From ee83c930974d4afb5fec3db638a8341b5d1cd3fa Mon Sep 17 00:00:00 2001 From: Hersen Wu Date: Thu, 25 May 2023 09:00:29 -0400 Subject: [PATCH] drm/amd/display: add debugfs for allow_edp_hotplug_detection [Why] within dc_link_detect, edp edid is read only for the first time and saved. edid will not be read after the first time read. to run edp edid read test, need read edp edid for each dc_link_detect. dc->config flag allow_edp_hotplug_detection could be used for edp edid test. [How] add debugfs for dc->config.allow_edp_hotplug_detection Acked-by: Stylon Wang Signed-off-by: Hersen Wu Reviewed-by: Aurabindo Pillai Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher --- .../amd/display/amdgpu_dm/amdgpu_dm_debugfs.c | 32 +++++++++++++++++++ 1 file changed, 32 insertions(+) diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c index caf13b2e8cb64..5ea3284b2b77f 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c @@ -2760,6 +2760,32 @@ static int psr_read_residency(void *data, u64 *val) return 0; } +/* read allow_edp_hotplug_detection */ +static int allow_edp_hotplug_detection_get(void *data, u64 *val) +{ + struct amdgpu_dm_connector *aconnector = data; + struct drm_connector *connector = &aconnector->base; + struct drm_device *dev = connector->dev; + struct amdgpu_device *adev = drm_to_adev(dev); + + *val = adev->dm.dc->config.allow_edp_hotplug_detection; + + return 0; +} + +/* set allow_edp_hotplug_detection */ +static int allow_edp_hotplug_detection_set(void *data, u64 val) +{ + struct amdgpu_dm_connector *aconnector = data; + struct drm_connector *connector = &aconnector->base; + struct drm_device *dev = connector->dev; + struct amdgpu_device *adev = drm_to_adev(dev); + + adev->dm.dc->config.allow_edp_hotplug_detection = (uint32_t) val; + + return 0; +} + /* * Set dmcub trace event IRQ enable or disable. * Usage to enable dmcub trace event IRQ: echo 1 > /sys/kernel/debug/dri/0/amdgpu_dm_dmcub_trace_event_en @@ -2798,6 +2824,10 @@ DEFINE_DEBUGFS_ATTRIBUTE(psr_fops, psr_get, NULL, "%llu\n"); DEFINE_DEBUGFS_ATTRIBUTE(psr_residency_fops, psr_read_residency, NULL, "%llu\n"); +DEFINE_DEBUGFS_ATTRIBUTE(allow_edp_hotplug_detection_fops, + allow_edp_hotplug_detection_get, + allow_edp_hotplug_detection_set, "%llu\n"); + DEFINE_SHOW_ATTRIBUTE(current_backlight); DEFINE_SHOW_ATTRIBUTE(target_backlight); @@ -2968,6 +2998,8 @@ void connector_debugfs_init(struct amdgpu_dm_connector *connector) &target_backlight_fops); debugfs_create_file("ilr_setting", 0644, dir, connector, &edp_ilr_debugfs_fops); + debugfs_create_file("allow_edp_hotplug_detection", 0644, dir, connector, + &allow_edp_hotplug_detection_fops); } for (i = 0; i < ARRAY_SIZE(connector_debugfs_entries); i++) { -- 2.30.2