From df00d5da609f59022ee9aafdb4e2313aefeb6bda Mon Sep 17 00:00:00 2001
From: Rosen Penev <rosenp@gmail.com>
Date: Tue, 25 Jul 2017 17:21:43 -0700
Subject: [PATCH] drm/nouveau/disp: Silence DCB warnings.
Git-commit: df00d5da609f59022ee9aafdb4e2313aefeb6bda
Patch-mainline: v4.14-rc1
References: bsc#1095094
Most of these errors seem to be WFD related. Official documentation
says dcb type 8 is reserved. It's probably used for WFD. Silence
the warning in either case.
Connector type 70 is stated to be a virtual connector for WiFi
display. Since we know this, don't warn that we don't.
Signed-off by: Rosen Penev <rosenp@gmail.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Acked-by: Takashi Iwai <tiwai@suse.de>
---
drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/conn.h | 1 +
drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/dcb.h | 1 +
drivers/gpu/drm/nouveau/nouveau_connector.c | 1 +
drivers/gpu/drm/nouveau/nvkm/engine/disp/base.c | 4 ++++
4 files changed, 7 insertions(+)
--- a/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/conn.h
+++ b/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/conn.h
@@ -18,6 +18,7 @@ enum dcb_connector_type {
DCB_CONNECTOR_HDMI_C = 0x63,
DCB_CONNECTOR_DMS59_DP0 = 0x64,
DCB_CONNECTOR_DMS59_DP1 = 0x65,
+ DCB_CONNECTOR_WFD = 0x70,
DCB_CONNECTOR_NONE = 0xff
};
--- a/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/dcb.h
+++ b/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/dcb.h
@@ -6,6 +6,7 @@ enum dcb_output_type {
DCB_OUTPUT_TMDS = 0x2,
DCB_OUTPUT_LVDS = 0x3,
DCB_OUTPUT_DP = 0x6,
+ DCB_OUTPUT_WFD = 0x8,
DCB_OUTPUT_EOL = 0xe,
DCB_OUTPUT_UNUSED = 0xf,
DCB_OUTPUT_ANY = -1,
--- a/drivers/gpu/drm/nouveau/nouveau_connector.c
+++ b/drivers/gpu/drm/nouveau/nouveau_connector.c
@@ -1184,6 +1184,7 @@ drm_conntype_from_dcb(enum dcb_connector
case DCB_CONNECTOR_HDMI_0 :
case DCB_CONNECTOR_HDMI_1 :
case DCB_CONNECTOR_HDMI_C : return DRM_MODE_CONNECTOR_HDMIA;
+ case DCB_CONNECTOR_WFD : return DRM_MODE_CONNECTOR_VIRTUAL;
default:
break;
}
--- a/drivers/gpu/drm/nouveau/nvkm/engine/disp/base.c
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/base.c
@@ -285,6 +285,10 @@ nvkm_disp_oneinit(struct nvkm_engine *en
case DCB_OUTPUT_DP:
ret = nvkm_dp_new(disp, i, &dcbE, &outp);
break;
+ case DCB_OUTPUT_WFD:
+ /* No support for WFD yet. */
+ ret = -ENODEV;
+ continue;
default:
nvkm_warn(subdev, "dcb %d type %d unknown\n",
i, dcbE.type);