diff options
Diffstat (limited to 'drivers/mfd/wm8994-core.c')
| -rw-r--r-- | drivers/mfd/wm8994-core.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/drivers/mfd/wm8994-core.c b/drivers/mfd/wm8994-core.c index e673bda21f5d..5220af26419e 100644 --- a/drivers/mfd/wm8994-core.c +++ b/drivers/mfd/wm8994-core.c @@ -138,6 +138,29 @@ int wm8994_reg_write(struct wm8994 *wm8994, unsigned short reg, EXPORT_SYMBOL_GPL(wm8994_reg_write); /** + * wm8994_bulk_write: Write multiple WM8994 registers + * + * @wm8994: Device to write to + * @reg: First register + * @count: Number of registers + * @buf: Buffer to write from. + */ +int wm8994_bulk_write(struct wm8994 *wm8994, unsigned short reg, + int count, u16 *buf) +{ + int ret; + + mutex_lock(&wm8994->io_lock); + + ret = wm8994_write(wm8994, reg, count * 2, buf); + + mutex_unlock(&wm8994->io_lock); + + return ret; +} +EXPORT_SYMBOL_GPL(wm8994_bulk_write); + +/** * wm8994_set_bits: Set the value of a bitfield in a WM8994 register * * @wm8994: Device to write to. |
