From mboxrd@z Thu Jan  1 00:00:00 1970
From: Tushar Behera <tushar.behera@linaro.org>
Subject: Re: [PATCH RFC 3/4] clk: samsung: Add driver to control CLKOUT line
 on Exynos SoCs
Date: Mon, 19 May 2014 12:46:09 +0530
Message-ID: <5379AFB9.9030608@linaro.org>
References: <1400175151-27779-1-git-send-email-t.figa@samsung.com> <1400175151-27779-4-git-send-email-t.figa@samsung.com>
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To: Tomasz Figa <t.figa@samsung.com>, linux-samsung-soc@vger.kernel.org
Cc: linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Mike Turquette <mturquette@linaro.org>, Kukjin Kim <kgene.kim@samsung.com>, Rob Herring <robh+dt@kernel.org>, Mark Rutland <mark.rutland@arm.com>, Marek Szyprowski <m.szyprowski@samsung.com>, Pankaj Dubey <pankaj.dubey@samsung.com>, Rahul Sharma <rahul.sharma@samsung.com>, Mark Brown <broonie@kernel.org>, Tomasz Figa <tomasz.figa@gmail.com>
List-Id: devicetree@vger.kernel.org

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 <t.figa@samsung.com>
> ---

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 <tushar.behera@linaro.org>

>  Example :
>  pmu_system_controller: system-controller@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