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arm64: dts: rockchip: add the pwm node info for RK3368 SoCs 

The pulse-width modulator (PWM) feature is very common in
embedded systems. On the rk3368 there exist 4 built-in PWM channels.

In general, the pwm pins can via the pinctrl to
configure iomux mode except the pwm2 since the pwm2 iomux mode from
the SoC control register.

Signed-off-by: Caesar Wang <wxt@rock-chips.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
This commit is contained in:
Caesar Wang 2015-12-01 17:13:26 +08:00 committed by Heiko Stuebner
parent 10a37de377
commit fa54322a94
1 changed files with 60 additions and 0 deletions
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60
arch/arm64/boot/dts/rockchip/rk3368.dtsi
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@ -498,6 +498,48 @@
status = "disabled";
};
pwm0: pwm@ff680000 {
compatible = "rockchip,rk3368-pwm", "rockchip,rk3288-pwm";
reg = <0x0 0xff680000 0x0 0x10>;
#pwm-cells = <3>;
pinctrl-names = "default";
pinctrl-0 = <&pwm0_pin>;
clocks = <&cru PCLK_PWM1>;
clock-names = "pwm";
status = "disabled";
};
pwm1: pwm@ff680010 {
compatible = "rockchip,rk3368-pwm", "rockchip,rk3288-pwm";
reg = <0x0 0xff680010 0x0 0x10>;
#pwm-cells = <3>;
pinctrl-names = "default";
pinctrl-0 = <&pwm1_pin>;
clocks = <&cru PCLK_PWM1>;
clock-names = "pwm";
status = "disabled";
};
pwm2: pwm@ff680020 {
compatible = "rockchip,rk3368-pwm", "rockchip,rk3288-pwm";
reg = <0x0 0xff680020 0x0 0x10>;
#pwm-cells = <3>;
clocks = <&cru PCLK_PWM1>;
clock-names = "pwm";
status = "disabled";
};
pwm3: pwm@ff680030 {
compatible = "rockchip,rk3368-pwm", "rockchip,rk3288-pwm";
reg = <0x0 0xff680030 0x0 0x10>;
#pwm-cells = <3>;
pinctrl-names = "default";
pinctrl-0 = <&pwm3_pin>;
clocks = <&cru PCLK_PWM1>;
clock-names = "pwm";
status = "disabled";
};
uart2: serial@ff690000 {
compatible = "rockchip,rk3368-uart", "snps,dw-apb-uart";
reg = <0x0 0xff690000 0x0 0x100>;
@ -739,6 +781,24 @@
};
};
pwm0 {
pwm0_pin: pwm0-pin {
rockchip,pins = <3 8 RK_FUNC_2 &pcfg_pull_none>;
};
};
pwm1 {
pwm1_pin: pwm1-pin {
rockchip,pins = <0 8 RK_FUNC_2 &pcfg_pull_none>;
};
};
pwm3 {
pwm3_pin: pwm3-pin {
rockchip,pins = <3 29 RK_FUNC_3 &pcfg_pull_none>;
};
};
sdio0 {
sdio0_bus1: sdio0-bus1 {
rockchip,pins = <2 28 RK_FUNC_1 &pcfg_pull_up>;