The patch
ASoC: samsung: i2s: Let runtime PM operations to control op_clk too
has been applied to the asoc tree at
git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git
All being well this means that it will be integrated into the linux-next tree (usually sometime in the next 24 hours) and sent to Linus during the next merge window (or sooner if it is a bug fix), however if problems are discovered then the patch may be dropped or reverted.
You may get further e-mails resulting from automated or manual testing and review of the tree, please engage with people reporting problems and send followup patches addressing any issues that are reported if needed.
If any updates are required or you are submitting further changes they should be sent as incremental updates against current git, existing patches will not be replaced.
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Thanks, Mark
From afa99da863e8e00efd8ce2f8840ed31d50abb889 Mon Sep 17 00:00:00 2001
From: Marek Szyprowski m.szyprowski@samsung.com Date: Thu, 29 Dec 2016 12:34:06 +0100 Subject: [PATCH] ASoC: samsung: i2s: Let runtime PM operations to control op_clk too
This patch adds handling of parent operational clock to runtime PM callbacks. This way it is ensured that when I2S module is in runtime suspended state, all its parent clocks are disabled and unprepared.
Signed-off-by: Marek Szyprowski m.szyprowski@samsung.com Signed-off-by: Mark Brown broonie@kernel.org --- sound/soc/samsung/i2s.c | 5 +++++ 1 file changed, 5 insertions(+)
diff --git a/sound/soc/samsung/i2s.c b/sound/soc/samsung/i2s.c index df3fae862665..b2b9ee4a177a 100644 --- a/sound/soc/samsung/i2s.c +++ b/sound/soc/samsung/i2s.c @@ -546,6 +546,7 @@ static int i2s_set_sysclk(struct snd_soc_dai *dai,
if (WARN_ON(IS_ERR(i2s->op_clk))) { ret = PTR_ERR(i2s->op_clk); + i2s->op_clk = NULL; goto err; }
@@ -1121,6 +1122,8 @@ static int i2s_runtime_suspend(struct device *dev) i2s->suspend_i2scon = readl(i2s->addr + I2SCON); i2s->suspend_i2spsr = readl(i2s->addr + I2SPSR);
+ if (i2s->op_clk) + clk_disable_unprepare(i2s->op_clk); clk_disable_unprepare(i2s->clk);
return 0; @@ -1131,6 +1134,8 @@ static int i2s_runtime_resume(struct device *dev) struct i2s_dai *i2s = dev_get_drvdata(dev);
clk_prepare_enable(i2s->clk); + if (i2s->op_clk) + clk_prepare_enable(i2s->op_clk);
writel(i2s->suspend_i2scon, i2s->addr + I2SCON); writel(i2s->suspend_i2smod, i2s->addr + I2SMOD);