diff options
| author | vwadekar@nvidia.com <vwadekar@nvidia.com> | 2011-02-24 10:18:13 +0530 |
|---|---|---|
| committer | Samuel Ortiz <sameo@linux.intel.com> | 2011-03-02 10:57:50 +0100 |
| commit | 4b57018dcd6418e18c08088c89f123da8a7bfc45 (patch) | |
| tree | d45dcc4392a99546fc0e2dbd97b6219ff6d916a2 /drivers/mfd | |
| parent | 77bd70e9009eab6dbdef3ee08afe87ab26df8dac (diff) | |
| download | linux-4b57018dcd6418e18c08088c89f123da8a7bfc45.tar.bz2 | |
mfd: Avoid tps6586x burst writes
tps6586 does not support burst writes. i2c writes have to be
1 byte at a time.
Cc: stable@kernel.org
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Diffstat (limited to 'drivers/mfd')
| -rw-r--r-- | drivers/mfd/tps6586x.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/drivers/mfd/tps6586x.c b/drivers/mfd/tps6586x.c index 627cf577b16d..e9018d1394ee 100644 --- a/drivers/mfd/tps6586x.c +++ b/drivers/mfd/tps6586x.c @@ -150,12 +150,12 @@ static inline int __tps6586x_write(struct i2c_client *client, static inline int __tps6586x_writes(struct i2c_client *client, int reg, int len, uint8_t *val) { - int ret; + int ret, i; - ret = i2c_smbus_write_i2c_block_data(client, reg, len, val); - if (ret < 0) { - dev_err(&client->dev, "failed writings to 0x%02x\n", reg); - return ret; + for (i = 0; i < len; i++) { + ret = __tps6586x_write(client, reg + i, *(val + i)); + if (ret < 0) + return ret; } return 0; |