diff options
Diffstat (limited to 'meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/3995-drm-amdgpu-dm-Resume-short-HPD-IRQs-before-resuming-.patch')
| -rw-r--r-- | meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/3995-drm-amdgpu-dm-Resume-short-HPD-IRQs-before-resuming-.patch | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/3995-drm-amdgpu-dm-Resume-short-HPD-IRQs-before-resuming-.patch b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/3995-drm-amdgpu-dm-Resume-short-HPD-IRQs-before-resuming-.patch new file mode 100644 index 00000000..3f8e8a9d --- /dev/null +++ b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/3995-drm-amdgpu-dm-Resume-short-HPD-IRQs-before-resuming-.patch @@ -0,0 +1,55 @@ +From dd588511b3d9462a8d8cb12bb5de259548dbcea4 Mon Sep 17 00:00:00 2001 +From: Lyude Paul <lyude@redhat.com> +Date: Wed, 25 Sep 2019 17:52:48 -0400 +Subject: [PATCH 3995/4256] drm/amdgpu/dm: Resume short HPD IRQs before + resuming MST topology +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +Since we're going to be reprobing the entire topology state on resume +now using sideband transactions, we need to ensure that we actually have +short HPD irqs enabled before calling drm_dp_mst_topology_mgr_resume(). +So, do that. + +Changes since v4: +* Fix typo in comments + +Cc: Juston Li <juston.li@intel.com> +Cc: Imre Deak <imre.deak@intel.com> +Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> +Cc: Harry Wentland <hwentlan@amd.com> +Cc: Daniel Vetter <daniel.vetter@ffwll.ch> +Signed-off-by: Lyude Paul <lyude@redhat.com> +Acked-by: Alex Deucher <alexander.deucher@amd.com> +Signed-off-by: Alex Deucher <alexander.deucher@amd.com> +--- + drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 6 +++--- + 1 file changed, 3 insertions(+), 3 deletions(-) + +diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c +index be9a95b534b8..7ade3cbb5552 100644 +--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c ++++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c +@@ -1221,15 +1221,15 @@ static int dm_resume(void *handle) + /* program HPD filter */ + dc_resume(dm->dc); + +- /* On resume we need to rewrite the MSTM control bits to enamble MST*/ +- s3_handle_mst(ddev, false); +- + /* + * early enable HPD Rx IRQ, should be done before set mode as short + * pulse interrupts are used for MST + */ + amdgpu_dm_irq_resume_early(adev); + ++ /* On resume we need to rewrite the MSTM control bits to enable MST*/ ++ s3_handle_mst(ddev, false); ++ + /* Do detection*/ + list_for_each_entry(connector, &ddev->mode_config.connector_list, head) { + aconnector = to_amdgpu_dm_connector(connector); +-- +2.17.1 + |