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drivers: thermal: tsens: Move get_temp_tsens_v2 to allow sharing

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Just rename the function and move it to allow code sharing with future
versions of TSENS IP

Signed-off-by: Amit Kucheria <amit.kucheria@linaro.org>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
This commit is contained in:
Amit Kucheria
2019-03-20 18:47:57 +05:30
committed by Eduardo Valentin
parent dbdaa582e4
commit c8b6169093
3 changed files with 37 additions and 36 deletions
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35
drivers/thermal/qcom/tsens-common.c
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@@ -102,6 +102,41 @@ static inline int code_to_degc(u32 adc_code, const struct tsens_sensor *s)
return degc;
}
int get_temp_tsens_valid(struct tsens_priv *priv, int i, int *temp)
{
struct tsens_sensor *s = &priv->sensor[i];
u32 temp_idx = LAST_TEMP_0 + s->hw_id;
u32 valid_idx = VALID_0 + s->hw_id;
u32 last_temp = 0, valid, mask;
int ret;
ret = regmap_field_read(priv->rf[valid_idx], &valid);
if (ret)
return ret;
while (!valid) {
/* Valid bit is 0 for 6 AHB clock cycles.
* At 19.2MHz, 1 AHB clock is ~60ns.
* We should enter this loop very, very rarely.
*/
ndelay(400);
ret = regmap_field_read(priv->rf[valid_idx], &valid);
if (ret)
return ret;
}
/* Valid bit is set, OK to read the temperature */
ret = regmap_field_read(priv->rf[temp_idx], &last_temp);
if (ret)
return ret;
mask = GENMASK(priv->fields[LAST_TEMP_0].msb,
priv->fields[LAST_TEMP_0].lsb);
/* Convert temperature from deciCelsius to milliCelsius */
*temp = sign_extend32(last_temp, fls(mask) - 1) * 100;
return 0;
}
int get_temp_common(struct tsens_priv *priv, int i, int *temp)
{
struct tsens_sensor *s = &priv->sensor[i];