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d81c03f05e
These patches were generated from: https://github.com/raspberrypi/linux/commits/rpi-6.12.y With the following command: git format-patch -N v6.12.27..HEAD (HEAD -> 8d3206ee456a5ecdf9ddbfd8e5e231e4f0cd716e) Exceptions: - (def)configs patches - github workflows patches - applied & reverted patches - readme patches - wireless patches Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
60 lines
1.9 KiB
Diff
60 lines
1.9 KiB
Diff
From 382dd29fca98d79687d89454eddf5978a9dd2953 Mon Sep 17 00:00:00 2001
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From: Dave Stevenson <dave.stevenson@raspberrypi.com>
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Date: Fri, 5 Apr 2024 17:34:09 +0100
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Subject: [PATCH] drm/vc4: Add option to call from crtc to encoder on vblank
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DSI0 is misbehaving and needs to action things on vblank to
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work around it.
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Add a new hook to call across during vblank.
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Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
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---
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drivers/gpu/drm/vc4/vc4_crtc.c | 12 +++++++++++-
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drivers/gpu/drm/vc4/vc4_drv.h | 1 +
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2 files changed, 12 insertions(+), 1 deletion(-)
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--- a/drivers/gpu/drm/vc4/vc4_crtc.c
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+++ b/drivers/gpu/drm/vc4/vc4_crtc.c
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@@ -811,12 +811,15 @@ static void vc4_disable_vblank(struct dr
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{
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struct vc4_crtc *vc4_crtc = to_vc4_crtc(crtc);
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struct drm_device *dev = crtc->dev;
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+ struct drm_encoder *encoder = vc4_get_crtc_encoder(crtc, crtc->state);
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+ struct vc4_encoder *vc4_encoder = to_vc4_encoder(encoder);
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int idx;
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if (!drm_dev_enter(dev, &idx))
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return;
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- CRTC_WRITE(PV_INTEN, 0);
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+ if (!vc4_encoder || vc4_encoder->type != VC4_ENCODER_TYPE_DSI0)
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+ CRTC_WRITE(PV_INTEN, 0);
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drm_dev_exit(idx);
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}
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@@ -861,7 +864,14 @@ static void vc4_crtc_handle_page_flip(st
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void vc4_crtc_handle_vblank(struct vc4_crtc *crtc)
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{
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+ struct drm_encoder *encoder = vc4_get_crtc_encoder(&crtc->base, crtc->base.state);
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+ struct vc4_encoder *vc4_encoder = to_vc4_encoder(encoder);
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+
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crtc->t_vblank = ktime_get();
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+
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+ if (vc4_encoder && vc4_encoder->vblank)
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+ vc4_encoder->vblank(encoder);
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+
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drm_crtc_handle_vblank(&crtc->base);
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vc4_crtc_handle_page_flip(crtc);
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}
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--- a/drivers/gpu/drm/vc4/vc4_drv.h
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+++ b/drivers/gpu/drm/vc4/vc4_drv.h
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@@ -512,6 +512,7 @@ struct vc4_encoder {
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void (*post_crtc_disable)(struct drm_encoder *encoder, struct drm_atomic_state *state);
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void (*post_crtc_powerdown)(struct drm_encoder *encoder, struct drm_atomic_state *state);
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+ void (*vblank)(struct drm_encoder *encoder);
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};
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#define to_vc4_encoder(_encoder) \
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