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

[Philipp Zabel]

On Mon, 2017-12-18 at 11:57 +0800, 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>

Acked-by: Philipp Zabel <p.zabel at pengutronix.de>

regards
Philipp