1 // SPDX-License-Identifier: GPL-2.0-only
6  * Author: Jean-Jacques Hiblot <jjhiblot@traphandler.com>
7  * Author: Boris BREZILLON <boris.brezillon@free-electrons.com>
11 #include <linux/media-bus-format.h>
12 #include <linux/mfd/atmel-hlcdc.h>
29  * struct atmel_hlcdc_crtc_state - Atmel HLCDC CRTC state structure
48  * struct atmel_hlcdc_crtc - Atmel HLCDC CRTC structure
51  * @dc: pointer to the atmel_hlcdc structure provided by the MFD device
53  * @id: CRTC id (returned by drm_crtc_index)
57 	struct atmel_hlcdc_dc *dc;  member
59 	int id;  member
71 	struct regmap *regmap = crtc->dc->hlcdc->regmap;  in atmel_hlcdc_crtc_mode_set_nofb()
72 	struct drm_display_mode *adj = &c->state->adjusted_mode;  in atmel_hlcdc_crtc_mode_set_nofb()
76 	struct drm_device *ddev = c->dev;  in atmel_hlcdc_crtc_mode_set_nofb()
87 		if (en_iter->crtc == c) {  in atmel_hlcdc_crtc_mode_set_nofb()
97 			if (connector->encoder == encoder)  in atmel_hlcdc_crtc_mode_set_nofb()
102 	ret = clk_prepare_enable(crtc->dc->hlcdc->sys_clk);  in atmel_hlcdc_crtc_mode_set_nofb()
106 	vm.vfront_porch = adj->crtc_vsync_start - adj->crtc_vdisplay;  in atmel_hlcdc_crtc_mode_set_nofb()
107 	vm.vback_porch = adj->crtc_vtotal - adj->crtc_vsync_end;  in atmel_hlcdc_crtc_mode_set_nofb()
108 	vm.vsync_len = adj->crtc_vsync_end - adj->crtc_vsync_start;  in atmel_hlcdc_crtc_mode_set_nofb()
109 	vm.hfront_porch = adj->crtc_hsync_start - adj->crtc_hdisplay;  in atmel_hlcdc_crtc_mode_set_nofb()
110 	vm.hback_porch = adj->crtc_htotal - adj->crtc_hsync_end;  in atmel_hlcdc_crtc_mode_set_nofb()
111 	vm.hsync_len = adj->crtc_hsync_end - adj->crtc_hsync_start;  in atmel_hlcdc_crtc_mode_set_nofb()
114 		     (vm.hsync_len - 1) | ((vm.vsync_len - 1) << 16));  in atmel_hlcdc_crtc_mode_set_nofb()
117 		     (vm.vfront_porch - 1) | (vm.vback_porch << 16));  in atmel_hlcdc_crtc_mode_set_nofb()
120 		     (vm.hfront_porch - 1) | ((vm.hback_porch - 1) << 16));  in atmel_hlcdc_crtc_mode_set_nofb()
123 		     (adj->crtc_hdisplay - 1) |  in atmel_hlcdc_crtc_mode_set_nofb()
124 		     ((adj->crtc_vdisplay - 1) << 16));  in atmel_hlcdc_crtc_mode_set_nofb()
126 	prate = clk_get_rate(crtc->dc->hlcdc->sys_clk);  in atmel_hlcdc_crtc_mode_set_nofb()
127 	mode_rate = adj->crtc_clock * 1000;  in atmel_hlcdc_crtc_mode_set_nofb()
128 	if (!crtc->dc->desc->fixed_clksrc) {  in atmel_hlcdc_crtc_mode_set_nofb()
148 		    (10 * (prate / div_low - mode_rate) <  in atmel_hlcdc_crtc_mode_set_nofb()
149 		     (mode_rate - prate / div)))  in atmel_hlcdc_crtc_mode_set_nofb()
161 	    connector->display_info.bus_flags & DRM_BUS_FLAG_PIXDATA_DRIVE_NEGEDGE)  in atmel_hlcdc_crtc_mode_set_nofb()
166 	state = drm_crtc_state_to_atmel_hlcdc_crtc_state(c->state);  in atmel_hlcdc_crtc_mode_set_nofb()
167 	cfg = state->output_mode << 8;  in atmel_hlcdc_crtc_mode_set_nofb()
