[PATCH] clk: sunxi: sun9i-mmc: Implement reset callback for reset controls

Maxime Ripard maxime.ripard at free-electrons.com
Tue Dec 19 00:32:28 PST 2017


On Mon, Dec 18, 2017 at 01:07:09PM -0800, Stephen Boyd wrote:
> On 12/18, Chen-Yu Tsai wrote:
> > Our MMC host driver now issues a reset, instead of just deasserting
> > the reset control, since commit c34eda69ad4c ("mmc: sunxi: Reset the
> > device at probe time"). The sun9i-mmc clock driver does not support
> > this, and will fail, which results in MMC not probing.
> > 
> > This patch implements the reset callback by asserting the reset control,
> > then deasserting it after a small delay.
> > 
> > Fixes: 7a6fca879f59 ("clk: sunxi: Add driver for A80 MMC config clocks/resets")
> > Cc: <stable at vger.kernel.org> # 4.14.x
> > Signed-off-by: Chen-Yu Tsai <wens at csie.org>
> > ---
> 
> Did you want us to pick this up into clk-fixes? It seems to be
> causing MMC to not work for some time? That sounds annoying
> enough.

That would be great, thanks!
Maxime

-- 
Maxime Ripard, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com
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