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Fix to return a negative error code from the error handling
case instead of 0, as done elsewhere in this function.
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Acked-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Tested-by: Michal Simek <monstr@monstr.eu>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Move some of the OMAP2+ CM and System Control Module direct
register accesses into CM- and System Control
Module-specific "drivers" underneath arch/arm/mach-omap2/. This
is a prerequisite for moving this code out of arch/arm/mach-omap2/ into
drivers/.
Basic test logs are available here:
http://www.pwsan.com/omap/testlogs/cm_scm_cleanup_a_v3.13/20131019101809/
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Merge tag 'omap-for-v3.13/cm-scm-cleanup-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/cleanup
From Paul Walmsley <paul@pwsan.com> via Tony Lindgren:
Move some of the OMAP2+ CM and System Control Module direct
register accesses into CM- and System Control
Module-specific "drivers" underneath arch/arm/mach-omap2/. This
is a prerequisite for moving this code out of arch/arm/mach-omap2/ into
drivers/.
Basic test logs are available here:
http://www.pwsan.com/omap/testlogs/cm_scm_cleanup_a_v3.13/20131019101809/
* tag 'omap-for-v3.13/cm-scm-cleanup-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
ARM: OMAP3: control: add API for setting IVA bootmode
ARM: OMAP3: CM/control: move CM scratchpad save to CM driver
ARM: OMAP3: McBSP: do not access CM register directly
ARM: OMAP3: clock: add API to enable/disable autoidle for a single clock
ARM: OMAP2: CM/PM: remove direct register accesses outside CM code
+ Linux 3.12-rc4
Signed-off-by: Olof Johansson <olof@lixom.net>
I forgot to remove this during earlier cleanup patches and only checked
various builds for errors, not warnings.
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
Use SIMPLE_DEV_PM_OPS macro will initialize the member "freeze"
and "thaw" of pwm_backlight_pm_ops as below,
.freeze = suspend_fn,
.thaw = resume_fn,
then during the process of making hibernation snapshot, screen
will be blank at the moment of freezing, and then light at the
moment of thawing.
this is not the right user experience for suspending to disk.
so this patch drops freeze and thaw callback, make the LCD is
always lighting before the final shutdown.
Signed-off-by: Huayi Li <huayi.li@csr.com>
Signed-off-by: Barry Song <Baohua.Song@csr.com>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
GENMASK is used to create a contiguous bitmask([hi:lo]). It is
implemented twice in current kernel. One is in EDAC driver, the other
is in SiS/XGI FB driver. Move it to a more generic place for other
usage.
Signed-off-by: Chen, Gong <gong.chen@linux.intel.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Thomas Winischhofer <thomas@winischhofer.net>
Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Acked-by: Borislav Petkov <bp@suse.de>
Acked-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
Split adjustment of the brightness (by changing the PWM duty cycle) from
the power on sequence. This fixes an issue where the brightness can no
longer be updated once the backlight has been enabled.
Reported-by: Marc Dietrich <marvin24@gmx.de>
Signed-off-by: Thierry Reding <treding@nvidia.com>
In videomode_to_omap_video_timings, de_level is always set to HIGH
regardless of what the vm->flags says. Fix this to set it to high or low
according to vm->flags.
Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
[tomi.valkeinen@ti.com: rewrote the desc]
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Use the generic PHY API to control the DP PHY.
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Exynos Display Port can be used only for Exynos SoCs. In addition,
non-DT for EXYNOS SoCs is not supported from v3.11; thus, there is
no need to support non-DT for Exynos Display Port.
The 'include/video/exynos_dp.h' file has been used for non-DT
support and the content of file include/video/exynos_dp.h is moved
to drivers/video/exynos/exynos_dp_core.h. Thus, the 'exynos_dp.h'
file is removed. Also, 'struct exynos_dp_platdata' is removed,
because it is not used any more.
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Use the generic PHY API instead of the platform callback
for the MIPI DSIM DPHY enable/reset control.
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Acked-by: Felipe Balbi <balbi@ti.com>
Acked-by: Donghwa Lee <dh09.lee@samsung.com>
Acked-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Currently the driver assumes that the values specified in the
brightness-levels device tree property increase as they are parsed from
left to right. But boards that invert the signal between the PWM output
and the backlight will need to specify decreasing brightness-levels.
This patch removes the assumption that the last element of the array is
the maximum value, and instead searches the array for the maximum value
and uses that in the duty cycle calculation.
