[PATCH v3 31/44] staging: regulator: hi6421v600-regulator: better handle modes

Mauro Carvalho Chehab
2020-08-17T07:13:53Z

Instead of implementing a custom set of properties, set
valid_modes_mask based on having or not a mask for enabling
the eco_mode.

This makes the code clearer, and remove some uneeded props
from DT.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
---
.../staging/hikey9xx/hi6421v600-regulator.c | 32 ++++++-------------
1 file changed, 10 insertions(+), 22 deletions(-)

diff --git a/drivers/staging/hikey9xx/hi6421v600-regulator.c b/drivers/staging/hikey9xx/hi6421v600-regulator.c
index e4a64893a7ad..bde7fa4d7e8f 100644
--- a/drivers/staging/hikey9xx/hi6421v600-regulator.c
+++ b/drivers/staging/hikey9xx/hi6421v600-regulator.c
@@ -338,7 +338,6 @@ static int hisi_regulator_probe_ldo(struct platform_device *pdev,
struct regulator_config config = { };
struct regulation_constraints *constraint;
const char *supplyname = NULL;
- unsigned int temp_modes;
int ret = 0;

initdata = of_get_regulator_init_data(dev, np, NULL);
@@ -347,25 +346,6 @@ static int hisi_regulator_probe_ldo(struct platform_device *pdev,
return -EINVAL;
}

- /* hisi regulator supports two modes */
- constraint = &initdata->constraints;
-
- ret = of_property_read_u32_array(np, "valid-modes-mask",
- &constraint->valid_modes_mask, 1);
- if (ret) {
- dev_err(dev, "no valid modes mask\n");
- ret = -ENODEV;
- return ret;
- }
- ret = of_property_read_u32_array(np, "valid-idle-mask",
- &temp_modes, 1);
- if (ret) {
- dev_err(dev, "no valid idle mask\n");
- ret = -ENODEV;
- return ret;
- }
- constraint->valid_ops_mask |= temp_modes;
-
sreg = kzalloc(sizeof(*sreg), GFP_KERNEL);
if (!sreg)
return -ENOMEM;
@@ -387,6 +367,15 @@ static int hisi_regulator_probe_ldo(struct platform_device *pdev,
if (ret)
goto hisi_probe_end;

+ /* hisi regulator supports two modes */
+ constraint = &initdata->constraints;
+
+ constraint->valid_modes_mask = REGULATOR_MODE_NORMAL;
+ if (sreg->eco_mode_mask) {
+ constraint->valid_modes_mask |= REGULATOR_MODE_IDLE;
+ constraint->valid_ops_mask |= REGULATOR_CHANGE_MODE;
+ }
+
config.dev = &pdev->dev;
config.init_data = initdata;
config.driver_data = sreg;
@@ -401,8 +390,7 @@ static int hisi_regulator_probe_ldo(struct platform_device *pdev,
goto hisi_probe_end;
}

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

dev_set_drvdata(dev, rdev);
--
2.26.2