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Message-ID: <a44180f1abf7304e60d34763b36634ce48308a44.1433173031.git.cyrille.pitchen@atmel.com>
Date: Mon, 1 Jun 2015 17:49:11 +0200
From: Cyrille Pitchen <cyrille.pitchen@...el.com>
To: <ludovic.desroches@...el.com>, <nicolas.ferre@...el.com>,
<linux-i2c@...r.kernel.org>, <wsa@...-dreams.de>
CC: <linux-kernel@...r.kernel.org>,
<linux-arm-kernel@...ts.infradead.org>,
<devicetree@...r.kernel.org>, <pawel.moll@....com>,
<mark.rutland@....com>, <ijc+devicetree@...lion.org.uk>,
<galak@...eaurora.org>, <robh+dt@...nel.org>,
Cyrille Pitchen <cyrille.pitchen@...el.com>
Subject: [PATCH v2 1/5] i2c: at91: use BIT() macro to define register bits
This patch just fixes typo before applying later patches which will use
register bits with index above 16.
Signed-off-by: Cyrille Pitchen <cyrille.pitchen@...el.com>
---
drivers/i2c/busses/i2c-at91.c | 29 +++++++++++++++--------------
1 file changed, 15 insertions(+), 14 deletions(-)
diff --git a/drivers/i2c/busses/i2c-at91.c b/drivers/i2c/busses/i2c-at91.c
index ff23d1b..6344942 100644
--- a/drivers/i2c/busses/i2c-at91.c
+++ b/drivers/i2c/busses/i2c-at91.c
@@ -41,29 +41,30 @@
/* AT91 TWI register definitions */
#define AT91_TWI_CR 0x0000 /* Control Register */
-#define AT91_TWI_START 0x0001 /* Send a Start Condition */
-#define AT91_TWI_STOP 0x0002 /* Send a Stop Condition */
-#define AT91_TWI_MSEN 0x0004 /* Master Transfer Enable */
-#define AT91_TWI_SVDIS 0x0020 /* Slave Transfer Disable */
-#define AT91_TWI_QUICK 0x0040 /* SMBus quick command */
-#define AT91_TWI_SWRST 0x0080 /* Software Reset */
+#define AT91_TWI_START BIT(0) /* Send a Start Condition */
+#define AT91_TWI_STOP BIT(1) /* Send a Stop Condition */
+#define AT91_TWI_MSEN BIT(2) /* Master Transfer Enable */
+#define AT91_TWI_MSDIS BIT(3) /* Master Transfer Disable */
+#define AT91_TWI_SVEN BIT(4) /* Slave Transfer Enable */
+#define AT91_TWI_SVDIS BIT(5) /* Slave Transfer Disable */
+#define AT91_TWI_QUICK BIT(6) /* SMBus quick command */
+#define AT91_TWI_SWRST BIT(7) /* Software Reset */
#define AT91_TWI_MMR 0x0004 /* Master Mode Register */
#define AT91_TWI_IADRSZ_1 0x0100 /* Internal Device Address Size */
-#define AT91_TWI_MREAD 0x1000 /* Master Read Direction */
+#define AT91_TWI_MREAD BIT(12) /* Master Read Direction */
#define AT91_TWI_IADR 0x000c /* Internal Address Register */
#define AT91_TWI_CWGR 0x0010 /* Clock Waveform Generator Reg */
#define AT91_TWI_SR 0x0020 /* Status Register */
-#define AT91_TWI_TXCOMP 0x0001 /* Transmission Complete */
-#define AT91_TWI_RXRDY 0x0002 /* Receive Holding Register Ready */
-#define AT91_TWI_TXRDY 0x0004 /* Transmit Holding Register Ready */
-
-#define AT91_TWI_OVRE 0x0040 /* Overrun Error */
-#define AT91_TWI_UNRE 0x0080 /* Underrun Error */
-#define AT91_TWI_NACK 0x0100 /* Not Acknowledged */
+#define AT91_TWI_TXCOMP BIT(0) /* Transmission Complete */
+#define AT91_TWI_RXRDY BIT(1) /* Receive Holding Register Ready */
+#define AT91_TWI_TXRDY BIT(2) /* Transmit Holding Register Ready */
+#define AT91_TWI_OVRE BIT(6) /* Overrun Error */
+#define AT91_TWI_UNRE BIT(7) /* Underrun Error */
+#define AT91_TWI_NACK BIT(8) /* Not Acknowledged */
#define AT91_TWI_IER 0x0024 /* Interrupt Enable Register */
#define AT91_TWI_IDR 0x0028 /* Interrupt Disable Register */
--
1.8.2.2
--
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