Commit 28da74d4 authored by Ankit Nautiyal's avatar Ankit Nautiyal Committed by sanglipeng
Browse files

drm/display/dp: Fix the DP DSC Receiver cap size 

stable inclusion
from stable-v5.10.193
commit 9e0c0b4ce5416818b6ee3ca1be680c5015aa2efa
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I9399M

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=9e0c0b4ce5416818b6ee3ca1be680c5015aa2efa



--------------------------------

commit 5ad1ab30 upstream.

DP DSC Receiver Capabilities are exposed via DPCD 60h-6Fh.
Fix the DSC RECEIVER CAP SIZE accordingly.

Fixes: ffddc436 ("drm/dp: Add DP DSC DPCD receiver capability size define and missing SHIFT")
Cc: Anusha Srivatsa <anusha.srivatsa@intel.com>
Cc: Manasi Navare <manasi.d.navare@intel.com>
Cc: <stable@vger.kernel.org> # v5.0+

Signed-off-by: default avatarAnkit Nautiyal <ankit.k.nautiyal@intel.com>
Reviewed-by: default avatarStanislav Lisovskiy <stanislav.lisovskiy@intel.com>
Signed-off-by: default avatarJani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230818044436.177806-1-ankit.k.nautiyal@intel.com


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: default avatarsanglipeng <sanglipeng1@jd.com>
parent 4b98fdd6

include/drm/drm_dp_helper.h

+1 −1
Original line number Diff line number Diff line
@@ -1182,7 +1182,7 @@ u8 drm_dp_get_adjust_request_post_cursor(const u8 link_status[DP_LINK_STATUS_SIZ 


#define DP_BRANCH_OUI_HEADER_SIZE	0xc

#define DP_RECEIVER_CAP_SIZE		0xf

#define DP_DSC_RECEIVER_CAP_SIZE        0xf

#define DP_DSC_RECEIVER_CAP_SIZE        0x10 /* DSC Capabilities 0x60 through 0x6F */

#define EDP_PSR_RECEIVER_CAP_SIZE	2

#define EDP_DISPLAY_CTL_CAP_SIZE	3