Commit 6fc9bb82 authored by Detlev Casanova's avatar Detlev Casanova Committed by Lee Jones
Browse files

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: default avatarDetlev Casanova <detlev.casanova@collabora.com>
Link: https://lore.kernel.org/r/20240802134736.283851-1-detlev.casanova@collabora.com


Signed-off-by: default avatarLee Jones <lee@kernel.org>
parent 0d078d47

drivers/mfd/rk8xx-i2c.c

+25 −0
Original line number Diff line number Diff line
@@ -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 },