1 // SPDX-License-Identifier: GPL-2.0-only
11 #include <linux/bitfield.h>
119  * same actual count. This makes sense once you read above a couple of
126 	while (actual_count--) {  in udl_lfsr16()
150 	u16 reg01 = mode->crtc_htotal - mode->crtc_hsync_start;  in udl_set_display_mode()
151 	u16 reg03 = reg01 + mode->crtc_hdisplay;  in udl_set_display_mode()
152 	u16 reg05 = mode->crtc_vtotal - mode->crtc_vsync_start;  in udl_set_display_mode()
153 	u16 reg07 = reg05 + mode->crtc_vdisplay;  in udl_set_display_mode()
154 	u16 reg09 = mode->crtc_htotal - 1;  in udl_set_display_mode()
156 	u16 reg0d = mode->crtc_hsync_end - mode->crtc_hsync_start + 1;  in udl_set_display_mode()
157 	u16 reg0f = mode->hdisplay;  in udl_set_display_mode()
158 	u16 reg11 = mode->crtc_vtotal;  in udl_set_display_mode()
160 	u16 reg15 = mode->crtc_vsync_end - mode->crtc_vsync_start;  in udl_set_display_mode()
161 	u16 reg17 = mode->crtc_vdisplay;  in udl_set_display_mode()
162 	u16 reg1b = mode->clock / 5;  in udl_set_display_mode()
198 		return -EINVAL;  in udl_log_cpp()
206 	struct drm_device *dev = fb->dev;  in udl_handle_damage()
207 	void *vaddr = map->vaddr; /* TODO: Use mapping abstraction properly */  in udl_handle_damage()
213 	ret = udl_log_cpp(fb->format->cpp[0]);  in udl_handle_damage()
220 		return -ENOMEM;  in udl_handle_damage()
221 	cmd = urb->transfer_buffer;  in udl_handle_damage()
223 	for (i = clip->y1; i < clip->y2; i++) {  in udl_handle_damage()
224 		const int line_offset = fb->pitches[0] * i;  in udl_handle_damage()
225 		const int byte_offset = line_offset + (clip->x1 << log_bpp);  in udl_handle_damage()
226 		const int dev_byte_offset = (fb->width * i + clip->x1) << log_bpp;  in udl_handle_damage()
235 	if (cmd > (char *)urb->transfer_buffer) {  in udl_handle_damage()
238 		if (cmd < (char *)urb->transfer_buffer + urb->transfer_buffer_length)  in udl_handle_damage()
240 		len = cmd - (char *)urb->transfer_buffer;  in udl_handle_damage()
267 	struct drm_crtc *new_crtc = new_plane_state->crtc;  in udl_primary_plane_helper_atomic_check()
282 	struct drm_device *dev = plane->dev;  in udl_primary_plane_helper_atomic_update()
285 	struct drm_framebuffer *fb = plane_state->fb;  in udl_primary_plane_helper_atomic_update()
303 		udl_handle_damage(fb, &shadow_plane_state->data[0], &damage);  in udl_primary_plane_helper_atomic_update()
331 	struct drm_device *dev = crtc->dev;  in udl_crtc_helper_atomic_enable()
333 	struct drm_display_mode *mode = &crtc_state->mode;  in udl_crtc_helper_atomic_enable()
345 	buf = (char *)urb->transfer_buffer;  in udl_crtc_helper_atomic_enable()
351 	buf = udl_set_base8bpp(buf, 2 * mode->vdisplay * mode->hdisplay);  in udl_crtc_helper_atomic_enable()
357 	udl_submit_urb(dev, urb, buf - (char *)urb->transfer_buffer);  in udl_crtc_helper_atomic_enable()
365 	struct drm_device *dev = crtc->dev;  in udl_crtc_helper_atomic_disable()
377 	buf = (char *)urb->transfer_buffer;  in udl_crtc_helper_atomic_disable()
383 	udl_submit_urb(dev, urb, buf - (char *)urb->transfer_buffer);  in udl_crtc_helper_atomic_disable()
420 	drm_connector_update_edid_property(connector, udl_connector->edid);  in udl_connector_helper_get_modes()
421 	if (udl_connector->edid)  in udl_connector_helper_get_modes()
422 		return drm_add_edid_modes(connector, udl_connector->edid);  in udl_connector_helper_get_modes()
434 	struct drm_device *dev = &udl->drm;  in udl_get_edid_block()
442 		return -ENOMEM;  in udl_get_edid_block()
454 			ret = -EIO;  in udl_get_edid_block()
473 	struct drm_device *dev = connector->dev;  in udl_connector_detect()
480 	kfree(udl_connector->edid);  in udl_connector_detect()
481 	udl_connector->edid = NULL;  in udl_connector_detect()
486 	udl_connector->edid = drm_do_get_edid(connector, udl_get_edid_block, udl);  in udl_connector_detect()
487 	if (udl_connector->edid)  in udl_connector_detect()
500 	kfree(udl_connector->edid);  in udl_connector_destroy()
521 		return ERR_PTR(-ENOMEM);  in udl_connector_init()
523 	connector = &udl_connector->connector;  in udl_connector_init()
530 	connector->polled = DRM_CONNECTOR_POLL_HPD |  in udl_connector_init()
550 	if (udl->sku_pixel_limit) {  in udl_mode_config_mode_valid()
551 		if (mode->vdisplay * mode->hdisplay > udl->sku_pixel_limit)  in udl_mode_config_mode_valid()
578 	dev->mode_config.min_width = 640;  in udl_modeset_init()
579 	dev->mode_config.min_height = 480;  in udl_modeset_init()
580 	dev->mode_config.max_width = 2048;  in udl_modeset_init()
581 	dev->mode_config.max_height = 2048;  in udl_modeset_init()
582 	dev->mode_config.preferred_depth = 16;  in udl_modeset_init()
583 	dev->mode_config.funcs = &udl_mode_config_funcs;  in udl_modeset_init()
585 	primary_plane = &udl->primary_plane;  in udl_modeset_init()
597 	crtc = &udl->crtc;  in udl_modeset_init()
604 	encoder = &udl->encoder;  in udl_modeset_init()
608 	encoder->possible_crtcs = drm_crtc_mask(crtc);  in udl_modeset_init()