Signed-off-by: Mike Dunn <mikedunn@newsguy.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Backlights require a power supply to work properly. This commit adds a
regulator to power up and power down the backlight.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Make use of the new enable_gpio field and allow it to be set from DT as
well. Now that all legacy users of platform data have been converted to
initialize this field to an invalid value, it is safe to use the field
from the driver.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Follow up patches will add support for more complex means of powering
the backlight on and off such as using a regulator. To prevent calls to
the regulator API from becoming unbalanced, keep track of the enabled
state internally.
Signed-off-by: Thierry Reding <treding@nvidia.com>
In preparation for adding an optional regulator and enable GPIO to the
driver, split the power on and power off sequences into separate
functions to reduce code duplication at the multiple call sites.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Add more blank lines to increase readability. While at it, remove a
trailing blank line at the end of the file.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Introduce a new API for modules to query if a specific type of backlight
device has been registered. This is useful for some backlight device
provider module (e.g. ACPI video) to know if a native control
interface(e.g. the interface created by i915) is available and then do
things accordingly (e.g. avoid registering its own on Win8 systems).
Signed-off-by: Aaron Lu <aaron.lu@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
devm_iounmap is called automatically that's why remove it from the code
dev_set_drvdata(dev, NULL) is called by generic code
after device_release or on probe failure.
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Simplify driver probe and release function.
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
s/op/pdev/ in xilinxfb_of_probe().
No functional chagnes.
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Powerpc is a mess of implicit includes by prom.h. Add the necessary
explicit includes to drivers in preparation of prom.h cleanup.
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Acked-by: Grant Likely <grant.likely@linaro.org>
This patch adds a pci stub driver to hyper-fb. The hyperv framebuffer
driver will bind to the pci device then, so linux kernel and userspace
know there is a proper kernel driver for the device active. lspci shows
this for example:
[root@dhcp231 ~]# lspci -vs8
00:08.0 VGA compatible controller: Microsoft Corporation Hyper-V virtual
VGA (prog-if 00 [VGA controller])
Flags: bus master, fast devsel, latency 0, IRQ 11
Memory at f8000000 (32-bit, non-prefetchable) [size=64M]
Expansion ROM at <unassigned> [disabled]
Kernel driver in use: hyperv_fb
Another effect is that the xorg vesa driver will not attach to the
device and thus the Xorg server will automatically use the fbdev
driver instead.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Acked-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
There is currently a copy and paste error where the hdmi vsync timings are not
compared correctly, this patch fixes this.
Signed-off-by: Richard Röjfors <richard.rojfors@gmail.com>
[tomi.valkeinen@ti.com: fixed to apply on top of latest tree]
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
The OMAP4 HDMI encoder driver(hdmi4.c) contains timings tables, and helper
functions which can be used as is by the OMAP5/DRA7x encoder driver. Move these
to hdmi_common.c so that it's not replicated in the future.
Signed-off-by: Archit Taneja <archit@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
The hdmi4 driver has edid macros that aren't used at all. Remove them.
Signed-off-by: Archit Taneja <archit@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Replace the ti_hdmi_4xxx* notation for OMAP4 HDMI driver with hdmi4. Rename
the hdmi.c encoder driver to hdmi4.c. Rename ti_hdmi.h to hdmi.h
Signed-off-by: Archit Taneja <archit@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Add flags for the interrupts present in HDMI wrapper block, these will be used
to configure HDMI_IRQENABLE_SET/CLEAR and HDMI_IRQSTATUS registers.
Signed-off-by: Archit Taneja <archit@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Keep only OMAP4 HDMI core block related structs and enums in ti_hdmi_4xxx_ip.h,
move the rest to ti_hdmi.h. This holds all library specific data which will be
shared between OMAP4 and OMAP5/DRA7x HDMI encoder drivers.
Move the duplicate register read/write/wait_for_bit_change functions in the hdmi
library files to ti_hdmi.h
Signed-off-by: Archit Taneja <archit@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
The struct hdmi_ip_data contains information related to HDMI wrapper, PLL, PHY
and core sub-blocks. Now that each of these sub blocks has it's own struct,
hdmi_ip_data serves no purpose. The mutex lock in the struct was also never
used.
Remove this struct to make things cleaner.
Signed-off-by: Archit Taneja <archit@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
After removing wrapper, pll and phy funcs from ti_hdmi_4xxx_ip.c, we are left
with OMAP4 HDMI core functions. Use these directly in hdmi.c rather than using
hdmi_ip_ops. Rename the core functions with a 'hdmi4' suffix.
