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mfd: rk8xx: Add support for rk806 on i2c bus

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The ArmSoM Sige 5 board connects the rk806 PMIC on an i2c bus.

Signed-off-by: Detlev Casanova <detlev.casanova@collabora.com>
Link: https://lore.kernel.org/r/20240802134736.283851-1-detlev.casanova@collabora.com
Signed-off-by: Lee Jones <lee@kernel.org>
This commit is contained in:
Detlev Casanova 2024-08-02 09:47:36 -04:00 committed by Lee Jones
parent 0d078d47cd
commit 6fc9bb82a3
1 changed files with 25 additions and 0 deletions
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25
drivers/mfd/rk8xx-i2c.c
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@ -21,6 +21,17 @@ struct rk8xx_i2c_platform_data {
int variant; 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) 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, .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 = { static const struct regmap_config rk808_regmap_config = {
.reg_bits = 8, .reg_bits = 8,
.val_bits = 8, .val_bits = 8,
@ -150,6 +169,11 @@ static const struct rk8xx_i2c_platform_data rk805_data = {
.variant = RK805_ID, .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 = { static const struct rk8xx_i2c_platform_data rk808_data = {
.regmap_cfg = &rk808_regmap_config, .regmap_cfg = &rk808_regmap_config,
.variant = RK808_ID, .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[] = { static const struct of_device_id rk8xx_i2c_of_match[] = {
{ .compatible = "rockchip,rk805", .data = &rk805_data }, { .compatible = "rockchip,rk805", .data = &rk805_data },
{ .compatible = "rockchip,rk806", .data = &rk806_data },
{ .compatible = "rockchip,rk808", .data = &rk808_data }, { .compatible = "rockchip,rk808", .data = &rk808_data },
{ .compatible = "rockchip,rk809", .data = &rk809_data }, { .compatible = "rockchip,rk809", .data = &rk809_data },
{ .compatible = "rockchip,rk816", .data = &rk816_data }, { .compatible = "rockchip,rk816", .data = &rk816_data },