This is a note to let you know that I've just added the patch titled
regulator: rk808: fix LDO range on RK806
to the 6.7-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
regulator-rk808-fix-ldo-range-on-rk806.patch
and it can be found in the queue-6.7 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 8887a7ff4ee0d212293e66245f3bc85e9bff0d84
Author: Quentin Schulz <quentin.schulz@xxxxxxxxxxxxxxxxxxxxx>
Date: Fri Feb 23 14:11:23 2024 +0100
regulator: rk808: fix LDO range on RK806
[ Upstream commit 6717ff5533f332ef7294655629b8fa5fb8b132de ]
The linear ranges aren't really matching what they should be. Indeed,
the range is inclusive of the min value, so it makes sense the previous
range does NOT include the max step value representing the min value of
the range in question.
Since 3.4V is represented by the decimal value 232, the previous range
max step value should be 231 and not 232.
No expected change in behavior since 3.4V was mapped with step 232 from
the first range but is now mapped with step 232 from the second range.
While at it, remove the incorrect comment from the second range.
Fixes: f991a220a447 ("regulator: rk808: add rk806 support")
Cc: Quentin Schulz <foss+kernel@xxxxxxxxx>
Signed-off-by: Quentin Schulz <quentin.schulz@xxxxxxxxxxxxxxxxxxxxx>
Link: https://msgid.link/r/20240223-rk806-regulator-ranges-v1-2-3904ab70d250@xxxxxxxxxxxxxxxxxxxxx
Signed-off-by: Mark Brown <broonie@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/regulator/rk808-regulator.c b/drivers/regulator/rk808-regulator.c
index bfab5468cc54c..d89ae7f16d7a0 100644
--- a/drivers/regulator/rk808-regulator.c
+++ b/drivers/regulator/rk808-regulator.c
@@ -1023,8 +1023,8 @@ static const struct linear_range rk806_buck_voltage_ranges[] = {
};
static const struct linear_range rk806_ldo_voltage_ranges[] = {
- REGULATOR_LINEAR_RANGE(500000, 0, 232, 12500), /* 500mV ~ 3400mV */
- REGULATOR_LINEAR_RANGE(3400000, 233, 255, 0), /* 500mV ~ 3400mV */
+ REGULATOR_LINEAR_RANGE(500000, 0, 231, 12500), /* 500mV ~ 3400mV */
+ REGULATOR_LINEAR_RANGE(3400000, 232, 255, 0),
};
static const struct regulator_desc rk806_reg[] = {
