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arm64: dts: rockchip: support syr827 regulator on rk1808 evb

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syr827 use for rk1808 NPU power suppply. The default voltage is 1.0v,
we need to set it to 0.85v when board boot up.

Change-Id: Id4f0c400b931d0f97801b9a70760d9ebd351ce4e
Signed-off-by: Lin Huang <hl@rock-chips.com>
This commit is contained in:
Lin Huang 2018-09-12 18:00:22 +08:00 committed by Tao Huang
parent d3b277129e
commit 3accb95349
2 changed files with 32 additions and 0 deletions
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9
arch/arm64/boot/dts/rockchip/rk1808-evb-v10.dts
View File

@ -152,6 +152,15 @@ &vad {
#sound-dai-cells = <0>;
};
/*
* set max voltage to 850mv to fit for npu power supply request,
* we can change max voltage when we get more imformation.
*/
&vdd_npu {
regulator-min-microvolt = <850000>;
regulator-max-microvolt = <850000>;
};
&vop_lite {
status = "okay";
};

23
arch/arm64/boot/dts/rockchip/rk1808-evb.dtsi
View File

@ -212,6 +212,24 @@ &emmc {
&i2c0 {
status = "okay";
vdd_npu: syr837@40 {
compatible = "silergy,syr827";
reg = <0x40>;
vin-supply = <&vcc5v0_sys>;
regulator-compatible = "fan53555-reg";
pinctrl-0 = <&vsel_gpio>;
vsel-gpios = <&gpio0 5 GPIO_ACTIVE_HIGH>;
regulator-name = "vdd_npu";
regulator-min-microvolt = <712500>;
regulator-max-microvolt = <1500000>;
regulator-ramp-delay = <1000>;
fcs,suspend-voltage-selector = <1>;
regulator-boot-on;
regulator-state-mem {
regulator-off-in-suspend;
};
};
rk809: pmic@20 {
compatible = "rockchip,rk809";
reg = <0x20>;
@ -585,6 +603,11 @@ soc_slppin_rst: soc_slppin_rst {
rockchip,pins =
<0 RK_PA4 2 &pcfg_pull_none>;
};
vsel_gpio: vsel-gpio {
rockchip,pins =
<0 RK_PA5 0 &pcfg_pull_down>;
};
};
sdio-pwrseq {