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regualtor: rtq2208: Initiate the default MTP_SEL state by hardware register

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Read the initial MTP_SEL state by hardware register to prevent the wrong
specified property value from the conflict of hardware pin assignment.

Signed-off-by: ChiYuan Huang <cy_huang@richtek.com>
Link: https://patch.msgid.link/557e872a87c603a26cf91f0d4448e527afcbbae8.1782444299.git.cy_huang@richtek.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
ChiYuan Huang 2026-06-26 11:38:53 +08:00 committed by Mark Brown
parent 9f6e4b8bef
commit 2f84cec84f
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GPG Key ID: 24D68B725D5487D0
1 changed files with 6 additions and 1 deletions
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7
drivers/regulator/rtq2208-regulator.c
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@ -12,6 +12,7 @@
#include <linux/mod_devicetable.h>
/* Register */
#define RTQ2208_REG_FSOUTB_CNTL 0x11
#define RTQ2208_REG_GLOBAL_INT1 0x12
#define RTQ2208_REG_FLT_RECORDBUCK_CB 0x18
#define RTQ2208_REG_GLOBAL_INT1_MASK 0x1D
@ -34,6 +35,7 @@
#define RTQ2208_REG_HIDDEN1 0xFF
/* Mask */
#define RTQ2208_MTP_SEL_RO_MASK BIT(7)
#define RTQ2208_BUCK_NR_MTP_SEL_MASK GENMASK(7, 0)
#define RTQ2208_BUCK_EN_NR_MTP_SEL0_MASK BIT(0)
#define RTQ2208_BUCK_EN_NR_MTP_SEL1_MASK BIT(1)
@ -465,10 +467,13 @@ static int rtq2208_parse_regulator_dt_data(int n_regulator, const unsigned int *
struct rtq2208_regulator_desc *rdesc[RTQ2208_LDO_MAX], struct device *dev,
unsigned int ldo1_fixed, unsigned int ldo2_fixed)
{
struct regmap *regmap = dev_get_regmap(dev, NULL);
int mtp_sel, i, idx;
/* get mtp_sel0 or mtp_sel1 */
mtp_sel = device_property_read_bool(dev, "richtek,mtp-sel-high");
mtp_sel = regmap_test_bits(regmap, RTQ2208_REG_FSOUTB_CNTL, RTQ2208_MTP_SEL_RO_MASK);
if (mtp_sel < 0)
return dev_err_probe(dev, mtp_sel, "Failed to init mtp_sel state\n");
for (i = 0; i < n_regulator; i++) {
idx = regulator_idx_table[i];