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ARM: dts: Make DP a consumer of DISP1 power domain on Exynos5420
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Commit ea08de1 ("ARM: dts: Add DISP1 power domain for exynos5420")
added a device node for the Exynos5420 DISP1 power domain but dit not
make the DP controller a consumer of that power domain.

This causes an "Unhandled fault: imprecise external abort" error if the
exynos-dp driver tries to access the DP controller registers and the PD
was turned off. This lead to a kernel panic and a complete system hang.

Make the DP controller device node a consumer of the DISP1 power domain
to ensure that the PD is turned on when the exynos-dp driver is probed.

Fixes: ea08de1 ("ARM: dts: Add DISP1 power domain for exynos5420")
Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Signed-off-by: Kukjin Kim <kgene@kernel.org>
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Javier Martinez Canillas authored and Kukjin Kim committed May 8, 2015
1 parent b787f68 commit 0d74776
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1 change: 1 addition & 0 deletions arch/arm/boot/dts/exynos5420.dtsi
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Original file line number Diff line number Diff line change
Expand Up @@ -536,6 +536,7 @@
clock-names = "dp";
phys = <&dp_phy>;
phy-names = "dp";
power-domains = <&disp_pd>;
};

mipi_phy: video-phy@10040714 {
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