17  * After the CRTC soft reset, the vblank counter would be reset to zero.
18  * But the address and other settings in the CRTC register remain the same
257  * with garbage value, which causes the CRTC hang there.
260  * This overrides the firmware's settings on startup, making the CRTC work
262  * Only touch CRTC hardware-related parts.
308  * and LS2K2000. The counter increases even though the CRTC is disabled,
309  * it will be reset only if the CRTC is being soft reset.
390 static void lsdc_crtc_reset(struct drm_crtc *crtc)  in lsdc_crtc_reset()  argument
392 	struct lsdc_crtc *lcrtc = to_lsdc_crtc(crtc);  in lsdc_crtc_reset()
396 	if (crtc->state)  in lsdc_crtc_reset()
397 		crtc->funcs->atomic_destroy_state(crtc, crtc->state);  in lsdc_crtc_reset()
402 		__drm_atomic_helper_crtc_reset(crtc, NULL);  in lsdc_crtc_reset()
404 		__drm_atomic_helper_crtc_reset(crtc, &priv_crtc_state->base);  in lsdc_crtc_reset()
406 	/* Reset the CRTC hardware, this is required for S3 support */  in lsdc_crtc_reset()
410 static void lsdc_crtc_atomic_destroy_state(struct drm_crtc *crtc,  in lsdc_crtc_atomic_destroy_state()  argument
421 lsdc_crtc_atomic_duplicate_state(struct drm_crtc *crtc)  in lsdc_crtc_atomic_duplicate_state()  argument
430 	__drm_atomic_helper_crtc_duplicate_state(crtc, &new_priv_state->base);  in lsdc_crtc_atomic_duplicate_state()
432 	old_priv_state = to_lsdc_crtc_state(crtc->state);  in lsdc_crtc_atomic_duplicate_state()
440 static u32 lsdc_crtc_get_vblank_counter(struct drm_crtc *crtc)  in lsdc_crtc_get_vblank_counter()  argument
442 	struct lsdc_crtc *lcrtc = to_lsdc_crtc(crtc);  in lsdc_crtc_get_vblank_counter()
448 static int lsdc_crtc_enable_vblank(struct drm_crtc *crtc)  in lsdc_crtc_enable_vblank()  argument
450 	struct lsdc_crtc *lcrtc = to_lsdc_crtc(crtc);  in lsdc_crtc_enable_vblank()
460 static void lsdc_crtc_disable_vblank(struct drm_crtc *crtc)  in lsdc_crtc_disable_vblank()  argument
462 	struct lsdc_crtc *lcrtc = to_lsdc_crtc(crtc);  in lsdc_crtc_disable_vblank()
471  * CRTC related debugfs
472  * Primary planes and cursor planes belong to the CRTC as well.
578 	struct drm_crtc *crtc = &lcrtc->base;  in lsdc_pixpll_show_clock()  local
579 	struct drm_display_mode *mode = &crtc->state->mode;  in lsdc_pixpll_show_clock()
585 	seq_printf(m, "%s: %dx%d@%d\n", crtc->name,  in lsdc_pixpll_show_clock()
616 	seq_puts(m, "soft_reset: soft reset this CRTC\n");  in lsdc_crtc_man_op_show()
617 	seq_puts(m, "enable: enable this CRTC\n");  in lsdc_crtc_man_op_show()
618 	seq_puts(m, "disable: disable this CRTC\n");  in lsdc_crtc_man_op_show()
620 	seq_puts(m, "clone: clone the another crtc with hardware logic\n");  in lsdc_crtc_man_op_show()
627 	struct drm_crtc *crtc = inode->i_private;  in lsdc_crtc_man_op_open()  local
629 	return single_open(file, lsdc_crtc_man_op_show, crtc);  in lsdc_crtc_man_op_open()
673 static int lsdc_crtc_late_register(struct drm_crtc *crtc)  in lsdc_crtc_late_register()  argument
675 	struct lsdc_display_pipe *dispipe = crtc_to_display_pipe(crtc);  in lsdc_crtc_late_register()
676 	struct lsdc_crtc *lcrtc = to_lsdc_crtc(crtc);  in lsdc_crtc_late_register()
677 	struct drm_minor *minor = crtc->dev->primary;  in lsdc_crtc_late_register()
690 				 crtc->debugfs_entry, minor);  in lsdc_crtc_late_register()
693 	debugfs_create_file("ops", 0644, crtc->debugfs_entry, lcrtc,  in lsdc_crtc_late_register()
743 lsdc_crtc_mode_valid(struct drm_crtc *crtc, const struct drm_display_mode *mode)  in lsdc_crtc_mode_valid()  argument
745 	struct drm_device *ddev = crtc->dev;  in lsdc_crtc_mode_valid()
774 static int lsdc_pixpll_atomic_check(struct drm_crtc *crtc,  in lsdc_pixpll_atomic_check()  argument
777 	struct lsdc_crtc *lcrtc = to_lsdc_crtc(crtc);  in lsdc_pixpll_atomic_check()
786 		drm_warn(crtc->dev, "Failed to find PLL params for %ukHz\n",  in lsdc_pixpll_atomic_check()
