diff options
| author | Kishon Vijay Abraham I <kishon@ti.com> | 2015-08-27 12:13:53 +0300 |
|---|---|---|
| committer | Ulf Hansson <ulf.hansson@linaro.org> | 2015-08-27 15:54:05 +0300 |
| commit | 7d607f917008218564ae44ca3ef47076a9b36e8f (patch) | |
| tree | 1e9e9f8aacf239e6b9b659adb4b529427f4c8488 | |
| parent | 5f2b3eab3fade514f9647e88356d29c7795ed7ef (diff) | |
| download | linux-7d607f917008218564ae44ca3ef47076a9b36e8f.tar.xz | |
mmc: host: omap_hsmmc: use devm_regulator_get_optional() for vmmc
Since vmmc can be optional for some platforms, use
devm_regulator_get_optional() for vmmc. Now return error only
if the return value of devm_regulator_get_optional() is not the
same as -ENODEV, since with -EPROBE_DEFER, the regulator can be
obtained later and all other errors are fatal.
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Tested-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
| -rw-r--r-- | drivers/mmc/host/omap_hsmmc.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c index 19ae7e693526..9b335aff5882 100644 --- a/drivers/mmc/host/omap_hsmmc.c +++ b/drivers/mmc/host/omap_hsmmc.c @@ -345,15 +345,19 @@ static int omap_hsmmc_reg_get(struct omap_hsmmc_host *host) { struct regulator *reg; int ocr_value = 0; + int ret; if (mmc_pdata(host)->set_power) return 0; - reg = devm_regulator_get(host->dev, "vmmc"); + reg = devm_regulator_get_optional(host->dev, "vmmc"); if (IS_ERR(reg)) { - dev_err(host->dev, "unable to get vmmc regulator %ld\n", + ret = PTR_ERR(reg); + if (ret != -ENODEV) + return ret; + host->vcc = NULL; + dev_dbg(host->dev, "unable to get vmmc regulator %ld\n", PTR_ERR(reg)); - return PTR_ERR(reg); } else { host->vcc = reg; ocr_value = mmc_regulator_get_ocrmask(reg); |