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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Lyude Paul <lyude@redhat.com>
Date: Mon, 11 May 2020 18:41:23 -0400
Subject: [PATCH] kms/nv50-: Initialize core channel in
nouveau_display_create()
We'll need the core channel initialized and ready by the time that we
start creating modesetting objects, so that we can call the
NV507D_GET_CAPABILITIES method to make the hardware expose it's
modesetting capabilities for later probing.
So, when loading the driver prepare the core channel from within
nouveau_display_create(). Everywhere else, we initialize the core
channel during resume.
Signed-off-by: Lyude Paul <lyude@redhat.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
---
drivers/gpu/drm/nouveau/dispnv50/disp.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/nouveau/dispnv50/disp.c b/drivers/gpu/drm/nouveau/dispnv50/disp.c
index 2625ed84fc44..2afd56b9887d 100644
--- a/drivers/gpu/drm/nouveau/dispnv50/disp.c
+++ b/drivers/gpu/drm/nouveau/dispnv50/disp.c
@@ -2373,7 +2373,8 @@ nv50_display_init(struct drm_device *dev, bool resume, bool runtime)
struct drm_encoder *encoder;
struct drm_plane *plane;
- core->func->init(core);
+ if (resume || runtime)
+ core->func->init(core);
list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
if (encoder->encoder_type != DRM_MODE_ENCODER_DPMST) {
@@ -2460,6 +2461,8 @@ nv50_display_create(struct drm_device *dev)
if (ret)
goto out;
+ disp->core->func->init(disp->core);
+
/* create crtc objects to represent the hw heads */
if (disp->disp->object.oclass >= GV100_DISP)
crtcs = nvif_rd32(&device->object, 0x610060) & 0xff;
--
2.26.2
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