The patch below does not apply to the 4.8-stable tree.
If someone wants it applied there, or to any other stable or longterm
tree, then please email the backport, including the original git commit
id to <stable@xxxxxxxxxxxxxxx>.
thanks,
greg k-h
------------------ original commit in Linus's tree ------------------
>From 81d553545a1510ff7c7c00cbc9b57d6172d411a4 Mon Sep 17 00:00:00 2001
From: Liu Ying <gnuiyl@xxxxxxxxx>
Date: Mon, 10 Oct 2016 14:50:07 +0800
Subject: [PATCH] drm/imx: ipuv3-plane: Skip setting u/vbo only when we don't
need modeset
We added active plane reconfiguration support by forcing a full modeset
operation. So, looking at old_plane_state->fb to determine whether we need
to set u/v offset(aka, u/vbo for IPUv3) in ipu_plane_atomic_set_base()
or not is no more correct. Instead, we should do that only when we don't
need modeset.
Fixes: c6c1f9bc798b ("drm/imx: Add active plane reconfiguration support")
Cc: stable@xxxxxxxxxxxxxxx # 4.8
Signed-off-by: Liu Ying <gnuiyl@xxxxxxxxx>
Signed-off-by: Philipp Zabel <p.zabel@xxxxxxxxxxxxxx>
diff --git a/drivers/gpu/drm/imx/ipuv3-plane.c b/drivers/gpu/drm/imx/ipuv3-plane.c
index f5861d9b0df7..cfb34b595d15 100644
--- a/drivers/gpu/drm/imx/ipuv3-plane.c
+++ b/drivers/gpu/drm/imx/ipuv3-plane.c
@@ -103,8 +103,7 @@ drm_plane_state_to_vbo(struct drm_plane_state *state)
(state->src_x >> 16) / 2 - eba;
}
-static void ipu_plane_atomic_set_base(struct ipu_plane *ipu_plane,
- struct drm_plane_state *old_state)
+static void ipu_plane_atomic_set_base(struct ipu_plane *ipu_plane)
{
struct drm_plane *plane = &ipu_plane->base;
struct drm_plane_state *state = plane->state;
@@ -118,7 +117,7 @@ static void ipu_plane_atomic_set_base(struct ipu_plane *ipu_plane,
switch (fb->pixel_format) {
case DRM_FORMAT_YUV420:
case DRM_FORMAT_YVU420:
- if (old_state->fb)
+ if (!drm_atomic_crtc_needs_modeset(crtc_state))
break;
/*
@@ -393,7 +392,7 @@ static void ipu_plane_atomic_update(struct drm_plane *plane,
struct drm_crtc_state *crtc_state = state->crtc->state;
if (!drm_atomic_crtc_needs_modeset(crtc_state)) {
- ipu_plane_atomic_set_base(ipu_plane, old_state);
+ ipu_plane_atomic_set_base(ipu_plane);
return;
}
}
@@ -438,7 +437,7 @@ static void ipu_plane_atomic_update(struct drm_plane *plane,
ipu_cpmem_set_high_priority(ipu_plane->ipu_ch);
ipu_idmac_set_double_buffer(ipu_plane->ipu_ch, 1);
ipu_cpmem_set_stride(ipu_plane->ipu_ch, state->fb->pitches[0]);
- ipu_plane_atomic_set_base(ipu_plane, old_state);
+ ipu_plane_atomic_set_base(ipu_plane);
ipu_plane_enable(ipu_plane);
}
--
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