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aw8697: optimize sequencer registers write

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Write all sequencer registers in one I2C transaction. Set WAVSEQ1
to 1 in vibrate function when it was not explicitly set

Change-Id: I24e13813bd97b6afb4436f91e79090ea6cb51a78
Signed-off-by: Konstantin Makariev <hcv867@motorola.com>
Reviewed-on: https://gerrit.mot.com/1680232
SLTApproved: Slta Waiver
SME-Granted: SME Approvals Granted
Tested-by: Jira Key
Reviewed-by: Konstantin Makariev <kmakariev@motorola.com>
Submit-Approved: Jira Key
This commit is contained in:
Konstantin Makariev 2020-07-13 13:03:07 -05:00 • committed by Konstantin Makariev
commit 433cbc1bde
1 changed files with 10 additions and 7 deletions
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17
drivers/misc/awinic/aw8697/aw8697.c
View file

@ -2649,10 +2649,12 @@ static void aw8697_vibrate(struct aw8697 *aw8697, int value)
aw8697_rtp_play(aw8697, seq - AW8697_SEQ_NO_RTP_BASE);
break;
case HAPTIC_SHORT:
if (aw8697->seq[0] == 0)
aw8697->seq[0] = 0x01;
if (seq == 0) {
/* seq[0] expected from aw8697_seq_store */
/* when implicit seq, use wave form 0x01 */
aw8697_haptic_set_wav_seq(aw8697, 0x00, 0x01);
}
aw8697->index = 0x01;
aw8697_haptic_set_wav_seq(aw8697, 0x00, aw8697->seq[0]);
aw8697_haptic_set_wav_loop(aw8697, 0x00, 0x00);
aw8697_haptic_ram_vbat_comp(aw8697, false);
aw8697_haptic_play_wav_seq(aw8697, 0x01);
@ -3073,6 +3075,7 @@ static ssize_t aw8697_seq_store(struct device *dev,
struct aw8697 *aw8697 = container_of(cdev, struct aw8697, cdev);
#endif
unsigned int i, val = 0;
unsigned char data[AW8697_WAV_SEQ_SIZE];
int rc;
rc = kstrtouint(buf, 0, &val);
@ -3080,13 +3083,13 @@ static ssize_t aw8697_seq_store(struct device *dev,
return rc;
pr_debug("%s: value=%d\n", __func__, val);
mutex_lock(&aw8697->lock);
for (i = 0; i < AW8697_WAV_SEQ_SIZE; i++) {
aw8697->seq[i] = (val >> ((AW8697_WAV_SEQ_SIZE-i-1) * 8)) & 0xFF;
pr_debug("%s: seq[%d]=%d\n", __func__, i, aw8697->seq[i]);
aw8697_haptic_set_wav_seq(aw8697, i, aw8697->seq[i]);
data[i] = aw8697->seq[i];
}
mutex_lock(&aw8697->lock);
aw8697_i2c_writes(aw8697, AW8697_REG_WAVSEQ1, data, AW8697_WAV_SEQ_SIZE);
mutex_unlock(&aw8697->lock);
return count;