linux-kernel - [PATCH v2 2/2] drm/nouveau/kms/nv50-: Log SOR/PIOR caps

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Date:   Fri,  7 Aug 2020 17:34:04 -0400
From:   Lyude Paul <lyude@...hat.com>
To:     nouveau@...ts.freedesktop.org
Cc:     Ben Skeggs <bskeggs@...hat.com>, David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>,
        Dave Airlie <airlied@...il.com>,
        Alex Deucher <alexander.deucher@....com>,
        Pankaj Bharadiya <pankaj.laxminarayan.bharadiya@...el.com>,
        Takashi Iwai <tiwai@...e.de>, James Jones <jajones@...dia.com>,
        dri-devel@...ts.freedesktop.org (open list:DRM DRIVER FOR NVIDIA
        GEFORCE/QUADRO GPUS), linux-kernel@...r.kernel.org (open list)
Subject: [PATCH v2 2/2] drm/nouveau/kms/nv50-: Log SOR/PIOR caps

Since I'm almost certain I didn't get capability checking right for
pre-volta chipsets, let's start logging any caps we find to make things
like this obvious in the future.

Signed-off-by: Lyude Paul <lyude@...hat.com>
---
 drivers/gpu/drm/nouveau/dispnv50/disp.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/drivers/gpu/drm/nouveau/dispnv50/disp.c b/drivers/gpu/drm/nouveau/dispnv50/disp.c
index e7874877da858..acf1aa51b3568 100644
--- a/drivers/gpu/drm/nouveau/dispnv50/disp.c
+++ b/drivers/gpu/drm/nouveau/dispnv50/disp.c
@@ -297,6 +297,14 @@ nv50_dmac_create(struct nvif_device *device, struct nvif_object *disp,
 /******************************************************************************
  * Output path helpers
  *****************************************************************************/
+static void
+nv50_outp_dump_caps(struct nouveau_drm *drm,
+		    struct nouveau_encoder *outp)
+{
+	NV_DEBUG(drm, "%s caps: dp_interlace=%d\n",
+		 outp->base.base.name, outp->caps.dp_interlace);
+}
+
 static void
 nv50_outp_release(struct nouveau_encoder *nv_encoder)
 {
@@ -1781,6 +1789,7 @@ nv50_sor_create(struct drm_connector *connector, struct dcb_output *dcbe)
 	drm_connector_attach_encoder(connector, encoder);
 
 	disp->core->func->sor->get_caps(disp, nv_encoder, ffs(dcbe->or) - 1);
+	nv50_outp_dump_caps(drm, nv_encoder);
 
 	if (dcbe->type == DCB_OUTPUT_DP) {
 		struct nvkm_i2c_aux *aux =
@@ -1949,6 +1958,7 @@ nv50_pior_create(struct drm_connector *connector, struct dcb_output *dcbe)
 	drm_connector_attach_encoder(connector, encoder);
 
 	disp->core->func->pior->get_caps(disp, nv_encoder, ffs(dcbe->or) - 1);
+	nv50_outp_dump_caps(drm, nv_encoder);
 
 	return 0;
 }
-- 
2.26.2