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

Michael Turquette mturquette at baylibre.com
Tue Dec 19 11:51:26 PST 2017


Quoting Maxime Ripard (2017-12-19 00:32:28)
> 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!

Applied to clk-fixes.

Regards,
Mike

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



More information about the linux-arm-kernel mailing list