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Subject[PATCH v1 06/10] misc: eeprom_93xx46: Use spi_message_init_with_transfers()
Date
Replace open coded spi_message_init_with_transfers().

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
drivers/misc/eeprom/eeprom_93xx46.c | 34 +++++++++++------------------
1 file changed, 13 insertions(+), 21 deletions(-)

diff --git a/drivers/misc/eeprom/eeprom_93xx46.c b/drivers/misc/eeprom/eeprom_93xx46.c
index b6d699c1cd39..3f885bac72c2 100644
--- a/drivers/misc/eeprom/eeprom_93xx46.c
+++ b/drivers/misc/eeprom/eeprom_93xx46.c
@@ -5,6 +5,7 @@
* (C) 2011 DENX Software Engineering, Anatolij Gustschin <agust@denx.de>
*/

+#include <linux/array_size.h>
#include <linux/bits.h>
#include <linux/delay.h>
#include <linux/device.h>
@@ -124,7 +125,7 @@ static int eeprom_93xx46_read(void *priv, unsigned int off,

while (count) {
struct spi_message m;
- struct spi_transfer t[2] = { { 0 } };
+ struct spi_transfer t[2] = {};
u16 cmd_addr = OP_READ << edev->addrlen;
size_t nbytes = count;

@@ -146,17 +147,15 @@ static int eeprom_93xx46_read(void *priv, unsigned int off,
bits += 1;
}

- spi_message_init(&m);
-
t[0].tx_buf = (char *)&cmd_addr;
t[0].len = 2;
t[0].bits_per_word = bits;
- spi_message_add_tail(&t[0], &m);

t[1].rx_buf = buf;
t[1].len = count;
t[1].bits_per_word = 8;
- spi_message_add_tail(&t[1], &m);
+
+ spi_message_init_with_transfers(&m, t, ARRAY_SIZE(t));

err = spi_sync(edev->spi, &m);
/* have to wait at least Tcsl ns */
@@ -183,7 +182,7 @@ static int eeprom_93xx46_read(void *priv, unsigned int off,
static int eeprom_93xx46_ew(struct eeprom_93xx46_dev *edev, int is_on)
{
struct spi_message m;
- struct spi_transfer t;
+ struct spi_transfer t = {};
int bits, ret;
u16 cmd_addr;

@@ -204,13 +203,11 @@ static int eeprom_93xx46_ew(struct eeprom_93xx46_dev *edev, int is_on)
dev_dbg(&edev->spi->dev, "ew%s cmd 0x%04x, %d bits\n",
is_on ? "en" : "ds", cmd_addr, bits);

- spi_message_init(&m);
- memset(&t, 0, sizeof(t));
-
t.tx_buf = &cmd_addr;
t.len = 2;
t.bits_per_word = bits;
- spi_message_add_tail(&t, &m);
+
+ spi_message_init_with_transfers(&m, &t, 1);

mutex_lock(&edev->lock);

@@ -234,7 +231,7 @@ eeprom_93xx46_write_word(struct eeprom_93xx46_dev *edev,
const char *buf, unsigned off)
{
struct spi_message m;
- struct spi_transfer t[2];
+ struct spi_transfer t[2] = {};
int bits, data_len, ret;
u16 cmd_addr;

@@ -256,18 +253,15 @@ eeprom_93xx46_write_word(struct eeprom_93xx46_dev *edev,

dev_dbg(&edev->spi->dev, "write cmd 0x%x\n", cmd_addr);

- spi_message_init(&m);
- memset(t, 0, sizeof(t));
-
t[0].tx_buf = (char *)&cmd_addr;
t[0].len = 2;
t[0].bits_per_word = bits;
- spi_message_add_tail(&t[0], &m);

t[1].tx_buf = buf;
t[1].len = data_len;
t[1].bits_per_word = 8;
- spi_message_add_tail(&t[1], &m);
+
+ spi_message_init_with_transfers(&m, t, ARRAY_SIZE(t));

ret = spi_sync(edev->spi, &m);
/* have to wait program cycle time Twc ms */
@@ -325,7 +319,7 @@ static int eeprom_93xx46_write(void *priv, unsigned int off,
static int eeprom_93xx46_eral(struct eeprom_93xx46_dev *edev)
{
struct spi_message m;
- struct spi_transfer t;
+ struct spi_transfer t = {};
int bits, ret;
u16 cmd_addr;

@@ -345,13 +339,11 @@ static int eeprom_93xx46_eral(struct eeprom_93xx46_dev *edev)

dev_dbg(&edev->spi->dev, "eral cmd 0x%04x, %d bits\n", cmd_addr, bits);

- spi_message_init(&m);
- memset(&t, 0, sizeof(t));
-
t.tx_buf = &cmd_addr;
t.len = 2;
t.bits_per_word = bits;
- spi_message_add_tail(&t, &m);
+
+ spi_message_init_with_transfers(&m, &t, 1);

mutex_lock(&edev->lock);

--
2.43.0.rc1.1336.g36b5255a03ac

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