diff options
| author | Priyansh Jain <quic_priyjain@quicinc.com> | 2024-03-28 10:32:30 +0530 |
|---|---|---|
| committer | Daniel Lezcano <daniel.lezcano@linaro.org> | 2024-04-23 12:40:29 +0200 |
| commit | 34b9a92b6850279145430af181d2d2dedb98cc76 (patch) | |
| tree | d0ce80cf66d9a8aaf4303fd61b93c519f9c1f04f /drivers/thermal/qcom/tsens.c | |
| parent | ff96922d33dfeb3cfe7c4fac051267155722c1ae (diff) | |
thermal/drivers/tsens: Add suspend to RAM support for tsens
As part of suspend to RAM, tsens hardware will be turned off.
While resume callback, re-initialize tsens hardware.
Signed-off-by: Priyansh Jain <quic_priyjain@quicinc.com>
Acked-by: Amit Kucheria <amitk@kernel.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20240328050230.31770-1-quic_priyjain@quicinc.com
Diffstat (limited to 'drivers/thermal/qcom/tsens.c')
| -rw-r--r-- | drivers/thermal/qcom/tsens.c | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/drivers/thermal/qcom/tsens.c b/drivers/thermal/qcom/tsens.c index 6d7c16ccb44d..1c9df4f84641 100644 --- a/drivers/thermal/qcom/tsens.c +++ b/drivers/thermal/qcom/tsens.c @@ -17,6 +17,7 @@ #include <linux/pm.h> #include <linux/regmap.h> #include <linux/slab.h> +#include <linux/suspend.h> #include <linux/thermal.h> #include "../thermal_hwmon.h" #include "tsens.h" @@ -1193,6 +1194,36 @@ static int tsens_register_irq(struct tsens_priv *priv, char *irqname, return ret; } +#ifdef CONFIG_SUSPEND +static int tsens_reinit(struct tsens_priv *priv) +{ + if (tsens_version(priv) >= VER_2_X) { + /* + * Re-enable the watchdog, unmask the bark. + * Disable cycle completion monitoring + */ + if (priv->feat->has_watchdog) { + regmap_field_write(priv->rf[WDOG_BARK_MASK], 0); + regmap_field_write(priv->rf[CC_MON_MASK], 1); + } + + /* Re-enable interrupts */ + tsens_enable_irq(priv); + } + + return 0; +} + +int tsens_resume_common(struct tsens_priv *priv) +{ + if (pm_suspend_target_state == PM_SUSPEND_MEM) + tsens_reinit(priv); + + return 0; +} + +#endif /* !CONFIG_SUSPEND */ + static int tsens_register(struct tsens_priv *priv) { int i, ret; |