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authorTom Rini2021-04-11 07:40:25 -0400
committerTom Rini2021-04-11 07:40:25 -0400
commitc6a4ee2aaee541c12d290dd25561e771396817cc (patch)
treedcc1c02b7c2dd1b6834c29317e16eab747558da0 /doc
parent59e84da0b88e4465f15d196bba59f22c906fa50d (diff)
parent38e18d6392fca9f6809cb3079af3069efc3d181f (diff)
Merge tag 'video-2021-07-rc1' of https://source.denx.de/u-boot/custodians/u-boot-video
- rk3399 eDP support - pwm backlight without a known period_ns - add Chrome OS EC PWM driver - Kconfig SIMPLE_PANEL DM_GPIO dependency - remove mb862xx driver remnants - fix KiB format in reserve_video() debug trace - fix tegra124 sor CSTM LVDS_EN_ENABLE/DISABLE config - fix line padding calculation for 16 and 24 BPP bitmaps
Diffstat (limited to 'doc')
-rw-r--r--doc/device-tree-bindings/pwm/cros-ec-pwm.txt23
1 files changed, 23 insertions, 0 deletions
diff --git a/doc/device-tree-bindings/pwm/cros-ec-pwm.txt b/doc/device-tree-bindings/pwm/cros-ec-pwm.txt
new file mode 100644
index 00000000000..f198d088917
--- /dev/null
+++ b/doc/device-tree-bindings/pwm/cros-ec-pwm.txt
@@ -0,0 +1,23 @@
+PWM controlled by ChromeOS EC
+
+Google's ChromeOS EC PWM is a simple PWM attached to the Embedded Controller
+(EC) and controlled via a host-command interface.
+
+An EC PWM node should be only found as a sub-node of the EC node (see
+doc/device-tree-bindings/misc/cros-ec.txt).
+
+Required properties:
+- compatible: Must contain "google,cros-ec-pwm"
+- #pwm-cells: Should be 1. The cell specifies the PWM index.
+
+Example:
+ cros-ec@0 {
+ compatible = "google,cros-ec-spi";
+
+ ...
+
+ cros_ec_pwm: ec-pwm {
+ compatible = "google,cros-ec-pwm";
+ #pwm-cells = <1>;
+ };
+ };