linux-toradex.git/drivers/video/s3c-fb.c, branch v3.4.59

video: s3c-fb: Add support EXYNOS5 FIMD

2012-03-06T11:57:14+00:00

This patch adds s3c_fb_driverdata s3c_fb_data_exynos5 for EXYNOS5
and adds extended timing control setting.

EXYNOS5 FIMD needs extended setting for video timing control.
Additional bits are added to VIDTCON2, VIDWxxADD2, VIDOSDxA and
VIDOSDxB registers in order to set timing value for lager resolution.

Also, address offset of VIDTCONx registers is changed from 0x0
to 0x20000, thus variable type should be changed to int type
to handle the address offset of VIDTCONx registers for EXYNOS5 FIMD.

Signed-off-by: Jingoo Han 
Signed-off-by: Florian Tobias Schandinat

video: s3c-fb: use devm_request_irq()

2012-02-24T00:50:07+00:00

The devm_ functions allocate memory that is released when a driver
detaches. This patch uses devm_request_irq of these functions.

Signed-off-by: Jingoo Han 
Signed-off-by: Florian Tobias Schandinat

video: s3c-fb: add video clock running at data under-flow

2012-01-28T20:58:11+00:00

This patch adds video clock running at data under-flow.
It means that the pixel clock is continuously provided
to lcd module, even when under-run occurs.

Signed-off-by: Jingoo Han 
Signed-off-by: Florian Tobias Schandinat

video: s3c-fb: add alpha value width setting

2012-01-28T20:58:09+00:00

This patch adds alpha value width setting according to
transparency value of each window format, using BLENDCON
register. When alpha value is 8 bits, BLENDCON will set
alpha value width as 8 bits.

Signed-off-by: Jingoo Han 
Signed-off-by: Florian Tobias Schandinat

video: s3c-fb: fix checkpatch error

2012-01-28T20:50:40+00:00

This patch fixes the checkpatch error listed below:

ERROR: trailing statements should be on next line

Signed-off-by: Jingoo Han 
Signed-off-by: Florian Tobias Schandinat

video: s3c-fb: Convert to devm style allocation

2012-01-28T19:56:27+00:00

Saves some code, especially useful as the code saved is mostly in the
infrequently tested error paths.

Signed-off-by: Mark Brown 
Acked-by: Jingoo Han 
Signed-off-by: Florian Tobias Schandinat

video: s3c-fb: Don't keep device runtime active when open

2012-01-03T16:00:05+00:00

Allow the controller to be runtime suspended when the screen is blanked
by not taking a runtime reference while the device is open. This allows
greater system wide power savings when used with a standard application
layer and ensures that the screen does not blank unless requested.

Signed-off-by: Mark Brown 
Acked-by: Jingoo Han 
Signed-off-by: Florian Tobias Schandinat

video: s3c-fb: Hold runtime PM references when touching registers

2012-01-03T16:00:05+00:00

Take a runtime PM reference whenever updating registers in preparation
for suspending the device when the framebuffer is blanked.

Signed-off-by: Mark Brown 
Acked-by: Jingoo Han 
Signed-off-by: Florian Tobias Schandinat

video: s3c-fb: Take a runtime PM reference when unblanked

2012-01-03T16:00:04+00:00

When the framebuffer is unblanked hold a runtime PM reference. This
prevents us powering down when userspace has left an image on the
framebuffer and prepares the way for being able to power down the hardware
when an application still has the device open.

Since we now hold a runtime PM reference whenever the display is unblanked
there is no need for the runtime power management to disable and enable
the display, and doing so would lead to runtime PM trying to recurse into
itself when called from the blanking code, so split the runtime PM into
separate functions which only deal with the clocks.  The PM core will
runtime resume the device prior to system suspend.

Signed-off-by: Mark Brown 
Acked-by: Jingoo Han 
Signed-off-by: Florian Tobias Schandinat

video: s3c-fb: Disable runtime PM in error paths from probe

2012-01-03T16:00:04+00:00

Signed-off-by: Mark Brown 
Acked-by: Jingoo Han 
Signed-off-by: Florian Tobias Schandinat