On Tue, Apr 22, 2014 at 04:09:12AM +0530, Ajay Kumar wrote:
This patch adds a simple driver to handle all the LCD and LED powerup/down routines needed to support eDP/eDP-LVDS panels supported on exynos boards.
The LCD and LED units are usually powered up via regulators, and almost on all boards, we will have a BL_EN pin to enable/ disable the backlight. Sometimes, we can have LCD_EN switches as well. The routines in this driver can be used to control panel power sequence on such boards.
Signed-off-by: Ajay Kumar ajaykumar.rs@samsung.com
Changes since V1: Added routine for post_disable, removed few unwanted headers. Refactored a lot of code.
.../devicetree/bindings/panel/exynos-dp-panel.txt | 45 ++++ drivers/gpu/drm/panel/Kconfig | 9 + drivers/gpu/drm/panel/Makefile | 1 + drivers/gpu/drm/panel/panel-exynos-dp.c | 251 ++++++++++++++++++++ 4 files changed, 306 insertions(+) create mode 100644 Documentation/devicetree/bindings/panel/exynos-dp-panel.txt create mode 100644 drivers/gpu/drm/panel/panel-exynos-dp.c
What this patch does is in no way Exynos specific. It is also not eDP specific.
This conflates panel drivers with board drivers in a strange way. Panel drivers should be for *panels*, not for a given SoC or specific outputs on that SoC.
Thierry