[PATCH 21/33] regulator: hi6421v600-regulator: cleanup debug messages

Mauro Carvalho Chehab
2020-08-11T15:43:40Z

- use dev_foo() instead of pr_foo();
- cleanup the messages, making them more standard and easier
to understand.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
---
drivers/regulator/hi6421v600-regulator.c | 76 +++++++++++++++---------
1 file changed, 47 insertions(+), 29 deletions(-)

diff --git a/drivers/regulator/hi6421v600-regulator.c b/drivers/regulator/hi6421v600-regulator.c
index 7d82d11f4b52..2d1096ecb277 100644
--- a/drivers/regulator/hi6421v600-regulator.c
+++ b/drivers/regulator/hi6421v600-regulator.c
@@ -59,9 +59,11 @@ static int hisi_regulator_is_enabled(struct regulator_dev *rdev)
struct hisi_pmic *pmic = sreg->pmic;

reg_val = hisi_pmic_read(pmic, rdev->desc->enable_reg);
- pr_debug("<[%s]: enable_reg=0x%x,enable_state=%d>\n",
+
+ dev_dbg(&rdev->dev,
+ "%s: enable_reg=0x%x, val= 0x%x, enable_state=%d\n",
__func__, rdev->desc->enable_reg,
- (reg_val & rdev->desc->enable_mask));
+ reg_val, (reg_val & rdev->desc->enable_mask));

return ((reg_val & rdev->desc->enable_mask) != 0);
}
@@ -74,7 +76,8 @@ static int hisi_regulator_enable(struct regulator_dev *rdev)
/* keep a distance of off_on_delay from last time disabled */
usleep_range(rdev->desc->off_on_delay, rdev->desc->off_on_delay + 1000);

- pr_debug("<[%s]: off_on_delay=%dus>\n", __func__, rdev->desc->off_on_delay);
+ dev_dbg(&rdev->dev, "%s: off_on_delay=%d us\n",
+ __func__, rdev->desc->off_on_delay);

/* cannot enable more than one regulator at one time */
mutex_lock(&enable_mutex);
@@ -85,7 +88,7 @@ static int hisi_regulator_enable(struct regulator_dev *rdev)
hisi_pmic_rmw(pmic, rdev->desc->enable_reg,
rdev->desc->enable_mask,
rdev->desc->enable_mask);
- pr_debug("<[%s]: enable_reg=0x%x,enable_mask=0x%x>\n",
+ dev_dbg(&rdev->dev, "%s: enable_reg=0x%x, enable_mask=0x%x\n",
__func__, rdev->desc->enable_reg,
rdev->desc->enable_mask);

@@ -111,16 +114,20 @@ static int hisi_regulator_get_voltage(struct regulator_dev *rdev)
struct hi6421v600_regulator *sreg = rdev_get_drvdata(rdev);
struct hisi_pmic *pmic = sreg->pmic;
u32 reg_val, selector;
+ int vol;

/* get voltage selector */
reg_val = hisi_pmic_read(pmic, rdev->desc->vsel_reg);
- pr_debug("<[%s]: vsel_reg=0x%x>\n",
- __func__, rdev->desc->vsel_reg);
-
selector = (reg_val & rdev->desc->vsel_mask) >>
(ffs(rdev->desc->vsel_mask) - 1);

- return rdev->desc->ops->list_voltage(rdev, selector);
+ vol = rdev->desc->ops->list_voltage(rdev, selector);
+
+ dev_dbg(&rdev->dev,
+ "%s: vsel_reg=0x%x, val=0x%x, entry=0x%x, voltage=%d mV\n",
+ __func__, rdev->desc->vsel_reg, reg_val, selector, vol/ 1000);
+
+ return vol;
}

static int hisi_regulator_set_voltage(struct regulator_dev *rdev,
@@ -129,10 +136,14 @@ static int hisi_regulator_set_voltage(struct regulator_dev *rdev,
struct hi6421v600_regulator *sreg = rdev_get_drvdata(rdev);
struct hisi_pmic *pmic = sreg->pmic;
u32 vsel;
- int ret = 0;
+ int uV, ret = 0;

for (vsel = 0; vsel < rdev->desc->n_voltages; vsel++) {
- int uV = rdev->desc->volt_table[vsel];
+ uV = rdev->desc->volt_table[vsel];
+ dev_dbg(&rdev->dev,
+ "%s: min %d, max %d, value[%u] = %d\n",
+ __func__, min_uV, max_uV, vsel, uV);
+
/* Break at the first in-range value */
if (min_uV <= uV && uV <= max_uV)
break;
@@ -146,13 +157,14 @@ static int hisi_regulator_set_voltage(struct regulator_dev *rdev,
/* set voltage selector */
hisi_pmic_rmw(pmic, rdev->desc->vsel_reg,
rdev->desc->vsel_mask,
- vsel << (ffs(rdev->desc->vsel_mask) - 1));
+ vsel << (ffs(rdev->desc->vsel_mask) - 1));

