Chen-Yu Tsai 936598d16e drm/sun4i: backend: Add comment explaining why registers are cleared ...

Many of the backend's layer configuration registers have undefined
default values. This poses a risk as we use regmap_update_bits in
some places, and don't overwrite the whole register.

At probe/bind time we explicitly clear all the control registers
by writing 0 to them. This patch adds a more detailed explanation
on why we're doing this.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20171014040252.9621-5-wens@csie.org

2017-10-16 09:54:01 +02:00

..

amd

Linux 4.14-rc3

2017-10-03 09:35:04 +10:00

arc

drm/arc: Use drm_gem_fb_create()

2017-09-02 14:23:06 +02:00

arm

drm/arm/mali: Use drm_gem_fb_create()

2017-08-27 19:29:46 +02:00

armada

drm/armada: Remove unused #include <drmP.h>

2017-09-29 09:35:36 +02:00

ast

Merge tag 'drm-misc-next-2017-08-16' of git://anongit.freedesktop.org/git/drm-misc into drm-next

2017-08-17 07:33:41 +10:00

atmel-hlcdc

drm/atmel-hlcdc: Use drm_gem_fb_create()

2017-08-27 19:30:15 +02:00

bochs

drm/bochs: Use the drm_driver.dumb_destroy default

2017-08-16 20:18:55 +02:00

bridge

drm/bridge/sii8620: add remote control support

2017-10-11 13:14:25 +02:00

cirrus

drm/cirrus: Use the drm_driver.dumb_destroy default

2017-08-16 20:14:22 +02:00

etnaviv

Merge branch 'etnaviv/fixes' of https://git.pengutronix.de/git/lst/linux into drm-fixes

2017-09-28 05:48:53 +10:00

exynos

Merge tag 'drm-misc-next-2017-09-20' of git://anongit.freedesktop.org/git/drm-misc into drm-next

2017-09-28 05:46:15 +10:00

fsl-dcu

drm/fsl-dcu: Use drm_gem_fb_create()

2017-10-01 17:00:20 +02:00

gma500

driver:gpu: return -ENOMEM on allocation failure.

2017-10-12 19:55:21 +02:00

hisilicon

drm/kirin: Checking for IS_ERR() instead of NULL

2017-10-12 14:09:45 -04:00

i2c

drm: i2c: tda998x: constify i2c_device_id

2017-08-22 08:33:44 +02:00

i810

drm/pci: Deprecate drm_pci_init/exit completely

2017-06-20 10:41:03 +02:00

i915

Merge tag 'drm-intel-next-2017-09-07' of git://anongit.freedesktop.org/git/drm-intel into drm-next

2017-09-28 07:12:44 +10:00

imx

Merge tag 'drm-misc-next-2017-09-20' of git://anongit.freedesktop.org/git/drm-misc into drm-next

2017-09-28 05:46:15 +10:00

lib

mm: treewide: remove GFP_TEMPORARY allocation flag

2017-09-13 18:53:16 -07:00

mediatek

drm/mediatek: hdmi: clean up drm_bridge_add call

2017-08-21 08:49:24 +05:30

meson

drm/meson: Use drm_gem_fb_create()

2017-10-01 17:01:39 +02:00

mga

Merge airlied/drm-next into drm-misc-next

2017-07-26 13:43:33 +02:00

mgag200

drm/mgag200: Use the drm_driver.dumb_destroy default

2017-08-16 20:18:22 +02:00

msm

drm/msm/mdp5: remove less than 0 comparison for unsigned value

2017-10-11 13:17:52 +02:00

mxsfb

drm/mxsfb: Use drm_gem_fb_create() and drm_gem_fb_prepare_fb()

2017-10-01 17:02:20 +02:00

nouveau

dmi: Mark all struct dmi_system_id instances const

2017-09-14 11:59:30 +02:00

omapdrm

drm/omap: work-around for omap3 display enable

2017-08-23 12:22:12 +03:00

panel

drm/panel: Add support for the Raspberry Pi 7" Touchscreen.

2017-10-06 12:10:16 -07:00

pl111

drm/pl111: Add handling of Versatile platforms

2017-09-10 23:58:42 +02:00

qxl

qxl: fix framebuffer unpinning

2017-09-25 08:35:53 +02:00

r128

drm/pci: Deprecate drm_pci_init/exit completely

2017-06-20 10:41:03 +02:00

radeon

Linux 4.14-rc3

2017-10-03 09:35:04 +10:00

rcar-du

drm/rcar-du: Use drm_gem_fb_create()

2017-10-01 17:02:53 +02:00

rockchip

drm/rockchip: add PINCTRL dependency for LVDS

2017-10-13 09:43:16 +08:00

savage

drm/pci: Deprecate drm_pci_init/exit completely

2017-06-20 10:41:03 +02:00

selftests

mm: treewide: remove GFP_TEMPORARY allocation flag

2017-09-13 18:53:16 -07:00

shmobile

drm/shmobile: Use drm_gem_fb_create()

