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[1/5] mmc: tmio: name 0xd8 as CTL_DMA_ENABLE

Message ID 1308610812-3479-2-git-send-email-horms@verge.net.au (mailing list archive)
State New, archived
Headers show

Commit Message

Simon Horman June 20, 2011, 11 p.m. UTC 
This reflects at least the current usage of this register
and I think it improves the readability of the code ever so slightly.

Cc: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Cc: Magnus Damm <magnus.damm@gmail.com>
Signed-off-by: Simon Horman <horms@verge.net.au>

---

Dependencies: none known
---
 drivers/mmc/host/tmio_mmc_dma.c |    2 +-
 include/linux/mmc/tmio.h        |    1 +
 2 files changed, 2 insertions(+), 1 deletions(-)
diff mbox

Patch

diff --git a/drivers/mmc/host/tmio_mmc_dma.c b/drivers/mmc/host/tmio_mmc_dma.c
index 25f1ad6..9c4da66 100644
--- a/drivers/mmc/host/tmio_mmc_dma.c
+++ b/drivers/mmc/host/tmio_mmc_dma.c
@@ -26,7 +26,7 @@  static void tmio_mmc_enable_dma(struct tmio_mmc_host *host, bool enable)
 {
 #if defined(CONFIG_SUPERH) || defined(CONFIG_ARCH_SHMOBILE)
 	/* Switch DMA mode on or off - SuperH specific? */
-	writew(enable ? 2 : 0, host->ctl + (0xd8 << host->bus_shift));
+	writew(enable ? 2 : 0, host->ctl + (CTL_DMA_ENABLE << host->bus_shift));
 #endif
 }
 
diff --git a/include/linux/mmc/tmio.h b/include/linux/mmc/tmio.h
index 19490b9..0a6e40d 100644
--- a/include/linux/mmc/tmio.h
+++ b/include/linux/mmc/tmio.h
@@ -30,6 +30,7 @@ 
 #define CTL_TRANSACTION_CTL 0x34
 #define CTL_SDIO_STATUS 0x36
 #define CTL_SDIO_IRQ_MASK 0x38
+#define CTL_DMA_ENABLE 0xd8
 #define CTL_RESET_SD 0xe0
 #define CTL_SDIO_REGS 0x100
 #define CTL_CLK_AND_WAIT_CTL 0x138