This is a note to let you know that I've just added the patch titled
regulator: axp20x: AXP717: set ramp_delay
to the 6.12-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-axp20x-axp717-set-ramp_delay.patch
and it can be found in the queue-6.12 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 87e8c809c47a12c4e90e2a65bc2fddc1f83e8aae
Author: Philippe Simons <simons.philippe@xxxxxxxxx>
Date: Sun Dec 8 13:43:08 2024 +0100
regulator: axp20x: AXP717: set ramp_delay
[ Upstream commit f07ae52f5cf6a5584fdf7c8c652f027d90bc8b74 ]
AXP717 datasheet says that regulator ramp delay is 15.625 us/step,
which is 10mV in our case.
Add a AXP_DESC_RANGES_DELAY macro and update AXP_DESC_RANGES macro to
expand to AXP_DESC_RANGES_DELAY with ramp_delay = 0
For DCDC4, steps is 100mv
Add a AXP_DESC_DELAY macro and update AXP_DESC macro to
expand to AXP_DESC_DELAY with ramp_delay = 0
This patch fix crashes when using CPU DVFS.
Signed-off-by: Philippe Simons <simons.philippe@xxxxxxxxx>
Tested-by: Hironori KIKUCHI <kikuchan98@xxxxxxxxx>
Tested-by: Chris Morgan <macromorgan@xxxxxxxxxxx>
Reviewed-by: Chen-Yu Tsai <wens@xxxxxxxx>
Fixes: d2ac3df75c3a ("regulator: axp20x: add support for the AXP717")
Link: https://patch.msgid.link/20241208124308.5630-1-simons.philippe@xxxxxxxxx
Signed-off-by: Mark Brown <broonie@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/regulator/axp20x-regulator.c b/drivers/regulator/axp20x-regulator.c
index a8e91d9d028b..945d2917b91b 100644
--- a/drivers/regulator/axp20x-regulator.c
+++ b/drivers/regulator/axp20x-regulator.c
@@ -371,8 +371,8 @@
.ops = &axp20x_ops, \
}
-#define AXP_DESC(_family, _id, _match, _supply, _min, _max, _step, _vreg, \
- _vmask, _ereg, _emask) \
+#define AXP_DESC_DELAY(_family, _id, _match, _supply, _min, _max, _step, _vreg, \
+ _vmask, _ereg, _emask, _ramp_delay) \
[_family##_##_id] = { \
.name = (_match), \
.supply_name = (_supply), \
@@ -388,9 +388,15 @@
.vsel_mask = (_vmask), \
.enable_reg = (_ereg), \
.enable_mask = (_emask), \
+ .ramp_delay = (_ramp_delay), \
.ops = &axp20x_ops, \
}
+#define AXP_DESC(_family, _id, _match, _supply, _min, _max, _step, _vreg, \
+ _vmask, _ereg, _emask) \
+ AXP_DESC_DELAY(_family, _id, _match, _supply, _min, _max, _step, _vreg, \
+ _vmask, _ereg, _emask, 0)
+
#define AXP_DESC_SW(_family, _id, _match, _supply, _ereg, _emask) \
[_family##_##_id] = { \
.name = (_match), \
@@ -419,8 +425,8 @@
.ops = &axp20x_ops_fixed \
}
-#define AXP_DESC_RANGES(_family, _id, _match, _supply, _ranges, _n_voltages, \
- _vreg, _vmask, _ereg, _emask) \
+#define AXP_DESC_RANGES_DELAY(_family, _id, _match, _supply, _ranges, _n_voltages, \
+ _vreg, _vmask, _ereg, _emask, _ramp_delay) \
[_family##_##_id] = { \
.name = (_match), \
.supply_name = (_supply), \
@@ -436,9 +442,15 @@
.enable_mask = (_emask), \
.linear_ranges = (_ranges), \
.n_linear_ranges = ARRAY_SIZE(_ranges), \
+ .ramp_delay = (_ramp_delay), \
.ops = &axp20x_ops_range, \
}
+#define AXP_DESC_RANGES(_family, _id, _match, _supply, _ranges, _n_voltages, \
+ _vreg, _vmask, _ereg, _emask) \
+ AXP_DESC_RANGES_DELAY(_family, _id, _match, _supply, _ranges, \
+ _n_voltages, _vreg, _vmask, _ereg, _emask, 0)
+
static const int axp209_dcdc2_ldo3_slew_rates[] = {
1600,
800,
@@ -781,21 +793,21 @@ static const struct linear_range axp717_dcdc3_ranges[] = {
};
static const struct regulator_desc axp717_regulators[] = {
- AXP_DESC_RANGES(AXP717, DCDC1, "dcdc1", "vin1",
+ AXP_DESC_RANGES_DELAY(AXP717, DCDC1, "dcdc1", "vin1",
axp717_dcdc1_ranges, AXP717_DCDC1_NUM_VOLTAGES,
AXP717_DCDC1_CONTROL, AXP717_DCDC_V_OUT_MASK,
- AXP717_DCDC_OUTPUT_CONTROL, BIT(0)),
- AXP_DESC_RANGES(AXP717, DCDC2, "dcdc2", "vin2",
+ AXP717_DCDC_OUTPUT_CONTROL, BIT(0), 640),
+ AXP_DESC_RANGES_DELAY(AXP717, DCDC2, "dcdc2", "vin2",
axp717_dcdc2_ranges, AXP717_DCDC2_NUM_VOLTAGES,
AXP717_DCDC2_CONTROL, AXP717_DCDC_V_OUT_MASK,
- AXP717_DCDC_OUTPUT_CONTROL, BIT(1)),
- AXP_DESC_RANGES(AXP717, DCDC3, "dcdc3", "vin3",
+ AXP717_DCDC_OUTPUT_CONTROL, BIT(1), 640),
+ AXP_DESC_RANGES_DELAY(AXP717, DCDC3, "dcdc3", "vin3",
axp717_dcdc3_ranges, AXP717_DCDC3_NUM_VOLTAGES,
AXP717_DCDC3_CONTROL, AXP717_DCDC_V_OUT_MASK,
- AXP717_DCDC_OUTPUT_CONTROL, BIT(2)),
- AXP_DESC(AXP717, DCDC4, "dcdc4", "vin4", 1000, 3700, 100,
+ AXP717_DCDC_OUTPUT_CONTROL, BIT(2), 640),
+ AXP_DESC_DELAY(AXP717, DCDC4, "dcdc4", "vin4", 1000, 3700, 100,
AXP717_DCDC4_CONTROL, AXP717_DCDC_V_OUT_MASK,
- AXP717_DCDC_OUTPUT_CONTROL, BIT(3)),
+ AXP717_DCDC_OUTPUT_CONTROL, BIT(3), 6400),
AXP_DESC(AXP717, ALDO1, "aldo1", "aldoin", 500, 3500, 100,
AXP717_ALDO1_CONTROL, AXP717_LDO_V_OUT_MASK,
AXP717_LDO0_OUTPUT_CONTROL, BIT(0)),
