Messages in this thread Patch in this message | | | From | Sasha Levin <> | Subject | [PATCH AUTOSEL 6.6 17/38] regulator (max5970): Fix IRQ handler | Date | Wed, 7 Feb 2024 16:23:03 -0500 |
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From: Patrick Rudolph <patrick.rudolph@9elements.com>
[ 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@9elements.com> Signed-off-by: Naresh Solanki <naresh.solanki@9elements.com> Link: https://msgid.link/r/20240130150257.3643657-1-naresh.solanki@9elements.com Signed-off-by: Mark Brown <broonie@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org> --- 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
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