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| author | Eddie Huang <eddie.huang@mediatek.com> | 2016-02-19 07:00:43 +0100 |
|---|---|---|
| committer | Matthias Brugger <matthias.bgg@gmail.com> | 2016-02-19 11:05:09 +0100 |
| commit | 3ea064b1e5adc263893ffdc3a11891c6d00d5e49 (patch) | |
| tree | b7330e8926f345744d3565e3353bc53051c470ec /arch/arm64/boot/dts/mediatek/mt8173-evb.dts | |
| parent | dts: arm64: Add EFUSE device node (diff) | |
| download | linux-3ea064b1e5adc263893ffdc3a11891c6d00d5e49.tar.xz linux-3ea064b1e5adc263893ffdc3a11891c6d00d5e49.zip | |
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>
Diffstat (limited to 'arch/arm64/boot/dts/mediatek/mt8173-evb.dts')
| -rw-r--r-- | arch/arm64/boot/dts/mediatek/mt8173-evb.dts | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/arm64/boot/dts/mediatek/mt8173-evb.dts b/arch/arm64/boot/dts/mediatek/mt8173-evb.dts index e427f04a9f45..7453a47b3047 100644 --- a/arch/arm64/boot/dts/mediatek/mt8173-evb.dts +++ b/arch/arm64/boot/dts/mediatek/mt8173-evb.dts @@ -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>; |