Aw: Re: [PATCH] soc: mediatek: mmsys: fix HDMI output on mt7623/bananapi-r2

[Dafna Hirschfeld]

Hi,

On 12.07.21 19:16, Frank Wunderlich wrote:
> Hi,
> 
> it turns out that problem is the read+or of the new value
> 
> i reverted my patch and changed
> 
> reg = readl_relaxed(mmsys->regs + routes[i].addr) | routes[i].val;
> writel_relaxed(reg, mmsys->regs + routes[i].addr);
> 
> to
> 
> writel_relaxed(routes[i].val, mmsys->regs + routes[i].addr);
> 
> and it works too, but maybe it breaks other platforms

Interesting, I can test if it fix that similar bug on mt8173 when resume from suspend.

Thanks,
Dafna

> 
> regards Frank
>