2017-10-01 17:03:22 +02:00

sis

drm/pci: Deprecate drm_pci_init/exit completely

2017-06-20 10:41:03 +02:00

sti

drm/sti: Use drm_gem_fb_create()

2017-08-27 19:30:49 +02:00

stm

drm/stm: ltdc: remove bridge from driver internal structure

2017-10-10 11:32:48 +02:00

sun4i

drm/sun4i: backend: Add comment explaining why registers are cleared

2017-10-16 09:54:01 +02:00

tdfx

drm/pci: Deprecate drm_pci_init/exit completely

2017-06-20 10:41:03 +02:00

tegra

drm/tegra: trace: Fix path to include

2017-09-26 11:08:17 +02:00

tilcdc

drm/tilcdc: replace reference/unreference() with get/put

2017-09-26 13:12:15 +02:00

tinydrm

drm/tinydrm: Remove explicit .best_encoder assignment

2017-10-13 17:34:51 +02:00

ttm

Merge branch 'drm-next-4.15' of git://people.freedesktop.org/~agd5f/linux into drm-next

2017-09-28 08:37:02 +10:00

tve200

drm/tve200: Use drm_gem_fb_create() and drm_gem_fb_prepare_fb()

2017-10-01 17:04:36 +02:00

udl

Merge branch 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2017-09-04 12:21:28 -07:00

vc4

drm/vc4: Fix pitch setup for T-format scanout.

2017-10-13 16:40:24 -07:00

vgem

drm/vgem: switch to drm_*_get(), drm_*_put() helpers

2017-08-11 11:41:43 -04:00

via

drm/pci: Deprecate drm_pci_init/exit completely

2017-06-20 10:41:03 +02:00

virtio

Merge airlied/drm-next into drm-misc-next

2017-10-03 11:09:16 +02:00

vmwgfx

main drm pull request for 4.14 merge window

2017-09-03 17:02:26 -07:00

zte

drm/zte: Use drm_gem_fb_create()

2017-08-27 19:31:06 +02:00

ati_pcigart.c

…

drm_agpsupport.c

drm/agpsupport: Remove extra blank line

2017-09-20 09:54:19 -07:00

drm_atomic_helper.c

drm/atomic-helper: Fix reference to drm_crtc_send_vblank_event()

2017-10-13 15:41:04 +02:00

drm_atomic.c

drm/atomic: Remove unneeded null check for private objects

2017-10-06 11:05:50 +02:00

drm_auth.c

…

drm_blend.c

mm: treewide: remove GFP_TEMPORARY allocation flag

2017-09-13 18:53:16 -07:00

drm_bridge.c

drm/bridge: change return type of drm_bridge_add function

2017-08-21 08:51:53 +05:30

drm_bufs.c

switch compat_drm_mapbufs() to drm_ioctl_kernel()

2017-07-04 13:16:26 -04:00

drm_cache.c

…

drm_color_mgmt.c

drm: More links for gamma support helpers

2017-06-20 12:13:11 +02:00

drm_connector.c

drm: Try to document legacy DPMS uapi a bit better

2017-09-26 07:12:56 +02:00

drm_context.c

…

drm_crtc_helper_internal.h

…

drm_crtc_helper.c

drm: Replace kzalloc with kcalloc

2017-10-13 15:49:03 -04:00

drm_crtc_internal.h

drm: Handle properties in the core for atomic drivers

2017-08-08 14:45:09 +02:00

drm_crtc.c

drm/crtc: Convert setcrtc ioctl locking to interruptible.

2017-09-13 09:52:05 +02:00

drm_debugfs_crc.c

drm/atomic: Prepare drm_modeset_lock infrastructure for interruptible waiting, v2.

2017-09-13 09:50:52 +02:00

drm_debugfs.c

…

drm_dma.c

…

drm_dp_aux_dev.c

drm_dp_aux_dev: switch to read_iter/write_iter

2017-07-08 20:51:46 -04:00

drm_dp_dual_mode_helper.c

mm: treewide: remove GFP_TEMPORARY allocation flag

2017-09-13 18:53:16 -07:00

drm_dp_helper.c

drm/dp: WARN about invalid/unknown link rates and bw codes

2017-10-11 18:41:44 +03:00

drm_dp_mst_topology.c

drm/dp/mst: Sideband message transaction to power up/down nodes

2017-09-11 16:03:57 +03:00

drm_drv.c

drm: introduce drm_dev_{get/put} functions

2017-09-26 13:12:15 +02:00

drm_dumb_buffers.c

drm/dumb-buffers: Add defaults for .dumb_map_offset and .dumb_destroy

2017-07-29 13:51:44 +02:00

drm_edid_load.c

drm: add backwards compatibility support for drm_kms_helper.edid_firmware

2017-09-19 18:11:45 +03:00

drm_edid.c

drm: handle override and firmware EDID at drm_do_get_edid() level

2017-09-19 17:49:25 +03:00

drm_encoder_slave.c

…

drm_encoder.c

…

drm_fb_cma_helper.c

drm/fb-cma-helper: Remove unused functions

2017-10-01 17:05:39 +02:00

drm_fb_helper.c

drm: Replace kzalloc with kcalloc

2017-10-13 15:49:03 -04:00

drm_file.c

drm: Document device unplug infrastructure

2017-08-11 10:48:03 +02:00

drm_flip_work.c

…

drm_fourcc.c

…

drm_framebuffer.c

Merge airlied/drm-next into drm-misc-next

2017-07-26 13:43:33 +02:00

drm_gem_cma_helper.c

drm/gem-cma-helper: Remove drm_gem_cma_dumb_map_offset()

