Signed-off-by: Amit Kucheria <amit.kucheria@xxxxxxxxxx> Reviewed-by: Bjorn Andersson <bjorn.andersson@xxxxxxxxxx> --- drivers/thermal/qcom/tsens-v2.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/drivers/thermal/qcom/tsens-v2.c b/drivers/thermal/qcom/tsens-v2.c index 1871945..0473f33 100644 --- a/drivers/thermal/qcom/tsens-v2.c +++ b/drivers/thermal/qcom/tsens-v2.c @@ -7,6 +7,9 @@ #include <linux/regmap.h> #include "tsens.h" +#define TRDY_OFFSET 0xe4 +#define TRDY_READY_BIT BIT(0) + #define STATUS_OFFSET 0xa0 #define LAST_TEMP_MASK 0xfff #define STATUS_VALID_BIT BIT(21) @@ -19,6 +22,12 @@ static int get_temp_tsens_v2(struct tsens_device *tmdev, int id, int *temp) unsigned int sensor_addr; int last_temp = 0, last_temp2 = 0, last_temp3 = 0, ret; + ret = regmap_read(tmdev->map, TRDY_OFFSET, &code); + if (ret) + return ret; + if (code & TRDY_READY_BIT) + return -ENODATA; + sensor_addr = STATUS_OFFSET + s->hw_id * 4; ret = regmap_read(tmdev->map, sensor_addr, &code); if (ret) -- 2.7.4 -- To unsubscribe from this list: send the line "unsubscribe linux-arm-msm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
