The patch
ASoC: img-spdif-out: Add control of sys clock to runtime PM
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.
Please add any relevant lists and maintainers to the CCs when replying to this mail.
Thanks, Mark
From e8639d0c65ba4036b51d63e222080e56384b0573 Mon Sep 17 00:00:00 2001
From: Ed Blake ed.blake@sondrel.com Date: Fri, 6 Oct 2017 15:56:07 +0100 Subject: [PATCH] ASoC: img-spdif-out: Add control of sys clock to runtime PM
Disable sys clock as well as ref clock when runtime suspended.
Signed-off-by: Ed Blake ed.blake@sondrel.com Signed-off-by: Mark Brown broonie@kernel.org --- sound/soc/img/img-spdif-out.c | 31 +++++++++++++++++-------------- 1 file changed, 17 insertions(+), 14 deletions(-)
diff --git a/sound/soc/img/img-spdif-out.c b/sound/soc/img/img-spdif-out.c index 1808a5542fd1..934ed3df2ebf 100644 --- a/sound/soc/img/img-spdif-out.c +++ b/sound/soc/img/img-spdif-out.c @@ -57,6 +57,7 @@ static int img_spdif_out_runtime_suspend(struct device *dev) struct img_spdif_out *spdif = dev_get_drvdata(dev);
clk_disable_unprepare(spdif->clk_ref); + clk_disable_unprepare(spdif->clk_sys);
return 0; } @@ -66,9 +67,16 @@ static int img_spdif_out_runtime_resume(struct device *dev) struct img_spdif_out *spdif = dev_get_drvdata(dev); int ret;
+ ret = clk_prepare_enable(spdif->clk_sys); + if (ret) { + dev_err(dev, "clk_enable failed: %d\n", ret); + return ret; + } + ret = clk_prepare_enable(spdif->clk_ref); if (ret) { dev_err(dev, "clk_enable failed: %d\n", ret); + clk_disable_unprepare(spdif->clk_sys); return ret; }
@@ -358,21 +366,21 @@ static int img_spdif_out_probe(struct platform_device *pdev) return PTR_ERR(spdif->clk_ref); }
- ret = clk_prepare_enable(spdif->clk_sys); - if (ret) - return ret; - - img_spdif_out_writel(spdif, IMG_SPDIF_OUT_CTL_FS_MASK, - IMG_SPDIF_OUT_CTL); - - img_spdif_out_reset(spdif); - pm_runtime_enable(&pdev->dev); if (!pm_runtime_enabled(&pdev->dev)) { ret = img_spdif_out_runtime_resume(&pdev->dev); if (ret) goto err_pm_disable; } + ret = pm_runtime_get_sync(&pdev->dev); + if (ret < 0) + goto err_suspend; + + img_spdif_out_writel(spdif, IMG_SPDIF_OUT_CTL_FS_MASK, + IMG_SPDIF_OUT_CTL); + + img_spdif_out_reset(spdif); + pm_runtime_put(&pdev->dev);
spin_lock_init(&spdif->lock);
@@ -399,21 +407,16 @@ static int img_spdif_out_probe(struct platform_device *pdev) img_spdif_out_runtime_suspend(&pdev->dev); err_pm_disable: pm_runtime_disable(&pdev->dev); - clk_disable_unprepare(spdif->clk_sys);
return ret; }
static int img_spdif_out_dev_remove(struct platform_device *pdev) { - struct img_spdif_out *spdif = platform_get_drvdata(pdev); - pm_runtime_disable(&pdev->dev); if (!pm_runtime_status_suspended(&pdev->dev)) img_spdif_out_runtime_suspend(&pdev->dev);
- clk_disable_unprepare(spdif->clk_sys); - return 0; }