Hi Mateusz,
On Wednesday 28 of August 2013 18:13:01 Mateusz Krawczuk wrote:
> 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 <m.krawczuk@xxxxxxxxxxxxxxxxxxx>
> ---
> drivers/media/platform/s5p-tv/sdo_drv.c | 25 +++++++++++++++----------
> 1 file changed, 15 insertions(+), 10 deletions(-)
>
> diff --git a/drivers/media/platform/s5p-tv/sdo_drv.c
> b/drivers/media/platform/s5p-tv/sdo_drv.c index 9dbdfe6..a79e620 100644
> --- a/drivers/media/platform/s5p-tv/sdo_drv.c
> +++ b/drivers/media/platform/s5p-tv/sdo_drv.c
> @@ -209,10 +209,10 @@ static int sdo_streamon(struct sdo_device *sdev)
> clk_get_rate(sdev->fout_vpll));
> /* enable clock in SDO */
> sdo_write_mask(sdev, SDO_CLKCON, ~0, SDO_TVOUT_CLOCK_ON);
> - ret = clk_enable(sdev->dacphy);
> + ret = clk_prepare_enable(sdev->dacphy);
> if (ret < 0) {
> dev_err(sdev->dev,
> - "clk_enable(dacphy) failed !\n");
> + "clk_prepare_enable(dacphy) failed !\n");
nit: I haven't noticed this when reviewing previous patch, but please tone
down those errors messages a bit, by removing the exclamation mark (and the
space before it). We shouldn't be shouting at users. ;)
> goto fail;
> }
> /* enable DAC */
> @@ -230,7 +230,7 @@ static int sdo_streamoff(struct sdo_device *sdev)
> int tries;
>
> sdo_write_mask(sdev, SDO_DAC, 0, SDO_POWER_ON_DAC);
> - clk_disable(sdev->dacphy);
> + clk_disable_unprepare(sdev->dacphy);
> sdo_write_mask(sdev, SDO_CLKCON, 0, SDO_TVOUT_CLOCK_ON);
> for (tries = 100; tries; --tries) {
> if (sdo_read(sdev, SDO_CLKCON) & SDO_TVOUT_CLOCK_READY)
> @@ -274,7 +274,7 @@ static int sdo_runtime_suspend(struct device *dev)
> dev_info(dev, "suspend\n");
> regulator_disable(sdev->vdet);
> regulator_disable(sdev->vdac);
> - clk_disable(sdev->sclk_dac);
> + clk_disable_unprepare(sdev->sclk_dac);
> return 0;
> }
>
> @@ -286,7 +286,7 @@ static int sdo_runtime_resume(struct device *dev)
>
> dev_info(dev, "resume\n");
>
> - ret = clk_enable(sdev->sclk_dac);
> + ret = clk_prepare_enable(sdev->sclk_dac);
> if (ret < 0)
> return ret;
>
> @@ -319,7 +319,7 @@ static int sdo_runtime_resume(struct device *dev)
> vdac_r_dis:
> regulator_disable(sdev->vdac);
> dac_clk_dis:
> - clk_disable(sdev->sclk_dac);
> + clk_disable_unprepare(sdev->sclk_dac);
> return ret;
> }
>
> @@ -333,7 +333,7 @@ static int sdo_probe(struct platform_device *pdev)
> struct device *dev = &pdev->dev;
> struct sdo_device *sdev;
> struct resource *res;
> - int ret = 0;
> + int ret;
Hmm, this change doesn't look like belonging to this patch.
> struct clk *sclk_vpll;
>
> dev_info(dev, "probe start\n");
> @@ -425,8 +425,13 @@ static int sdo_probe(struct platform_device *pdev)
> }
>
> /* enable gate for dac clock, because mixer uses it */
> - clk_enable(sdev->dac);
> -
> + ret = clk_prepare_enable(sdev->dac);
> + if (ret < 0) {
> + dev_err(dev,
> + "clk_prepare_enable_enable(dac) failed !\n");
> + ret = PTR_ERR(sdev->dac);
Hmm, ret already contains the error value returned by clk_prepare_enable()
here, so this looks like a copy paste error.
Best regards,
Tomasz
> + goto fail_fout_vpll;
> + }
> /* configure power management */
> pm_runtime_enable(dev);
>
> @@ -464,7 +469,7 @@ static int sdo_remove(struct platform_device *pdev)
> struct sdo_device *sdev = sd_to_sdev(sd);
>
> pm_runtime_disable(&pdev->dev);
> - clk_disable(sdev->dac);
> + clk_disable_unprepare(sdev->dac);
> clk_put(sdev->fout_vpll);
> clk_put(sdev->dacphy);
> clk_put(sdev->dac);
--
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