From mboxrd@z Thu Jan 1 00:00:00 1970 From: richard.zhao@linaro.org (Richard Zhao) Date: Fri, 11 Nov 2011 18:50:24 +0800 Subject: [PATCH V3 01/14] clk: add helper functions clk_prepare_enable and clk_disable_unprepare In-Reply-To: <1321008637-19999-1-git-send-email-richard.zhao@linaro.org> References: <1321008637-19999-1-git-send-email-richard.zhao@linaro.org> Message-ID: <1321008637-19999-2-git-send-email-richard.zhao@linaro.org> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Signed-off-by: Richard Zhao --- include/linux/clk.h | 20 ++++++++++++++++++++ 1 files changed, 20 insertions(+), 0 deletions(-) diff --git a/include/linux/clk.h b/include/linux/clk.h index 7213b52..a7dc00d 100644 --- a/include/linux/clk.h +++ b/include/linux/clk.h @@ -107,6 +107,26 @@ static inline void clk_unprepare(struct clk *clk) } #endif +static inline int clk_prepare_enable(struct clk *clk) +{ + int ret; + + ret = clk_prepare(clk); + if (ret) + return ret; + ret = clk_enable(clk); + if (ret) + clk_unprepare(clk); + + return ret; +} + +static inline void clk_disable_unprepare(struct clk *clk) +{ + clk_disable(clk); + clk_unprepare(clk); +} + /** * clk_get_rate - obtain the current clock rate (in Hz) for a clock source. * This is only valid once the clock source has been enabled. -- 1.7.5.4