Subject: [PATCH RFC 3/4] clk: samsung: Add driver to control CLKOUT line on Exynos SoCs

From: [email-masked] (Tushar Behera)
Date: Mon, 19 May 2014 12:46:09 +0530

On 05/15/2014 11:02 PM, Tomasz Figa wrote:
> This patch introduces a driver that handles configuration of CLKOUT pin
> of Exynos SoCs that can be used to output certain clocks from inside of
> the SoC to a dedicated output pin.
> 
> Signed-off-by: Tomasz Figa <[email-masked]>
> ---

Tested the series on Exynos5420-based peach-pit board for audio playback
(with an internal patch to set CLK_FIN_PLL as the parent of clkout).

Tested-by: Tushar Behera <[email-masked]>

>  Example :
>  pmu_system_controller: system-controller at 10040000 {
>  	compatible = "samsung,exynos5250-pmu", "syscon";
>  	reg = <0x10040000 0x5000>;
> +	#clock-cells = <0>;
> +	clock-names = "clkout0", "clkout1", "clkout2", "clkout3",
> +			"clkout4", "clkout8", "clkout9";
> +	clocks = <&clock CLK_OUT_DMC>, <&clock CLK_OUT_TOP>,
> +		<&clock CLK_OUT_LEFTBUS>, <&clock CLK_OUT_RIGHTBUS>,
> +		<&clock CLK_OUT_CPU>, <&clock CLK_XXTI>,
> +		<&clock CLK_XUSBXTI>;
>  };

Adding an usage example in the documentation would be helpful.

-- 
Tushar Behera