This is a note to let you know that I've just added the patch titled drm/ast: Fix DRAM init on AST2200 to the 6.5-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: drm-ast-fix-dram-init-on-ast2200.patch and it can be found in the queue-6.5 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. >From 4cfe75f0f14f044dae66ad0e6eea812d038465d9 Mon Sep 17 00:00:00 2001 From: Thomas Zimmermann <tzimmermann@xxxxxxx> Date: Wed, 21 Jun 2023 14:53:35 +0200 Subject: drm/ast: Fix DRAM init on AST2200 From: Thomas Zimmermann <tzimmermann@xxxxxxx> commit 4cfe75f0f14f044dae66ad0e6eea812d038465d9 upstream. Fix the test for the AST2200 in the DRAM initialization. The value in ast->chip has to be compared against an enum constant instead of a numerical value. This bug got introduced when the driver was first imported into the kernel. Signed-off-by: Thomas Zimmermann <tzimmermann@xxxxxxx> Fixes: 312fec1405dd ("drm: Initial KMS driver for AST (ASpeed Technologies) 2000 series (v2)") Cc: Dave Airlie <airlied@xxxxxxxxxx> Cc: dri-devel@xxxxxxxxxxxxxxxxxxxxx Cc: <stable@xxxxxxxxxxxxxxx> # v3.5+ Reviewed-by: Sui Jingfeng <suijingfeng@xxxxxxxxxxx> Reviewed-by: Jocelyn Falempe <jfalempe@xxxxxxxxxx> Tested-by: Jocelyn Falempe <jfalempe@xxxxxxxxxx> # AST2600 Link: https://patchwork.freedesktop.org/patch/msgid/20230621130032.3568-2-tzimmermann@xxxxxxx Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/gpu/drm/ast/ast_post.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/gpu/drm/ast/ast_post.c +++ b/drivers/gpu/drm/ast/ast_post.c @@ -291,7 +291,7 @@ static void ast_init_dram_reg(struct drm ; } while (ast_read32(ast, 0x10100) != 0xa8); } else {/* AST2100/1100 */ - if (ast->chip == AST2100 || ast->chip == 2200) + if (ast->chip == AST2100 || ast->chip == AST2200) dram_reg_info = ast2100_dram_table_data; else dram_reg_info = ast1100_dram_table_data; Patches currently in stable-queue which might be from tzimmermann@xxxxxxx are queue-6.5/fbdev-ep93xx-fb-do-not-assign-to-struct-fb_info.dev.patch queue-6.5/drm-ast-fix-dram-init-on-ast2200.patch