_SYS_OPS_RDWR,
 	DRM_FB_HELPER_DEFAULT_OPS,
-	.fb_read = drm_fb_helper_sys_read,
-	.fb_write = drm_fb_helper_sys_write,
-	.fb_fillrect = drm_fb_helper_sys_fillrect,
-	.fb_copyarea = drm_fb_helper_sys_copyarea,
-	.fb_imageblit = drm_fb_helper_sys_imageblit,
+	__FB_DEFAULT_SYS_OPS_DRAW,
 	.fb_mmap = tegra_fb_mmap,
 	.fb_destroy = tegra_fbdev_fb_destroy,
 };
--- a/drivers/gpu/drm/ttm/ttm_tt.c
+++ b/drivers/gpu/drm/ttm/ttm_tt.c
@ -137,7 +137,6 @@ static void ttm_tt_init_fields(struct ttm_tt *ttm,
 			       unsigned long extra_pages)
 {
 	ttm->num_pages = (PAGE_ALIGN(bo->base.size) >> PAGE_SHIFT) + extra_pages;
-	ttm->caching = ttm_cached;
 	ttm->page_flags = page_flags;
 	ttm->dma_address = NULL;
 	ttm->swap_storage = NULL;
--- a/drivers/video/fbdev/Kconfig
+++ b/drivers/video/fbdev/Kconfig
@ -158,6 +158,27 @@ config FB_DEFERRED_IO
 	bool
 	depends on FB

+config FB_IO_HELPERS
+	bool
+	depends on FB
+	select FB_CFB_COPYAREA
+	select FB_CFB_FILLRECT
+	select FB_CFB_IMAGEBLIT
+
+config FB_SYS_HELPERS
+	bool
+	depends on FB
+	select FB_SYS_COPYAREA
+	select FB_SYS_FILLRECT
+	select FB_SYS_FOPS
+	select FB_SYS_IMAGEBLIT
+
+config FB_SYS_HELPERS_DEFERRED
+	bool
+	depends on FB
+	select FB_DEFERRED_IO
+	select FB_SYS_HELPERS
+
 config FB_HECUBA
 	tristate
 	depends on FB
--- a/include/drm/bridge/samsung-dsim.h
+++ b/include/drm/bridge/samsung-dsim.h
@ -54,11 +54,14 @@ struct samsung_dsim_driver_data {
 	unsigned int has_freqband:1;
 	unsigned int has_clklane_stop:1;
 	unsigned int num_clks;
+	unsigned int min_freq;
 	unsigned int max_freq;
 	unsigned int wait_for_reset;
 	unsigned int num_bits_resol;
 	unsigned int pll_p_offset;
 	const unsigned int *reg_values;
+	u16 m_min;
+	u16 m_max;
 };

 struct samsung_dsim_host_ops {
@ -90,6 +93,7 @@ struct samsung_dsim {

 	u32 pll_clk_rate;
 	u32 burst_clk_rate;
+	u32 hs_clock;
 	u32 esc_clk_rate;
 	u32 lanes;
 	u32 mode_flags;
--- a/include/drm/drm_drv.h
+++ b/include/drm/drm_drv.h
@ -401,6 +401,13 @@ struct drm_driver {
 			       struct drm_device *dev, uint32_t handle,
 			       uint64_t *offset);

+	/**
+	 * @show_fdinfo:
+	 *
+	 * Print device specific fdinfo.  See Documentation/gpu/drm-usage-stats.rst.
+	 */
+	void (*show_fdinfo)(struct drm_printer *p, struct drm_file *f);
+
 	/** @major: driver major number */
 	int major;
 	/** @minor: driver minor number */
--- a/include/drm/drm_fb_helper.h
+++ b/include/drm/drm_fb_helper.h
@ -253,32 +253,11 @@ void drm_fb_helper_fill_info(struct fb_info *info,
 			     struct drm_fb_helper *fb_helper,
 			     struct drm_fb_helper_surface_size *sizes);

+void drm_fb_helper_damage_range(struct fb_info *info, off_t off, size_t len);
+void drm_fb_helper_damage_area(struct fb_info *info, u32 x, u32 y, u32 width, u32 height);
+
 void drm_fb_helper_deferred_io(struct fb_info *info, struct list_head *pagereflist);

