Rework the interrupt handler so the RX_DONE, FIFO_EMPTY interrupts are
properly detected. This prevents missing the interrupts when there are
other bits set in the INTSRC register than just RX_DONE and FIFO_EMPTY.
Signed-off-by: NSylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: NDonghwa Lee <dh09.lee@samsung.com>
Signed-off-by: NInki Dae <inki.dae@samsung.com>
Signed-off-by: NKyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: NFlorian Tobias Schandinat <FlorianSchandinat@gmx.de>

Make sure all resources are initialized before interrupt handler is
registered. Pass full platform device name to request_irq() so it
can be distinguished which device has requested an interrupt in cases
there are multiple instances in the system.

Also enable voltage regulators regardless of they have been enabled
by bootloader or not, to make sure other drivers using same regulators
don't disable them unexpectedly.
Signed-off-by: NSylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: NDonghwa Lee <dh09.lee@samsung.com>
Signed-off-by: NInki Dae <inki.dae@samsung.com>
Signed-off-by: NKyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: NFlorian Tobias Schandinat <FlorianSchandinat@gmx.de>

Use proper PM ops from struct dev_pm_ops rather than the deprecated ones.
Signed-off-by: NSylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: NDonghwa Lee <dh09.lee@samsung.com>
Signed-off-by: NInki Dae <inki.dae@samsung.com>
Signed-off-by: NKyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: NFlorian Tobias Schandinat <FlorianSchandinat@gmx.de>

Latest SuperH HDMI uses not only HDMI Core Register (HTOP0)
but also HDMI Control Register (HTOP1).
This patch adds HDMI Control Register support.
Signed-off-by: NKuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: NFlorian Tobias Schandinat <FlorianSchandinat@gmx.de>

Latest SuperH HDMI allows 32bit access only.
But the data is 8bit. So, we can keep compatibility by switching 8/32 bit access.
Signed-off-by: NKuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: NFlorian Tobias Schandinat <FlorianSchandinat@gmx.de>

Signed-off-by: NKuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: NFlorian Tobias Schandinat <FlorianSchandinat@gmx.de>

Signed-off-by: NKuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: NFlorian Tobias Schandinat <FlorianSchandinat@gmx.de>

MIPI DSI uses 1.1v regulator, so change its supply name.
Signed-off-by: NDonghwa Lee <dh09.lee@samsung.com>
Signed-off-by: NInki Dae <inki.dae@samsung.com>
Signed-off-by: NKyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: NFlorian Tobias Schandinat <FlorianSchandinat@gmx.de>

This patch uses pr_debug instead of printk to allow dynamic debugging.
Signed-off-by: NJingoo Han <jg1.han@samsung.com>
Signed-off-by: NFlorian Tobias Schandinat <FlorianSchandinat@gmx.de>

Remove unnecessary headers from the file.
Signed-off-by: NJingoo Han <jg1.han@samsung.com>
Signed-off-by: NFlorian Tobias Schandinat <FlorianSchandinat@gmx.de>

Release bridge, as done on all other paths out of the function.
Signed-off-by: NJulia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: NFlorian Tobias Schandinat <FlorianSchandinat@gmx.de>

When exynos_mipi_update_cfg() is called, mipi dsi registers were become
sw reset. So, It needs to enable interrupt again.
Signed-off-by: NDonghwa Lee <dh09.lee@samsung.com>
Signed-off-by: NInki Dae <inki.dae@samsung.com>
Signed-off-by: NKyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: NFlorian Tobias Schandinat <FlorianSchandinat@gmx.de>

This patch fixes max loop count in EQ(Channel Equalization) sequence
of link training. According to DP(displayport) specification,
the max loop count in this sequence should be 5.
Signed-off-by: NJingoo Han <jg1.han@samsung.com>
Signed-off-by: NFlorian Tobias Schandinat <FlorianSchandinat@gmx.de>

This patch replaces the code for getting an number from a
userspace buffer by a simple call to kstrou8_from_user.
This makes it easier to read and less error prone.
Signed-off-by: NPeter Huewe <peterhuewe@gmx.de>
Acked-by: NAlexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: NFlorian Tobias Schandinat <FlorianSchandinat@gmx.de>

SiS_DRAMType is const and only used by sisfb_post_300_rwtest which is
marked __devinit we can annotate SiS_DRAMType with __devinitconst and
move it into the file scope in order to not have it created on the
stack.
This patch decreases the compiled module size by about 100bytes.

