diff options
Diffstat (limited to 'common/recipes-kernel/linux/linux-yocto-4.19.8/0881-drm-amd-display-CTS-4.2.2.7.patch')
| -rw-r--r-- | common/recipes-kernel/linux/linux-yocto-4.19.8/0881-drm-amd-display-CTS-4.2.2.7.patch | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/common/recipes-kernel/linux/linux-yocto-4.19.8/0881-drm-amd-display-CTS-4.2.2.7.patch b/common/recipes-kernel/linux/linux-yocto-4.19.8/0881-drm-amd-display-CTS-4.2.2.7.patch new file mode 100644 index 00000000..4bf2baaf --- /dev/null +++ b/common/recipes-kernel/linux/linux-yocto-4.19.8/0881-drm-amd-display-CTS-4.2.2.7.patch @@ -0,0 +1,35 @@ +From a2805ca24489e855c747154591f172b25c7b20f5 Mon Sep 17 00:00:00 2001 +From: abdoulaye berthe <abdoulaye.berthe@amd.com> +Date: Fri, 2 Nov 2018 12:07:46 -0400 +Subject: [PATCH 0881/2940] drm/amd/display: CTS 4.2.2.7 + +[Why] +Failure to read Detailed Capabilities Info. + +[How] +Read Detailed Capbilities Info 80h-08Fh. + +Signed-off-by: abdoulaye berthe <abdoulaye.berthe@amd.com> +Reviewed-by: Wenjing Liu <Wenjing.Liu@amd.com> +Acked-by: Leo Li <sunpeng.li@amd.com> +Signed-off-by: Alex Deucher <alexander.deucher@amd.com> +--- + drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c | 2 +- + 1 file changed, 1 insertion(+), 1 deletion(-) + +diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c b/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c +index 4d1f8ac069c1..849a3a3032f7 100644 +--- a/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c ++++ b/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c +@@ -2196,7 +2196,7 @@ static void get_active_converter_info( + } + + if (link->dpcd_caps.dpcd_rev.raw >= DPCD_REV_11) { +- uint8_t det_caps[4]; ++ uint8_t det_caps[16]; /* CTS 4.2.2.7 expects source to read Detailed Capabilities Info : 00080h-0008F.*/ + union dwnstream_port_caps_byte0 *port_caps = + (union dwnstream_port_caps_byte0 *)det_caps; + core_link_read_dpcd(link, DP_DOWNSTREAM_PORT_0, +-- +2.17.1 + |