-ssize_t drm_fb_helper_sys_read(struct fb_info *info, char __user *buf,
-			       size_t count, loff_t *ppos);
-ssize_t drm_fb_helper_sys_write(struct fb_info *info, const char __user *buf,
-				size_t count, loff_t *ppos);
-
-void drm_fb_helper_sys_fillrect(struct fb_info *info,
-				const struct fb_fillrect *rect);
-void drm_fb_helper_sys_copyarea(struct fb_info *info,
-				const struct fb_copyarea *area);
-void drm_fb_helper_sys_imageblit(struct fb_info *info,
-				 const struct fb_image *image);
-
-ssize_t drm_fb_helper_cfb_read(struct fb_info *info, char __user *buf,
-			       size_t count, loff_t *ppos);
-ssize_t drm_fb_helper_cfb_write(struct fb_info *info, const char __user *buf,
-				size_t count, loff_t *ppos);
-
-void drm_fb_helper_cfb_fillrect(struct fb_info *info,
-				const struct fb_fillrect *rect);
-void drm_fb_helper_cfb_copyarea(struct fb_info *info,
-				const struct fb_copyarea *area);
-void drm_fb_helper_cfb_imageblit(struct fb_info *info,
-				 const struct fb_image *image);
-
 void drm_fb_helper_set_suspend(struct drm_fb_helper *fb_helper, bool suspend);
 void drm_fb_helper_set_suspend_unlocked(struct drm_fb_helper *fb_helper,
 					bool suspend);
@ -394,62 +373,6 @@ static inline int drm_fb_helper_defio_init(struct drm_fb_helper *fb_helper)
 	return -ENODEV;
 }

-static inline ssize_t drm_fb_helper_sys_read(struct fb_info *info,
-					     char __user *buf, size_t count,
-					     loff_t *ppos)
-{
-	return -ENODEV;
-}
-
-static inline ssize_t drm_fb_helper_sys_write(struct fb_info *info,
-					      const char __user *buf,
-					      size_t count, loff_t *ppos)
-{
-	return -ENODEV;
-}
-
-static inline void drm_fb_helper_sys_fillrect(struct fb_info *info,
-					      const struct fb_fillrect *rect)
-{
-}
-
-static inline void drm_fb_helper_sys_copyarea(struct fb_info *info,
-					      const struct fb_copyarea *area)
-{
-}
-
-static inline void drm_fb_helper_sys_imageblit(struct fb_info *info,
-					       const struct fb_image *image)
-{
-}
-
-static inline ssize_t drm_fb_helper_cfb_read(struct fb_info *info, char __user *buf,
-					     size_t count, loff_t *ppos)
-{
-	return -ENODEV;
-}
-
-static inline ssize_t drm_fb_helper_cfb_write(struct fb_info *info, const char __user *buf,
-					      size_t count, loff_t *ppos)
-{
-	return -ENODEV;
-}
-
-static inline void drm_fb_helper_cfb_fillrect(struct fb_info *info,
-					      const struct fb_fillrect *rect)
-{
-}
-
-static inline void drm_fb_helper_cfb_copyarea(struct fb_info *info,
-					      const struct fb_copyarea *area)
-{
-}
-
-static inline void drm_fb_helper_cfb_imageblit(struct fb_info *info,
-					       const struct fb_image *image)
-{
-}
-
 static inline void drm_fb_helper_set_suspend(struct drm_fb_helper *fb_helper,
 					     bool suspend)
 {
--- a/include/drm/drm_file.h
+++ b/include/drm/drm_file.h
@ -41,6 +41,7 @@
 struct dma_fence;
 struct drm_file;
 struct drm_device;
+struct drm_printer;
 struct device;
 struct file;

@ -258,6 +259,9 @@ struct drm_file {
 	/** @pid: Process that opened this file. */
 	struct pid *pid;

+	/** @client_id: A unique id for fdinfo */
+	u64 client_id;
+
 	/** @magic: Authentication magic, see @authenticated. */
 	drm_magic_t magic;

@ -439,6 +443,34 @@ void drm_send_event_timestamp_locked(struct drm_device *dev,
 				     struct drm_pending_event *e,
 				     ktime_t timestamp);

+/**
+ * struct drm_memory_stats - GEM object stats associated
+ * @shared: Total size of GEM objects shared between processes
+ * @private: Total size of GEM objects
+ * @resident: Total size of GEM objects backing pages
+ * @purgeable: Total size of GEM objects that can be purged (resident and not active)
+ * @active: Total size of GEM objects active on one or more engines
+ *
+ * Used by drm_print_memory_stats()
+ */
+struct drm_memory_stats {
+	u64 shared;
+	u64 private;
+	u64 resident;
+	u64 purgeable;
+	u64 active;
+};
+
+enum drm_gem_object_status;
+
+void drm_print_memory_stats(struct drm_printer *p,
+			    const struct drm_memory_stats *stats,
+			    enum drm_gem_object_status supported_status,
+			    const char *region);
+
+void drm_show_memory_stats(struct drm_printer *p, struct drm_file *file);
+void drm_show_fdinfo(struct seq_file *m, struct file *f);
+
 struct file *mock_drm_getfile(struct drm_minor *minor, unsigned int flags);

