diff options
Diffstat (limited to 'meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/0477-drm-amd-display-create_links-bug-with-empty-DDI-slot.patch')
| -rw-r--r-- | meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/0477-drm-amd-display-create_links-bug-with-empty-DDI-slot.patch | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/0477-drm-amd-display-create_links-bug-with-empty-DDI-slot.patch b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/0477-drm-amd-display-create_links-bug-with-empty-DDI-slot.patch new file mode 100644 index 00000000..388f8970 --- /dev/null +++ b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/0477-drm-amd-display-create_links-bug-with-empty-DDI-slot.patch @@ -0,0 +1,64 @@ +From 5d393be08b5e09d48e07a1b40a2d0291a58de321 Mon Sep 17 00:00:00 2001 +From: Hersen Wu <hersenxs.wu@amd.com> +Date: Thu, 25 May 2017 10:55:54 -0400 +Subject: [PATCH 0477/4131] drm/amd/display: create_links bug with empty DDI + slot + +Signed-off-by: Hersen Wu <hersenxs.wu@amd.com> +Reviewed-by: Hersen Wu <hersenxs.wu@amd.com> +Acked-by: Harry Wentland <Harry.Wentland@amd.com> +Signed-off-by: Alex Deucher <alexander.deucher@amd.com> +--- + drivers/gpu/drm/amd/display/dc/bios/bios_parser2.c | 7 ++++--- + drivers/gpu/drm/amd/display/dc/core/dc.c | 3 +-- + 2 files changed, 5 insertions(+), 5 deletions(-) + +diff --git a/drivers/gpu/drm/amd/display/dc/bios/bios_parser2.c b/drivers/gpu/drm/amd/display/dc/bios/bios_parser2.c +index 682fc9b..fcd3b72 100644 +--- a/drivers/gpu/drm/amd/display/dc/bios/bios_parser2.c ++++ b/drivers/gpu/drm/amd/display/dc/bios/bios_parser2.c +@@ -410,6 +410,9 @@ enum generic_id generic_id_from_bios_object_id(uint32_t bios_object_id) + return id; + } + ++/* BIOS oject table displaypath is per connector. ++ * There is extra path not for connector. BIOS fill its encoderid as 0 ++ */ + static uint8_t bios_parser_get_connectors_number(struct dc_bios *dcb) + { + struct bios_parser *bp = BP_FROM_DCB(dcb); +@@ -417,9 +420,7 @@ static uint8_t bios_parser_get_connectors_number(struct dc_bios *dcb) + unsigned int i; + + for (i = 0; i < bp->object_info_tbl.v1_4->number_of_path; i++) { +- if (bp->object_info_tbl.v1_4->display_path[i].encoderobjid != 0 +- && +- bp->object_info_tbl.v1_4->display_path[i].display_objid != 0) ++ if (bp->object_info_tbl.v1_4->display_path[i].encoderobjid != 0) + count++; + } + return count; +diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c +index c33e31c..323a5e7 100644 +--- a/drivers/gpu/drm/amd/display/dc/core/dc.c ++++ b/drivers/gpu/drm/amd/display/dc/core/dc.c +@@ -97,6 +97,7 @@ static bool create_links( + struct core_link *link; + + link_init_params.ctx = dc->ctx; ++ /* next BIOS object table connector */ + link_init_params.connector_index = i; + link_init_params.link_index = dc->link_count; + link_init_params.dc = dc; +@@ -106,8 +107,6 @@ static bool create_links( + dc->links[dc->link_count] = link; + link->dc = dc; + ++dc->link_count; +- } else { +- dm_error("DC: failed to create link!\n"); + } + } + +-- +2.7.4 + |