From: Gregory CLEMENT Date: Tue, 29 Aug 2017 13:57:41 +0000 (+0200) Subject: arm64: dts: marvell: armada-3720-db: Add vmmc regulator for SD slot X-Git-Tag: v4.19~2159^2~5^2~19 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=c13604d9ddc24dd4e9b65cad2844b2b603391ac8;p=platform%2Fkernel%2Flinux-rpi.git arm64: dts: marvell: armada-3720-db: Add vmmc regulator for SD slot By adding this regulator, a proper reset is done during boot. Without this, the UHS failed to be detected after a warm reboot when the SD card remained in the slot, then it fallback to an HS. Note that the vmcc is supported by the xenon driver only with the following fix: "mmc: sdhci-xenon: add set_power callback". Signed-off-by: Gregory CLEMENT --- diff --git a/arch/arm64/boot/dts/marvell/armada-3720-db.dts b/arch/arm64/boot/dts/marvell/armada-3720-db.dts index 9df0f06..e6e0f38 100644 --- a/arch/arm64/boot/dts/marvell/armada-3720-db.dts +++ b/arch/arm64/boot/dts/marvell/armada-3720-db.dts @@ -94,6 +94,16 @@ 3300000 0x0>; enable-active-high; }; + + vcc_sd_reg2: regulator-vmcc { + compatible = "regulator-fixed"; + regulator-name = "vcc_sd2"; + regulator-min-microvolt = <3300000>; + regulator-max-microvolt = <3300000>; + regulator-boot-on; + enable-active-high; + gpio = <&gpio_exp 4 GPIO_ACTIVE_HIGH>; + }; }; /* Gigabit module on CON19(V2.0)/CON21(V1.4) */ @@ -179,6 +189,7 @@ bus-width = <4>; marvell,pad-type = "sd"; vqmmc-supply = <&vcc_sd_reg1>; + vmmc-supply = <&vcc_sd_reg2>; status = "okay"; };