drm/nouveau/bios: suppress some parser errors when dry-running scripts

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drivers/gpu/drm/nouveau/core/subdev/bios/init.c

@@ -64,27 +64,33 @@ init_exec_force(struct nvbios_init *init, bool exec)
 static inline int
 init_or(struct nvbios_init *init)
 {
+	if (init_exec(init)) {
 		if (init->outp)
 			return ffs(init->outp->or) - 1;
 		error("script needs OR!!\n");
+	}
 	return 0;
 }
 
 static inline int
 init_link(struct nvbios_init *init)
 {
+	if (init_exec(init)) {
 		if (init->outp)
 			return !(init->outp->sorconf.link & 1);
 		error("script needs OR link\n");
+	}
 	return 0;
 }
 
 static inline int
 init_crtc(struct nvbios_init *init)
 {
+	if (init_exec(init)) {
 		if (init->crtc >= 0)
 			return init->crtc;
 		error("script needs crtc\n");
+	}
 	return 0;
 }
 
@@ -92,16 +98,21 @@ static u8
 init_conn(struct nvbios_init *init)
 {
 	struct nouveau_bios *bios = init->bios;
+	u8  ver, len;
+	u16 conn;
 
+	if (init_exec(init)) {
 		if (init->outp) {
-		u8  ver, len;
-		u16 conn = dcb_conn(bios, init->outp->connector, &ver, &len);
+			conn = init->outp->connector;
+			conn = dcb_conn(bios, conn, &ver, &len);
 			if (conn)
 				return nv_ro08(bios, conn);
 		}
 
 		error("script needs connector type\n");
-	return 0x00;
+	}
+
+	return 0xff;
 }
 
 static inline u32
@@ -227,6 +238,7 @@ init_i2c(struct nvbios_init *init, int index)
 	} else
 	if (index < 0) {
 		if (!init->outp) {
+			if (init_exec(init))
 				error("script needs output for i2c\n");
 			return NULL;
 		}
@@ -544,6 +556,7 @@ init_tmds_reg(struct nvbios_init *init, u8 tmds)
 			return 0x6808b0 + dacoffset;
 		}
 
+		if (init_exec(init))
 			error("tmds opcodes need dcb\n");
 	} else {
 		if (tmds < ARRAY_SIZE(pramdac_table))
@@ -792,6 +805,7 @@ init_dp_condition(struct nvbios_init *init)
 			break;
 		}
 
+		if (init_exec(init))
 			warn("script needs dp output table data\n");
 		break;
 	case 5: