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ARM64: dts: Mediatek: mt8173-evb: fix access MMC fail issue 

MT8173 E1 chip has one bug that if turn off USB power domain, vcore
power will also be off, thus cause modules using vcore power domain
fail, like MMC. The E1 chip only found on MT8173-evb board and this
board only has E1 chip, so implement this as a board specific
workaround.

Pwrapper use vcore power, so add pwrapper using USB power domain to
keep USB power domain not to zero and disabled.

Signed-off-by: Eddie Huang <eddie.huang@mediatek.com>
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
This commit is contained in:
Eddie Huang 2016-02-19 14:00:43 +08:00 committed by Matthias Brugger
parent 93e9f5ee1e
commit 3ea064b1e5
1 changed files with 3 additions and 0 deletions
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3
arch/arm64/boot/dts/mediatek/mt8173-evb.dts
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@ -214,6 +214,9 @@
};
&pwrap {
/* Only MT8173 E1 needs USB power domain */
power-domains = <&scpsys MT8173_POWER_DOMAIN_USB>;
pmic: mt6397 {
compatible = "mediatek,mt6397";
interrupt-parent = <&pio>;