diff options
| author | Amit Kucheria <amit.kucheria@linaro.org> | 2020-03-12 18:07:03 +0530 |
|---|---|---|
| committer | Daniel Lezcano <daniel.lezcano@linaro.org> | 2020-03-20 12:17:48 +0100 |
| commit | d22066c1afcda84306c96483357b8477b088ed30 (patch) | |
| tree | 64afaa4a5d6475efbdf00e8960c60a06c23b6aca /drivers/thermal/qcom/tsens-v2.c | |
| parent | 79125e03dbfc7148361787783c8a82a7ed60c718 (diff) | |
drivers: thermal: tsens: Add watchdog support
TSENS IP v2.3 onwards adds support for a watchdog to detect if the TSENS
HW FSM is stuck. Add support to detect and restart the FSM in the
driver. The watchdog is configured by the bootloader, we just enable the
watchdog bark as a debug feature in the kernel.
Signed-off-by: Amit Kucheria <amit.kucheria@linaro.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/a314747664a065db592ad77da7beae68128a5b6e.1584015867.git.amit.kucheria@linaro.org
Diffstat (limited to 'drivers/thermal/qcom/tsens-v2.c')
| -rw-r--r-- | drivers/thermal/qcom/tsens-v2.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/thermal/qcom/tsens-v2.c b/drivers/thermal/qcom/tsens-v2.c index ce5ef0055d13..b293ed32174b 100644 --- a/drivers/thermal/qcom/tsens-v2.c +++ b/drivers/thermal/qcom/tsens-v2.c @@ -24,6 +24,7 @@ #define TM_Sn_CRITICAL_THRESHOLD_OFF 0x0060 #define TM_Sn_STATUS_OFF 0x00a0 #define TM_TRDY_OFF 0x00e4 +#define TM_WDOG_LOG_OFF 0x013c /* v2.x: 8996, 8998, sdm845 */ @@ -66,6 +67,15 @@ static const struct reg_field tsens_v2_regfields[MAX_REGFIELDS] = { REG_FIELD_SPLIT_BITS_0_15(CRIT_INT_CLEAR, TM_CRITICAL_INT_CLEAR_OFF), REG_FIELD_SPLIT_BITS_0_15(CRIT_INT_MASK, TM_CRITICAL_INT_MASK_OFF), + /* WATCHDOG on v2.3 or later */ + [WDOG_BARK_STATUS] = REG_FIELD(TM_CRITICAL_INT_STATUS_OFF, 31, 31), + [WDOG_BARK_CLEAR] = REG_FIELD(TM_CRITICAL_INT_CLEAR_OFF, 31, 31), + [WDOG_BARK_MASK] = REG_FIELD(TM_CRITICAL_INT_MASK_OFF, 31, 31), + [CC_MON_STATUS] = REG_FIELD(TM_CRITICAL_INT_STATUS_OFF, 30, 30), + [CC_MON_CLEAR] = REG_FIELD(TM_CRITICAL_INT_CLEAR_OFF, 30, 30), + [CC_MON_MASK] = REG_FIELD(TM_CRITICAL_INT_MASK_OFF, 30, 30), + [WDOG_BARK_COUNT] = REG_FIELD(TM_WDOG_LOG_OFF, 0, 7), + /* Sn_STATUS */ REG_FIELD_FOR_EACH_SENSOR16(LAST_TEMP, TM_Sn_STATUS_OFF, 0, 11), REG_FIELD_FOR_EACH_SENSOR16(VALID, TM_Sn_STATUS_OFF, 21, 21), |