summaryrefslogtreecommitdiffstats
path: root/drivers/media/platform/Makefile
diff options
context:
space:
mode:
authorHans Verkuil <hans.verkuil@cisco.com>2017-06-28 10:14:28 +0200
committerMauro Carvalho Chehab <mchehab@s-opensource.com>2017-09-23 13:51:44 +0200
commit1e33936d3baee3b688ec12b372534522b9256032 (patch)
tree1673deaead005adbe1133adb51a140f39666a638 /drivers/media/platform/Makefile
parentmedia: dt-bindings: document the CEC GPIO bindings (diff)
downloadlinux-1e33936d3baee3b688ec12b372534522b9256032.tar.xz
linux-1e33936d3baee3b688ec12b372534522b9256032.zip
media: cec-gpio: add HDMI CEC GPIO driver
Add a simple HDMI CEC GPIO driver that sits on top of the cec-pin framework. While I have heard of SoCs that use the GPIO pin for CEC (apparently an early RockChip SoC used that), the main use-case of this driver is to function as a debugging tool. By connecting the CEC line to a GPIO pin on a Raspberry Pi 3 for example it turns it into a CEC debugger and protocol analyzer. With 'cec-ctl --monitor-pin' the CEC traffic can be analyzed. But of course it can also be used with any hardware project where the HDMI CEC line is hooked up to a pull-up gpio line. In addition this has (optional) support for tracing HPD changes if the HPD is connected to a GPIO. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Diffstat (limited to 'drivers/media/platform/Makefile')
-rw-r--r--drivers/media/platform/Makefile2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/media/platform/Makefile b/drivers/media/platform/Makefile
index c1ef946bf032..9bf48f118537 100644
--- a/drivers/media/platform/Makefile
+++ b/drivers/media/platform/Makefile
@@ -26,6 +26,8 @@ obj-$(CONFIG_VIDEO_CODA) += coda/
obj-$(CONFIG_VIDEO_SH_VEU) += sh_veu.o
+obj-$(CONFIG_CEC_GPIO) += cec-gpio/
+
obj-$(CONFIG_VIDEO_MEM2MEM_DEINTERLACE) += m2m-deinterlace.o
obj-$(CONFIG_VIDEO_MUX) += video-mux.o