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Simplify board specific code by specifying the power_control
gpio direct in platform data.
Move registration of the GPIO to the driver so we no longer
need to duplicate this for each board.
As an intended side-effect there is no longer
any references to platform_data outside atmel_lcdc_register()
so remove it from struct atmel_lcdfb_info
The implementation assumes that GPIO=0 is the same as no power control.
This prevents us from using any GPIO=0 for power control,
but this is not considered a problem for current users.
Future DT users will not have this limitation.
This commit include a fix so we will actually power
down if requested. Previously this was hardcoded to ON.
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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The i.MX specific DI_MODE VPL ioctl already allows to query the encoder
input bus format. This patch also allows non-i.MX specific encoder drivers
to report their input bus format.
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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V4L2 pixel formats are supposed to describe video frames in memory. To
describe the pixel format on the hardware bus between display interface
and encoders, use media bus formats, which are more expressive.
This allows to get rid of the custom GBR24 and LVDS666 fourccs.
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Add empty static inline function fallbacks if backlight support
is not enabled, so that drivers using the backlight don't fail to
build.
Fixes:
In function `simple_panel_ioctl':
undefined reference to `of_backlight_find'
undefined reference to `backlight_set_brightness_default'
undefined reference to `backlight_set_brightness'
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Complex video pipelines are modelled with the of_graph bindings in
the devicetree. This patch adds a ioctl infrastructure to issue
commands to the remote endpoint of a of_graph. Currently defined
ioctls are prepare/unprepare, enable/disable and get_modes. This
is enough to control LVDS or HDMI encoder or simple panels.
A device node which contains of_graph endpoints can be registered
as a VPL entity. An entity can receive ioctls via the .ioctl callback
and also issue ioctls by calling vpl_ioctl. The core itself will never
iterate over the entire pipeline. Instead, the different VPL entities
should forward an ioctl to the next instance in the pipeline whenever
necessary.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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This adds a small backlight layer. It provides a backlight device
on which the brightness parameter can be used to adjust the brightness.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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This IP is present on the at91sam9 until the sam9g45, on the sam9x5 we use a
new IP.
This driver is based on the linux one.
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Cc: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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