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Merge "disp: msm: sde: while timing engine enabling poll for active region"

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qctecmdr 2022-01-31 20:32:19 -08:00 • committed by Gerrit - the friendly Code Review server
commit 8377993485
1 changed files with 33 additions and 0 deletions
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33
msm/sde/sde_encoder_phys_vid.c
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@ -1107,12 +1107,41 @@ exit:
phys_enc->enable_state = SDE_ENC_DISABLED;
}
static int sde_encoder_phys_vid_poll_for_active_region(struct sde_encoder_phys *phys_enc)
{
struct sde_encoder_phys_vid *vid_enc;
struct intf_timing_params *timing;
u32 line_cnt, v_inactive, poll_time_us, trial = 0;
if (!phys_enc || !phys_enc->hw_intf || !phys_enc->hw_intf->ops.get_line_count)
return -EINVAL;
vid_enc = to_sde_encoder_phys_vid(phys_enc);
timing = &vid_enc->timing_params;
/* if programmable fetch is not enabled return early */
if (!programmable_fetch_get_num_lines(vid_enc, timing))
return 0;
poll_time_us = DIV_ROUND_UP(1000000, timing->vrefresh) / MAX_POLL_CNT;
v_inactive = timing->v_front_porch + timing->v_back_porch + timing->vsync_pulse_width;
do {
usleep_range(poll_time_us, poll_time_us + 5);
line_cnt = phys_enc->hw_intf->ops.get_line_count(phys_enc->hw_intf);
trial++;
} while ((trial < MAX_POLL_CNT) || (line_cnt < v_inactive));
return (trial >= MAX_POLL_CNT) ? -ETIMEDOUT : 0;
}
static void sde_encoder_phys_vid_handle_post_kickoff(
struct sde_encoder_phys *phys_enc)
{
unsigned long lock_flags;
struct sde_encoder_phys_vid *vid_enc;
u32 avr_mode;
u32 ret;
if (!phys_enc) {
SDE_ERROR("invalid encoder\n");
@ -1135,6 +1164,10 @@ static void sde_encoder_phys_vid_handle_post_kickoff(
1);
spin_unlock_irqrestore(phys_enc->enc_spinlock,
lock_flags);
ret = sde_encoder_phys_vid_poll_for_active_region(phys_enc);
if (ret)
SDE_DEBUG_VIDENC(vid_enc, "poll for active failed ret:%d\n", ret);
}
phys_enc->enable_state = SDE_ENC_ENABLED;
}