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

Tomasz Figa tomasz.figa at gmail.com
Mon May 19 03:25:02 PDT 2014


Hi Tushar,

On 19.05.2014 09:16, Tushar Behera wrote:
> 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 at 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 at linaro.org>
> 

Thank you for testing.

>>  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.

Right, that's usually a good idea, I don't know why I haven't added one.
Thanks.

Best regards,
Tomasz



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