Current code just busy waits with nop for clock becoming stable, relaxing the cpu here improves readability and portability and also removes a unnecessary difference with the mtk-sd driver. Signed-off-by: Christian Lütke-Stetzkamp <christian@xxxxxxxx> --- drivers/staging/mt7621-mmc/sd.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/staging/mt7621-mmc/sd.c b/drivers/staging/mt7621-mmc/sd.c index 69c554b69566..d702d4d845d1 100644 --- a/drivers/staging/mt7621-mmc/sd.c +++ b/drivers/staging/mt7621-mmc/sd.c @@ -618,7 +618,7 @@ static void msdc_set_mclk(struct msdc_host *host, int ddr, unsigned int hz) /* wait clock stable */ while (!(sdr_read32(MSDC_CFG) & MSDC_CFG_CKSTB)) - ; + cpu_relax(); host->sclk = sclk; host->mclk = hz; -- 2.16.1 _______________________________________________ devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxx http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
