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Merge "disp: msm: dp: fix mode filtering for 4K120"

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qctecmdr 2021-03-23 02:09:25 -07:00 • committed by Gerrit - the friendly Code Review server
commit 0ed04a31a3
1 changed files with 27 additions and 66 deletions
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93
msm/dp/dp_display.c
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@ -2709,55 +2709,6 @@ static int dp_display_validate_pixel_clock(struct dp_display_mode dp_mode,
return 0;
}
static int dp_display_validate_mixers(struct msm_drm_private *priv,
struct drm_display_mode *mode,
const struct msm_resource_caps_info *avail_res)
{
int rc;
u32 num_lm = 0;
rc = msm_get_mixer_count(priv, mode, avail_res, &num_lm);
if (rc) {
DP_ERR("error getting mixer count. rc:%d\n", rc);
return rc;
}
if (num_lm > avail_res->num_lm) {
DP_DEBUG("num lm:%d > available lm:%d\n", num_lm,
avail_res->num_lm);
return -EPERM;
}
return 0;
}
static int dp_display_validate_dscs(struct msm_drm_private *priv,
struct dp_panel *dp_panel, struct drm_display_mode *mode,
struct dp_display_mode *dp_mode,
const struct msm_resource_caps_info *avail_res)
{
int rc;
u32 num_dsc = 0;
bool dsc_capable = dp_mode->capabilities & DP_PANEL_CAPS_DSC;
if (!dp_panel->dsc_en || !dsc_capable)
return 0;
rc = msm_get_dsc_count(priv, mode->hdisplay, &num_dsc);
if (rc) {
DP_ERR("error getting dsc count. rc:%d\n", rc);
return rc;
}
if (num_dsc > avail_res->num_dsc) {
DP_DEBUG("num dsc:%d > available dsc:%d\n", num_dsc,
avail_res->num_dsc);
return -EPERM;
}
return 0;
}
static int dp_display_validate_topology(struct dp_display_private *dp,
struct dp_panel *dp_panel, struct drm_display_mode *mode,
struct dp_display_mode *dp_mode,
@ -2765,9 +2716,10 @@ static int dp_display_validate_topology(struct dp_display_private *dp,
{
int rc;
struct msm_drm_private *priv = dp->priv;
const u32 dual_lm = 2, quad_lm = 4;
const u32 dual = 2, quad = 4;
u32 num_lm = 0, num_dsc = 0, num_3dmux = 0;
bool dsc_capable = dp_mode->capabilities & DP_PANEL_CAPS_DSC;
u32 fps = dp_mode->timing.refresh_rate;
rc = msm_get_mixer_count(priv, mode, avail_res, &num_lm);
if (rc) {
@ -2775,24 +2727,42 @@ static int dp_display_validate_topology(struct dp_display_private *dp,
return rc;
}
num_3dmux = avail_res->num_3dmux;
/* Merge using DSC, if enabled */
if (dp_panel->dsc_en && dsc_capable) {
rc = msm_get_dsc_count(priv, mode->hdisplay, &num_dsc);
if (rc) {
DP_ERR("error getting dsc count. rc:%d\n", rc);
return rc;
}
/* Only DSCMERGE is supported on DP */
num_lm = max(num_lm, num_dsc);
num_dsc = max(num_lm, num_dsc);
} else {
num_3dmux = avail_res->num_3dmux;
}
/* filter out unsupported DP topologies */
if ((num_lm == dual_lm && (!num_3dmux && !num_dsc)) ||
(num_lm == quad_lm && (num_dsc != 4))) {
DP_DEBUG("invalid topology lm:%d dsc:%d 3dmux:%d intf:1\n",
num_lm, num_dsc, num_3dmux);
if (num_lm > avail_res->num_lm) {
DP_DEBUG("mode %sx%d is invalid, not enough lm %d %d\n",
mode->name, fps, num_lm, num_lm, avail_res->num_lm);
return -EPERM;
} else if (num_dsc > avail_res->num_dsc) {
DP_DEBUG("mode %sx%d is invalid, not enough dsc %d %d\n",
mode->name, fps, num_dsc, avail_res->num_dsc);
return -EPERM;
} else if (!num_dsc && (num_lm == dual && !num_3dmux)) {
DP_DEBUG("mode %sx%d is invalid, not enough 3dmux %d %d\n",
mode->name, fps, num_3dmux, avail_res->num_3dmux);
return -EPERM;
} else if (num_lm == quad && num_dsc != quad) {
DP_DEBUG("mode %sx%d is invalid, unsupported DP topology lm:%d dsc:%d\n",
mode->name, fps, num_lm, num_dsc);
return -EPERM;
}
DP_DEBUG("mode %sx%d is valid, supported DP topology lm:%d dsc:%d 3dmux:%d\n",
mode->name, fps, num_lm, num_dsc, num_3dmux);
return 0;
}
@ -2905,15 +2875,6 @@ static enum drm_mode_status dp_display_validate_mode(
if (rc)
goto end;
rc = dp_display_validate_mixers(dp->priv, mode, avail_res);
if (rc)
goto end;
rc = dp_display_validate_dscs(dp->priv, panel, mode, &dp_mode,
avail_res);
if (rc)
goto end;
rc = dp_display_validate_topology(dp, dp_panel, mode,
&dp_mode, avail_res);
if (rc)