[PATCH v2 6/8] mmc: atmel-mci: use ATMEL_PDC_SCND_BUF_OFF instead of a literal value

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From: Ludovic Desroches <ludovic.desroches@xxxxxxxxx>

Signed-off-by: Ludovic Desroches <ludovic.desroches@xxxxxxxxx>
---
 drivers/mmc/host/atmel-mci.c |    4 ++--
 include/linux/atmel_pdc.h    |    2 ++
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/mmc/host/atmel-mci.c b/drivers/mmc/host/atmel-mci.c
index 7955697..c415322 100644
--- a/drivers/mmc/host/atmel-mci.c
+++ b/drivers/mmc/host/atmel-mci.c
@@ -603,8 +603,8 @@ static void atmci_pdc_set_single_buf(struct atmel_mci *host,
 	}
 
 	if (buf_nb == PDC_SECOND_BUF) {
-		pointer_reg += 0x10;
-		counter_reg += 0x10;
+		pointer_reg += ATMEL_PDC_SCND_BUF_OFF;
+		counter_reg += ATMEL_PDC_SCND_BUF_OFF;
 	}
 
 	atmci_writel(host, pointer_reg, sg_dma_address(host->sg));
diff --git a/include/linux/atmel_pdc.h b/include/linux/atmel_pdc.h
index 5058a31..63499ce 100644
--- a/include/linux/atmel_pdc.h
+++ b/include/linux/atmel_pdc.h
@@ -33,4 +33,6 @@
 
 #define ATMEL_PDC_PTSR		0x124	/* Transfer Status Register */
 
+#define ATMEL_PDC_SCND_BUF_OFF	0x10	/* Offset between first and second buffer registers */
+
 #endif
-- 
1.7.0.4

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