DC based PWM backlight is found on some T20 and T30 devices
(HTC One X). This backlight is controlled by Tegra DC and
is adjustable by the DC PM0 or PM1 signal.
Tested-by: Andreas Westman Dorcsak <hedmoo@yahoo.com> # HTC One X T30
Tested-by: Svyatoslav Ryhel <clamor95@gmail.com> # HTC One X T30
Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Adds support for both DSI outputs found on Tegra. Only very
minimal functionality is implemented, so advanced features
like ganged mode won't work. Driver is heavily based on
mainline Tegra DSI and re-uses much of its features.
Only T30 is supported for now but T20 support can be added
if any supported devices will be found.
Driver is wrapped as panel driver since Tegra DC driver supports
only panel drivers calls.
Tested-by: Andreas Westman Dorcsak <hedmoo@yahoo.com> # ASUS TF600T T30
Tested-by: Svyatoslav Ryhel <clamor95@gmail.com> # HTC One X T30
Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com>
Internal video devices like DSI and HDMI controllers
require sending commands into DC register field.
To make this available, lets create platform data,
which is restricted to pass DC regmap only to
pre-defined devices.
Tested-by: Andreas Westman Dorcsak <hedmoo@yahoo.com> # ASUS TF T30
Tested-by: Nicolas Chauvet <kwizart@gmail.com> # Paz00
Tested-by: Robert Eckelmann <longnoserob@gmail.com> # ASUS TF101 T20
Tested-by: Svyatoslav Ryhel <clamor95@gmail.com> # HTC One X T30
Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com>
Tegra DC driver does not call panel_set_backlight, which can
result in absence of backlight on device. Fix this by calling
panel_set_backlight with BACKLIGHT_DEFAULT just after
panel_enable_backlight.
Tested-by: Robert Eckelmann <longnoserob@gmail.com> # ASUS TF101 T20
Tested-by: Nicolas Chauvet <kwizart@gmail.com> # Paz00
Tested-by: Andreas Westman Dorcsak <hedmoo@yahoo.com> # ASUS TF T30
Tested-by: Svyatoslav Ryhel <clamor95@gmail.com> # LG P895 T30
Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com>
Unlike 90 and 270 degree rotation, 180 degree rotation is more
common and does not require scaling. Implement it for correct
grouper support.
Tested-by: Andreas Westman Dorcsak <hedmoo@yahoo.com> # Google Nexus 7 2012
Tested-by: Svyatoslav Ryhel <clamor95@gmail.com> # Google Nexus 7 2012
Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com>
Check if panel driver has display timings and get those.
If panel driver does not pass timing, try to find timing
under rgb node for backwards compatibility.
Tested-by: Robert Eckelmann <longnoserob@gmail.com> # ASUS TF101 T20
Tested-by: Nicolas Chauvet <kwizart@gmail.com> # Paz00
Tested-by: Andreas Westman Dorcsak <hedmoo@yahoo.com> # ASUS TF T30
Tested-by: Svyatoslav Ryhel <clamor95@gmail.com> # LG P895 T30
Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com>
DISP1 clock may use PLLP, PLLC and PLLD as parents.
Instead of hardcoding, lets pass clock and its
parent from device tree. Default parent is PLLP.
Tested-by: Robert Eckelmann <longnoserob@gmail.com> # ASUS TF101 T20
Tested-by: Nicolas Chauvet <kwizart@gmail.com> # Paz00
Tested-by: Andreas Westman Dorcsak <hedmoo@yahoo.com> # ASUS TF T30
Tested-by: Svyatoslav Ryhel <clamor95@gmail.com> # HTC One X T30
Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com>
Move tegra dc driver to tegra20 directory and also mention
T30 in description of the driver's config option.
Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com>
[agust: add commit description]
Signed-off-by: Anatolij Gustschin <agust@denx.de>
