From: Patrick Rudolph <patrick.rudolph@xxxxxxxxxxxxx> [ Upstream commit a3fa9838e8140584a6f338e8516f2b05d3bea812 ] The max5970 datasheet gives the impression that IRQ status bits must be cleared by writing a one to set bits, as those are marked with 'R/C', however tests showed that a zero must be written. Fixes an IRQ storm as the interrupt handler actually clears the IRQ status bits. Signed-off-by: Patrick Rudolph <patrick.rudolph@xxxxxxxxxxxxx> Signed-off-by: Naresh Solanki <naresh.solanki@xxxxxxxxxxxxx> Link: https://msgid.link/r/20240130150257.3643657-1-naresh.solanki@xxxxxxxxxxxxx Signed-off-by: Mark Brown <broonie@xxxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> --- drivers/regulator/max5970-regulator.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/regulator/max5970-regulator.c b/drivers/regulator/max5970-regulator.c index b56a174cde3d..5c2d49ae332f 100644 --- a/drivers/regulator/max5970-regulator.c +++ b/drivers/regulator/max5970-regulator.c @@ -265,7 +265,7 @@ static int max597x_regmap_read_clear(struct regmap *map, unsigned int reg, return ret; if (*val) - return regmap_write(map, reg, *val); + return regmap_write(map, reg, 0); return 0; } -- 2.43.0
