6.6-stable review patch. If anyone has any objections, please let me know.
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From: Chen-Yu Tsai wens@csie.org
[ Upstream commit 88828c7e940dd45d139ad4a39d702b23840a37c5 ]
On newer boards featuring the A523 SoC, the AXP323 (related to the AXP313) is paired with the AXP717 and serves as a secondary PMIC providing additional regulator outputs. However the MFD cells are all registered with PLATFORM_DEVID_NONE, which causes the regulator cells to conflict with each other.
Commit e37ec3218870 ("mfd: axp20x: Allow multiple regulators") attempted to fix this by switching to PLATFORM_DEVID_AUTO so that the device names would all be different, however that broke IIO channel mapping, which is also tied to the device names. As a result the change was later reverted.
Instead, here we attempt to make sure the AXP313/AXP323 regulator cell does not conflict by explicitly giving it an ID number. This was previously done for the AXP809+AXP806 pair used with the A80 SoC.
Signed-off-by: Chen-Yu Tsai wens@csie.org Link: https://lore.kernel.org/r/20250619173207.3367126-1-wens@kernel.org Signed-off-by: Lee Jones lee@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/mfd/axp20x.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/mfd/axp20x.c b/drivers/mfd/axp20x.c index 87603eeaa277..2b85da0fcf27 100644 --- a/drivers/mfd/axp20x.c +++ b/drivers/mfd/axp20x.c @@ -936,7 +936,8 @@ static const struct mfd_cell axp152_cells[] = { };
static struct mfd_cell axp313a_cells[] = { - MFD_CELL_NAME("axp20x-regulator"), + /* AXP323 is sometimes paired with AXP717 as sub-PMIC */ + MFD_CELL_BASIC("axp20x-regulator", NULL, NULL, 0, 1), MFD_CELL_RES("axp313a-pek", axp313a_pek_resources), };