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sunxi: video: Add support for external DAC enable pin

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The external DAC for VGA output might have either a power or reset
control pin that needs to be pulled up, as is the case on the
Hummingbird A31.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
This commit is contained in:
Chen-Yu Tsai
2015-01-12 18:02:11 +08:00
committed by Hans de Goede
parent 2583d5b192
commit 507e27dfc9
2 changed files with 22 additions and 0 deletions
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8
board/sunxi/Kconfig
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@@ -314,6 +314,14 @@ config VIDEO_VGA_VIA_LCD
LCD interface driving a VGA connector, such as found on the
Olimex A13 boards.
config VIDEO_VGA_EXTERNAL_DAC_EN
string "LCD panel power enable pin"
depends on VIDEO_VGA_VIA_LCD
default ""
---help---
Set the enable pin for the external VGA DAC. This takes a string in the
format understood by sunxi_name_to_gpio, e.g. PH1 for pin 1 of port H.
config VIDEO_LCD_MODE
string "LCD panel timing details"
depends on VIDEO