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8299d1f057
Rebased RPi foundation patches on linux 5.10.59, removed applied and reverted patches, wireless patches and defconfig patches. bcm2708: boot tested on RPi B+ v1.2 bcm2709: boot tested on RPi 4B v1.1 4G bcm2711: boot tested on RPi 4B v1.1 4G Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
39 lines
1.4 KiB
Diff
39 lines
1.4 KiB
Diff
From bcdc0a4520ea59c3e888ebb91c8f41e55841297d Mon Sep 17 00:00:00 2001
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From: Maxime Ripard <maxime@cerno.tech>
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Date: Mon, 21 Jun 2021 16:13:02 +0200
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Subject: [PATCH] drm/vc4: crtc: Add some logging
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The encoder retrieval code has been a source of bugs and glitches in the
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past and the crtc <-> encoder association been wrong in a number of
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different ways.
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Add some logging to quickly spot issues if they occur.
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Signed-off-by: Maxime Ripard <maxime@cerno.tech>
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---
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drivers/gpu/drm/vc4/vc4_crtc.c | 6 ++++++
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1 file changed, 6 insertions(+)
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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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@@ -525,6 +525,9 @@ static void vc4_crtc_atomic_disable(stru
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struct drm_encoder *encoder = vc4_get_crtc_encoder(crtc, old_state);
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struct drm_device *dev = crtc->dev;
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+ drm_dbg(dev, "Disabling CRTC %s (%u) connected to Encoder %s (%u)",
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+ crtc->name, crtc->base.id, encoder->name, encoder->base.id);
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+
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require_hvs_enabled(dev);
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/* Disable vblank irq handling before crtc is disabled. */
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@@ -556,6 +559,9 @@ static void vc4_crtc_atomic_enable(struc
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struct drm_encoder *encoder = vc4_get_crtc_encoder(crtc, new_state);
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struct vc4_encoder *vc4_encoder = to_vc4_encoder(encoder);
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+ drm_dbg(dev, "Enabling CRTC %s (%u) connected to Encoder %s (%u)",
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+ crtc->name, crtc->base.id, encoder->name, encoder->base.id);
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+
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require_hvs_enabled(dev);
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/* Enable vblank irq handling before crtc is started otherwise
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