1 // SPDX-License-Identifier: GPL-2.0-only
6  * Copyright (C) 2006-2008 Intel Corporation
14 #include <linux/dma-buf.h>
34 	stat = readl(priv->regs + TVE200_INT_STAT);  in tve200_irq()
51 		val = readl(priv->regs + TVE200_CTRL);  in tve200_irq()
54 			drm_crtc_handle_vblank(&priv->pipe.crtc);  in tve200_irq()
61 		writel(val, priv->regs + TVE200_CTRL);  in tve200_irq()
63 		dev_err(priv->drm->dev, "stray IRQ %08x\n", stat);  in tve200_irq()
66 	writel(stat, priv->regs + TVE200_INT_CLR);  in tve200_irq()
75 	const struct drm_display_mode *mode = &cstate->mode;  in tve200_display_check()
76 	struct drm_framebuffer *old_fb = pipe->plane.state->fb;  in tve200_display_check()
77 	struct drm_framebuffer *fb = pstate->fb;  in tve200_display_check()
82 	if (!(mode->hdisplay == 352 && mode->vdisplay == 240) && /* SIF(525) */  in tve200_display_check()
83 	    !(mode->hdisplay == 352 && mode->vdisplay == 288) && /* CIF(625) */  in tve200_display_check()
84 	    !(mode->hdisplay == 640 && mode->vdisplay == 480) && /* VGA */  in tve200_display_check()
85 	    !(mode->hdisplay == 720 && mode->vdisplay == 480) && /* D1 */  in tve200_display_check()
86 	    !(mode->hdisplay == 720 && mode->vdisplay == 576)) { /* D1 */  in tve200_display_check()
88 			mode->hdisplay, mode->vdisplay);  in tve200_display_check()
89 		return -EINVAL;  in tve200_display_check()
97 			DRM_DEBUG_KMS("FB not 32-bit aligned\n");  in tve200_display_check()
98 			return -EINVAL;  in tve200_display_check()
105 		if (fb->pitches[0] != mode->hdisplay * fb->format->cpp[0]) {  in tve200_display_check()
107 			return -EINVAL;  in tve200_display_check()
111 		 * We can't change the FB format in a flicker-free  in tve200_display_check()
114 		if (old_fb && old_fb->format != fb->format)  in tve200_display_check()
115 			cstate->mode_changed = true;  in tve200_display_check()
125 	struct drm_crtc *crtc = &pipe->crtc;  in tve200_display_enable()
126 	struct drm_plane *plane = &pipe->plane;  in tve200_display_enable()
127 	struct drm_device *drm = crtc->dev;  in tve200_display_enable()
128 	struct tve200_drm_dev_private *priv = drm->dev_private;  in tve200_display_enable()
129 	const struct drm_display_mode *mode = &cstate->mode;  in tve200_display_enable()
130 	struct drm_framebuffer *fb = plane->state->fb;  in tve200_display_enable()
131 	struct drm_connector *connector = priv->connector;  in tve200_display_enable()
132 	u32 format = fb->format->format;  in tve200_display_enable()  local
136 	clk_prepare_enable(priv->clk);  in tve200_display_enable()
139 	writel(TVE200_CTRL_4_RESET, priv->regs + TVE200_CTRL_4);  in tve200_display_enable()
142 		if (readl(priv->regs + TVE200_CTRL_4) & TVE200_CTRL_4_RESET)  in tve200_display_enable()
148 	    readl(priv->regs + TVE200_CTRL_4) & TVE200_CTRL_4_RESET) {  in tve200_display_enable()
149 		dev_err(drm->dev, "can't get hardware out of reset\n");  in tve200_display_enable()
167 	if (connector->display_info.bus_flags &  in tve200_display_enable()
171 	if ((mode->hdisplay == 352 && mode->vdisplay == 240) || /* SIF(525) */  in tve200_display_enable()
172 	    (mode->hdisplay == 352 && mode->vdisplay == 288)) { /* CIF(625) */  in tve200_display_enable()
174 		dev_info(drm->dev, "CIF mode\n");  in tve200_display_enable()
175 	} else if (mode->hdisplay == 640 && mode->vdisplay == 480) {  in tve200_display_enable()
