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[v3,7/9] mmc: meson-gx: reduce bounce buffer size

Message ID 104a768e-fee3-0643-fed9-b4362b2366a1@gmail.com (mailing list archive)
State New, archived
Headers show

Commit Message

Heiner Kallweit Feb. 7, 2017, 9:35 p.m. UTC 
A bounce buffer of 512K isn't needed as the max request size is
511 * 512 byte.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Reviewed-by: Kevin Hilman <khilman@baylibre.com>
Tested-by: Kevin Hilman <khilman@baylibre.com>
---
v3:
- no changes
---
 drivers/mmc/host/meson-gx-mmc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
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Patch

diff --git a/drivers/mmc/host/meson-gx-mmc.c b/drivers/mmc/host/meson-gx-mmc.c
index c9f25171..4feb8971 100644
--- a/drivers/mmc/host/meson-gx-mmc.c
+++ b/drivers/mmc/host/meson-gx-mmc.c
@@ -782,7 +782,7 @@  static int meson_mmc_probe(struct platform_device *pdev)
 	mmc->max_req_size = mmc->max_blk_count * mmc->max_blk_size;
 
 	/* data bounce buffer */
-	host->bounce_buf_size = SZ_512K;
+	host->bounce_buf_size = mmc->max_req_size;
 	host->bounce_buf =
 		dma_alloc_coherent(host->dev, host->bounce_buf_size,
 				   &host->bounce_dma_addr, GFP_KERNEL);