[PATCH v5 4/4] media: s5p-tv: Fix mixer driver to work with CCF
From: Mateusz Krawczuk <hidden>
Date: 2013-09-21 15:01:34
Also in:
lkml
Subsystem:
media input infrastructure (v4l/dvb), the rest · Maintainers:
Mauro Carvalho Chehab, Linus Torvalds
Replace clk_enable by clock_enable_prepare and clk_disable with clk_disable_unprepare. Clock prepare is required by Clock Common Framework, and old clock driver didn`t support it. Without it Common Clock Framework prints a warning. Signed-off-by: Mateusz Krawczuk <redacted> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> --- drivers/media/platform/s5p-tv/mixer_drv.c | 34 +++++++++++++++++++++++++------ 1 file changed, 28 insertions(+), 6 deletions(-)
diff --git a/drivers/media/platform/s5p-tv/mixer_drv.c b/drivers/media/platform/s5p-tv/mixer_drv.c
index 8ce7c3e..7eea286 100644
--- a/drivers/media/platform/s5p-tv/mixer_drv.c
+++ b/drivers/media/platform/s5p-tv/mixer_drv.c@@ -347,19 +347,41 @@ static int mxr_runtime_resume(struct device *dev) { struct mxr_device *mdev = to_mdev(dev); struct mxr_resources *res = &mdev->res; + int ret; dev_dbg(mdev->dev, "resume - start\n"); mutex_lock(&mdev->mutex); /* turn clocks on */ - clk_enable(res->mixer); - clk_enable(res->vp); - clk_enable(res->sclk_mixer); + ret = clk_prepare_enable(res->mixer); + if (ret < 0) { + dev_err(mdev->dev, "clk_prepare_enable(mixer) failed\n"); + goto fail; + } + ret = clk_prepare_enable(res->vp); + if (ret < 0) { + dev_err(mdev->dev, "clk_prepare_enable(vp) failed\n"); + goto fail_mixer; + } + ret = clk_prepare_enable(res->sclk_mixer); + if (ret < 0) { + dev_err(mdev->dev, "clk_prepare_enable(sclk_mixer) failed\n"); + goto fail_vp; + } /* apply default configuration */ mxr_reg_reset(mdev); dev_dbg(mdev->dev, "resume - finished\n"); mutex_unlock(&mdev->mutex); return 0; + +fail_vp: + clk_disable_unprepare(res->vp); +fail_mixer: + clk_disable_unprepare(res->mixer); +fail: + mutex_unlock(&mdev->mutex); + dev_err(mdev->dev, "resume failed\n"); + return ret; } static int mxr_runtime_suspend(struct device *dev)
@@ -369,9 +391,9 @@ static int mxr_runtime_suspend(struct device *dev) dev_dbg(mdev->dev, "suspend - start\n"); mutex_lock(&mdev->mutex); /* turn clocks off */ - clk_disable(res->sclk_mixer); - clk_disable(res->vp); - clk_disable(res->mixer); + clk_disable_unprepare(res->sclk_mixer); + clk_disable_unprepare(res->vp); + clk_disable_unprepare(res->mixer); mutex_unlock(&mdev->mutex); dev_dbg(mdev->dev, "suspend - finished\n"); return 0;
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1.8.1.2