From: Arun R Murthy Date: Tue, 24 Jun 2025 06:54:58 +0000 (+0530) Subject: drm/i915/panel: register drm_panel and call prepare/unprepare for eDP X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=41de3cec07883dfd891544ef891d5beb6185e362;p=thirdparty%2Fkernel%2Flinux.git drm/i915/panel: register drm_panel and call prepare/unprepare for eDP Allocate and register drm_panel to allow the panel_follower framework to detect the eDP panel and pass drm_connector::kdev device to drm_panel allocation for matching. Call drm_panel_prepare/unprepare in ddi_enable for eDP to allow the followers to get notified of the panel power state changes. Note: This is for eDP with DDI platforms only. v2: remove backlight setup from panel_register (Jani) v3: Updated the commit message (Jani) Signed-off-by: Arun R Murthy Reviewed-by: Jani Nikula Signed-off-by: Suraj Kandpal Link: https://lore.kernel.org/r/20250624-edp_panel-v3-1-e8197b6d9fde@intel.com --- diff --git a/drivers/gpu/drm/i915/display/intel_ddi.c b/drivers/gpu/drm/i915/display/intel_ddi.c index cbd1060e96643..36aa6d14589d3 100644 --- a/drivers/gpu/drm/i915/display/intel_ddi.c +++ b/drivers/gpu/drm/i915/display/intel_ddi.c @@ -73,6 +73,7 @@ #include "intel_lspcon.h" #include "intel_mg_phy_regs.h" #include "intel_modeset_lock.h" +#include "intel_panel.h" #include "intel_pfit.h" #include "intel_pps.h" #include "intel_psr.h" @@ -3355,6 +3356,8 @@ static void intel_ddi_enable_dp(struct intel_atomic_state *state, drm_connector_update_privacy_screen(conn_state); intel_edp_backlight_on(crtc_state, conn_state); + intel_panel_prepare(crtc_state, conn_state); + if (!intel_lspcon_active(dig_port) || intel_dp_has_hdmi_sink(&dig_port->dp)) intel_dp_set_infoframes(encoder, true, crtc_state, conn_state); @@ -3552,6 +3555,7 @@ static void intel_ddi_disable_dp(struct intel_atomic_state *state, intel_dp->link.active = false; + intel_panel_unprepare(old_conn_state); intel_psr_disable(intel_dp, old_crtc_state); intel_alpm_disable(intel_dp); intel_edp_backlight_off(old_conn_state); diff --git a/drivers/gpu/drm/i915/display/intel_panel.c b/drivers/gpu/drm/i915/display/intel_panel.c index e28ad72c4f2b2..2a20aaaaac39b 100644 --- a/drivers/gpu/drm/i915/display/intel_panel.c +++ b/drivers/gpu/drm/i915/display/intel_panel.c @@ -515,7 +515,8 @@ int intel_panel_register(struct intel_connector *connector) if (ret) return ret; - if (connector->base.connector_type == DRM_MODE_CONNECTOR_DSI) { + if (connector->base.connector_type == DRM_MODE_CONNECTOR_DSI || + connector->base.connector_type == DRM_MODE_CONNECTOR_eDP) { struct device *dev = connector->base.kdev; struct drm_panel *base;