From: Patrick Rudolph <[email protected]>
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 <[email protected]>
Signed-off-by: Naresh Solanki <[email protected]>
---
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 bc88a40a88d4..830a1c4cd705 100644
--- a/drivers/regulator/max5970-regulator.c
+++ b/drivers/regulator/max5970-regulator.c
@@ -392,7 +392,7 @@ 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;
}
base-commit: 861c0981648f5b64c86fd028ee622096eb7af05a
--
2.42.0
On Tue, 30 Jan 2024 20:32:56 +0530, Naresh Solanki wrote:
> 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.
>
> [...]
Applied to
https://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator.git for-next
Thanks!
[1/1] regulator (max5970): Fix IRQ handler
commit: a3fa9838e8140584a6f338e8516f2b05d3bea812
All being well this means that it will be integrated into the linux-next
tree (usually sometime in the next 24 hours) and sent to Linus during
the next merge window (or sooner if it is a bug fix), however if
problems are discovered then the patch may be dropped or reverted.
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Thanks,
Mark