| Message ID | 1458157309-7332-1-git-send-email-kamal@canonical.com |
|---|---|
| State | New |
| Headers | show |
diff --git a/drivers/gpu/drm/ast/ast_main.c b/drivers/gpu/drm/ast/ast_main.c index 5b5d431..15c5480 100644 --- a/drivers/gpu/drm/ast/ast_main.c +++ b/drivers/gpu/drm/ast/ast_main.c @@ -227,7 +227,7 @@ static int ast_get_dram_info(struct drm_device *dev) } 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;
This is a note to let you know that I have just added a patch titled drm/ast: Fix incorrect register check for DRAM width to the linux-3.19.y-queue branch of the 3.19.y-ckt extended stable tree which can be found at: http://kernel.ubuntu.com/git/ubuntu/linux.git/log/?h=linux-3.19.y-queue This patch is scheduled to be released in version 3.19.8-ckt17. If you, or anyone else, feels it should not be added to this tree, please reply to this email. For more information about the 3.19.y-ckt tree, see https://wiki.ubuntu.com/Kernel/Dev/ExtendedStable Thanks. -Kamal ---8<------------------------------------------------------------ From dbbd7a782a2c5ebbfe0bbf6d62e4088f567c4b31 Mon Sep 17 00:00:00 2001 From: Timothy Pearson <tpearson@raptorengineeringinc.com> Date: Fri, 26 Feb 2016 15:29:32 -0600 Subject: drm/ast: Fix incorrect register check for DRAM width 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@raptorengineeringinc.com> Signed-off-by: Dave Airlie <airlied@redhat.com> Signed-off-by: Kamal Mostafa <kamal@canonical.com> --- drivers/gpu/drm/ast/ast_main.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) -- 2.7.0