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[3/4] mmc: tmio: no magic values when enabling DMA

Message ID 20170630105649.16137-4-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 
Use a proper define.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
---
 drivers/mmc/host/renesas_sdhi_core.c | 2 +-
 drivers/mmc/host/tmio_mmc.h          | 3 +++
 2 files changed, 4 insertions(+), 1 deletion(-)
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Patch

diff --git a/drivers/mmc/host/renesas_sdhi_core.c b/drivers/mmc/host/renesas_sdhi_core.c
index be806d3e9afeec..dd215723fa4312 100644
--- a/drivers/mmc/host/renesas_sdhi_core.c
+++ b/drivers/mmc/host/renesas_sdhi_core.c
@@ -459,7 +459,7 @@  static int renesas_sdhi_multi_io_quirk(struct mmc_card *card,
 
 static void renesas_sdhi_enable_dma(struct tmio_mmc_host *host, bool enable)
 {
-	sd_ctrl_write16(host, CTL_DMA_ENABLE, enable ? 2 : 0);
+	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);
diff --git a/drivers/mmc/host/tmio_mmc.h b/drivers/mmc/host/tmio_mmc.h
index e3e96178acaab4..3e6ff892144034 100644
--- a/drivers/mmc/host/tmio_mmc.h
+++ b/drivers/mmc/host/tmio_mmc.h
@@ -97,6 +97,9 @@ 
 
 #define TMIO_SDIO_SETBITS_MASK	0x0006
 
+/* Definitions for values the CTL_DMA_ENABLE register can take */
+#define DMA_ENABLE_DMASDRW	BIT(1)
+
 /* Define some IRQ masks */
 /* This is the mask used at reset by the chip */
 #define TMIO_MASK_ALL           0x837f031d