 #endif /* _DRM_FILE_H_ */
--- a/include/drm/drm_gem.h
+++ b/include/drm/drm_gem.h
@ -42,6 +42,25 @@
 struct iosys_map;
 struct drm_gem_object;

+/**
+ * enum drm_gem_object_status - bitmask of object state for fdinfo reporting
+ * @DRM_GEM_OBJECT_RESIDENT: object is resident in memory (ie. not unpinned)
+ * @DRM_GEM_OBJECT_PURGEABLE: object marked as purgeable by userspace
+ *
+ * Bitmask of status used for fdinfo memory stats, see &drm_gem_object_funcs.status
+ * and drm_show_fdinfo().  Note that an object can DRM_GEM_OBJECT_PURGEABLE if
+ * it still active or not resident, in which case drm_show_fdinfo() will not
+ * account for it as purgeable.  So drivers do not need to check if the buffer
+ * is idle and resident to return this bit.  (Ie. userspace can mark a buffer
+ * as purgeable even while it is still busy on the GPU.. it does not _actually_
+ * become puregeable until it becomes idle.  The status gem object func does
+ * not need to consider this.)
+ */
+enum drm_gem_object_status {
+	DRM_GEM_OBJECT_RESIDENT  = BIT(0),
+	DRM_GEM_OBJECT_PURGEABLE = BIT(1),
+};
+
 /**
 * struct drm_gem_object_funcs - GEM object functions
 */
@ -174,6 +193,19 @@ struct drm_gem_object_funcs {
 	 */
 	int (*evict)(struct drm_gem_object *obj);

+	/**
+	 * @status:
+	 *
+	 * The optional status callback can return additional object state
+	 * which determines which stats the object is counted against.  The
+	 * callback is called under table_lock.  Racing against object status
+	 * change is "harmless", and the callback can expect to not race
+	 * against object destruction.
+	 *
+	 * Called by drm_show_memory_stats().
+	 */
+	enum drm_gem_object_status (*status)(struct drm_gem_object *obj);
+
 	/**
 	 * @vm_ops:
 	 *
--- a/include/linux/fb.h
+++ b/include/linux/fb.h
@ -538,9 +538,31 @@ extern ssize_t fb_io_read(struct fb_info *info, char __user *buf,
 extern ssize_t fb_io_write(struct fb_info *info, const char __user *buf,
 			   size_t count, loff_t *ppos);

+/*
+ * Initializes struct fb_ops for framebuffers in I/O memory.
+ */
+
+#define __FB_DEFAULT_IO_OPS_RDWR \
+	.fb_read	= fb_io_read, \
+	.fb_write	= fb_io_write
+
+#define __FB_DEFAULT_IO_OPS_DRAW \
+	.fb_fillrect	= cfb_fillrect, \
+	.fb_copyarea	= cfb_copyarea, \
+	.fb_imageblit	= cfb_imageblit
+
+#define __FB_DEFAULT_IO_OPS_MMAP \
+	.fb_mmap	= NULL // default implementation
+
+#define FB_DEFAULT_IO_OPS \
+	__FB_DEFAULT_IO_OPS_RDWR, \
+	__FB_DEFAULT_IO_OPS_DRAW, \
+	__FB_DEFAULT_IO_OPS_MMAP
+
 /*
 * Drawing operations where framebuffer is in system RAM
 */
+
 extern void sys_fillrect(struct fb_info *info, const struct fb_fillrect *rect);
 extern void sys_copyarea(struct fb_info *info, const struct fb_copyarea *area);
 extern void sys_imageblit(struct fb_info *info, const struct fb_image *image);
@ -549,6 +571,27 @@ extern ssize_t fb_sys_read(struct fb_info *info, char __user *buf,
 extern ssize_t fb_sys_write(struct fb_info *info, const char __user *buf,
 			    size_t count, loff_t *ppos);

