Merge tag 'pwm/for-6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm

Pull pwm updates from Thierry Reding:
 "Various changes across the board, mostly improvements and cleanups"

* tag 'pwm/for-6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm: (42 commits)
  pwm: pca9685: Convert to i2c's .probe_new()
  pwm: sun4i: Propagate errors in .get_state() to the caller
  pwm: Handle .get_state() failures
  pwm: sprd: Propagate errors in .get_state() to the caller
  pwm: rockchip: Propagate errors in .get_state() to the caller
  pwm: mtk-disp: Propagate errors in .get_state() to the caller
  pwm: imx27: Propagate errors in .get_state() to the caller
  pwm: cros-ec: Propagate errors in .get_state() to the caller
  pwm: crc: Propagate errors in .get_state() to the caller
  leds: qcom-lpg: Propagate errors in .get_state() to the caller
  drm/bridge: ti-sn65dsi86: Propagate errors in .get_state() to the caller
  pwm/tracing: Also record trace events for failed API calls
  pwm: Make .get_state() callback return an error code
  pwm: pxa: Enable for MMP platform
  pwm: pxa: Add reference manual link and limitations
  pwm: pxa: Use abrupt shutdown mode
  pwm: pxa: Remove clk enable/disable from pxa_pwm_config
  pwm: pxa: Set duty cycle to 0 when disabling PWM
  pwm: pxa: Remove pxa_pwm_enable/disable
  pwm: mediatek: Add support for MT7986
  ...

2 files changed, 12 insertions, 12 deletions

diff --git a/include/linux/pwm.h b/include/linux/pwm.h
index bba492eea96c..161e91167b9c 100644
--- a/include/linux/pwm.h
+++ b/include/linux/pwm.h
@@ -276,8 +276,8 @@ struct pwm_ops {
 		       struct pwm_capture *result, unsigned long timeout);
 	int (*apply)(struct pwm_chip *chip, struct pwm_device *pwm,
 		     const struct pwm_state *state);
-	void (*get_state)(struct pwm_chip *chip, struct pwm_device *pwm,
-			  struct pwm_state *state);
+	int (*get_state)(struct pwm_chip *chip, struct pwm_device *pwm,
+			 struct pwm_state *state);
 	struct module *owner;
 };
 
diff --git a/include/trace/events/pwm.h b/include/trace/events/pwm.h
index cf243de41cc8..12b35e4ff917 100644
--- a/include/trace/events/pwm.h
+++ b/include/trace/events/pwm.h
@@ -10,9 +10,9 @@
 
 DECLARE_EVENT_CLASS(pwm,
 
-	TP_PROTO(struct pwm_device *pwm, const struct pwm_state *state),
+	TP_PROTO(struct pwm_device *pwm, const struct pwm_state *state, int err),
 
-	TP_ARGS(pwm, state),
+	TP_ARGS(pwm, state, err),
 
 	TP_STRUCT__entry(
 		__field(struct pwm_device *, pwm)
@@ -20,6 +20,7 @@ DECLARE_EVENT_CLASS(pwm,
 		__field(u64, duty_cycle)
 		__field(enum pwm_polarity, polarity)
 		__field(bool, enabled)
+		__field(int, err)
 	),
 
 	TP_fast_assign(
@@ -28,28 +29,27 @@ DECLARE_EVENT_CLASS(pwm,
 		__entry->duty_cycle = state->duty_cycle;
 		__entry->polarity = state->polarity;
 		__entry->enabled = state->enabled;
+		__entry->err = err;
 	),
 
-	TP_printk("%p: period=%llu duty_cycle=%llu polarity=%d enabled=%d",
+	TP_printk("%p: period=%llu duty_cycle=%llu polarity=%d enabled=%d err=%d",
 		  __entry->pwm, __entry->period, __entry->duty_cycle,
-		  __entry->polarity, __entry->enabled)
+		  __entry->polarity, __entry->enabled, __entry->err)
 
 );
 
 DEFINE_EVENT(pwm, pwm_apply,
 
-	TP_PROTO(struct pwm_device *pwm, const struct pwm_state *state),
-
-	TP_ARGS(pwm, state)
+	TP_PROTO(struct pwm_device *pwm, const struct pwm_state *state, int err),
 
+	TP_ARGS(pwm, state, err)
 );
 
 DEFINE_EVENT(pwm, pwm_get,
 
-	TP_PROTO(struct pwm_device *pwm, const struct pwm_state *state),
-
-	TP_ARGS(pwm, state)
+	TP_PROTO(struct pwm_device *pwm, const struct pwm_state *state, int err),
 
+	TP_ARGS(pwm, state, err)
 );
 
 #endif /* _TRACE_PWM_H */