Messages in this thread Patch in this message | | | From | Eddie Huang <> | Subject | [PATCH] soc: Mediatek: Enable SCPSYS power domain driver by default | Date | Fri, 13 Nov 2015 18:50:35 +0800 |
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If enable Mediatek 8173 SoC, it should also enable power domain driver. Otherwise access clk subsystem register will fail.
Signed-off-by: Eddie Huang <eddie.huang@mediatek.com>
--- MT8173 clk driver is enabled by default, but power domain driver is not. If MM subsystem power on, mm_sel topckgen mux is off, then access any MM subsystem register will cause system hang. Enable SCPSYS driver to make sure both MM subsystem power and mm_sel to on/off together to avoid system hang.
This patch fix current linux-next mt8173-evb boot to shell fail problem. --- drivers/soc/mediatek/Kconfig | 1 + 1 file changed, 1 insertion(+)
diff --git a/drivers/soc/mediatek/Kconfig b/drivers/soc/mediatek/Kconfig index 9d50682..0a4ea80 100644 --- a/drivers/soc/mediatek/Kconfig +++ b/drivers/soc/mediatek/Kconfig @@ -23,6 +23,7 @@ config MTK_PMIC_WRAP config MTK_SCPSYS bool "MediaTek SCPSYS Support" depends on ARCH_MEDIATEK || COMPILE_TEST + default ARM64 && ARCH_MEDIATEK select REGMAP select MTK_INFRACFG select PM_GENERIC_DOMAINS if PM -- 1.9.1
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