84 lines · c
1// SPDX-License-Identifier: MIT2/*3 * Copyright © 2024 Intel Corporation4 */5 6#include <linux/workqueue.h>7 8#include "i915_drv.h"9 10#include "intel_display_types.h"11#include "intel_encoder.h"12 13static void intel_encoder_link_check_work_fn(struct work_struct *work)14{15 struct intel_encoder *encoder =16 container_of(work, typeof(*encoder), link_check_work.work);17 18 encoder->link_check(encoder);19}20 21void intel_encoder_link_check_init(struct intel_encoder *encoder,22 void (*callback)(struct intel_encoder *encoder))23{24 INIT_DELAYED_WORK(&encoder->link_check_work, intel_encoder_link_check_work_fn);25 encoder->link_check = callback;26}27 28void intel_encoder_link_check_flush_work(struct intel_encoder *encoder)29{30 cancel_delayed_work_sync(&encoder->link_check_work);31}32 33void intel_encoder_link_check_queue_work(struct intel_encoder *encoder, int delay_ms)34{35 struct drm_i915_private *i915 = to_i915(encoder->base.dev);36 37 mod_delayed_work(i915->unordered_wq,38 &encoder->link_check_work, msecs_to_jiffies(delay_ms));39}40 41void intel_encoder_suspend_all(struct intel_display *display)42{43 struct intel_encoder *encoder;44 45 if (!HAS_DISPLAY(display))46 return;47 48 /*49 * TODO: check and remove holding the modeset locks if none of50 * the encoders depends on this.51 */52 drm_modeset_lock_all(display->drm);53 for_each_intel_encoder(display->drm, encoder)54 if (encoder->suspend)55 encoder->suspend(encoder);56 drm_modeset_unlock_all(display->drm);57 58 for_each_intel_encoder(display->drm, encoder)59 if (encoder->suspend_complete)60 encoder->suspend_complete(encoder);61}62 63void intel_encoder_shutdown_all(struct intel_display *display)64{65 struct intel_encoder *encoder;66 67 if (!HAS_DISPLAY(display))68 return;69 70 /*71 * TODO: check and remove holding the modeset locks if none of72 * the encoders depends on this.73 */74 drm_modeset_lock_all(display->drm);75 for_each_intel_encoder(display->drm, encoder)76 if (encoder->shutdown)77 encoder->shutdown(encoder);78 drm_modeset_unlock_all(display->drm);79 80 for_each_intel_encoder(display->drm, encoder)81 if (encoder->shutdown_complete)82 encoder->shutdown_complete(encoder);83}84