Re: [PATCH AUTOSEL 5.11 26/52] clk: qcom: gdsc: Implement NO_RET_PERIPH flag

[Sasha Levin]

On Tue, Mar 02, 2021 at 03:02:25PM -0800, Stephen Boyd wrote:
> Quoting Sasha Levin (2021-03-02 03:55:07)
> > From: AngeloGioacchino Del Regno <angelogioacchino.delregno@xxxxxxxxxxxxxx>
> >
> > [ Upstream commit 785c02eb35009a4be6dbc68f4f7d916e90b7177d ]
> >
> > In some rare occasions, we want to only set the RETAIN_MEM bit, but
> > not the RETAIN_PERIPH one: this is seen on at least SDM630/636/660's
> > GPU-GX GDSC, where unsetting and setting back the RETAIN_PERIPH bit
> > will generate chaos and panics during GPU suspend time (mainly, the
> > chaos is unaligned access).
> >
> > For this reason, introduce a new NO_RET_PERIPH flag to the GDSC
> > driver to address this corner case.
>
> Is there a patch that's going to use this in stable trees? On its own
> this patch doesn't make sense to backport.

Right, I'll also grab a59c16c80bd7 ("clk: qcom: gpucc-msm8998: Add
resets, cxc, fix flags on gpu_gx_gdsc") for 5.10 and 5.11. Thanks!

--
Thanks,
Sasha