diff options
| author | Charles Keepax <ckeepax@opensource.wolfsonmicro.com> | 2014-08-13 14:42:47 +0400 |
|---|---|---|
| committer | Lee Jones <lee.jones@linaro.org> | 2014-09-26 11:15:39 +0400 |
| commit | e569d937af96bc1ec00e33285fff33ae9c1e42d6 (patch) | |
| tree | 1611190581e14d1d80967a7e2781c40e4ad3d4f4 /drivers/mfd/wm5110-tables.c | |
| parent | 48018943eb906d81e48f40675c17b92abfeafcf1 (diff) | |
| download | linux-e569d937af96bc1ec00e33285fff33ae9c1e42d6.tar.xz | |
mfd: arizona: Mark additional registers as volatile
Mark some additional registers as volatile. The write sequencer control
registers should not be cached, as we don't ever want their value
synchronised as this might cause a write sequence to be accidentally
initiated.
Additionally, the DAC_COMP registers require special preconditions to
write so there values wouldn't be updated accurately during a register
sync.
Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Diffstat (limited to 'drivers/mfd/wm5110-tables.c')
| -rw-r--r-- | drivers/mfd/wm5110-tables.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/mfd/wm5110-tables.c b/drivers/mfd/wm5110-tables.c index 9b98ee559188..beae0a397ee1 100644 --- a/drivers/mfd/wm5110-tables.c +++ b/drivers/mfd/wm5110-tables.c @@ -666,9 +666,6 @@ static const struct reg_default wm5110_reg_default[] = { { 0x0000000A, 0x0001 }, /* R10 - Ctrl IF I2C2 CFG 1 */ { 0x0000000B, 0x0036 }, /* R11 - Ctrl IF I2C1 CFG 2 */ { 0x0000000C, 0x0036 }, /* R12 - Ctrl IF I2C2 CFG 2 */ - { 0x00000016, 0x0000 }, /* R22 - Write Sequencer Ctrl 0 */ - { 0x00000017, 0x0000 }, /* R23 - Write Sequencer Ctrl 1 */ - { 0x00000018, 0x0000 }, /* R24 - Write Sequencer Ctrl 2 */ { 0x00000020, 0x0000 }, /* R32 - Tone Generator 1 */ { 0x00000021, 0x1000 }, /* R33 - Tone Generator 2 */ { 0x00000022, 0x0000 }, /* R34 - Tone Generator 3 */ @@ -2815,6 +2812,9 @@ static bool wm5110_volatile_register(struct device *dev, unsigned int reg) switch (reg) { case ARIZONA_SOFTWARE_RESET: case ARIZONA_DEVICE_REVISION: + case ARIZONA_WRITE_SEQUENCER_CTRL_0: + case ARIZONA_WRITE_SEQUENCER_CTRL_1: + case ARIZONA_WRITE_SEQUENCER_CTRL_2: case ARIZONA_HAPTICS_STATUS: case ARIZONA_SAMPLE_RATE_1_STATUS: case ARIZONA_SAMPLE_RATE_2_STATUS: |