mfd: Don't store volatile bits in WM8350 register cache
This makes the contents of the cache clearer and fixes incorrect initialisation of the cache for partially volatile registers. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
This commit is contained in:
parent
799f9e3267
commit
e76f7558d8
|
@ -183,6 +183,9 @@ static int wm8350_write(struct wm8350 *wm8350, u8 reg, int num_regs, u16 *src)
|
|||
(wm8350->reg_cache[i] & ~wm8350_reg_io_map[i].writable)
|
||||
| src[i - reg];
|
||||
|
||||
/* Don't store volatile bits */
|
||||
wm8350->reg_cache[i] &= ~wm8350_reg_io_map[i].vol;
|
||||
|
||||
src[i - reg] = cpu_to_be16(src[i - reg]);
|
||||
}
|
||||
|
||||
|
@ -1120,6 +1123,7 @@ static int wm8350_create_cache(struct wm8350 *wm8350, int mode)
|
|||
}
|
||||
value = be16_to_cpu(value);
|
||||
value &= wm8350_reg_io_map[i].readable;
|
||||
value &= ~wm8350_reg_io_map[i].vol;
|
||||
wm8350->reg_cache[i] = value;
|
||||
} else
|
||||
wm8350->reg_cache[i] = reg_map[i];
|
||||
|
|
Loading…
Reference in a new issue