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pwm: Add device tree binding document for R-Car PWM Timer 

Add binding document for Renesas PWM Timer on R-Car SoCs.

Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
This commit is contained in:
Yoshihiro Shimoda 2015-09-30 17:47:52 +09:00 committed by Thierry Reding
parent 59d5c8b153
commit 7260d25145
1 changed files with 27 additions and 0 deletions
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Documentation/devicetree/bindings/pwm/renesas,pwm-rcar.txt Normal file
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* Renesas R-Car PWM Timer Controller
Required Properties:
- compatible: should be one of the following.
- "renesas,pwm-rcar": for generic R-Car compatible PWM Timer
- "renesas,pwm-r8a7778": for R-Car M1A
- "renesas,pwm-r8a7779": for R-Car H1
- "renesas,pwm-r8a7790": for R-Car H2
- "renesas,pwm-r8a7791": for R-Car M2-W
- "renesas,pwm-r8a7794": for R-Car E2
- reg: base address and length of the registers block for the PWM.
- #pwm-cells: should be 2. See pwm.txt in this directory for a description of
the cells format.
- clocks: clock phandle and specifier pair.
- pinctrl-0: phandle, referring to a default pin configuration node.
- pinctrl-names: Set to "default".
Example: R8A7790 (R-Car H2) PWM Timer node
pwm0: pwm@e6e30000 {
compatible = "renesas,pwm-r8a7790", "renesas,pwm-rcar";
reg = <0 0xe6e30000 0 0x8>;
#pwm-cells = <2>;
clocks = <&mstp5_clks R8A7790_CLK_PWM>;
pinctrl-0 = <&pwm0_pins>;
pinctrl-names = "default";
};