From caee68b3d645101e8aad40ad96a3344f9912dd01 Mon Sep 17 00:00:00 2001
From: Thomas Zimmermann <tzimmermann@suse.de>
Date: Mon, 7 Feb 2022 15:15:42 +0100
Subject: drm/ast: Read encoder possible-CRTC mask from drm_crtc_mask()
Git-commit: f665147cda30928ce79045a13953eb709fa3dcbc
Patch-mainline: v5.18-rc1
References: jsc#PED-1166 jsc#PED-1168 jsc#PED-1170 jsc#PED-1218 jsc#PED-1220 jsc#PED-1222 jsc#PED-1223 jsc#PED-1225

Read the encoder's possible-CRTC mask from the involved CRTC instead
of hard-coding it.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220207141544.30015-8-tzimmermann@suse.de
Acked-by: Patrik Jakobsson <pjakobsson@suse.de>
---
 drivers/gpu/drm/ast/ast_mode.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/ast/ast_mode.c b/drivers/gpu/drm/ast/ast_mode.c
index a1bb50b98299..c5ab55a402b1 100644
--- a/drivers/gpu/drm/ast/ast_mode.c
+++ b/drivers/gpu/drm/ast/ast_mode.c
@@ -1341,7 +1341,7 @@ static int ast_vga_output_init(struct ast_private *ast)
 	ret = drm_simple_encoder_init(dev, encoder, DRM_MODE_ENCODER_DAC);
 	if (ret)
 		return ret;
-	encoder->possible_crtcs = 1;
+	encoder->possible_crtcs = drm_crtc_mask(crtc);
 
 	ret = ast_vga_connector_init(dev, ast_vga_connector);
 	if (ret)
-- 
2.38.1