From: Kishon Vijay Abraham I <kishon@ti.com>
To: Ulf Hansson <ulf.hansson@linaro.org>,
Tony Lindgren <tony@atomide.com>,
Rob Herring <robh+dt@kernel.org>,
nsekhar@ti.com
Cc: devicetree@vger.kernel.org, linux-mmc@vger.kernel.org,
linux-kernel@vger.kernel.org, kishon@ti.com,
linux-omap@vger.kernel.org, linux-arm-kernel@lists.infradead.org
Subject: [PATCH 1/3] mmc: host: omap_hsmmc: Do not initialize MMC regulators to NULL on error
Date: Wed, 7 Jun 2017 14:06:10 +0530 [thread overview]
Message-ID: <20170607083612.14224-2-kishon@ti.com> (raw)
In-Reply-To: <20170607083612.14224-1-kishon@ti.com>
Do not initialize MMC regulators to NULL on error in omap_hsmmc driver
similar to what is done in mmc_regulator_get_supply(). This is in
preparation for using mmc_regulator_get_supply() to get MMC
regulators.
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
---
drivers/mmc/host/omap_hsmmc.c | 21 +++++++++------------
1 file changed, 9 insertions(+), 12 deletions(-)
diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c
index 8c39dccacf39..de82ac0a87e2 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)) {
@@ -480,7 +480,6 @@ static int omap_hsmmc_reg_get(struct omap_hsmmc_host *host)
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)
@@ -495,7 +494,6 @@ static int omap_hsmmc_reg_get(struct omap_hsmmc_host *host)
return ret;
dev_dbg(host->dev, "unable to get vmmc_aux regulator %ld\n",
PTR_ERR(mmc->supply.vqmmc));
- mmc->supply.vqmmc = NULL;
}
host->pbias = devm_regulator_get_optional(host->dev, "pbias");
@@ -508,7 +506,6 @@ 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 */
--
2.11.0
next prev parent reply other threads:[~2017-06-07 8:36 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-06-07 8:36 [PATCH 0/3] omap_hsmmc: use mmc_regulator_get_supply() to get regulators Kishon Vijay Abraham I
2017-06-07 8:36 ` Kishon Vijay Abraham I [this message]
2017-06-07 8:36 ` [PATCH 2/3] mmc: host: " Kishon Vijay Abraham I
2017-06-08 7:12 ` Ulf Hansson
2017-06-07 8:36 ` [PATCH 3/3] Documentation: dt-bindings: Document deprecation of "vmmc_aux" and using "vqmmc" Kishon Vijay Abraham I
2017-06-09 13:53 ` Rob Herring
2017-06-08 7:15 ` [PATCH 0/3] omap_hsmmc: use mmc_regulator_get_supply() to get regulators Ulf Hansson
2017-06-09 7:51 ` Kishon Vijay Abraham I
[not found] ` <19f289a5-cc1d-a14a-130a-ae45710d969e-l0cyMroinI0@public.gmane.org>
2017-06-12 7:59 ` Ulf Hansson
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