1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
|
From: Russell King <rmk+kernel@armlinux.org.uk>
Bcc: linux@mail.armlinux.org.uk
Cc: linux-i2c@vger.kernel.org
Subject: [PATCH 01/17] i2c: pxa: use official address byte helper
MIME-Version: 1.0
Content-Disposition: inline
Content-Transfer-Encoding: 8bit
Content-Type: text/plain; charset="utf-8"
i2c-pxa was created before i2c_8bit_addr_from_msg() was implemented,
and used its own i2c_pxa_addr_byte() which is functionally the same.
Sadly, it was never updated to use this new helper. Switch it over.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
---
drivers/i2c/busses/i2c-pxa.c | 21 +++++++--------------
1 file changed, 7 insertions(+), 14 deletions(-)
diff --git a/drivers/i2c/busses/i2c-pxa.c b/drivers/i2c/busses/i2c-pxa.c
index 2c3c3d6935c0..966000923e8e 100644
--- a/drivers/i2c/busses/i2c-pxa.c
+++ b/drivers/i2c/busses/i2c-pxa.c
@@ -675,16 +675,6 @@ static void i2c_pxa_slave_stop(struct pxa_i2c *i2c)
* PXA I2C Master mode
*/
-static inline unsigned int i2c_pxa_addr_byte(struct i2c_msg *msg)
-{
- unsigned int addr = (msg->addr & 0x7f) << 1;
-
- if (msg->flags & I2C_M_RD)
- addr |= 1;
-
- return addr;
-}
-
static inline void i2c_pxa_start_message(struct pxa_i2c *i2c)
{
u32 icr;
@@ -693,8 +683,8 @@ static inline void i2c_pxa_start_message(struct pxa_i2c *i2c)
/*
* Step 1: target slave address into IDBR
*/
- writel(i2c_pxa_addr_byte(i2c->msg), _IDBR(i2c));
- i2c->req_slave_addr = i2c_pxa_addr_byte(i2c->msg);
+ i2c->req_slave_addr = i2c_8bit_addr_from_msg(i2c->msg);
+ writel(i2c->req_slave_addr, _IDBR(i2c));
/*
* Step 2: initiate the write.
@@ -1006,8 +999,8 @@ static void i2c_pxa_irq_txempty(struct pxa_i2c *i2c, u32 isr)
/*
* Write the next address.
*/
- writel(i2c_pxa_addr_byte(i2c->msg), _IDBR(i2c));
- i2c->req_slave_addr = i2c_pxa_addr_byte(i2c->msg);
+ i2c->req_slave_addr = i2c_8bit_addr_from_msg(i2c->msg);
+ writel(i2c->req_slave_addr, _IDBR(i2c));
/*
* And trigger a repeated start, and send the byte.
--
2.20.1
|
