diff mbox

ASoC: omap: Check regulator enable for DAC on Pandora

Message ID 1362210594-17633-1-git-send-email-broonie@opensource.wolfsonmicro.com (mailing list archive)
State New, archived
Headers show

Commit Message

Mark Brown March 2, 2013, 7:49 a.m. UTC
This will probably never fail but it's better style.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
---
 sound/soc/omap/omap3pandora.c |    6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

Comments

Peter Ujfalusi March 2, 2013, 3:02 p.m. UTC | #1
On 03/02/2013 08:49 AM, Mark Brown wrote:
> This will probably never fail but it's better style.
> 
> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
> ---
>  sound/soc/omap/omap3pandora.c |    6 +++++-
>  1 file changed, 5 insertions(+), 1 deletion(-)
> 
> diff --git a/sound/soc/omap/omap3pandora.c b/sound/soc/omap/omap3pandora.c
> index 805512f..953483e 100644
> --- a/sound/soc/omap/omap3pandora.c
> +++ b/sound/soc/omap/omap3pandora.c
> @@ -85,7 +85,11 @@ static int omap3pandora_dac_event(struct snd_soc_dapm_widget *w,
>  	 * VCC power on/off and /PD pin high/low
>  	 */
>  	if (SND_SOC_DAPM_EVENT_ON(event)) {
> -		regulator_enable(omap3pandora_dac_reg);
> +		ret = regulator_enable(omap3pandora_dac_reg);
> +		if (ret != 0) {

The rest of this machine driver uses "if (ret < 0)" or "if (ret)". I would use:
 +		if (ret) {

> +			dev_err(w->dapm.dev, "Failed to power DAC: %d\n", ret);
> +			return ret;
> +		}
>  		mdelay(1);
>  		gpio_set_value(OMAP3_PANDORA_DAC_POWER_GPIO, 1);
>  	} else {
> 

Otherwise:
Acked-by: Peter Ujfalusi <peter.ujfalusi@ti.com>


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Jarkko Nikula March 3, 2013, 9:11 a.m. UTC | #2
On Sat, 2013-03-02 at 16:02 +0100, Peter Ujfalusi wrote:
> > diff --git a/sound/soc/omap/omap3pandora.c b/sound/soc/omap/omap3pandora.c
> > index 805512f..953483e 100644
> > --- a/sound/soc/omap/omap3pandora.c
> > +++ b/sound/soc/omap/omap3pandora.c
> > @@ -85,7 +85,11 @@ static int omap3pandora_dac_event(struct snd_soc_dapm_widget *w,
> >  	 * VCC power on/off and /PD pin high/low
> >  	 */
> >  	if (SND_SOC_DAPM_EVENT_ON(event)) {
> > -		regulator_enable(omap3pandora_dac_reg);
> > +		ret = regulator_enable(omap3pandora_dac_reg);
> > +		if (ret != 0) {
> 
> The rest of this machine driver uses "if (ret < 0)" or "if (ret)". I would use:
>  +		if (ret) {
> 
...
> Otherwise:
> Acked-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
> 
To whatever version of (ret != 0), (ret) or (ret < 0) is used :-)

Acked-by: Jarkko Nikula <jarkko.nikula@bitmer.com>

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diff mbox

Patch

diff --git a/sound/soc/omap/omap3pandora.c b/sound/soc/omap/omap3pandora.c
index 805512f..953483e 100644
--- a/sound/soc/omap/omap3pandora.c
+++ b/sound/soc/omap/omap3pandora.c
@@ -85,7 +85,11 @@  static int omap3pandora_dac_event(struct snd_soc_dapm_widget *w,
 	 * VCC power on/off and /PD pin high/low
 	 */
 	if (SND_SOC_DAPM_EVENT_ON(event)) {
-		regulator_enable(omap3pandora_dac_reg);
+		ret = regulator_enable(omap3pandora_dac_reg);
+		if (ret != 0) {
+			dev_err(w->dapm.dev, "Failed to power DAC: %d\n", ret);
+			return ret;
+		}
 		mdelay(1);
 		gpio_set_value(OMAP3_PANDORA_DAC_POWER_GPIO, 1);
 	} else {