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ARM: dts: marzen: Add SDHI0 VCCQ Regulator

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Add support for the on-board voltage regulator hooked up to GPIO3_20
on r8a7779 Marzen. The board schematics describes the regulator as U4
TPS2110A. Input wise, U4 has D0 fixed to ground, D1 tied to GPIO3_20
while IN1 is fixed to 3.3V and IN2 is fixed to 1.8V. OUT goes to the
pull-ups for the data pins of SDHI0.

Signed-off-by: Magnus Damm <damm+renesas@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
This commit is contained in:
Magnus Damm 2018-02-19 21:37:58 +09:00 committed by Simon Horman
parent 92bcfdb334
commit 56bac953b1
1 changed files with 14 additions and 0 deletions
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14
arch/arm/boot/dts/r8a7779-marzen.dts
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@ -42,6 +42,19 @@
regulator-always-on;
};
vccq_sdhi0: regulator-vccq-sdhi0 {
compatible = "regulator-gpio";
regulator-name = "SDHI0 VccQ";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <3300000>;
gpios = <&gpio3 20 GPIO_ACTIVE_HIGH>;
gpios-states = <1>;
states = <3300000 1
1800000 0>;
};
ethernet@18000000 {
compatible = "smsc,lan9220", "smsc,lan9115";
reg = <0x18000000 0x100>;
@ -243,6 +256,7 @@
pinctrl-names = "default";
vmmc-supply = <&fixedregulator3v3>;
vqmmc-supply = <&vccq_sdhi0>;
bus-width = <4>;
status = "okay";
};