| Message ID | 20220930100917.498853-1-marcus.folkesson@gmail.com |
|---|---|
| State | Superseded |
| Headers | show |
| Series | thermal: imx8mm_thermal: wait for a valid measurement | expand |
diff --git a/drivers/thermal/imx8mm_thermal.c b/drivers/thermal/imx8mm_thermal.c index af666bd9e8d4..9dd60b940ef4 100644 --- a/drivers/thermal/imx8mm_thermal.c +++ b/drivers/thermal/imx8mm_thermal.c @@ -62,9 +62,15 @@ static int imx8mm_tmu_get_temp(void *data, int *temp) { struct tmu_sensor *sensor = data; struct imx8mm_tmu *tmu = sensor->priv; - u32 val; + bool ready; + unsigned long val; + + val = readl_relaxed(tmu->base + TRITSR); + ready = test_bit(probe_status_offset(1), &val); + if (!ready) + return -EAGAIN; - val = readl_relaxed(tmu->base + TRITSR) & TRITSR_TEMP0_VAL_MASK; + val = val & TRITSR_TEMP0_VAL_MASK; *temp = val * 1000; if (*temp < VER1_TEMP_LOW_LIMIT) return -EAGAIN;
Check if first measurement is still pending or if temperature is out of range. Return and try again later if that is the case. Fixes: 5eed800a6811 ("thermal: imx8mm: Add support for i.MX8MM thermal monitoring unit") Signed-off-by: Marcus Folkesson <marcus.folkesson@gmail.com> --- drivers/thermal/imx8mm_thermal.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-)