diff options
author | David Wu <david.wu@rock-chips.com> | 2017-08-08 23:38:29 +0800 |
---|---|---|
committer | Thierry Reding <thierry.reding@gmail.com> | 2017-08-18 17:31:56 +0200 |
commit | 27922ff59893e3445f69e397bcd92ae06fa89ca7 (patch) | |
tree | 02b9c02ddef44631e13a63e7d7ca62b2a085dae6 /Documentation/devicetree/bindings/pwm/pwm-rockchip.txt | |
parent | 1f8736c4e1ee1fd3d933208683a5315f9a9d6b5c (diff) |
pwm: rockchip: Add APB and function both clocks support
New PWM module provides two individual clocks for APB clock and function
clock.
Signed-off-by: David Wu <david.wu@rock-chips.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
Diffstat (limited to 'Documentation/devicetree/bindings/pwm/pwm-rockchip.txt')
-rw-r--r-- | Documentation/devicetree/bindings/pwm/pwm-rockchip.txt | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/Documentation/devicetree/bindings/pwm/pwm-rockchip.txt b/Documentation/devicetree/bindings/pwm/pwm-rockchip.txt index b8be3d09ee26..2350ef918bef 100644 --- a/Documentation/devicetree/bindings/pwm/pwm-rockchip.txt +++ b/Documentation/devicetree/bindings/pwm/pwm-rockchip.txt @@ -6,7 +6,13 @@ Required properties: "rockchip,rk3288-pwm": found on RK3288 SoC "rockchip,vop-pwm": found integrated in VOP on RK3288 SoC - reg: physical base address and length of the controller's registers - - clocks: phandle and clock specifier of the PWM reference clock + - clocks: See ../clock/clock-bindings.txt + - For older hardware (rk2928, rk3066, rk3188, rk3228, rk3288, rk3399): + - There is one clock that's used both to derive the functional clock + for the device and as the bus clock. + - For newer hardware (rk3328 and future socs): specified by name + - "pwm": This is used to derive the functional clock. + - "pclk": This is the APB bus clock. - #pwm-cells: must be 2 (rk2928) or 3 (rk3288). See pwm.txt in this directory for a description of the cell format. |