mirrors/linux-stable
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2024-10-03 15:47:36 +00:00
Code Issues Releases Wiki Activity

thermal/drivers/qcom/spmi-adc-tm5: Add support for HC variant

Browse source 
The variant of the ADC Thermal Monitor block found in e.g. PM8998 is
"HC", add support for this variant to the ADC TM5 driver in order to
support using VADC channels as thermal_zones on SDM845 et al.

Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/r/20211005032531.2251928-3-bjorn.andersson@linaro.org
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
This commit is contained in:
Bjorn Andersson 2021-10-04 20:25:29 -07:00 committed by Daniel Lezcano
parent db03874b85
commit f6c83676c6
1 changed files with 40 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

41
drivers/thermal/qcom/qcom-spmi-adc-tm5.c
View file

@ -82,6 +82,7 @@ struct adc_tm5_data {
const u32 full_scale_code_volt;
unsigned int *decimation;
unsigned int *hw_settle;
bool is_hc;
};
enum adc_tm5_cal_method {
@ -146,6 +147,14 @@ static const struct adc_tm5_data adc_tm5_data_pmic = {
64000, 128000 },
};
static const struct adc_tm5_data adc_tm_hc_data_pmic = {
.full_scale_code_volt = 0x70e4,
.decimation = (unsigned int []) { 256, 512, 1024 },
.hw_settle = (unsigned int []) { 0, 100, 200, 300, 400, 500, 600, 700,
1000, 2000, 4000, 6000, 8000, 10000 },
.is_hc = true,
};
static int adc_tm5_read(struct adc_tm5_chip *adc_tm, u16 offset, u8 *data, int len)
{
return regmap_bulk_read(adc_tm->regmap, adc_tm->base + offset, data, len);
@ -375,6 +384,29 @@ static int adc_tm5_register_tzd(struct adc_tm5_chip *adc_tm)
return 0;
}
static int adc_tm_hc_init(struct adc_tm5_chip *chip)
{
unsigned int i;
u8 buf[2];
int ret;
for (i = 0; i < chip->nchannels; i++) {
if (chip->channels[i].channel >= ADC_TM5_NUM_CHANNELS) {
dev_err(chip->dev, "Invalid channel %d\n", chip->channels[i].channel);
return -EINVAL;
}
}
buf[0] = chip->decimation;
buf[1] = chip->avg_samples | ADC_TM5_FAST_AVG_EN;
ret = adc_tm5_write(chip, ADC_TM5_ADC_DIG_PARAM, buf, sizeof(buf));
if (ret)
dev_err(chip->dev, "block write failed: %d\n", ret);
return ret;
}
static int adc_tm5_init(struct adc_tm5_chip *chip)
{
u8 buf[4], channels_available;
@ -591,7 +623,10 @@ static int adc_tm5_probe(struct platform_device *pdev)
return ret;
}
ret = adc_tm5_init(adc_tm);
if (adc_tm->data->is_hc)
ret = adc_tm_hc_init(adc_tm);
else
ret = adc_tm5_init(adc_tm);
if (ret) {
dev_err(dev, "adc-tm init failed\n");
return ret;
@ -612,6 +647,10 @@ static const struct of_device_id adc_tm5_match_table[] = {
.compatible = "qcom,spmi-adc-tm5",
.data = &adc_tm5_data_pmic,
},
{
.compatible = "qcom,spmi-adc-tm-hc",
.data = &adc_tm_hc_data_pmic,
},
{ }
};
MODULE_DEVICE_TABLE(of, adc_tm5_match_table);