2017-08-16 20:21:24 +02:00

drm_gem_framebuffer_helper.c

drm/gem-fb-helper: Improve documentation

2017-10-08 15:02:51 +02:00

drm_gem.c

drm: fix typo in drm_gem_get_pages() comment

2017-10-04 18:04:28 +02:00

drm_global.c

…

drm_hashtab.c

…

drm_info.c

…

drm_internal.h

drm/syncobj: Add a signal ioctl (v3)

2017-08-29 10:16:25 +10:00

drm_ioc32.c

Merge airlied/drm-next into drm-misc-next

2017-07-26 13:43:33 +02:00

drm_ioctl.c

drm/syncobj: Add a signal ioctl (v3)

2017-08-29 10:16:25 +10:00

drm_irq.c

…

drm_kms_helper_common.c

drm: add backwards compatibility support for drm_kms_helper.edid_firmware

2017-09-19 18:11:45 +03:00

drm_legacy.h

switch compat_drm_mapbufs() to drm_ioctl_kernel()

2017-07-04 13:16:26 -04:00

drm_lock.c

…

drm_memory.c

…

drm_mipi_dsi.c

drm: Convert to using %pOF instead of full_name

2017-07-26 13:45:06 +02:00

drm_mm.c

lib/interval_tree: fast overlap detection

2017-09-08 18:26:49 -07:00

drm_mode_config.c

drm: Create a format/modifier blob

2017-08-01 17:50:06 +01:00

drm_mode_object.c

drm: Make __drm_object_property_get_value() static

2017-09-11 15:53:33 +03:00

drm_modes.c

drm/modes: Fix drm_mode_is_420_only() comment

2017-07-31 14:23:30 +02:00

drm_modeset_helper.c

drm: Plumb modifiers through plane init

2017-08-01 17:50:06 +01:00

drm_modeset_lock.c

drm/atomic: Prepare drm_modeset_lock infrastructure for interruptible waiting, v2.

2017-09-13 09:50:52 +02:00

drm_of.c

drm/drm_of: Move drm_of_panel_bridge_remove_function into header.

2017-10-13 16:59:36 +02:00

drm_panel.c

…

drm_pci.c

drm/core: clean up references to drm_dev_unref()

2017-09-27 10:53:12 +02:00

drm_plane_helper.c

drm: Replace kzalloc with kcalloc

2017-10-13 15:49:03 -04:00

drm_plane.c

Merge tag 'drm-misc-next-2017-09-20' of git://anongit.freedesktop.org/git/drm-misc into drm-next

2017-09-28 05:46:15 +10:00

drm_prime.c

drm/core: clean up references to drm_dev_unref()

2017-09-27 10:53:12 +02:00

drm_print.c

…

drm_probe_helper.c

drm: handle override and firmware EDID at drm_do_get_edid() level

2017-09-19 17:49:25 +03:00

drm_property.c

drm: rename, adjust and export drm_atomic_replace_property_blob

2017-07-14 15:53:06 +02:00

drm_rect.c

…

drm_scatter.c

…

drm_scdc_helper.c

Merge tag 'drm-misc-next-2017-09-20' of git://anongit.freedesktop.org/git/drm-misc into drm-next

2017-09-28 05:46:15 +10:00

drm_simple_kms_helper.c

drm: Plumb modifiers through plane init

2017-08-01 17:50:06 +01:00

drm_syncobj.c

drm: Add missing __user annotation to drm_syncobj_array_find()

2017-10-13 16:01:06 +03:00

drm_sysfs.c

…

drm_trace_points.c

…

drm_trace.h

drm: Use correct path to trace include

2017-09-05 11:11:18 +02:00

drm_vblank.c

drm/vblank: Fix flip event vblank count

2017-10-12 17:34:28 +03:00

drm_vm.c

Merge branch 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2017-09-04 12:21:28 -07:00

drm_vma_manager.c

lib/interval_tree: fast overlap detection

2017-09-08 18:26:49 -07:00

Kconfig

Merge branch 'drm-next-4.15' of git://people.freedesktop.org/~agd5f/linux into drm-next

2017-09-28 08:37:02 +10:00

Makefile

Merge branch 'drm-next-4.15' of git://people.freedesktop.org/~agd5f/linux into drm-next

2017-09-28 08:37:02 +10:00