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From: Jarkko Nikula <jarkko.nikula@bitmer.com>
To: Chris Ball <cjb@laptop.org>
Cc: linux-mmc@vger.kernel.org, linux-omap@vger.kernel.org,
	Tony Lindgren <tony@atomide.com>,
	Dan Carpenter <dan.carpenter@oracle.com>,
	Aaro Koskinen <aaro.koskinen@iki.fi>,
	Jarkko Lavinen <j.lavinen@samsung.com>,
	Jarkko Nikula <jarkko.nikula@bitmer.com>
Subject: [PATCH 6/7] mmc: omap: Remove always set use_dma flag from struct mmc_omap_host
Date: Wed,  4 Dec 2013 21:14:13 +0000	[thread overview]
Message-ID: <1386191654-7686-7-git-send-email-jarkko.nikula@bitmer.com> (raw)
In-Reply-To: <1386191654-7686-1-git-send-email-jarkko.nikula@bitmer.com>

Because use_dma is set only in mmc_omap_probe and unset nowhere there is no
need to carry that flag in struct mmc_omap_host for mmc_omap_prepare_data
function.

Signed-off-by: Jarkko Nikula <jarkko.nikula@bitmer.com>
---
 drivers/mmc/host/omap.c | 15 +++++----------
 1 file changed, 5 insertions(+), 10 deletions(-)

diff --git a/drivers/mmc/host/omap.c b/drivers/mmc/host/omap.c
index e4c7a03..42175cd 100644
--- a/drivers/mmc/host/omap.c
+++ b/drivers/mmc/host/omap.c
@@ -152,7 +152,6 @@ struct mmc_omap_host {
 	u32			total_bytes_left;
 
 	unsigned		features;
-	unsigned		use_dma:1;
 	unsigned		brs_received:1, dma_done:1;
 	unsigned		dma_in_use:1;
 	spinlock_t		dma_lock;
@@ -944,7 +943,7 @@ static void
 mmc_omap_prepare_data(struct mmc_omap_host *host, struct mmc_request *req)
 {
 	struct mmc_data *data = req->data;
-	int i, use_dma, block_size;
+	int i, use_dma = 1, block_size;
 	unsigned sg_len;
 
 	host->data = data;
@@ -969,13 +968,10 @@ mmc_omap_prepare_data(struct mmc_omap_host *host, struct mmc_request *req)
 	sg_len = (data->blocks == 1) ? 1 : data->sg_len;
 
 	/* Only do DMA for entire blocks */
-	use_dma = host->use_dma;
-	if (use_dma) {
-		for (i = 0; i < sg_len; i++) {
-			if ((data->sg[i].length % block_size) != 0) {
-				use_dma = 0;
-				break;
-			}
+	for (i = 0; i < sg_len; i++) {
+		if ((data->sg[i].length % block_size) != 0) {
+			use_dma = 0;
+			break;
 		}
 	}
 
@@ -1369,7 +1365,6 @@ static int mmc_omap_probe(struct platform_device *pdev)
 
 	host->id = pdev->id;
 	host->irq = irq;
-	host->use_dma = 1;
 	host->phys_base = res->start;
 	host->iclk = clk_get(&pdev->dev, "ick");
 	if (IS_ERR(host->iclk))
-- 
1.8.4.3


  parent reply	other threads:[~2013-12-04 19:14 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-12-02 19:34 [PATCH] mmc: omap: Fix error introduced by fix to release_mem_region() path Tony Lindgren
2013-12-03 18:16 ` Jarkko Nikula
2013-12-04 18:00   ` Tony Lindgren
2013-12-04 18:01 ` Tony Lindgren
2013-12-04 21:14 ` [PATCH 0/7] mmc: omap: Fixes, cleanup and add ERASE capability Jarkko Nikula
2013-12-04 21:14   ` [PATCH 1/7] mmc: omap: Fix NULL pointer dereference due uninitialized cover_tasklet Jarkko Nikula
2013-12-04 21:14   ` [PATCH 2/7] mmc: omap: Convert to devm_kzalloc Jarkko Nikula
2013-12-04 21:14   ` [PATCH 3/7] mmc: omap: Remove duplicate host->irq assignment Jarkko Nikula
2013-12-04 21:14   ` [PATCH 4/7] mmc: omap: Remove mem_res field from struct mmc_omap_host Jarkko Nikula
2013-12-04 21:14   ` [PATCH 5/7] mmc: omap: Convert to devm_ioremap_resource Jarkko Nikula
2013-12-04 21:14   ` Jarkko Nikula [this message]
2013-12-04 21:14   ` [PATCH 7/7] mmc: omap: Add erase capability Jarkko Nikula
2013-12-05 18:18   ` [PATCH 0/7] mmc: omap: Fixes, cleanup and add ERASE capability Tony Lindgren
2013-12-06 13:41   ` Aaro Koskinen
2013-12-06 19:54     ` Jarkko Nikula

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