169 	if (!crtc->dc->desc->is_xlcdc) {  in atmel_hlcdc_crtc_mode_set_nofb()
170 		if (adj->flags & DRM_MODE_FLAG_NVSYNC)  in atmel_hlcdc_crtc_mode_set_nofb()
173 		if (adj->flags & DRM_MODE_FLAG_NHSYNC)  in atmel_hlcdc_crtc_mode_set_nofb()
176 		cfg |= state->dpi << 11;  in atmel_hlcdc_crtc_mode_set_nofb()
185 			   (crtc->dc->desc->is_xlcdc ? ATMEL_XLCDC_MODE_MASK |  in atmel_hlcdc_crtc_mode_set_nofb()
189 	clk_disable_unprepare(crtc->dc->hlcdc->sys_clk);  in atmel_hlcdc_crtc_mode_set_nofb()
198 	return atmel_hlcdc_dc_mode_valid(crtc->dc, mode);  in atmel_hlcdc_crtc_mode_valid()
204 	struct drm_device *dev = c->dev;  in atmel_hlcdc_crtc_atomic_disable()
206 	struct regmap *regmap = crtc->dc->hlcdc->regmap;  in atmel_hlcdc_crtc_atomic_disable()
211 	pm_runtime_get_sync(dev->dev);  in atmel_hlcdc_crtc_atomic_disable()
213 	if (crtc->dc->desc->is_xlcdc) {  in atmel_hlcdc_crtc_atomic_disable()
218 			dev_warn(dev->dev, "Atmel LCDC status register CMSTS timeout\n");  in atmel_hlcdc_crtc_atomic_disable()
224 			dev_warn(dev->dev, "Atmel LCDC status register SDSTS timeout\n");  in atmel_hlcdc_crtc_atomic_disable()
231 		dev_warn(dev->dev, "Atmel LCDC status register DISPSTS timeout\n");  in atmel_hlcdc_crtc_atomic_disable()
237 		dev_warn(dev->dev, "Atmel LCDC status register LCDSTS timeout\n");  in atmel_hlcdc_crtc_atomic_disable()
243 		dev_warn(dev->dev, "Atmel LCDC status register CLKSTS timeout\n");  in atmel_hlcdc_crtc_atomic_disable()
245 	clk_disable_unprepare(crtc->dc->hlcdc->sys_clk);  in atmel_hlcdc_crtc_atomic_disable()
246 	pinctrl_pm_select_sleep_state(dev->dev);  in atmel_hlcdc_crtc_atomic_disable()
248 	pm_runtime_allow(dev->dev);  in atmel_hlcdc_crtc_atomic_disable()
250 	pm_runtime_put_sync(dev->dev);  in atmel_hlcdc_crtc_atomic_disable()
256 	struct drm_device *dev = c->dev;  in atmel_hlcdc_crtc_atomic_enable()
258 	struct regmap *regmap = crtc->dc->hlcdc->regmap;  in atmel_hlcdc_crtc_atomic_enable()
261 	pm_runtime_get_sync(dev->dev);  in atmel_hlcdc_crtc_atomic_enable()
263 	pm_runtime_forbid(dev->dev);  in atmel_hlcdc_crtc_atomic_enable()
265 	pinctrl_pm_select_default_state(dev->dev);  in atmel_hlcdc_crtc_atomic_enable()
266 	clk_prepare_enable(crtc->dc->hlcdc->sys_clk);  in atmel_hlcdc_crtc_atomic_enable()
272 		dev_warn(dev->dev, "Atmel LCDC status register CLKSTS timeout\n");  in atmel_hlcdc_crtc_atomic_enable()
278 		dev_warn(dev->dev, "Atmel LCDC status register LCDSTS timeout\n");  in atmel_hlcdc_crtc_atomic_enable()
284 		dev_warn(dev->dev, "Atmel LCDC status register DISPSTS timeout\n");  in atmel_hlcdc_crtc_atomic_enable()
286 	if (crtc->dc->desc->is_xlcdc) {  in atmel_hlcdc_crtc_atomic_enable()
291 			dev_warn(dev->dev, "Atmel LCDC status register CMSTS timeout\n");  in atmel_hlcdc_crtc_atomic_enable()
297 			dev_warn(dev->dev, "Atmel LCDC status register SDSTS timeout\n");  in atmel_hlcdc_crtc_atomic_enable()
