This is a note to let you know that I've just added the patch titled drm/ast: Fix incorrect register check for DRAM width to the 3.14-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-incorrect-register-check-for-dram-width.patch and it can be found in the queue-3.14 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. >From 2d02b8bdba322b527c5f5168ce1ca10c2d982a78 Mon Sep 17 00:00:00 2001 From: Timothy Pearson <tpearson@xxxxxxxxxxxxxxxxxxxxxxxx> Date: Fri, 26 Feb 2016 15:29:32 -0600 Subject: drm/ast: Fix incorrect register check for DRAM width From: Timothy Pearson <tpearson@xxxxxxxxxxxxxxxxxxxxxxxx> commit 2d02b8bdba322b527c5f5168ce1ca10c2d982a78 upstream. During DRAM initialization on certain ASpeed devices, an incorrect bit (bit 10) was checked in the "SDRAM Bus Width Status" register to determine DRAM width. Query bit 6 instead in accordance with the Aspeed AST2050 datasheet v1.05. Signed-off-by: Timothy Pearson <tpearson@xxxxxxxxxxxxxxxxxxxxxxxx> Signed-off-by: Dave Airlie <airlied@xxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/gpu/drm/ast/ast_main.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/gpu/drm/ast/ast_main.c +++ b/drivers/gpu/drm/ast/ast_main.c @@ -124,7 +124,7 @@ static int ast_get_dram_info(struct drm_ } while (ast_read32(ast, 0x10000) != 0x01); data = ast_read32(ast, 0x10004); - if (data & 0x400) + if (data & 0x40) ast->dram_bus_width = 16; else ast->dram_bus_width = 32; Patches currently in stable-queue which might be from tpearson@xxxxxxxxxxxxxxxxxxxxxxxx are queue-3.14/drm-ast-fix-incorrect-register-check-for-dram-width.patch -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html