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UPSTREAM: dm: backlight: Add CONFIG_BACKLIGHT_PWM 

Add a config to select individually the driver for PWM backlights.
Manage "depends on" to be backyard compatible.

Change-Id: I2028a59567fdd1918adb53d7a2d1394f02fc7f75
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
(cherry picked from commit 08a43cfbc29224dadf1d725e26697c227bf9723a)
This commit is contained in:
Patrick Delaunay 2017-08-03 12:36:06 +02:00 committed by Kever Yang
parent b048a4dbd0
commit 55451cfe29
2 changed files with 12 additions and 3 deletions
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11
drivers/video/Kconfig
View File

@ -14,6 +14,17 @@ config DM_VIDEO
option compiles in the video uclass and routes all LCD/video access
through this.
config BACKLIGHT_PWM
bool "Generic PWM based Backlight Driver"
depends on DM_VIDEO && DM_PWM
default y
help
If you have a LCD backlight adjustable by PWM, say Y to enable
this driver.
This driver can be use with "simple-panel" and
it understands the standard device tree
(leds/backlight/pwm-backlight.txt)
config VIDEO_BPP8
bool "Support 8-bit-per-pixel displays"
depends on DM_VIDEO

4
drivers/video/Makefile
View File

@ -11,9 +11,7 @@ obj-$(CONFIG_DM_VIDEO) += backlight-uclass.o
obj-$(CONFIG_DM_VIDEO) += panel-uclass.o simple_panel.o
obj-$(CONFIG_DM_VIDEO) += video-uclass.o vidconsole-uclass.o
obj-$(CONFIG_DM_VIDEO) += video_bmp.o
ifdef CONFIG_DM_VIDEO
obj-$(CONFIG_DM_PWM) += pwm_backlight.o
endif
obj-$(CONFIG_BACKLIGHT_PWM) += pwm_backlight.o
obj-$(CONFIG_CONSOLE_NORMAL) += console_normal.o
obj-$(CONFIG_CONSOLE_ROTATION) += console_rotate.o
obj-$(CONFIG_CONSOLE_TRUETYPE) += console_truetype.o fonts/