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| author | Patrick Rudolph <patrick.rudolph@9elements.com> | 2024-01-30 18:02:56 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-03-01 15:34:51 +0300 |
| commit | f7d799076a55aed4accd134442a33e4fef7c2757 (patch) | |
| tree | f053471993c4e879e9db8a17c0eac0d4e68f90de /drivers/regulator | |
| parent | 04d46a95642e6d407af4783a9b9fe16888eb23af (diff) | |
| download | linux-f7d799076a55aed4accd134442a33e4fef7c2757.tar.xz | |
regulator (max5970): Fix IRQ handler
[ 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>
Diffstat (limited to 'drivers/regulator')
| -rw-r--r-- | drivers/regulator/max5970-regulator.c | 2 |
1 files changed, 1 insertions, 1 deletions
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; } |