From 6fc9bb82a3ef0691fc2297cd7404d3873c95b7be Mon Sep 17 00:00:00 2001 From: Detlev Casanova Date: Fri, 2 Aug 2024 09:47:36 -0400 Subject: [PATCH] mfd: rk8xx: Add support for rk806 on i2c bus The ArmSoM Sige 5 board connects the rk806 PMIC on an i2c bus. Signed-off-by: Detlev Casanova Link: https://lore.kernel.org/r/20240802134736.283851-1-detlev.casanova@collabora.com Signed-off-by: Lee Jones --- drivers/mfd/rk8xx-i2c.c | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+) diff --git a/drivers/mfd/rk8xx-i2c.c b/drivers/mfd/rk8xx-i2c.c index 69a6b297d723..37287b06dab0 100644 --- a/drivers/mfd/rk8xx-i2c.c +++ b/drivers/mfd/rk8xx-i2c.c @@ -21,6 +21,17 @@ struct rk8xx_i2c_platform_data { int variant; }; +static bool rk806_is_volatile_reg(struct device *dev, unsigned int reg) +{ + switch (reg) { + case RK806_POWER_EN0 ... RK806_POWER_EN5: + case RK806_DVS_START_CTRL ... RK806_INT_MSK1: + return true; + } + + return false; +} + static bool rk808_is_volatile_reg(struct device *dev, unsigned int reg) { /* @@ -121,6 +132,14 @@ static const struct regmap_config rk805_regmap_config = { .volatile_reg = rk808_is_volatile_reg, }; +static const struct regmap_config rk806_regmap_config = { + .reg_bits = 8, + .val_bits = 8, + .max_register = RK806_BUCK_RSERVE_REG5, + .cache_type = REGCACHE_MAPLE, + .volatile_reg = rk806_is_volatile_reg, +}; + static const struct regmap_config rk808_regmap_config = { .reg_bits = 8, .val_bits = 8, @@ -150,6 +169,11 @@ static const struct rk8xx_i2c_platform_data rk805_data = { .variant = RK805_ID, }; +static const struct rk8xx_i2c_platform_data rk806_data = { + .regmap_cfg = &rk806_regmap_config, + .variant = RK806_ID, +}; + static const struct rk8xx_i2c_platform_data rk808_data = { .regmap_cfg = &rk808_regmap_config, .variant = RK808_ID, @@ -201,6 +225,7 @@ static SIMPLE_DEV_PM_OPS(rk8xx_i2c_pm_ops, rk8xx_suspend, rk8xx_resume); static const struct of_device_id rk8xx_i2c_of_match[] = { { .compatible = "rockchip,rk805", .data = &rk805_data }, + { .compatible = "rockchip,rk806", .data = &rk806_data }, { .compatible = "rockchip,rk808", .data = &rk808_data }, { .compatible = "rockchip,rk809", .data = &rk809_data }, { .compatible = "rockchip,rk816", .data = &rk816_data }, -- 2.39.5