Re: [RFC PATCH v3 1/8] mmc: omap_hsmmc: use devm_regulator API

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On Thursday 21 November 2013 08:38 PM, Ulf Hansson wrote:
On 21 November 2013 15:20, Balaji T K <balajitk@xxxxxx> 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>
---
  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)
  {
-       regulator_put(host->vcc);
-       regulator_put(host->vcc_aux);
         mmc_slot(host).set_power = NULL;
  }

While you are touching this code I would suggest to convert to
mmc_regulator_get_supply instead. That mean the vmmc_aux change name
to vqmmc though, so you need to adapt for this as well then.


Hi Ulf,

Thanks for the comments, I will address it on separate series.

Thanks and Regards,
Balaji T K
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