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path: root/drivers/mmc/host/omap_hsmmc.c
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Diffstat (limited to 'drivers/mmc/host/omap_hsmmc.c')
-rw-r--r--drivers/mmc/host/omap_hsmmc.c55
1 files changed, 23 insertions, 32 deletions
diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c
index 8c39dccacf39..7c12f3715676 100644
--- a/drivers/mmc/host/omap_hsmmc.c
+++ b/drivers/mmc/host/omap_hsmmc.c
@@ -250,14 +250,14 @@ static int omap_hsmmc_enable_supply(struct mmc_host *mmc)
struct omap_hsmmc_host *host = mmc_priv(mmc);
struct mmc_ios *ios = &mmc->ios;
- if (mmc->supply.vmmc) {
+ if (!IS_ERR(mmc->supply.vmmc)) {
ret = mmc_regulator_set_ocr(mmc, mmc->supply.vmmc, ios->vdd);
if (ret)
return ret;
}
/* Enable interface voltage rail, if needed */
- if (mmc->supply.vqmmc && !host->vqmmc_enabled) {
+ if (!IS_ERR(mmc->supply.vqmmc) && !host->vqmmc_enabled) {
ret = regulator_enable(mmc->supply.vqmmc);
if (ret) {
dev_err(mmc_dev(mmc), "vmmc_aux reg enable failed\n");
@@ -269,7 +269,7 @@ static int omap_hsmmc_enable_supply(struct mmc_host *mmc)
return 0;
err_vqmmc:
- if (mmc->supply.vmmc)
+ if (!IS_ERR(mmc->supply.vmmc))
mmc_regulator_set_ocr(mmc, mmc->supply.vmmc, 0);
return ret;
@@ -281,7 +281,7 @@ static int omap_hsmmc_disable_supply(struct mmc_host *mmc)
int status;
struct omap_hsmmc_host *host = mmc_priv(mmc);
- if (mmc->supply.vqmmc && host->vqmmc_enabled) {
+ if (!IS_ERR(mmc->supply.vqmmc) && host->vqmmc_enabled) {
ret = regulator_disable(mmc->supply.vqmmc);
if (ret) {
dev_err(mmc_dev(mmc), "vmmc_aux reg disable failed\n");
@@ -290,7 +290,7 @@ static int omap_hsmmc_disable_supply(struct mmc_host *mmc)
host->vqmmc_enabled = 0;
}
- if (mmc->supply.vmmc) {
+ if (!IS_ERR(mmc->supply.vmmc)) {
ret = mmc_regulator_set_ocr(mmc, mmc->supply.vmmc, 0);
if (ret)
goto err_set_ocr;
@@ -299,7 +299,7 @@ static int omap_hsmmc_disable_supply(struct mmc_host *mmc)
return 0;
err_set_ocr:
- if (mmc->supply.vqmmc) {
+ if (!IS_ERR(mmc->supply.vqmmc)) {
status = regulator_enable(mmc->supply.vqmmc);
if (status)
dev_err(mmc_dev(mmc), "vmmc_aux re-enable failed\n");
@@ -313,7 +313,7 @@ static int omap_hsmmc_set_pbias(struct omap_hsmmc_host *host, bool power_on,
{
int ret;
- if (!host->pbias)
+ if (IS_ERR(host->pbias))
return 0;
if (power_on) {
@@ -363,7 +363,7 @@ static int omap_hsmmc_set_power(struct omap_hsmmc_host *host, int power_on,
* If we don't see a Vcc regulator, assume it's a fixed
* voltage always-on regulator.
*/
- if (!mmc->supply.vmmc)
+ if (IS_ERR(mmc->supply.vmmc))
return 0;
if (mmc_pdata(host)->before_set_reg)
@@ -415,7 +415,7 @@ static int omap_hsmmc_disable_boot_regulator(struct regulator *reg)
{
int ret;
- if (!reg)
+ if (IS_ERR(reg))
return 0;
if (regulator_is_enabled(reg)) {
@@ -466,36 +466,27 @@ static int omap_hsmmc_disable_boot_regulators(struct omap_hsmmc_host *host)
static int omap_hsmmc_reg_get(struct omap_hsmmc_host *host)
{
- int ocr_value = 0;
int ret;
struct mmc_host *mmc = host->mmc;
if (mmc_pdata(host)->set_power)
return 0;
- mmc->supply.vmmc = devm_regulator_get_optional(host->dev, "vmmc");
- if (IS_ERR(mmc->supply.vmmc)) {
- ret = PTR_ERR(mmc->supply.vmmc);
- if ((ret != -ENODEV) && host->dev->of_node)
- return ret;
- dev_dbg(host->dev, "unable to get vmmc regulator %ld\n",
- PTR_ERR(mmc->supply.vmmc));
- mmc->supply.vmmc = NULL;
- } else {
- ocr_value = mmc_regulator_get_ocrmask(mmc->supply.vmmc);
- if (ocr_value > 0)
- mmc_pdata(host)->ocr_mask = ocr_value;
- }
+ ret = mmc_regulator_get_supply(mmc);
+ if (ret == -EPROBE_DEFER)
+ return ret;
/* Allow an aux regulator */
- mmc->supply.vqmmc = devm_regulator_get_optional(host->dev, "vmmc_aux");
if (IS_ERR(mmc->supply.vqmmc)) {
- ret = PTR_ERR(mmc->supply.vqmmc);
- if ((ret != -ENODEV) && host->dev->of_node)
- return ret;
- dev_dbg(host->dev, "unable to get vmmc_aux regulator %ld\n",
- PTR_ERR(mmc->supply.vqmmc));
- mmc->supply.vqmmc = NULL;
+ mmc->supply.vqmmc = devm_regulator_get_optional(host->dev,
+ "vmmc_aux");
+ if (IS_ERR(mmc->supply.vqmmc)) {
+ ret = PTR_ERR(mmc->supply.vqmmc);
+ if ((ret != -ENODEV) && host->dev->of_node)
+ return ret;
+ dev_dbg(host->dev, "unable to get vmmc_aux regulator %ld\n",
+ PTR_ERR(mmc->supply.vqmmc));
+ }
}
host->pbias = devm_regulator_get_optional(host->dev, "pbias");
@@ -508,7 +499,6 @@ static int omap_hsmmc_reg_get(struct omap_hsmmc_host *host)
}
dev_dbg(host->dev, "unable to get pbias regulator %ld\n",
PTR_ERR(host->pbias));
- host->pbias = NULL;
}
/* For eMMC do not power off when not in sleep state */
@@ -2146,7 +2136,8 @@ static int omap_hsmmc_probe(struct platform_device *pdev)
if (ret)
goto err_irq;
- mmc->ocr_avail = mmc_pdata(host)->ocr_mask;
+ if (!mmc->ocr_avail)
+ mmc->ocr_avail = mmc_pdata(host)->ocr_mask;
omap_hsmmc_disable_irq(host);