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regulator: modify wl2864c iovdd current limit

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wl2864c default iovdd current limit is 220mA.
OV02b iovdd current can reach to 235mA.
This may cause cci issue as all camera shared iovdd, include cci pullup voltage.

Change-Id: If7828cd0b294cf2d362ec9001d39fceaceb9b734
Signed-off-by: liuwang2 <liuwang2@lenovo.com>
Reviewed-on: https://gerrit.mot.com/1859122
SLTApproved: Slta Waiver
SME-Granted: SME Approvals Granted
Tested-by: Jira Key
Reviewed-by: Dawei Wang <wangdw10@motorola.com>
Reviewed-by: Long Cheng <chengl1@motorola.com>
Reviewed-by: Zhuoran Xu <xuzr3@motorola.com>
Reviewed-by: Zhenxin Xi <xizx@motorola.com>
Submit-Approved: Jira Key
This commit is contained in:
liuwang2 2021-01-22 17:11:51 +08:00 • committed by Wang Liu
commit 84b34a32f6
1 changed files with 13 additions and 5 deletions
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18
drivers/regulator/wl2864c/wl2864c-regulator.c
View file

@ -245,7 +245,7 @@ static int wl2864c_i2c_probe(struct i2c_client *client,
{
struct device *dev = &client->dev;
struct wl2864c *chip;
int error, cs_gpio, ret;
int error, cs_gpio, ret, chip_rev, current_limit;
chip = devm_kzalloc(dev, sizeof(struct wl2864c), GFP_KERNEL);
if (!chip) {
@ -288,13 +288,21 @@ static int wl2864c_i2c_probe(struct i2c_client *client,
return error;
}
{
int chip_rev = 0;
ret = regmap_bulk_read(chip->regmap, 0x00, &chip_rev, 1);
ret = regmap_bulk_read(chip->regmap, WL2864C_CHIP_REV, &chip_rev, 1);
dev_err(chip->dev, "wl2864c chip rev: %02x\n", chip_rev);
printk("wl2864c chip rev: %02x\n", chip_rev);
ret = regmap_bulk_read(chip->regmap, WL2864C_CURRENT_LIMITSEL, &current_limit, 1);
dev_err(chip->dev, "default current limit is 0x%x\n", current_limit);
current_limit |= 0x40;
ret = regmap_write(chip->regmap, WL2864C_CURRENT_LIMITSEL, current_limit);
if (ret < 0) {
dev_err(chip->dev,"Failed to write current limit register\n");
}
ret = regmap_bulk_read(chip->regmap, WL2864C_CURRENT_LIMITSEL, &current_limit, 1);
dev_err(chip->dev, "modify current limit to 0x%x\n", current_limit);
ret = wl2864c_regulator_init(chip);
if (ret < 0) {
dev_err(chip->dev, "Failed to init regulator(%d)\n", ret);