tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
staging:iio:ad9951: Use spi_sync_transfer()
Use the spi_sync_transfer() helper function instead of open-coding it. Makes the
code a bit shorter.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
authored by
Lars-Peter Clausen
and committed by
Jonathan Cameron
3658a71b
630e7377
+6
-20
+6
-20
drivers/staging/iio/frequency/ad9951.c
+6
-20
drivers/staging/iio/frequency/ad9951.c
···
60
60
const char *buf,
61
61
size_t len)
62
62
{
63
-
struct spi_message msg;
64
63
struct spi_transfer xfer;
65
64
int ret;
66
65
struct ad9951_config *config = (struct ad9951_config *)buf;
···
70
71
xfer.tx_buf = &config->asf[0];
71
72
mutex_lock(&st->lock);
72
73
73
-
spi_message_init(&msg);
74
-
spi_message_add_tail(&xfer, &msg);
75
-
ret = spi_sync(st->sdev, &msg);
74
+
ret = spi_sync_transfer(st->sdev, &xfer, 1);
76
75
if (ret)
77
76
goto error_ret;
78
77
79
78
xfer.len = 2;
80
79
xfer.tx_buf = &config->arr[0];
81
80
82
-
spi_message_init(&msg);
83
-
spi_message_add_tail(&xfer, &msg);
84
-
ret = spi_sync(st->sdev, &msg);
81
+
ret = spi_sync_transfer(st->sdev, &xfer, 1);
85
82
if (ret)
86
83
goto error_ret;
87
84
88
85
xfer.len = 5;
89
86
xfer.tx_buf = &config->ftw0[0];
90
87
91
-
spi_message_init(&msg);
92
-
spi_message_add_tail(&xfer, &msg);
93
-
ret = spi_sync(st->sdev, &msg);
88
+
ret = spi_sync_transfer(st->sdev, &xfer, 1);
94
89
if (ret)
95
90
goto error_ret;
96
91
97
92
xfer.len = 3;
98
93
xfer.tx_buf = &config->ftw1[0];
99
94
100
-
spi_message_init(&msg);
101
-
spi_message_add_tail(&xfer, &msg);
102
-
ret = spi_sync(st->sdev, &msg);
95
+
ret = spi_sync_transfer(st->sdev, &xfer, 1);
103
96
if (ret)
104
97
goto error_ret;
105
98
error_ret:
···
104
113
105
114
static void ad9951_init(struct ad9951_state *st)
106
115
{
107
-
struct spi_message msg;
108
116
struct spi_transfer xfer;
109
117
int ret;
110
118
u8 cfr[5];
···
119
129
xfer.len = 5;
120
130
xfer.tx_buf = 𝔠
121
131
122
-
spi_message_init(&msg);
123
-
spi_message_add_tail(&xfer, &msg);
124
-
ret = spi_sync(st->sdev, &msg);
132
+
ret = spi_sync_transfer(st->sdev, &xfer, 1);
125
133
if (ret)
126
134
goto error_ret;
127
135
···
131
143
xfer.len = 4;
132
144
xfer.tx_buf = 𝔠
133
145
134
-
spi_message_init(&msg);
135
-
spi_message_add_tail(&xfer, &msg);
136
-
ret = spi_sync(st->sdev, &msg);
146
+
ret = spi_sync_transfer(st->sdev, &xfer, 1);
137
147
if (ret)
138
148
goto error_ret;
139
149