And since hardcoded values are bad we use ARRAY_SIZE for determining
the size of SiS_DRAMType ;)
Signed-off-by: NPeter Huewe <peterhuewe@gmx.de>
Signed-off-by: NFlorian Tobias Schandinat <FlorianSchandinat@gmx.de>

This patch removes the unused structs SiS_SDRDRAM_TYPE and SiS_DDRDRAM_TYPE
from init.h

These are not used anywhere so we can delete them.

The SiS_DRAMType is identically defined in sis_main.c and only used
there so we can remove it here.
Signed-off-by: NPeter Huewe <peterhuewe@gmx.de>
Signed-off-by: NFlorian Tobias Schandinat <FlorianSchandinat@gmx.de>

Functions not referenced outside of a source file should be marked
static to prevent them from being exposed globally.

Quiets the sparse warnings:

warning: symbol 'mb862xx_intr' was not declared. Should it be static?
Signed-off-by: NH Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Anatolij Gustschin <agust@denx.de>
Signed-off-by: NFlorian Tobias Schandinat <FlorianSchandinat@gmx.de>

Functions not referenced outside of a source file should be marked
static to prevent them from being exposed globally.

Quiets the sparse warnings:

warning: symbol 'mb862xx_i2c_stop' was not declared. Should it be static?
Signed-off-by: NH Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Anatolij Gustschin <agust@denx.de>
Signed-off-by: NFlorian Tobias Schandinat <FlorianSchandinat@gmx.de>

Functions not referenced outside of a source file should be marked
static to prevent them from being exposed globally.

Quiets the sparse warning:

warning: symbol 'fb_deferred_io_page' was not declared. Should it be static?
Signed-off-by: NH Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Jaya Kumar <jayalk@intworks.biz>
Signed-off-by: NFlorian Tobias Schandinat <FlorianSchandinat@gmx.de>

Functions not referenced outside of a source file should be marked
static to prevent them from being exposed globally.

Quiets the sparse warnings:

warning: symbol 'ufx_handle_damage' was not declared. Should it be static?
Signed-off-by: NH Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Steve Glendinning <steve.glendinning@smsc.com>
Signed-off-by: NFlorian Tobias Schandinat <FlorianSchandinat@gmx.de>

Since s3c_fb_missing_pixclock() is called from s3c_fb_set_rgb_timing()
which is used in the suspend/resume paths it can't be marked __devinit
as this could result in it being discarded after boot.
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: NJingoo Han <jg1.han@samsung.com>
Signed-off-by: NFlorian Tobias Schandinat <FlorianSchandinat@gmx.de>

This controller not only supports higher resolutions than the K1900
but concurrent updates as well. This results in a generally higher
display speed.
Signed-off-by: NHeiko Stübner <heiko@sntech.de>
Signed-off-by: NFlorian Tobias Schandinat <FlorianSchandinat@gmx.de>

This controller only supports smaller resolutions and only serial
updates, i.e. it has to wait for an update to finish before
starting another one.
Signed-off-by: NHeiko Stübner <heiko@sntech.de>
Signed-off-by: NFlorian Tobias Schandinat <FlorianSchandinat@gmx.de>

The AUO-K190X controllers share a very similar set of commands and
can therefore also share most of the driver code.
Signed-off-by: NHeiko Stübner <heiko@sntech.de>
Signed-off-by: NFlorian Tobias Schandinat <FlorianSchandinat@gmx.de>

With this optional callback the driver is notified when the first page
is entered into the pagelist and a new deferred_io call is scheduled.

