Re: [PATCH v8 1/7] mmc: omap_hsmmc: use devm_regulator API

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hi,

On Fri, Jan 10, 2014 at 09:25:20PM +0530, Balaji T K wrote:
> On Thursday 09 January 2014 08:48 PM, Felipe Balbi wrote:
> >Hi,
> >
> >On Thu, Jan 09, 2014 at 08:20:56PM +0530, Balaji T K wrote:
> >>Use devm_regulator API, while at it use
> >>devm_regulator_get_optional for optional vmmc_aux supply
> >>
> >>Signed-off-by: Balaji T K <balajitk@xxxxxx>
> >>Acked-by: Tony Lindgren <tony@xxxxxxxxxxx>
> >>---
> >>  drivers/mmc/host/omap_hsmmc.c |    6 ++----
> >>  1 files changed, 2 insertions(+), 4 deletions(-)
> >>
> >>diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c
> >>index dbd32ad..1eb4350 100644
> >>--- a/drivers/mmc/host/omap_hsmmc.c
> >>+++ b/drivers/mmc/host/omap_hsmmc.c
> >>@@ -316,7 +316,7 @@ static int omap_hsmmc_reg_get(struct omap_hsmmc_host *host)
> >>  	struct regulator *reg;
> >>  	int ocr_value = 0;
> >>
> >>-	reg = regulator_get(host->dev, "vmmc");
> >>+	reg = devm_regulator_get(host->dev, "vmmc");
> >>  	if (IS_ERR(reg)) {
> >>  		dev_err(host->dev, "vmmc regulator missing\n");
> >>  		return PTR_ERR(reg);
> >>@@ -336,7 +336,7 @@ static int omap_hsmmc_reg_get(struct omap_hsmmc_host *host)
> >>  		}
> >>
> >>  		/* Allow an aux regulator */
> >>-		reg = regulator_get(host->dev, "vmmc_aux");
> >>+		reg = devm_regulator_get_optional(host->dev, "vmmc_aux");
> >>  		host->vcc_aux = IS_ERR(reg) ? NULL : reg;
> >>
> >>  		/* For eMMC do not power off when not in sleep state */
> >>@@ -366,8 +366,6 @@ static int omap_hsmmc_reg_get(struct omap_hsmmc_host *host)
> >>
> >>  static void omap_hsmmc_reg_put(struct omap_hsmmc_host *host)
> >
> >since this function does nothing now, you could pretty much remove it
> >and move set_power assignment to ->remove() directly. No strong feelings
> >though.
> >
> Hi Felipe,
> 
> omap_hsmmc_reg_put is used in probe error handling path in addition to .remove(),
> so I would keep it for now to balance omap_hsmmc_reg_get.

right, but it does nothing but setting set_power to NULL ;-)

-- 
balbi

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