300 	pm_runtime_put_sync(dev->dev);  in atmel_hlcdc_crtc_atomic_enable()
335 		return -EINVAL;  in atmel_xlcdc_connector_output_dsi()
338 	for (j = 0; j < info->num_bus_formats; j++) {  in atmel_xlcdc_connector_output_dsi()
339 		switch (info->bus_formats[j]) {  in atmel_xlcdc_connector_output_dsi()
361 	struct drm_connector *connector = state->connector;  in atmel_hlcdc_connector_output_mode()
362 	struct drm_display_info *info = &connector->display_info;  in atmel_hlcdc_connector_output_mode()
367 	encoder = state->best_encoder;  in atmel_hlcdc_connector_output_mode()
369 		encoder = connector->encoder;  in atmel_hlcdc_connector_output_mode()
371 	 * atmel-hlcdc to support DSI formats with DSI video pipeline  in atmel_hlcdc_connector_output_mode()
375 	if (encoder->encoder_type == DRM_MODE_ENCODER_DSI)  in atmel_hlcdc_connector_output_mode()
390 		return -EINVAL;  in atmel_hlcdc_connector_output_mode()
393 	for (j = 0; j < info->num_bus_formats; j++) {  in atmel_hlcdc_connector_output_mode()
394 		switch (info->bus_formats[j]) {  in atmel_hlcdc_connector_output_mode()
424 	crtc = drm_crtc_to_atmel_hlcdc_crtc(state->crtc);  in atmel_hlcdc_crtc_select_output_mode()
425 	output_fmts = crtc->dc->desc->is_xlcdc ? ATMEL_XLCDC_OUTPUT_MODE_MASK :  in atmel_hlcdc_crtc_select_output_mode()
428 	for_each_new_connector_in_state(state->state, connector, cstate, i) {  in atmel_hlcdc_crtc_select_output_mode()
431 		if (!cstate->crtc)  in atmel_hlcdc_crtc_select_output_mode()
436 		if (crtc->dc->desc->conflicting_output_formats)  in atmel_hlcdc_crtc_select_output_mode()
443 		return -EINVAL;  in atmel_hlcdc_crtc_select_output_mode()
446 	hstate->output_mode = fls(output_fmts) - 1;  in atmel_hlcdc_crtc_select_output_mode()
447 	if (crtc->dc->desc->is_xlcdc) {  in atmel_hlcdc_crtc_select_output_mode()
450 			hstate->output_mode -= 4;  in atmel_hlcdc_crtc_select_output_mode()
451 			hstate->dpi = 1;  in atmel_hlcdc_crtc_select_output_mode()
453 			hstate->dpi = 0;  in atmel_hlcdc_crtc_select_output_mode()
488 	spin_lock_irqsave(&c->dev->event_lock, flags);  in atmel_hlcdc_crtc_atomic_flush()
490 	if (c->state->event) {  in atmel_hlcdc_crtc_atomic_flush()
491 		c->state->event->pipe = drm_crtc_index(c);  in atmel_hlcdc_crtc_atomic_flush()
495 		crtc->event = c->state->event;  in atmel_hlcdc_crtc_atomic_flush()
496 		c->state->event = NULL;  in atmel_hlcdc_crtc_atomic_flush()
498 	spin_unlock_irqrestore(&c->dev->event_lock, flags);  in atmel_hlcdc_crtc_atomic_flush()
521 	struct drm_device *dev = crtc->base.dev;  in atmel_hlcdc_crtc_finish_page_flip()
524 	spin_lock_irqsave(&dev->event_lock, flags);  in atmel_hlcdc_crtc_finish_page_flip()
525 	if (crtc->event) {  in atmel_hlcdc_crtc_finish_page_flip()
526 		drm_crtc_send_vblank_event(&crtc->base, crtc->event);  in atmel_hlcdc_crtc_finish_page_flip()
