In case the regulator-always-on is present in regulator DT node, the regulator is always reconfigured to the voltage set in DT on probe, even if regulator_set_value() has been called before. Drop the property from AV96 U-Boot DT and enable the regulator manually in code, as the board already reconfigures the Buck3 regulator in code per PMIC NVM content instead.
Fixes: 0adf10a87b1 ("ARM: dts: stm32: Configure Buck3 voltage per PMIC NVM on Avenger96") Signed-off-by: Marek Vasut marex@denx.de --- Cc: Patrice Chotard patrice.chotard@foss.st.com Cc: Patrick Delaunay patrick.delaunay@foss.st.com --- arch/arm/dts/stm32mp15xx-dhcor-avenger96-u-boot.dtsi | 4 ++++ board/dhelectronics/dh_stm32mp1/board.c | 1 + 2 files changed, 5 insertions(+)
diff --git a/arch/arm/dts/stm32mp15xx-dhcor-avenger96-u-boot.dtsi b/arch/arm/dts/stm32mp15xx-dhcor-avenger96-u-boot.dtsi index 5bed53e3fdb..b6fceb9ad58 100644 --- a/arch/arm/dts/stm32mp15xx-dhcor-avenger96-u-boot.dtsi +++ b/arch/arm/dts/stm32mp15xx-dhcor-avenger96-u-boot.dtsi @@ -102,6 +102,10 @@ hnp-srp-disable; };
+&vdd { + /delete-property/ regulator-always-on; +}; + &vdd_io { u-boot,dm-spl; }; diff --git a/board/dhelectronics/dh_stm32mp1/board.c b/board/dhelectronics/dh_stm32mp1/board.c index 9188f5381eb..b0284609183 100644 --- a/board/dhelectronics/dh_stm32mp1/board.c +++ b/board/dhelectronics/dh_stm32mp1/board.c @@ -595,6 +595,7 @@ static void board_init_regulator_av96(void)
/* Adjust Buck3 per preconfigured PMIC voltage from NVM. */ regulator_set_value(rdev, uv); + regulator_set_enable(rdev, true); }
static void board_init_regulator(void)