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Date: Mon, 3 Aug 2015 17:56:33 +0530
From: Kishon Vijay Abraham I <kishon@...com>
To: <ulf.hansson@...aro.org>, <afenkart@...il.com>, <tony@...mide.com>,
<devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
<linux-mmc@...r.kernel.org>, <linux-omap@...r.kernel.org>
CC: <nsekhar@...com>, <kishon@...com>
Subject: [PATCH v2 08/16] mmc: host: omap_hsmmc: add separate functions for enable/disable supply
No functional change. Cleanup omap_hsmmc_set_power by adding separate
functions for enable/disable supply and invoke it from
omap_hsmmc_set_power.
Signed-off-by: Kishon Vijay Abraham I <kishon@...com>
---
drivers/mmc/host/omap_hsmmc.c | 101 +++++++++++++++++++++++++++--------------
1 file changed, 66 insertions(+), 35 deletions(-)
diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c
index 63c9fe7..81bec66 100644
--- a/drivers/mmc/host/omap_hsmmc.c
+++ b/drivers/mmc/host/omap_hsmmc.c
@@ -247,6 +247,65 @@ static int omap_hsmmc_get_cover_state(struct device *dev)
#ifdef CONFIG_REGULATOR
+static int omap_hsmmc_enable_supply(struct mmc_host *mmc, int vdd)
+{
+ int ret;
+
+ if (mmc->supply.vmmc) {
+ ret = mmc_regulator_set_ocr(mmc, mmc->supply.vmmc, vdd);
+ if (ret)
+ return ret;
+ }
+
+ /* Enable interface voltage rail, if needed */
+ if (mmc->supply.vqmmc) {
+ ret = regulator_enable(mmc->supply.vqmmc);
+ if (ret) {
+ dev_err(mmc_dev(mmc), "vmmc_aux reg enable failed\n");
+ goto err_vqmmc;
+ }
+ }
+
+ return 0;
+
+err_vqmmc:
+ if (mmc->supply.vmmc)
+ mmc_regulator_set_ocr(mmc, mmc->supply.vmmc, 0);
+
+ return ret;
+}
+
+static int omap_hsmmc_disable_supply(struct mmc_host *mmc)
+{
+ int ret;
+ int status;
+
+ if (mmc->supply.vqmmc) {
+ ret = regulator_disable(mmc->supply.vqmmc);
+ if (ret) {
+ dev_err(mmc_dev(mmc), "vmmc_aux reg disable failed\n");
+ return ret;
+ }
+ }
+
+ if (mmc->supply.vmmc) {
+ ret = mmc_regulator_set_ocr(mmc, mmc->supply.vmmc, 0);
+ if (ret)
+ goto err_set_ocr;
+ }
+
+ return 0;
+
+err_set_ocr:
+ if (mmc->supply.vqmmc) {
+ status = regulator_enable(mmc->supply.vqmmc);
+ if (status)
+ dev_err(mmc_dev(mmc), "vmmc_aux re-enable failed\n");
+ }
+
+ return ret;
+}
+
static int omap_hsmmc_set_power(struct device *dev, int power_on, int vdd)
{
struct omap_hsmmc_host *host =
@@ -289,36 +348,13 @@ static int omap_hsmmc_set_power(struct device *dev, int power_on, int vdd)
* chips/cards need an interface voltage rail too.
*/
if (power_on) {
- if (mmc->supply.vmmc) {
- ret = mmc_regulator_set_ocr(mmc, mmc->supply.vmmc, vdd);
- if (ret)
- return ret;
- }
-
- /* Enable interface voltage rail, if needed */
- if (mmc->supply.vqmmc) {
- ret = regulator_enable(mmc->supply.vqmmc);
- if (ret) {
- dev_err(dev, "vmmc_aux reg enable failed\n");
- goto err_set_vqmmc;
- }
- }
+ ret = omap_hsmmc_enable_supply(mmc, vdd);
+ if (ret)
+ return ret;
} else {
- /* Shut down the rail */
- if (mmc->supply.vqmmc) {
- ret = regulator_disable(mmc->supply.vqmmc);
- if (ret) {
- dev_err(dev, "vmmc_aux reg disable failed\n");
- return ret;
- }
- }
-
- if (mmc->supply.vmmc) {
- /* Then proceed to shut down the local regulator */
- ret = mmc_regulator_set_ocr(mmc, mmc->supply.vmmc, 0);
- if (ret)
- return ret;
- }
+ ret = omap_hsmmc_disable_supply(mmc);
+ if (ret)
+ return ret;
}
if (host->pbias) {
@@ -348,12 +384,7 @@ static int omap_hsmmc_set_power(struct device *dev, int power_on, int vdd)
return 0;
err_set_voltage:
- if (mmc->supply.vqmmc)
- regulator_disable(mmc->supply.vqmmc);
-
-err_set_vqmmc:
- if (mmc->supply.vmmc)
- mmc_regulator_set_ocr(mmc, mmc->supply.vmmc, 0);
+ omap_hsmmc_disable_supply(mmc);
return ret;
}
--
1.7.9.5
--
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