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disp: msm: dp: Extend mode filtering to support 8K

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Currently DP driver determines if a mode is DSC capable
based on a DTSI entry and the required number of DSC
to support it. This approach does not scale when there
is an overlap in DSC requirement between DSI displays
and external DP display, thus causing one of the display to
report modes that cannot be supported.

This change compares the resources reserved for DP driver
calculated at initialization time and the currently available
ones to determine the correct number of resources that DP driver
can use. It also adds DSC and topology filtering logic and moves
DSC hardware specific from DP driver to SDE driver.

Change-Id: I8e601de33422b7c6d786826f7bfe152c4af8a6b5
Signed-off-by: Amine Najahi <anajahi@codeaurora.org>
This commit is contained in:
Amine Najahi
2020-06-07 19:51:11 -04:00
parent 83860f0642
commit ed868466f5
11 changed files with 231 additions and 50 deletions
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26
msm/msm_drv.c
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@@ -1938,6 +1938,32 @@ int msm_get_mixer_count(struct msm_drm_private *priv,
return funcs->get_mixer_count(priv->kms, mode, res, num_lm);
}
int msm_get_dsc_count(struct msm_drm_private *priv,
u32 hdisplay, u32 *num_dsc)
{
struct msm_kms *kms;
const struct msm_kms_funcs *funcs;
if (!priv) {
DRM_ERROR("invalid drm private struct\n");
return -EINVAL;
}
kms = priv->kms;
if (!kms) {
DRM_ERROR("invalid msm kms struct\n");
return -EINVAL;
}
funcs = kms->funcs;
if (!funcs || !funcs->get_dsc_count) {
DRM_ERROR("invalid function pointers\n");
return -EINVAL;
}
return funcs->get_dsc_count(priv->kms, hdisplay, num_dsc);
}
static int msm_drm_bind(struct device *dev)
{
return msm_drm_component_init(dev);