[PATCH v7 04/12] regulator: bd9571mwv: rid of using struct bd9571mwv

From: Yoshihiro Shimoda
Date: Thu Dec 24 2020 - 02:05:29 EST


To simplify this driver, use dev_get_regmap() and
rid of using struct bd9571mwv.

Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@xxxxxxxxxxx>
Reviewed-by: Matti Vaittinen <matti.vaittinen@xxxxxxxxxxxxxxxxx>
---
drivers/regulator/bd9571mwv-regulator.c | 49 +++++++++++++++++----------------
1 file changed, 26 insertions(+), 23 deletions(-)

diff --git a/drivers/regulator/bd9571mwv-regulator.c b/drivers/regulator/bd9571mwv-regulator.c
index e690c2c..42b6a70 100644
--- a/drivers/regulator/bd9571mwv-regulator.c
+++ b/drivers/regulator/bd9571mwv-regulator.c
@@ -17,7 +17,7 @@
#include <linux/mfd/bd9571mwv.h>

struct bd9571mwv_reg {
- struct bd9571mwv *bd;
+ struct regmap *regmap;

/* DDR Backup Power */
u8 bkup_mode_cnt_keepon; /* from "rohm,ddr-backup-power" */
@@ -137,26 +137,30 @@ static const struct regulator_desc regulators[] = {
};

#ifdef CONFIG_PM_SLEEP
-static int bd9571mwv_bkup_mode_read(struct bd9571mwv *bd, unsigned int *mode)
+static int bd9571mwv_bkup_mode_read(struct bd9571mwv_reg *bdreg,
+ unsigned int *mode)
{
int ret;

- ret = regmap_read(bd->regmap, BD9571MWV_BKUP_MODE_CNT, mode);
+ ret = regmap_read(bdreg->regmap, BD9571MWV_BKUP_MODE_CNT, mode);
if (ret) {
- dev_err(bd->dev, "failed to read backup mode (%d)\n", ret);
+ dev_err(regmap_get_device(bdreg->regmap),
+ "failed to read backup mode (%d)\n", ret);
return ret;
}

return 0;
}

-static int bd9571mwv_bkup_mode_write(struct bd9571mwv *bd, unsigned int mode)
+static int bd9571mwv_bkup_mode_write(struct bd9571mwv_reg *bdreg,
+ unsigned int mode)
{
int ret;

- ret = regmap_write(bd->regmap, BD9571MWV_BKUP_MODE_CNT, mode);
+ ret = regmap_write(bdreg->regmap, BD9571MWV_BKUP_MODE_CNT, mode);
if (ret) {
- dev_err(bd->dev, "failed to configure backup mode 0x%x (%d)\n",
+ dev_err(regmap_get_device(bdreg->regmap),
+ "failed to configure backup mode 0x%x (%d)\n",
mode, ret);
return ret;
}
@@ -194,7 +198,7 @@ static ssize_t backup_mode_store(struct device *dev,
* Configure DDR Backup Mode, to change the role of the accessory power
* switch from a power switch to a wake-up switch, or vice versa
*/
- ret = bd9571mwv_bkup_mode_read(bdreg->bd, &mode);
+ ret = bd9571mwv_bkup_mode_read(bdreg, &mode);
if (ret)
return ret;

@@ -202,7 +206,7 @@ static ssize_t backup_mode_store(struct device *dev,
if (bdreg->bkup_mode_enabled)
mode |= bdreg->bkup_mode_cnt_keepon;

- ret = bd9571mwv_bkup_mode_write(bdreg->bd, mode);
+ ret = bd9571mwv_bkup_mode_write(bdreg, mode);
if (ret)
return ret;

@@ -221,7 +225,7 @@ static int bd9571mwv_suspend(struct device *dev)
return 0;

/* Save DDR Backup Mode */
- ret = bd9571mwv_bkup_mode_read(bdreg->bd, &mode);
+ ret = bd9571mwv_bkup_mode_read(bdreg, &mode);
if (ret)
return ret;

@@ -235,7 +239,7 @@ static int bd9571mwv_suspend(struct device *dev)
mode |= bdreg->bkup_mode_cnt_keepon;

if (mode != bdreg->bkup_mode_cnt_saved)
- return bd9571mwv_bkup_mode_write(bdreg->bd, mode);
+ return bd9571mwv_bkup_mode_write(bdreg, mode);

return 0;
}
@@ -248,7 +252,7 @@ static int bd9571mwv_resume(struct device *dev)
return 0;

/* Restore DDR Backup Mode */
- return bd9571mwv_bkup_mode_write(bdreg->bd, bdreg->bkup_mode_cnt_saved);
+ return bd9571mwv_bkup_mode_write(bdreg, bdreg->bkup_mode_cnt_saved);
}

static const struct dev_pm_ops bd9571mwv_pm = {
@@ -268,7 +272,6 @@ static int bd9571mwv_regulator_remove(struct platform_device *pdev)

static int bd9571mwv_regulator_probe(struct platform_device *pdev)
{
- struct bd9571mwv *bd = dev_get_drvdata(pdev->dev.parent);
struct regulator_config config = { };
struct bd9571mwv_reg *bdreg;
struct regulator_dev *rdev;
@@ -279,40 +282,40 @@ static int bd9571mwv_regulator_probe(struct platform_device *pdev)
if (!bdreg)
return -ENOMEM;

- bdreg->bd = bd;
+ bdreg->regmap = dev_get_regmap(pdev->dev.parent, NULL);

platform_set_drvdata(pdev, bdreg);

config.dev = &pdev->dev;
- config.dev->of_node = bd->dev->of_node;
- config.driver_data = bd;
- config.regmap = bd->regmap;
+ config.dev->of_node = pdev->dev.parent->of_node;
+ config.driver_data = bdreg;
+ config.regmap = bdreg->regmap;

for (i = 0; i < ARRAY_SIZE(regulators); i++) {
rdev = devm_regulator_register(&pdev->dev, &regulators[i],
&config);
if (IS_ERR(rdev)) {
- dev_err(bd->dev, "failed to register %s regulator\n",
+ dev_err(&pdev->dev, "failed to register %s regulator\n",
pdev->name);
return PTR_ERR(rdev);
}
}

val = 0;
- of_property_read_u32(bd->dev->of_node, "rohm,ddr-backup-power", &val);
+ of_property_read_u32(config.dev->of_node, "rohm,ddr-backup-power", &val);
if (val & ~BD9571MWV_BKUP_MODE_CNT_KEEPON_MASK) {
- dev_err(bd->dev, "invalid %s mode %u\n",
+ dev_err(&pdev->dev, "invalid %s mode %u\n",
"rohm,ddr-backup-power", val);
return -EINVAL;
}
bdreg->bkup_mode_cnt_keepon = val;

- bdreg->rstbmode_level = of_property_read_bool(bd->dev->of_node,
+ bdreg->rstbmode_level = of_property_read_bool(config.dev->of_node,
"rohm,rstbmode-level");
- bdreg->rstbmode_pulse = of_property_read_bool(bd->dev->of_node,
+ bdreg->rstbmode_pulse = of_property_read_bool(config.dev->of_node,
"rohm,rstbmode-pulse");
if (bdreg->rstbmode_level && bdreg->rstbmode_pulse) {
- dev_err(bd->dev, "only one rohm,rstbmode-* may be specified");
+ dev_err(&pdev->dev, "only one rohm,rstbmode-* may be specified");
return -EINVAL;
}

--
2.7.4