794 static int lsdc_crtc_helper_atomic_check(struct drm_crtc *crtc,  in lsdc_crtc_helper_atomic_check()  argument
797 	struct drm_crtc_state *crtc_state = drm_atomic_get_new_crtc_state(state, crtc);  in lsdc_crtc_helper_atomic_check()
802 	return lsdc_pixpll_atomic_check(crtc, crtc_state);  in lsdc_crtc_helper_atomic_check()
805 static void lsdc_crtc_mode_set_nofb(struct drm_crtc *crtc)  in lsdc_crtc_mode_set_nofb()  argument
807 	struct lsdc_crtc *lcrtc = to_lsdc_crtc(crtc);  in lsdc_crtc_mode_set_nofb()
811 	struct drm_crtc_state *state = crtc->state;  in lsdc_crtc_mode_set_nofb()
840 static void lsdc_crtc_send_vblank(struct drm_crtc *crtc)  in lsdc_crtc_send_vblank()  argument
842 	struct drm_device *ddev = crtc->dev;  in lsdc_crtc_send_vblank()
845 	if (!crtc->state || !crtc->state->event)  in lsdc_crtc_send_vblank()
851 	drm_crtc_send_vblank_event(crtc, crtc->state->event);  in lsdc_crtc_send_vblank()
852 	crtc->state->event = NULL;  in lsdc_crtc_send_vblank()
856 static void lsdc_crtc_atomic_enable(struct drm_crtc *crtc,  in lsdc_crtc_atomic_enable()  argument
859 	struct lsdc_crtc *lcrtc = to_lsdc_crtc(crtc);  in lsdc_crtc_atomic_enable()
862 		drm_crtc_vblank_on(crtc);  in lsdc_crtc_atomic_enable()
867 static void lsdc_crtc_atomic_disable(struct drm_crtc *crtc,  in lsdc_crtc_atomic_disable()  argument
870 	struct lsdc_crtc *lcrtc = to_lsdc_crtc(crtc);  in lsdc_crtc_atomic_disable()
873 		drm_crtc_vblank_off(crtc);  in lsdc_crtc_atomic_disable()
878 	 * Make sure we issue a vblank event after disabling the CRTC if  in lsdc_crtc_atomic_disable()
881 	lsdc_crtc_send_vblank(crtc);  in lsdc_crtc_atomic_disable()
884 static void lsdc_crtc_atomic_flush(struct drm_crtc *crtc,  in lsdc_crtc_atomic_flush()  argument
887 	spin_lock_irq(&crtc->dev->event_lock);  in lsdc_crtc_atomic_flush()
888 	if (crtc->state->event) {  in lsdc_crtc_atomic_flush()
889 		if (drm_crtc_vblank_get(crtc) == 0)  in lsdc_crtc_atomic_flush()
890 			drm_crtc_arm_vblank_event(crtc, crtc->state->event);  in lsdc_crtc_atomic_flush()
892 			drm_crtc_send_vblank_event(crtc, crtc->state->event);  in lsdc_crtc_atomic_flush()
893 		crtc->state->event = NULL;  in lsdc_crtc_atomic_flush()
895 	spin_unlock_irq(&crtc->dev->event_lock);  in lsdc_crtc_atomic_flush()
898 static bool lsdc_crtc_get_scanout_position(struct drm_crtc *crtc,  in lsdc_crtc_get_scanout_position()  argument
906 	struct lsdc_crtc *lcrtc = to_lsdc_crtc(crtc);  in lsdc_crtc_get_scanout_position()
950 		       struct drm_crtc *crtc,  in ls7a1000_crtc_init()  argument
956 	struct lsdc_crtc *lcrtc = to_lsdc_crtc(crtc);  in ls7a1000_crtc_init()
969 	ret = drm_crtc_init_with_planes(ddev, crtc, primary, cursor,  in ls7a1000_crtc_init()
971 					"LS-CRTC-%d", index);  in ls7a1000_crtc_init()
973 		drm_err(ddev, "crtc init with planes failed: %d\n", ret);  in ls7a1000_crtc_init()
977 	drm_crtc_helper_add(crtc, &lsdc_crtc_helper_funcs);  in ls7a1000_crtc_init()
979 	ret = drm_mode_crtc_set_gamma_size(crtc, 256);  in ls7a1000_crtc_init()
983 	drm_crtc_enable_color_mgmt(crtc, 0, false, 256);  in ls7a1000_crtc_init()
989 		       struct drm_crtc *crtc,  in ls7a2000_crtc_init()  argument
995 	struct lsdc_crtc *lcrtc = to_lsdc_crtc(crtc);  in ls7a2000_crtc_init()
1000 		drm_err(ddev, "crtc init with pll failed: %d\n", ret);  in ls7a2000_crtc_init()
1008 	ret = drm_crtc_init_with_planes(ddev, crtc, primary, cursor,  in ls7a2000_crtc_init()
1010 					"LS-CRTC-%u", index);  in ls7a2000_crtc_init()
1012 		drm_err(ddev, "crtc init with planes failed: %d\n", ret);  in ls7a2000_crtc_init()
1016 	drm_crtc_helper_add(crtc, &lsdc_crtc_helper_funcs);  in ls7a2000_crtc_init()
1018 	ret = drm_mode_crtc_set_gamma_size(crtc, 256);  in ls7a2000_crtc_init()
1022 	drm_crtc_enable_color_mgmt(crtc, 0, false, 256);  in ls7a2000_crtc_init()