A possible use-case for this is runtime-pm. In the first_io call
	pm_runtime_get()
could be called, which starts an asynchronous runtime_resume of the
device. In the deferred_io callback a call to
	pm_runtime_barrier()
makes the sure, the device is resumed by then and a
	pm_runtime_put()
may put the device back to sleep.

Also, some SoCs may use the runtime-pm system to determine if they
are able to enter deeper idle states. Therefore it is necessary to
keep the use-count from the first written page until the conclusion
of the screen update, to prevent the system from going to sleep before
completing the pending update.

Two users of defio were using kmalloc to allocate the structure.
These allocations are changed to kzalloc, to prevent uninitialised
.first_io members in those drivers.
Signed-off-by: NHeiko Stübner <heiko@sntech.de>
Signed-off-by: NFlorian Tobias Schandinat <FlorianSchandinat@gmx.de>

Add support for LCD panel on MIPS SEAD-3 development platform.
Signed-off-by: NDouglas Leung <douglas@mips.com>
Signed-off-by: NChris Dearman <chris@mips.com>
Signed-off-by: NSteven J. Hill <sjhill@mips.com>
Signed-off-by: NFlorian Tobias Schandinat <FlorianSchandinat@gmx.de>

The exynos_mipi_dsi_set_main_disp_[hv]porch() functions take front and
back porch arguments in that order. This maps to the fb_videomode
right/lower_margin and left/upper_margin respectively. Fix the caller
accordingly.
Signed-off-by: NLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: NDonghwa Lee <dh09.lee@samsung.com>

If there's some traffic on the LCD controller pads, the BootROM has trouble with
sampling the bootmode from these pads. The BootROM usually ends in a loop.
Signed-off-by: NMarek Vasut <marek.vasut@gmail.com>
Cc: Chen Peter-B29397 <B29397@freescale.com>
Cc: Detlev Zundel <dzu@denx.de>
Cc: Fabio Estevam <festevam@gmail.com>
Cc: Li Frank-B20596 <B20596@freescale.com>
Cc: Lin Tony-B19295 <B19295@freescale.com>
Cc: Linux FBDEV <linux-fbdev@vger.kernel.org>
Cc: Sascha Hauer <s.hauer@pengutronix.de>
Cc: Shawn Guo <shawn.guo@freescale.com>
Cc: Stefano Babic <sbabic@denx.de>
Cc: Subodh Nijsure <snijsure@grid-net.com>
Cc: Tony Lin <tony.lin@freescale.com>
Acked-by: NShawn Guo <shawn.guo@linaro.org>
Acked-by: NWolfgang Denk <wd@denx.de>
Acked-by: NWolfram Sang <w.sang@pengutronix.de>
Tested-by: NWolfgang Denk <wd@denx.de>
Signed-off-by: NFlorian Tobias Schandinat <FlorianSchandinat@gmx.de>

The test tested not the most recently allocated value but a previously
allocated one.
Signed-off-by: NJulia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: NFlorian Tobias Schandinat <FlorianSchandinat@gmx.de>

There were two problems in this code: failure of the setup function should
free locally allocated resources like other nearby failures, and the test
if (&info->cmap) can never be false.  To generally clean things up, this
patch reorders the error handling code at the failed label and adds labels
so that the conditionals are not necessary.
Signed-off-by: NJulia Lawall <Julia.Lawall@lip6.fr>
Acked-by: NH Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: NRyan Mallon <rmallon@gmail.com>
Signed-off-by: NFlorian Tobias Schandinat <FlorianSchandinat@gmx.de>

The change
    commit 461cbe77
    Author: Gregory Bean <gbean@codeaurora.org>
    Date:   Wed Jul 28 10:22:13 2010 -0700

        video: msm: Fix section mismatch in mddi.c.

fixes a section mismatch between the board file and the driver's probe
function, however, it misses the additional mismatches between the
probe function and some routines it calls.  Fix these up as well.
Signed-off-by: NDavid Brown <davidb@codeaurora.org>
Signed-off-by: NFlorian Tobias Schandinat <FlorianSchandinat@gmx.de>