177 		dev_info(drm->dev, "VGA mode\n");  in tve200_display_enable()
178 	} else if ((mode->hdisplay == 720 && mode->vdisplay == 480) ||  in tve200_display_enable()
179 		   (mode->hdisplay == 720 && mode->vdisplay == 576)) {  in tve200_display_enable()
181 		dev_info(drm->dev, "D1 mode\n");  in tve200_display_enable()
184 	if (format & DRM_FORMAT_BIG_ENDIAN) {  in tve200_display_enable()
186 		format &= ~DRM_FORMAT_BIG_ENDIAN;  in tve200_display_enable()
189 	switch (format) {  in tve200_display_enable()
229 		dev_err(drm->dev, "Unknown FB format 0x%08x\n",  in tve200_display_enable()
230 			fb->format->format);  in tve200_display_enable()
237 	writel(ctrl1, priv->regs + TVE200_CTRL);  in tve200_display_enable()
244 	struct drm_crtc *crtc = &pipe->crtc;  in tve200_display_disable()
245 	struct drm_device *drm = crtc->dev;  in tve200_display_disable()
246 	struct tve200_drm_dev_private *priv = drm->dev_private;  in tve200_display_disable()
251 	writel(0, priv->regs + TVE200_CTRL);  in tve200_display_disable()
252 	writel(TVE200_CTRL_4_RESET, priv->regs + TVE200_CTRL_4);  in tve200_display_disable()
254 	clk_disable_unprepare(priv->clk);  in tve200_display_disable()
260 	struct drm_crtc *crtc = &pipe->crtc;  in tve200_display_update()
261 	struct drm_device *drm = crtc->dev;  in tve200_display_update()
262 	struct tve200_drm_dev_private *priv = drm->dev_private;  in tve200_display_update()
263 	struct drm_pending_vblank_event *event = crtc->state->event;  in tve200_display_update()
264 	struct drm_plane *plane = &pipe->plane;  in tve200_display_update()
265 	struct drm_plane_state *pstate = plane->state;  in tve200_display_update()
266 	struct drm_framebuffer *fb = pstate->fb;  in tve200_display_update()
271 		       priv->regs + TVE200_Y_FRAME_BASE_ADDR);  in tve200_display_update()
274 		if (fb->format->format == DRM_FORMAT_YUV420) {  in tve200_display_update()
276 			       priv->regs + TVE200_U_FRAME_BASE_ADDR);  in tve200_display_update()
278 			       priv->regs + TVE200_V_FRAME_BASE_ADDR);  in tve200_display_update()
283 		crtc->state->event = NULL;  in tve200_display_update()
285 		spin_lock_irq(&crtc->dev->event_lock);  in tve200_display_update()
286 		if (crtc->state->active && drm_crtc_vblank_get(crtc) == 0)  in tve200_display_update()
290 		spin_unlock_irq(&crtc->dev->event_lock);  in tve200_display_update()
296 	struct drm_crtc *crtc = &pipe->crtc;  in tve200_display_enable_vblank()
297 	struct drm_device *drm = crtc->dev;  in tve200_display_enable_vblank()
298 	struct tve200_drm_dev_private *priv = drm->dev_private;  in tve200_display_enable_vblank()
301 	writel(0xFF, priv->regs + TVE200_INT_CLR);  in tve200_display_enable_vblank()
302 	writel(TVE200_INT_V_STATUS, priv->regs + TVE200_INT_EN);  in tve200_display_enable_vblank()
308 	struct drm_crtc *crtc = &pipe->crtc;  in tve200_display_disable_vblank()
309 	struct drm_device *drm = crtc->dev;  in tve200_display_disable_vblank()
310 	struct tve200_drm_dev_private *priv = drm->dev_private;  in tve200_display_disable_vblank()
312 	writel(0, priv->regs + TVE200_INT_EN);  in tve200_display_disable_vblank()
326 	struct tve200_drm_dev_private *priv = drm->dev_private;  in tve200_display_init()
348 	ret = drm_simple_display_pipe_init(drm, &priv->pipe,  in tve200_display_init()
352 					   priv->connector);  in tve200_display_init()