From: Rosen Penev <rosenp@gmail.com>
Date: Wed, 26 Jul 2017 00:21:43 +0000 (-0700)
Subject: drm/nouveau/disp: Silence DCB warnings.
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=df00d5da609f59022ee9aafdb4e2313aefeb6bda;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git

drm/nouveau/disp: Silence DCB warnings.

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>
---

diff --git a/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/conn.h b/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/conn.h
index e8e77ee24776..deb477282dde 100644
--- 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
 };
 
diff --git a/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/dcb.h b/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/dcb.h
index 4892a65ddd48..903d117603d8 100644
--- 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,
diff --git a/drivers/gpu/drm/nouveau/nouveau_connector.c b/drivers/gpu/drm/nouveau/nouveau_connector.c
index 5137155bf3c0..70d8e0d69ad5 100644
--- 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_type dcb)
 	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;
 	}
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/disp/base.c b/drivers/gpu/drm/nouveau/nvkm/engine/disp/base.c
index 88582af8bd89..93a75e5b2791 100644
--- 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 *engine)
 		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);