- pr_debug("<[%s]: vsel_reg=0x%x, vsel_mask=0x%x, value=0x%x>\n",
+ dev_dbg(&rdev->dev,
+ "%s: vsel_reg=0x%x, vsel_mask=0x%x, value=0x%x, voltage=%d mV\n",
__func__,
rdev->desc->vsel_reg,
rdev->desc->vsel_mask,
- vsel << (ffs(rdev->desc->vsel_mask) - 1));
+ vsel << (ffs(rdev->desc->vsel_mask) - 1), uV / 1000);

return ret;
}
@@ -162,17 +174,21 @@ static unsigned int hisi_regulator_get_mode(struct regulator_dev *rdev)
struct hi6421v600_regulator *sreg = rdev_get_drvdata(rdev);
struct hisi_pmic *pmic = sreg->pmic;
u32 reg_val;
+ unsigned int mode;

reg_val = hisi_pmic_read(pmic, rdev->desc->enable_reg);
- pr_debug("<[%s]: reg_val=%d, enable_reg=0x%x, eco_mode_mask=0x%x>\n",
- __func__, reg_val,
- rdev->desc->enable_reg,
- sreg->eco_mode_mask);

if (reg_val & sreg->eco_mode_mask)
- return REGULATOR_MODE_IDLE;
+ mode = REGULATOR_MODE_IDLE;
else
- return REGULATOR_MODE_NORMAL;
+ mode = REGULATOR_MODE_NORMAL;
+
+ dev_dbg(&rdev->dev,
+ "%s: enable_reg=0x%x, eco_mode_mask=0x%x, reg_val=0x%x, %s mode\n",
+ __func__, rdev->desc->enable_reg, sreg->eco_mode_mask, reg_val,
+ mode == REGULATOR_MODE_IDLE ? "idle" : "normal");
+
+ return mode;
}

static int hisi_regulator_set_mode(struct regulator_dev *rdev,
@@ -198,7 +214,8 @@ static int hisi_regulator_set_mode(struct regulator_dev *rdev,
sreg->eco_mode_mask,
eco_mode << (ffs(sreg->eco_mode_mask) - 1));

- pr_debug("<[%s]: enable_reg=0x%x, eco_mode_mask=0x%x, value=0x%x>\n",
+ dev_dbg(&rdev->dev,
+ "%s: enable_reg=0x%x, eco_mode_mask=0x%x, value=0x%x\n",
__func__,
rdev->desc->enable_reg,
sreg->eco_mode_mask,
@@ -212,10 +229,13 @@ static unsigned int hisi_regulator_get_optimum_mode(struct regulator_dev *rdev,
{
struct hi6421v600_regulator *sreg = rdev_get_drvdata(rdev);

- if (load_uA || ((unsigned int)load_uA > sreg->eco_uA))
+ if (load_uA || ((unsigned int)load_uA > sreg->eco_uA)) {
+ dev_dbg(&rdev->dev, "%s: normal mode", __func__);
return REGULATOR_MODE_NORMAL;
- else
+ } else {
+ dev_dbg(&rdev->dev, "%s: idle mode", __func__);
return REGULATOR_MODE_IDLE;
+ }
}

static int hisi_dt_parse(struct platform_device *pdev,
@@ -333,7 +353,7 @@ static int hisi_regulator_probe_ldo(struct platform_device *pdev,

initdata = of_get_regulator_init_data(dev, np, NULL);
if (!initdata) {
- pr_err("get regulator init data error !\n");
+ dev_err(dev, "failed to get regulator data\n");
return -EINVAL;
}

@@ -343,14 +363,14 @@ static int hisi_regulator_probe_ldo(struct platform_device *pdev,
ret = of_property_read_u32_array(np, "hisilicon,valid-modes-mask",
&constraint->valid_modes_mask, 1);
if (ret) {
- pr_err("no hisilicon,valid-modes-mask property set\n");
+ dev_err(dev, "no valid modes mask\n");
ret = -ENODEV;
return ret;
}
ret = of_property_read_u32_array(np, "hisilicon,valid-idle-mask",
&temp_modes, 1);
if (ret) {
- pr_err("no hisilicon,valid-modes-mask property set\n");
+ dev_err(dev, "no valid idle mask\n");
ret = -ENODEV;
return ret;
}
@@ -374,10 +394,8 @@ static int hisi_regulator_probe_ldo(struct platform_device *pdev,

/* parse device tree data for regulator specific */
ret = hisi_dt_parse(pdev, sreg, rdesc);
- if (ret) {
- dev_err(dev, "device tree parameter parse error!\n");
+ if (ret)
goto hisi_probe_end;
- }

config.dev = &pdev->dev;
config.init_data = initdata;
@@ -393,7 +411,7 @@ static int hisi_regulator_probe_ldo(struct platform_device *pdev,
goto hisi_probe_end;
}

- pr_debug("[%s]:valid_modes_mask[0x%x], valid_ops_mask[0x%x]\n",
+ dev_dbg(dev, "%s:valid_modes_mask: 0x%x, valid_ops_mask: 0x%x\n",
rdesc->name,
constraint->valid_modes_mask, constraint->valid_ops_mask);

--
2.26.2