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disp: msm: sde: avoid vblank toggling for virtual displays

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This change avoids the enabling or disabling of vblank for
virtual displays. It ensures that vblank remains disabled
regardless of userspace requests.

Change-Id: I104cae9b8c0c4770b5092df49bd30501b09cbbc7
Signed-off-by: Mahadevan <quic_mahap@quicinc.com>
This commit is contained in:
Mahadevan
2024-04-24 12:57:53 +05:30
parent f0cf669898
commit ff946804dd
1 changed files with 7 additions and 2 deletions
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9
msm/sde/sde_crtc.c
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@@ -4991,6 +4991,8 @@ static int _sde_crtc_vblank_enable(
{ {
struct drm_crtc *crtc; struct drm_crtc *crtc;
struct drm_encoder *enc; struct drm_encoder *enc;
enum sde_intf_mode intf_mode;
bool wb_intf_mode = false;
if (!sde_crtc) { if (!sde_crtc) {
SDE_ERROR("invalid crtc\n"); SDE_ERROR("invalid crtc\n");
@@ -5002,6 +5004,9 @@ static int _sde_crtc_vblank_enable(
crtc->state->encoder_mask, crtc->state->encoder_mask,
sde_crtc->cached_encoder_mask); sde_crtc->cached_encoder_mask);
intf_mode = sde_crtc_get_intf_mode(crtc, crtc->state);
wb_intf_mode = ((intf_mode == INTF_MODE_WB_BLOCK) || (intf_mode == INTF_MODE_WB_LINE));
if (enable) { if (enable) {
int ret; int ret;
@@ -5014,7 +5019,7 @@ static int _sde_crtc_vblank_enable(
mutex_lock(&sde_crtc->crtc_lock); mutex_lock(&sde_crtc->crtc_lock);
drm_for_each_encoder_mask(enc, crtc->dev, sde_crtc->cached_encoder_mask) { drm_for_each_encoder_mask(enc, crtc->dev, sde_crtc->cached_encoder_mask) {
if (sde_encoder_in_clone_mode(enc)) if (sde_encoder_in_clone_mode(enc) || wb_intf_mode)
continue; continue;
sde_encoder_register_vblank_callback(enc, sde_crtc_vblank_cb, (void *)crtc); sde_encoder_register_vblank_callback(enc, sde_crtc_vblank_cb, (void *)crtc);
@@ -5023,7 +5028,7 @@ static int _sde_crtc_vblank_enable(
} else { } else {
mutex_lock(&sde_crtc->crtc_lock); mutex_lock(&sde_crtc->crtc_lock);
drm_for_each_encoder_mask(enc, crtc->dev, sde_crtc->cached_encoder_mask) { drm_for_each_encoder_mask(enc, crtc->dev, sde_crtc->cached_encoder_mask) {
if (sde_encoder_in_clone_mode(enc)) if (sde_encoder_in_clone_mode(enc) || wb_intf_mode)
continue; continue;
sde_encoder_register_vblank_callback(enc, NULL, NULL); sde_encoder_register_vblank_callback(enc, NULL, NULL);