@@ -107,6 +107,7 @@ static const struct reg_field tsens_v2_regfields[MAX_REGFIELDS] = {
static const struct tsens_ops ops_generic_v2 = {
.init = init_common,
.get_temp = get_temp_tsens_valid,
+ .resume = tsens_resume_common,
};
struct tsens_plat_data data_tsens_v2 = {
@@ -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;
@@ -634,6 +634,11 @@ void compute_intercept_slope(struct tsens_priv *priv, u32 *pt1, u32 *pt2, u32 mo
int init_common(struct tsens_priv *priv);
int get_temp_tsens_valid(const struct tsens_sensor *s, int *temp);
int get_temp_common(const struct tsens_sensor *s, int *temp);
+#ifdef CONFIG_SUSPEND
+int tsens_resume_common(struct tsens_priv *priv);
+#else
+#define tsens_resume_common NULL
+#endif
/* TSENS target */
extern struct tsens_plat_data data_8960;
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> --- V4 -> V5: Remove unused spinlock from tsens_reinit function. V3 -> V4: Make tsens_reinit function specific to tsens v2. Add NULL resume callback support for platform whose versions < ver_2_x in tsens ops. V2 -> V3: Remove suspend callback & interrupt enablement part from resume callback. V1 -> V2: Update commit text to explain the necessity of this patch. drivers/thermal/qcom/tsens-v2.c | 1 + drivers/thermal/qcom/tsens.c | 31 +++++++++++++++++++++++++++++++ drivers/thermal/qcom/tsens.h | 5 +++++ 3 files changed, 37 insertions(+)