This patch adds analog and pll control setting. This control setting
is used for DP TX PHY block to set the values as below. It is beneficial
to improve analog characteristics.
 - TX terminal registor is 50 Ohm.
 - Reference clock of PHY is 24 MHz.
 - Power source for TX digital logic is 1.0625 V.
 - Power source for internal clock driver is 1.0625 V.
 - PLL VCO range setting is 600 uA.
 - Power down ring osc is turned off.
 - AUX terminal resistor is 50 Ohm.
 - AUX channel current is 8 mA and multiplied by 2.
 - TX channel output amplitude is 400 mV.
Signed-off-by: NJingoo Han <jg1.han@samsung.com>
Signed-off-by: NFlorian Tobias Schandinat <FlorianSchandinat@gmx.de>

The char pointer for adjust_request variable is replaced with char array
to fix possible null pointer dereference when clock recovery is failed.
Signed-off-by: NJingoo Han <jg1.han@samsung.com>
Signed-off-by: NFlorian Tobias Schandinat <FlorianSchandinat@gmx.de>

DP PLL Lock status should be checked in order to  prevent unlocked PLL.
Signed-off-by: NJingoo Han <jg1.han@samsung.com>
Signed-off-by: NFlorian Tobias Schandinat <FlorianSchandinat@gmx.de>

This patch adds runtime_get/put to suspend/resume, which should be
necessary to prevent the problem to access the fimd register
without block power on.
Signed-off-by: NJingoo Han <jg1.han@samsung.com>
Signed-off-by: NFlorian Tobias Schandinat <FlorianSchandinat@gmx.de>

Signed-off-by: NAlexander Guy <alexander.guy@guy-engineering.com>
Signed-off-by: NFlorian Tobias Schandinat <FlorianSchandinat@gmx.de>

If wait_event_interruptible_timeout returns a positive value, it means
the condition evaluated is true. Which means priv->shared->hw_running is false.
And then we will exit the loop.

This patch simplifies the logic to exit the while loop.
Signed-off-by: NAxel Lin <axel.lin@gmail.com>
Signed-off-by: NFlorian Tobias Schandinat <FlorianSchandinat@gmx.de>

For all the Samsung SoC based boards which have the platform data for
s3c-fb driver, the 'default_win' element in the platform data is removed
and the lcd panel video timing values are moved out of individual window
configuration data.
Acked-by: NJingoo Han <jg1.han@samsung.com>
Cc: Kyungmin Park <kyungmin.park@samsung.com>
Cc: JeongHyeon Kim <jhkim@insignal.co.kr>
Cc: Kukjin Kim <kgene.kim@samsung.com>
Cc: Heiko Stuebner <heiko@sntech.de>
Cc: Ben Dooks <ben-linux@fluff.org>
Cc: Kwangwoo Lee <kwangwoo.lee@gmail.com>
Cc: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: Peter Korsgaard <jacmet@sunsite.dk>
Cc: Darius Augulis <augulis.darius@gmail.com>
Cc: Maurus Cuelenaere <mcuelenaere@gmail.com>
Signed-off-by: NThomas Abraham <thomas.abraham@linaro.org>
Signed-off-by: NFlorian Tobias Schandinat <FlorianSchandinat@gmx.de>

The display controller window data should contain window configuration data
for only one type of lcd panel. So, for real6410 and mini6410 boards, split
the existing display controller window data, which contains window
configuration data for two different types of lcd panels, into two seperate
instances and register one of them depending on the type of the lcd panel
detected at runtime.

This is a prerequisite change for a subsequent commit that reorders the
platform data of display controller by moving video interface timing out
of window setup data.

Cc: Darius Augulis <augulis.darius@gmail.com>
Acked-by: NJingoo Han <jg1.han@samsung.com>
Signed-off-by: NThomas Abraham <thomas.abraham@linaro.org>
Signed-off-by: NFlorian Tobias Schandinat <FlorianSchandinat@gmx.de>