| Message ID | 1417690075-13483-4-git-send-email-k.kozlowski@samsung.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
diff --git a/arch/arm/boot/dts/exynos5420-pinctrl.dtsi b/arch/arm/boot/dts/exynos5420-pinctrl.dtsi index ba686e40eac7..c0ca0da36ade 100644 --- a/arch/arm/boot/dts/exynos5420-pinctrl.dtsi +++ b/arch/arm/boot/dts/exynos5420-pinctrl.dtsi @@ -696,6 +696,9 @@ }; pinctrl@03860000 { + clocks = <&clock CLK_MAU_EPLL>; + clock-names = "block"; + gpz: gpz { gpio-controller; #gpio-cells = <2>;
The pinctrl for audio subsystem needs 'mau_epll' clock to be enabled in order to properly access memory during GPIO setup. After introducing runtime PM to pl330 DMA driver the 'mau_epll' was gated, because the "amba" clock was disabled and there were no more users of mau_epll. This lead to system hang just before probing i2s0 because samsung_pinmux_setup() tried to access memory from audss block which was gated. Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> --- arch/arm/boot/dts/exynos5420-pinctrl.dtsi | 3 +++ 1 file changed, 3 insertions(+)