From c48642b591ce892f5c6c4aaaeffe8ed100118f6a Mon Sep 17 00:00:00 2001
From: Thomas Zimmermann <tzimmermann@suse.de>
Date: Wed, 4 Dec 2019 14:34:35 +0100
Subject: drm/mgag200: Debug-print unique revisions id on G200 SE
Git-commit: c0826f40c2255960983410e66a1ee44c43a524cd
Patch-mainline: v5.6-rc1
References: jsc#SLE-12680, jsc#SLE-12880, jsc#SLE-12882, jsc#SLE-12883, jsc#SLE-13496, jsc#SLE-15322
The behavior of MGA G200 SE depends on the rev id. Print the id when
debugging is enabled.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191204133435.17462-1-tzimmermann@suse.de
Signed-off-by: Patrik Jakobsson <pjakobsson@suse.de>
---
drivers/gpu/drm/mgag200/mgag200_main.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/mgag200/mgag200_main.c b/drivers/gpu/drm/mgag200/mgag200_main.c
index b1dd569b8c80..e278b6a547bd 100644
--- a/drivers/gpu/drm/mgag200/mgag200_main.c
+++ b/drivers/gpu/drm/mgag200/mgag200_main.c
@@ -119,8 +119,11 @@ static int mgag200_device_init(struct drm_device *dev,
return -ENOMEM;
/* stash G200 SE model number for later use */
- if (IS_G200_SE(mdev))
+ if (IS_G200_SE(mdev)) {
mdev->unique_rev_id = RREG32(0x1e24);
+ DRM_DEBUG("G200 SE unique revision id is 0x%x\n",
+ mdev->unique_rev_id);
+ }
ret = mga_vram_init(mdev);
if (ret)
--
2.28.0