527 		drm_crtc_vblank_put(&crtc->base);  in atmel_hlcdc_crtc_finish_page_flip()
528 		crtc->event = NULL;  in atmel_hlcdc_crtc_finish_page_flip()
530 	spin_unlock_irqrestore(&dev->event_lock, flags);  in atmel_hlcdc_crtc_finish_page_flip()
543 	if (crtc->state) {  in atmel_hlcdc_crtc_reset()
544 		__drm_atomic_helper_crtc_destroy_state(crtc->state);  in atmel_hlcdc_crtc_reset()
545 		state = drm_crtc_state_to_atmel_hlcdc_crtc_state(crtc->state);  in atmel_hlcdc_crtc_reset()
547 		crtc->state = NULL;  in atmel_hlcdc_crtc_reset()
552 		__drm_atomic_helper_crtc_reset(crtc, &state->base);  in atmel_hlcdc_crtc_reset()
561 	if (WARN_ON(!crtc->state))  in atmel_hlcdc_crtc_duplicate_state()
567 	__drm_atomic_helper_crtc_duplicate_state(crtc, &state->base);  in atmel_hlcdc_crtc_duplicate_state()
569 	cur = drm_crtc_state_to_atmel_hlcdc_crtc_state(crtc->state);  in atmel_hlcdc_crtc_duplicate_state()
570 	state->output_mode = cur->output_mode;  in atmel_hlcdc_crtc_duplicate_state()
571 	if (c->dc->desc->is_xlcdc)  in atmel_hlcdc_crtc_duplicate_state()
572 		state->dpi = cur->dpi;  in atmel_hlcdc_crtc_duplicate_state()
574 	return &state->base;  in atmel_hlcdc_crtc_duplicate_state()
590 	struct regmap *regmap = crtc->dc->hlcdc->regmap;  in atmel_hlcdc_crtc_enable_vblank()
601 	struct regmap *regmap = crtc->dc->hlcdc->regmap;  in atmel_hlcdc_crtc_disable_vblank()
620 	struct atmel_hlcdc_dc *dc = dev->dev_private;  in atmel_hlcdc_crtc_create()  local
627 		return -ENOMEM;  in atmel_hlcdc_crtc_create()
629 	crtc->dc = dc;  in atmel_hlcdc_crtc_create()
632 		if (!dc->layers[i])  in atmel_hlcdc_crtc_create()
635 		switch (dc->layers[i]->desc->type) {  in atmel_hlcdc_crtc_create()
637 			primary = atmel_hlcdc_layer_to_plane(dc->layers[i]);  in atmel_hlcdc_crtc_create()
641 			cursor = atmel_hlcdc_layer_to_plane(dc->layers[i]);  in atmel_hlcdc_crtc_create()
649 	ret = drm_crtc_init_with_planes(dev, &crtc->base, &primary->base,  in atmel_hlcdc_crtc_create()
650 					&cursor->base, &atmel_hlcdc_crtc_funcs,  in atmel_hlcdc_crtc_create()
655 	crtc->id = drm_crtc_index(&crtc->base);  in atmel_hlcdc_crtc_create()
660 		if (dc->layers[i] &&  in atmel_hlcdc_crtc_create()
661 		    dc->layers[i]->desc->type == ATMEL_HLCDC_OVERLAY_LAYER) {  in atmel_hlcdc_crtc_create()
662 			overlay = atmel_hlcdc_layer_to_plane(dc->layers[i]);  in atmel_hlcdc_crtc_create()
663 			overlay->base.possible_crtcs = 1 << crtc->id;  in atmel_hlcdc_crtc_create()
667 	drm_crtc_helper_add(&crtc->base, &lcdc_crtc_helper_funcs);  in atmel_hlcdc_crtc_create()
669 	drm_mode_crtc_set_gamma_size(&crtc->base, ATMEL_HLCDC_CLUT_SIZE);  in atmel_hlcdc_crtc_create()
670 	drm_crtc_enable_color_mgmt(&crtc->base, 0, false,  in atmel_hlcdc_crtc_create()
673 	dc->crtc = &crtc->base;  in atmel_hlcdc_crtc_create()
678 	atmel_hlcdc_crtc_destroy(&crtc->base);  in atmel_hlcdc_crtc_create()