mmc: dw_mmc-rockchip: Just set default sample value for legacy mode

.set_ios() is called from .resume() as well. For SDIO device which sets
keep-power-in-suspend, nothing should be changed after resuming, as well
as sample tuning value, since this value is tuned already. So we should
not overwrite it with the default value.

Signed-off-by: Shawn Lin <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Ulf Hansson <[e-mail]>

drivers/mmc/host/dw_mmc-rockchip.c

···
 	}
 
 	/* Make sure we use phases which we can enumerate with */
-	if (!IS_ERR(priv->sample_clk))
+	if (!IS_ERR(priv->sample_clk) && ios->timing <= MMC_TIMING_SD_HS)
 		clk_set_phase(priv->sample_clk, priv->default_sample_phase);
 
 	/*