From b402dfe84057e376b39c8adadeb65ad51aaffeb4 Mon Sep 17 00:00:00 2001 From: Jisheng Zhang Date: Sun, 29 Jun 2025 17:58:22 +0800 Subject: [PATCH] regulator: tps6287x-regulator: Enable REGCACHE_MAPLE Enable regmap cache to reduce i2c transactions and corresponding interrupts if regulator is accessed frequently. Signed-off-by: Jisheng Zhang Link: https://patch.msgid.link/20250629095822.868-1-jszhang@kernel.org Signed-off-by: Mark Brown --- drivers/regulator/tps6287x-regulator.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/regulator/tps6287x-regulator.c b/drivers/regulator/tps6287x-regulator.c index c0f5f0a186a3d..7b7d3ae392065 100644 --- a/drivers/regulator/tps6287x-regulator.c +++ b/drivers/regulator/tps6287x-regulator.c @@ -27,10 +27,17 @@ #define TPS6287X_CTRL3 0x03 #define TPS6287X_STATUS 0x04 +static bool tps6287x_volatile_reg(struct device *dev, unsigned int reg) +{ + return reg == TPS6287X_STATUS; +} + static const struct regmap_config tps6287x_regmap_config = { .reg_bits = 8, .val_bits = 8, .max_register = TPS6287X_STATUS, + .cache_type = REGCACHE_MAPLE, + .volatile_reg = tps6287x_volatile_reg, }; static const struct linear_range tps6287x_voltage_ranges[] = { -- 2.51.0