+/*
+ * Initializes struct fb_ops for framebuffers in system memory.
+ */
+
+#define __FB_DEFAULT_SYS_OPS_RDWR \
+	.fb_read	= fb_sys_read, \
+	.fb_write	= fb_sys_write
+
+#define __FB_DEFAULT_SYS_OPS_DRAW \
+	.fb_fillrect	= sys_fillrect, \
+	.fb_copyarea	= sys_copyarea, \
+	.fb_imageblit	= sys_imageblit
+
+#define __FB_DEFAULT_SYS_OPS_MMAP \
+	.fb_mmap	= NULL // default implementation
+
+#define FB_DEFAULT_SYS_OPS \
+	__FB_DEFAULT_SYS_OPS_RDWR, \
+	__FB_DEFAULT_SYS_OPS_DRAW, \
+	__FB_DEFAULT_SYS_OPS_MMAP
+
 /* drivers/video/fbmem.c */
 extern int register_framebuffer(struct fb_info *fb_info);
 extern void unregister_framebuffer(struct fb_info *fb_info);
@ -604,6 +647,75 @@ extern void fb_deferred_io_cleanup(struct fb_info *info);
 extern int fb_deferred_io_fsync(struct file *file, loff_t start,
 				loff_t end, int datasync);

+/*
+ * Generate callbacks for deferred I/O
+ */
+
+#define __FB_GEN_DEFAULT_DEFERRED_OPS_RDWR(__prefix, __damage_range, __mode) \
+	static ssize_t __prefix ## _defio_read(struct fb_info *info, char __user *buf, \
+					       size_t count, loff_t *ppos) \
+	{ \
+		return fb_ ## __mode ## _read(info, buf, count, ppos); \
+	} \
+	static ssize_t __prefix ## _defio_write(struct fb_info *info, const char __user *buf, \
+						size_t count, loff_t *ppos) \
+	{ \
+		unsigned long offset = *ppos; \
+		ssize_t ret = fb_ ## __mode ## _write(info, buf, count, ppos); \
+		if (ret > 0) \
+			__damage_range(info, offset, ret); \
+		return ret; \
+	}
+
+#define __FB_GEN_DEFAULT_DEFERRED_OPS_DRAW(__prefix, __damage_area, __mode) \
+	static void __prefix ## _defio_fillrect(struct fb_info *info, \
+						const struct fb_fillrect *rect) \
+	{ \
+		__mode ## _fillrect(info, rect); \
+		__damage_area(info, rect->dx, rect->dy, rect->width, rect->height); \
+	} \
+	static void __prefix ## _defio_copyarea(struct fb_info *info, \
+						const struct fb_copyarea *area) \
+	{ \
+		__mode ## _copyarea(info, area); \
+		__damage_area(info, area->dx, area->dy, area->width, area->height); \
+	} \
+	static void __prefix ## _defio_imageblit(struct fb_info *info, \
+						 const struct fb_image *image) \
+	{ \
+		__mode ## _imageblit(info, image); \
+		__damage_area(info, image->dx, image->dy, image->width, image->height); \
+	}
+
+#define FB_GEN_DEFAULT_DEFERRED_IO_OPS(__prefix, __damage_range, __damage_area) \
+	__FB_GEN_DEFAULT_DEFERRED_OPS_RDWR(__prefix, __damage_range, io) \
+	__FB_GEN_DEFAULT_DEFERRED_OPS_DRAW(__prefix, __damage_area, cfb)
+
+#define FB_GEN_DEFAULT_DEFERRED_SYS_OPS(__prefix, __damage_range, __damage_area) \
+	__FB_GEN_DEFAULT_DEFERRED_OPS_RDWR(__prefix, __damage_range, sys) \
+	__FB_GEN_DEFAULT_DEFERRED_OPS_DRAW(__prefix, __damage_area, sys)
+
+/*
+ * Initializes struct fb_ops for deferred I/O.
+ */
+
+#define __FB_DEFAULT_DEFERRED_OPS_RDWR(__prefix) \
+	.fb_read	= __prefix ## _defio_read, \
+	.fb_write	= __prefix ## _defio_write
+
+#define __FB_DEFAULT_DEFERRED_OPS_DRAW(__prefix) \
+	.fb_fillrect	= __prefix ## _defio_fillrect, \
+	.fb_copyarea	= __prefix ## _defio_copyarea, \
+	.fb_imageblit	= __prefix ## _defio_imageblit
+
+#define __FB_DEFAULT_DEFERRED_OPS_MMAP(__prefix) \
+	.fb_mmap	= fb_deferred_io_mmap
+
+#define FB_DEFAULT_DEFERRED_OPS(__prefix) \
+	__FB_DEFAULT_DEFERRED_OPS_RDWR(__prefix), \
+	__FB_DEFAULT_DEFERRED_OPS_DRAW(__prefix), \
+	__FB_DEFAULT_DEFERRED_OPS_MMAP(__prefix)
+
 static inline bool fb_be_math(struct fb_info *info)
 {
 #ifdef CONFIG_FB_FOREIGN_ENDIAN