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[4/4] mmc: sdhi: use maximum width for the sdbuf register

Message ID 20170630105649.16137-5-wsa+renesas@sang-engineering.com (mailing list archive)
State New, archived
Headers show

Commit Message

Wolfram Sang June 30, 2017, 10:56 a.m. UTC 
We can derive the sd_buf width from the bus_shift parameter which tells
us how far registers are apart. Remove the obvious comment, too.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
---
 drivers/mmc/host/renesas_sdhi_core.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)
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Patch

diff --git a/drivers/mmc/host/renesas_sdhi_core.c b/drivers/mmc/host/renesas_sdhi_core.c
index dd215723fa4312..48da28dfef6465 100644
--- a/drivers/mmc/host/renesas_sdhi_core.c
+++ b/drivers/mmc/host/renesas_sdhi_core.c
@@ -461,8 +461,7 @@  static void renesas_sdhi_enable_dma(struct tmio_mmc_host *host, bool enable)
 {
 	sd_ctrl_write16(host, CTL_DMA_ENABLE, enable ? DMA_ENABLE_DMASDRW : 0);
 
-	/* enable 32bit access if DMA mode if possibile */
-	renesas_sdhi_sdbuf_width(host, enable ? 32 : 16);
+	renesas_sdhi_sdbuf_width(host, enable ? (16 << host->bus_shift) : 16);
 }
 
 int renesas_sdhi_probe(struct platform_device *pdev,