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disp: msm: sde: remove checks in LTM hist disable function

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The right_mixer and hist_en checks in LTM hist disable function are
not valid for dual display use cases, since in dual display use cases,
right_mixer will always be NULL.
When device enters suspend state, hist_en will be set to false in
sde_cp_crtc_suspend(), and together with the right_mixer check,
it will block the ltm buffer lists from resetting and cause LTM has
no buffers to use after resume.

Change-Id: I51b1b00f4af59e42105322de68019479c65f2fbb
Signed-off-by: Yuchao Ma <yuchaom@codeaurora.org>
This commit is contained in:
Yuchao Ma 2019-06-25 16:11:13 +08:00 • committed by Gerrit - the friendly Code Review server
commit 683585ad7a
1 changed files with 0 additions and 6 deletions
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6
msm/sde/sde_color_processing.c
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@ -2876,15 +2876,9 @@ static void _sde_cp_crtc_disable_ltm_hist(struct sde_crtc *sde_crtc,
struct sde_hw_dspp *hw_dspp, struct sde_hw_cp_cfg *hw_cfg)
{
unsigned long irq_flags;
struct sde_hw_mixer *hw_lm = hw_cfg->mixer_info;
u32 i = 0;
spin_lock_irqsave(&sde_crtc->ltm_lock, irq_flags);
if (!hw_lm->cfg.right_mixer && !sde_crtc->ltm_hist_en) {
/* histogram is already disabled */
spin_unlock_irqrestore(&sde_crtc->ltm_lock, irq_flags);
return;
}
sde_crtc->ltm_hist_en = false;
INIT_LIST_HEAD(&sde_crtc->ltm_buf_free);
INIT_LIST_HEAD(&sde_crtc->ltm_buf_busy);