Linux kernels before 4.12-rc1 don't know about the AXP803 PMIC, so can't enable the MMC driver with the current DT anymore, because that now depends on this regulator. To restore compatiblity with older kernels (where MMC worked fine without explicit AXP support), restore the former fixed-regulator. This is no technical disadvantage, as the MMC power rail is actually VDD-SYS, which drives most of the rest of the board, so can't be turned off anyway. To underline this, this DCDC1 rail is marked as "regulator-always-on" in the DT.
This reverts Linux commit 3f241bfa60bdc9c4fde63fa6664a8ce00fd668c6. Author: Jagan Teki <[email protected]> Date: Sat Aug 12 11:10:02 2017 +0530 arm64: allwinner: a64: pine64: Use dcdc1 regulator for mmc0 Signed-off-by: Andre Przywara <[email protected]> --- arch/arm/dts/sun50i-a64-pine64.dts | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/arch/arm/dts/sun50i-a64-pine64.dts b/arch/arm/dts/sun50i-a64-pine64.dts index 604cdaedac..122b5d8e54 100644 --- a/arch/arm/dts/sun50i-a64-pine64.dts +++ b/arch/arm/dts/sun50i-a64-pine64.dts @@ -62,6 +62,13 @@ chosen { stdout-path = "serial0:115200n8"; }; + + reg_vcc3v3: vcc3v3 { + compatible = "regulator-fixed"; + regulator-name = "vcc3v3"; + regulator-min-microvolt = <3300000>; + regulator-max-microvolt = <3300000>; + }; }; &ehci0 { @@ -102,7 +109,7 @@ &mmc0 { pinctrl-names = "default"; pinctrl-0 = <&mmc0_pins>; - vmmc-supply = <®_dcdc1>; + vmmc-supply = <®_vcc3v3>; cd-gpios = <&pio 5 6 GPIO_ACTIVE_HIGH>; cd-inverted; disable-wp; -- 2.14.1 -- You received this message because you are subscribed to the Google Groups "linux-sunxi" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
