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thermal: rockchip: Add support to save and restore tsadc offset for rv1126b

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Change-Id: Ie21cd1854b4421036a7eafc210ef2b2e378b2967
Signed-off-by: Finley Xiao <finley.xiao@rock-chips.com>
This commit is contained in:
Finley Xiao
2025-09-23 11:44:04 +08:00
committed by Tao Huang
parent 6a5a34e360
commit 7007e186ca
1 changed files with 13 additions and 1 deletions
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14
drivers/thermal/rockchip_thermal.c
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@@ -70,6 +70,7 @@ enum adc_sort_mode {
struct phy_config {
unsigned int bias;
unsigned int offset;
};
/**
@@ -337,6 +338,7 @@ struct rockchip_thermal_data {
#define RV1126B_GRF_TSADC_CON0 0x50
#define RV1126B_GRF_TSADC_CON1 0x54
#define RV1126B_GRF_TSADC_CON4 0x60
#define RV1126B_GRF_TSADC_CON6 0x68
#define RV1126B_GRF_TSADC_ST1 0x114
#define RV1126B_UNLOCK_VALUE 0xa5
@@ -345,6 +347,8 @@ struct rockchip_thermal_data {
#define RV1126B_UNLOCK_TRIGGER_MASK (BIT(8) << 16)
#define RV1126B_MAX_BIAS 0x7f
#define RV1126B_BIAS_MASK (0x7f << 16)
#define RV1126B_MAX_OFFSET 0xffff
#define RV1126B_OFFSET_MASK (0xffff << 16)
#define RV1126B_CTRL_MASK (0x8078 << 16)
#define GRF_SARADC_TESTBIT_ON (0x10001 << 2)
@@ -1719,8 +1723,16 @@ static void rv1126b_tsadc_phy_init(struct device *dev, struct regmap *grf,
regmap_write(grf, RV1126B_GRF_TSADC_CON6,
phy_cfg->bias | RV1126B_BIAS_MASK);
}
if (!phy_cfg->offset) {
regmap_read(grf, RV1126B_GRF_TSADC_CON4, &val);
phy_cfg->offset = val & RV1126B_MAX_OFFSET;
} else {
regmap_write(grf, RV1126B_GRF_TSADC_CON4,
phy_cfg->offset | RV1126B_OFFSET_MASK);
}
regmap_read(grf, RV1126B_GRF_TSADC_ST1, &val);
dev_info(dev, "width=0x%x, bias=0x%x\n", val, phy_cfg->bias);
dev_info(dev, "width=0x%x, bias=0x%x, offset=0x%x\n", val, phy_cfg->bias,
phy_cfg->offset);
regmap_write(grf, RV1126B_GRF_TSADC_CON0, RV1126B_CTRL_MASK);
regmap_write(grf, RV1126B_GRF_TSADC_CON1,
RV1126B_UNLOCK_VALUE | RV1126B_UNLOCK_VALUE_MASK);