diff options
Diffstat (limited to 'drivers/mfd/ab8500-spi.c')
| -rw-r--r-- | drivers/mfd/ab8500-spi.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/drivers/mfd/ab8500-spi.c b/drivers/mfd/ab8500-spi.c index b81d4f768ef6..01b6d584442c 100644 --- a/drivers/mfd/ab8500-spi.c +++ b/drivers/mfd/ab8500-spi.c @@ -68,7 +68,12 @@ static int ab8500_spi_read(struct ab8500 *ab8500, u16 addr) ret = spi_sync(spi, &msg); if (!ret) - ret = ab8500->rx_buf[0]; + /* + * Only the 8 lowermost bytes are + * defined with value, the rest may + * vary depending on chip/board noise. + */ + ret = ab8500->rx_buf[0] & 0xFFU; return ret; } @@ -78,6 +83,11 @@ static int __devinit ab8500_spi_probe(struct spi_device *spi) struct ab8500 *ab8500; int ret; + spi->bits_per_word = 24; + ret = spi_setup(spi); + if (ret < 0) + return ret; + ab8500 = kzalloc(sizeof *ab8500, GFP_KERNEL); if (!ab8500) return -ENOMEM; |