From: Huang, Tao <huangtao@rock-chips.com>
Date: Wed, 10 Dec 2014 11:24:11 +0000 (+0800)
Subject: mmc: rockchip: covert dsb() to dsb(sy)
X-Git-Tag: firefly_0821_release~4158^2~559
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=47b1e48e858f17a7d9d2cc57385b3a3a83d57462;p=firefly-linux-kernel-4.4.55.git

mmc: rockchip: covert dsb() to dsb(sy)
---

diff --git a/drivers/mmc/host/rk_sdmmc.c b/drivers/mmc/host/rk_sdmmc.c
index 83a00a984bd5..a61fadf2b066 100755
--- a/drivers/mmc/host/rk_sdmmc.c
+++ b/drivers/mmc/host/rk_sdmmc.c
@@ -1684,12 +1684,12 @@ static void dw_mci_hw_reset(struct mmc_host *mmc)
 	*/
 	mci_writel(slot->host, PWREN, 0x0);
 	mci_writel(slot->host, RST_N, 0x0);
-	dsb();
+	dsb(sy);
 	udelay(10); /* 10us for bad quality eMMc. */
 
 	mci_writel(slot->host, PWREN, 0x1);
 	mci_writel(slot->host, RST_N, 0x1);
-	dsb();
+	dsb(sy);
 	usleep_range(500, 1000); /* at least 500(> 200us) */
 }
 
diff --git a/include/linux/mmc/rk_mmc.h b/include/linux/mmc/rk_mmc.h
index a8127dda1f8c..1eb5d455ad88 100755
--- a/include/linux/mmc/rk_mmc.h
+++ b/include/linux/mmc/rk_mmc.h
@@ -293,7 +293,7 @@ struct dw_mci_board {
 	struct block_settings *blk_settings;
 };
 #define grf_writel(v, offset)   do \
-        { writel_relaxed(v, RK_GRF_VIRT + offset); dsb(); } \
+        { writel_relaxed(v, RK_GRF_VIRT + offset); dsb(sy); } \
                 while (0)
 
 #endif /* LINUX_MMC_DW_MMC_H */