From: Nicolas Ferre <nicolas.ferre@atmel.com>
Date: Sat, 15 May 2010 16:32:31 +0000 (-0400)
Subject: mmc: at91_mci: modify cache flush routines
X-Git-Tag: firefly_0821_release~9833^2~2153
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=bdef2fe88b1e4bde7458aedd207929ce3f9d66ee;p=firefly-linux-kernel-4.4.55.git

mmc: at91_mci: modify cache flush routines

As we were using an internal dma flushing routine, this patch changes to
the DMA API flush_kernel_dcache_page().  Driver is able to compile now.

[akpm@linux-foundation.org: flush_kernel_dcache_page() comes before kunmap_atomic()]
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Cc: James Bottomley <James.Bottomley@HansenPartnership.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

diff --git a/drivers/mmc/host/at91_mci.c b/drivers/mmc/host/at91_mci.c
index a6dd7da37357..336d9f553f3e 100644
--- a/drivers/mmc/host/at91_mci.c
+++ b/drivers/mmc/host/at91_mci.c
@@ -314,8 +314,8 @@ static void at91_mci_post_dma_read(struct at91mci_host *host)
 			dmabuf = (unsigned *)tmpv;
 		}
 
+		flush_kernel_dcache_page(sg_page(sg));
 		kunmap_atomic(sgbuffer, KM_BIO_SRC_IRQ);
-		dmac_flush_range((void *)sgbuffer, ((void *)sgbuffer) + amount);
 		data->bytes_xfered += amount;
 		if (size == 0)
 			break;