From mboxrd@z Thu Jan 1 00:00:00 1970 From: tushar.behera@linaro.org (Tushar Behera) Date: Mon, 19 May 2014 12:46:09 +0530 Subject: [PATCH RFC 3/4] clk: samsung: Add driver to control CLKOUT line on Exynos SoCs In-Reply-To: <1400175151-27779-4-git-send-email-t.figa@samsung.com> References: <1400175151-27779-1-git-send-email-t.figa@samsung.com> <1400175151-27779-4-git-send-email-t.figa@samsung.com> Message-ID: <5379AFB9.9030608@linaro.org> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.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 > --- 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 > 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