Kernel/linux-stable
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2025-01-10 07:00:48 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

regulator: rtmv20: Fix .set_current_limit/.get_current_limit callbacks

Browse Source 
Current code does not set .curr_table and .n_linear_ranges settings,
so it cannot use the regulator_get/set_current_limit_regmap helpers.
If we setup the curr_table, it will has 200 entries.
Implement customized .set_current_limit/.get_current_limit callbacks
instead.

Fixes: b8c054a5eaf0 ("regulator: rtmv20: Adds support for Richtek RTMV20 load switch regulator")
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Reviewed-by: ChiYuan Huang <cy_huang@richtek.com>
Link: https://lore.kernel.org/r/20210530124101.477727-1-axel.lin@ingics.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Axel Lin 2021-05-30 20:41:00 +08:00 committed by Mark Brown
parent a072cbda97
commit 86ab21cc39
No known key found for this signature in database
GPG Key ID: 24D68B725D5487D0
1 changed files with 40 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

42
drivers/regulator/rtmv20-regulator.c
View File

@ -103,9 +103,47 @@ static int rtmv20_lsw_disable(struct regulator_dev *rdev)
return 0; return 0;
} }
static int rtmv20_lsw_set_current_limit(struct regulator_dev *rdev, int min_uA,
int max_uA)
{
int sel;
if (min_uA > RTMV20_LSW_MAXUA || max_uA < RTMV20_LSW_MINUA)
return -EINVAL;
if (max_uA > RTMV20_LSW_MAXUA)
max_uA = RTMV20_LSW_MAXUA;
sel = (max_uA - RTMV20_LSW_MINUA) / RTMV20_LSW_STEPUA;
/* Ensure the selected setting is still in range */
if ((sel * RTMV20_LSW_STEPUA + RTMV20_LSW_MINUA) < min_uA)
return -EINVAL;
sel <<= ffs(rdev->desc->csel_mask) - 1;
return regmap_update_bits(rdev->regmap, rdev->desc->csel_reg,
rdev->desc->csel_mask, sel);
}
static int rtmv20_lsw_get_current_limit(struct regulator_dev *rdev)
{
unsigned int val;
int ret;
ret = regmap_read(rdev->regmap, rdev->desc->csel_reg, &val);
if (ret)
return ret;
val &= rdev->desc->csel_mask;
val >>= ffs(rdev->desc->csel_mask) - 1;
return val * RTMV20_LSW_STEPUA + RTMV20_LSW_MINUA;
}
static const struct regulator_ops rtmv20_regulator_ops = { static const struct regulator_ops rtmv20_regulator_ops = {
.set_current_limit = regulator_set_current_limit_regmap, .set_current_limit = rtmv20_lsw_set_current_limit,
.get_current_limit = regulator_get_current_limit_regmap, .get_current_limit = rtmv20_lsw_get_current_limit,
.enable = rtmv20_lsw_enable, .enable = rtmv20_lsw_enable,
.disable = rtmv20_lsw_disable, .disable = rtmv20_lsw_disable,
.is_enabled = regulator_is_enabled_regmap, .is_enabled = regulator_is_enabled_regmap,