Re: [PATCH 3/5] ARM: dts: DRA7: Add TBCLK for PWMSS

[Tero Kristo <t-kristo@ti.com>]

On 06/01/2015 02:53 PM, Vignesh R wrote:
> tbclk is used by ehrpwm to generate PWM waveform on DRA7 SoC. Add Linux
> clock to control ehrpwm tbclk.

Care to add TRM reference here?

-Tero

>
> Signed-off-by: Vignesh R <vigneshr@ti.com>
> ---
>   arch/arm/boot/dts/dra7.dtsi          |  5 +++++
>   arch/arm/boot/dts/dra7xx-clocks.dtsi | 26 ++++++++++++++++++++++++++
>   2 files changed, 31 insertions(+)
>
> diff --git a/arch/arm/boot/dts/dra7.dtsi b/arch/arm/boot/dts/dra7.dtsi
> index f03a091cd076..387c76ca41f9 100644
> --- a/arch/arm/boot/dts/dra7.dtsi
> +++ b/arch/arm/boot/dts/dra7.dtsi
> @@ -131,6 +131,11 @@
>   							regulator-max-microvolt = <3000000>;
>   						};
>   					};
> +
> +					scm_conf_clocks: clocks {
> +						#address-cells = <1>;
> +						#size-cells = <0>;
> +					};
>   				};
>
>   				dra7_pmx_core: pinmux@1400 {
> diff --git a/arch/arm/boot/dts/dra7xx-clocks.dtsi b/arch/arm/boot/dts/dra7xx-clocks.dtsi
> index 3b933f74d000..92452d61cf58 100644
> --- a/arch/arm/boot/dts/dra7xx-clocks.dtsi
> +++ b/arch/arm/boot/dts/dra7xx-clocks.dtsi
> @@ -2136,3 +2136,29 @@
>   		clocks = <&dpll_usb_ck>;
>   	};
>   };
> +
> +&scm_conf_clocks {
> +       ehrpwm0_tbclk: ehrpwm0_tbclk {
> +		#clock-cells = <0>;
> +		compatible = "ti,gate-clock";
> +		clocks = <&l4_root_clk_div>;
> +		ti,bit-shift = <20>;
> +		reg = <0x0558>;
> +	};
> +
> +	ehrpwm1_tbclk: ehrpwm1_tbclk {
> +		#clock-cells = <0>;
> +		compatible = "ti,gate-clock";
> +		clocks = <&l4_root_clk_div>;
> +		ti,bit-shift = <21>;
> +		reg = <0x0558>;
> +	};
> +
> +	ehrpwm2_tbclk: ehrpwm2_tbclk {
> +		#clock-cells = <0>;
> +		compatible = "ti,gate-clock";
> +		clocks = <&l4_root_clk_div>;
> +		ti,bit-shift = <22>;
> +		reg = <0x0558>;
> +	};
> +};
>