mainline/master boot bisection: v4.15-rc3 on peach-pi #3228-staging

[linux@armlinux.org.uk (Russell King - ARM Linux)]

On Mon, Dec 11, 2017 at 11:54:48PM +0100, Javier Martinez Canillas wrote:
> So I gave a quick look to this, and at the very least there's a bug in
> the Exynos5800 Peach Pi DTS caused by commit 1cb686c08d12 ("ARM: dts:
> exynos: Add status property to Exynos 542x Mixer nodes").
> 
> I've posted a fix for that:
> 
> https://patchwork.kernel.org/patch/10105921/
> 
> I believe this could be also be the cause for the boot failure, since
> I see in the boot log that things start to go wrong after exynos-drm
> fails to bind the HDMI component:
> 
> [ 2.916347] exynos-drm exynos-drm: failed to bind 14530000.hdmi (ops
> 0xc1398690): -1

Umm, -1 ?  Looking that error code up in
include/uapi/asm-generic/errno-base.h says it's -EPERM.

I suspect that's someone just returning -1 because they're lazy...
which is real bad form and needs fixing.

-- 
RMK's Patch system: http://www.armlinux.org.uk/developer/patches/
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