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thermal: rockchip: add tsadc support for rk1808

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Change-Id: Icc0bb8a076a3fbd5f8ab70db8d7e032165528ae8
Signed-off-by: Elaine Zhang <zhangqing@rock-chips.com>
This commit is contained in:
Elaine Zhang
2018-08-27 16:03:46 +08:00
committed by Tao Huang
parent 0e37cc4574
commit aa026b7cf8
1 changed files with 99 additions and 0 deletions
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99
drivers/thermal/rockchip_thermal.c
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@@ -210,8 +210,11 @@ struct rockchip_thermal_data {
#define TSADCV2_AUTO_PERIOD_HT_TIME 50 /* 50ms */
#define TSADCV3_AUTO_PERIOD_TIME 1875 /* 2.5ms */
#define TSADCV3_AUTO_PERIOD_HT_TIME 1875 /* 2.5ms */
#define TSADCV5_AUTO_PERIOD_TIME 1622 /* 2.5ms */
#define TSADCV5_AUTO_PERIOD_HT_TIME 1622 /* 2.5ms */
#define TSADCV2_USER_INTER_PD_SOC 0x340 /* 13 clocks */
#define TSADCV5_USER_INTER_PD_SOC 0xfc0 /* 97us, at least 90us */
#define GRF_SARADC_TESTBIT 0x0e644
#define GRF_TSADC_TESTBIT_L 0x0e648
@@ -219,8 +222,11 @@ struct rockchip_thermal_data {
#define PX30_GRF_SOC_CON2 0x0408
#define RK1808_BUS_GRF_SOC_CON0 0x0400
#define GRF_SARADC_TESTBIT_ON (0x10001 << 2)
#define GRF_TSADC_TESTBIT_H_ON (0x10001 << 2)
#define GRF_TSADC_BANDGAP_CHOPPER_EN (0x10001 << 2)
#define GRF_TSADC_VCM_EN_L (0x10001 << 7)
#define GRF_TSADC_VCM_EN_H (0x10001 << 7)
@@ -241,6 +247,7 @@ struct tsadc_table {
int temp;
};
static const struct tsadc_table rv1108_table[] = {
{0, -40000},
{374, -40000},
@@ -280,6 +287,45 @@ static const struct tsadc_table rv1108_table[] = {
{TSADCV2_DATA_MASK, 125000},
};
static const struct tsadc_table rk1808_code_table[] = {
{0, -40000},
{3455, -40000},
{3463, -35000},
{3471, -30000},
{3479, -25000},
{3487, -20000},
{3495, -15000},
{3503, -10000},
{3511, -5000},
{3519, 0},
{3527, 5000},
{3535, 10000},
{3543, 15000},
{3551, 20000},
{3559, 25000},
{3567, 30000},
{3576, 35000},
{3584, 40000},
{3592, 45000},
{3600, 50000},
{3609, 55000},
{3617, 60000},
{3625, 65000},
{3633, 70000},
{3642, 75000},
{3650, 80000},
{3659, 85000},
{3667, 90000},
{3675, 95000},
{3684, 100000},
{3692, 105000},
{3701, 110000},
{3709, 115000},
{3718, 120000},
{3726, 125000},
{TSADCV2_DATA_MASK, 125000},
};
static const struct tsadc_table rk3228_code_table[] = {
{0, -40000},
{588, -40000},
@@ -701,6 +747,31 @@ static void rk_tsadcv4_initialize(struct regmap *grf, void __iomem *regs,
regmap_write(grf, PX30_GRF_SOC_CON2, GRF_CON_TSADC_CH_INV);
}
static void rk_tsadcv5_initialize(struct regmap *grf, void __iomem *regs,
enum tshut_polarity tshut_polarity)
{
if (tshut_polarity == TSHUT_HIGH_ACTIVE)
writel_relaxed(0U | TSADCV2_AUTO_TSHUT_POLARITY_HIGH,
regs + TSADCV2_AUTO_CON);
else
writel_relaxed(0U & ~TSADCV2_AUTO_TSHUT_POLARITY_HIGH,
regs + TSADCV2_AUTO_CON);
writel_relaxed(TSADCV5_USER_INTER_PD_SOC, regs + TSADCV2_USER_CON);
writel_relaxed(TSADCV5_AUTO_PERIOD_TIME, regs + TSADCV2_AUTO_PERIOD);
writel_relaxed(TSADCV2_HIGHT_INT_DEBOUNCE_COUNT,
regs + TSADCV2_HIGHT_INT_DEBOUNCE);
writel_relaxed(TSADCV5_AUTO_PERIOD_HT_TIME,
regs + TSADCV2_AUTO_PERIOD_HT);
writel_relaxed(TSADCV2_HIGHT_TSHUT_DEBOUNCE_COUNT,
regs + TSADCV2_HIGHT_TSHUT_DEBOUNCE);
if (!IS_ERR(grf))
regmap_write(grf, RK1808_BUS_GRF_SOC_CON0,
GRF_TSADC_BANDGAP_CHOPPER_EN);
}
static void rk_tsadcv2_irq_ack(void __iomem *regs)
{
u32 val;
@@ -880,6 +951,30 @@ static const struct rockchip_tsadc_chip rv1108_tsadc_data = {
},
};
static const struct rockchip_tsadc_chip rk1808_tsadc_data = {
.chn_id[SENSOR_CPU] = 0, /* cpu sensor is channel 0 */
.chn_num = 1, /* one channel for tsadc */
.tshut_mode = TSHUT_MODE_GPIO, /* default TSHUT via GPIO give PMIC */
.tshut_polarity = TSHUT_LOW_ACTIVE, /* default TSHUT LOW ACTIVE */
.tshut_temp = 95000,
.initialize = rk_tsadcv5_initialize,
.irq_ack = rk_tsadcv3_irq_ack,
.control = rk_tsadcv3_control,
.get_temp = rk_tsadcv2_get_temp,
.set_alarm_temp = rk_tsadcv2_alarm_temp,
.set_tshut_temp = rk_tsadcv2_tshut_temp,
.set_tshut_mode = rk_tsadcv2_tshut_mode,
.table = {
.id = rk1808_code_table,
.length = ARRAY_SIZE(rk1808_code_table),
.data_mask = TSADCV2_DATA_MASK,
.mode = ADC_INCREMENT,
},
};
static const struct rockchip_tsadc_chip rk3228_tsadc_data = {
.chn_id[SENSOR_CPU] = 0, /* cpu sensor is channel 0 */
.chn_num = 1, /* one channel for tsadc */
@@ -1035,6 +1130,10 @@ static const struct of_device_id of_rockchip_thermal_match[] = {
.compatible = "rockchip,rv1108-tsadc",
.data = (void *)&rv1108_tsadc_data,
},
{
.compatible = "rockchip,rk1808-tsadc",
.data = (void *)&rk1808_tsadc_data,
},
{
.compatible = "rockchip,rk3228-tsadc",
.data = (void *)&rk3228_tsadc_data,