We used to have hdmi_ip_ops so that one could support HDMI within a TI SoC which
had a non-DSS display subsytem. This however never got put into use, and hence
these ops aren't useful any more.
The DT/hwmod information for hdmi doesn't split the address space according to
the required sub blocks. Keep the address offset and size information in the
driver for now. This will be removed when the driver gets the information
correctly from DT/hwmod.
Signed-off-by: Archit Taneja <archit@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
HDMI PHY is a block common to DSS in OMAP4, OMAP5 and DRA7x. Move the
existing functions from ti_hdmi_4xxx_ip.c to a separate file. These funcs are
called directly from the hdmi driver rather than hdmi_ip_ops function pointer
calls.
Add the PHY library function declarations to ti_hdmi.h. These will be shared
amongst the omap4/5 hdmi platform drivers. Remove the PHY function pointer ops
from the ti_hdmi_ip_ops struct.
The DT/hwmod information for hdmi doesn't split the address space according to
the required sub blocks. Keep the address offset and size information in the
driver for now. This will be removed when the driver gets the information
correctly from DT/hwmod.
Signed-off-by: Archit Taneja <archit@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
HDMI PLL is a block common to DSS in OMAP4, OMAP5 and DRA7x. Move the
existing PLL functions from ti_hdmi_4xxx_ip.c and hdmi.c to a separate file.
These funcs are called directly from the hdmi driver rather than hdmi_ip_ops
function pointer calls.
Add the PLL library function declarations to ti_hdmi.h. These will be shared
amongst the omap4/5 hdmi platform drivers. Remove the PLL function pointer ops
from the ti_hdmi_ip_ops struct. These will be shared amongst the omap4/5 hdmi
platform drivers and other libraries.
The DT/hwmod information for hdmi doesn't split the address space according to
the required sub blocks. Keep the address offset and size information in the
driver for now. This will be removed when the driver gets the information
correctly from DT/hwmod.
Signed-off-by: Archit Taneja <archit@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
HDMI wrapper is a block common to DSS in OMAP4, OMAP5 and DRA7x. Move the
existing functions from ti_hdmi_4xxx_ip.c to a separate file. These funcs are
called directly from the hdmi driver rather than hdmi_ip_ops funtion pointer
calls.
Add new wrapper funcs which can be used by other hdmi libraries like core, pll
and phy. Move some of the enums, structs and funcs related to the wrapper from
ti_hdmi_4xxx_ip.h to ti_hdmi.h. These will be shared amongst the omap4/5 hdmi
platform drivers and other libraries.
The old hdmi_wp_init() is removed since it didn't do anything. Timing parameters
like interlace, hsync_level and vsync_level weren't copied correctly before.
Those are copied correctly now.
The DT/hwmod information for hdmi doesn't split the address space according to
the required sub blocks. Keep the address offset and size information in the
driver for now. This will be removed when the driver gets the information
correctly from DT/hwmod.
Signed-off-by: Archit Taneja <archit@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
This is similar to the output printed by efifb.
Signed-off-by: Tom Gundersen <teg@jklm.no>
Acked-by: Stephen Warren <swarren@wwwdotorg.org>
Cc: David Herrmann <dh.herrmann@gmail.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
The data structure of_match_ptr() protects is always compiled in.
Hence of_match_ptr() is not needed.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Cc: Alexey Charkov <alchark@gmail.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
The data structure of_match_ptr() protects is always compiled in.
Hence of_match_ptr() is not needed.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Cc: Ed Spiridonov <edo.rus@gmail.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
The data structure of_match_ptr() protects is always compiled in.
Hence of_match_ptr() is not needed.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Driver core clears the driver data to NULL after device_release
or on probe failure, so just remove it from here.
Driver core change:
"device-core: Ensure drvdata = NULL when no driver is bound"
(sha1: 0998d0631001288a5974afc0b2a5f568bcdecb4d)
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Use devm_kzalloc() instead of kzalloc() in order to be free
automatically. This makes cleanup paths more simple.
Signed-off-by: Sangjung Woo <sangjung.woo@samsung.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Convert to module_platform_driver() to simplify code.
Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Convert to module_platform_driver() to simplify code.
Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Convert to module_platform_driver() to simplify code.
Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Convert to module_platform_driver() to simplify code.
Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Convert to module_platform_driver() to simplify code.
Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Convert to module_platform_driver() to simplify code.
Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Convert to module_platform_driver() to simplify code.
Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Convert to module_platform_driver() to simplify code.
Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
