Re: [PATCH V3 6/7] backlight: qcom-wled: add support for short circuit handling

Handle the short circuit interrupt and check if the short circuit
interrupt is valid. Re-enable the module to check if it goes
away. Disable the module altogether if the short circuit event
persists.

Signed-off-by: Kiran Gunda <redacted>
---
 drivers/video/backlight/qcom-wled.c | 130 +++++++++++++++++++++++++++++++++++-
 1 file changed, 127 insertions(+), 3 deletions(-)

diff --git a/drivers/video/backlight/qcom-wled.c b/drivers/video/backlight/qcom-wled.c

 struct wled {
 	const char *name;
 	struct device *dev;
 	struct regmap *regmap;
+	struct mutex lock;	/* Lock to avoid race from ISR */
+	ktime_t last_short_event;
 	u16 ctrl_addr;
 	u16 sink_addr;
 	u32 brightness;
 	u32 max_brightness;
+	u32 short_count;
 	const int *version;
+	bool disabled_by_short;
+	bool has_short_detect;