From mboxrd@z Thu Jan 1 00:00:00 1970 From: ulf.hansson@linaro.org (Ulf Hansson) Date: Mon, 19 Jan 2015 14:22:38 +0100 Subject: [PATCH V2 6/8] [media] exynos-gsc: Do full clock gating at runtime PM suspend In-Reply-To: <1421673760-2600-1-git-send-email-ulf.hansson@linaro.org> References: <1421673760-2600-1-git-send-email-ulf.hansson@linaro.org> Message-ID: <1421673760-2600-7-git-send-email-ulf.hansson@linaro.org> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org To potentially save more power in runtime PM suspend state, let's also prepare/unprepare the clock from the runtime PM callbacks. Signed-off-by: Ulf Hansson --- drivers/media/platform/exynos-gsc/gsc-core.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/media/platform/exynos-gsc/gsc-core.c b/drivers/media/platform/exynos-gsc/gsc-core.c index 5d3cfe8..0b126eb 100644 --- a/drivers/media/platform/exynos-gsc/gsc-core.c +++ b/drivers/media/platform/exynos-gsc/gsc-core.c @@ -1163,7 +1163,7 @@ static int gsc_runtime_resume(struct device *dev) pr_debug("gsc%d: state: 0x%lx", gsc->id, gsc->state); - ret = clk_enable(gsc->clock); + ret = clk_prepare_enable(gsc->clock); if (ret) return ret; @@ -1181,7 +1181,7 @@ static int gsc_runtime_suspend(struct device *dev) ret = gsc_m2m_suspend(gsc); if (!ret) - clk_disable(gsc->clock); + clk_disable_unprepare(gsc->clock); pr_debug("gsc%d: state: 0x%lx", gsc->id, gsc->state); return ret; -- 1.9.1