fbdev: sh_mobile_lcdc: Pass a video mode to the notify callback

Pass pointers to struct fb_videomode and struct fb_monspecs instead of
struct fb_var_screeninfo to the notify callback.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

drivers/video/sh_mobile_hdmi.c

@@ -220,7 +220,7 @@ struct sh_hdmi {
 	struct clk *hdmi_clk;
 	struct device *dev;
 	struct delayed_work edid_work;
-	struct fb_var_screeninfo var;
+	struct fb_videomode mode;
 	struct fb_monspecs monspec;
 };
 
@@ -291,24 +291,24 @@ static struct snd_soc_codec_driver soc_codec_dev_sh_hdmi = {
 /* External video parameter settings */
 static void sh_hdmi_external_video_param(struct sh_hdmi *hdmi)
 {
-	struct fb_var_screeninfo *var = &hdmi->var;
+	struct fb_videomode *mode = &hdmi->mode;
 	u16 htotal, hblank, hdelay, vtotal, vblank, vdelay, voffset;
 	u8 sync = 0;
 
-	htotal = var->xres + var->right_margin + var->left_margin + var->hsync_len;
-
-	hdelay = var->hsync_len + var->left_margin;
-	hblank = var->right_margin + hdelay;
+	htotal = mode->xres + mode->right_margin + mode->left_margin
+	       + mode->hsync_len;
+	hdelay = mode->hsync_len + mode->left_margin;
+	hblank = mode->right_margin + hdelay;
 
 	/*
 	 * Vertical timing looks a bit different in Figure 18,
 	 * but let's try the same first by setting offset = 0
 	 */
-	vtotal = var->yres + var->upper_margin + var->lower_margin + var->vsync_len;
-
-	vdelay = var->vsync_len + var->upper_margin;
-	vblank = var->lower_margin + vdelay;
-	voffset = min(var->upper_margin / 2, 6U);
+	vtotal = mode->yres + mode->upper_margin + mode->lower_margin
+	       + mode->vsync_len;
+	vdelay = mode->vsync_len + mode->upper_margin;
+	vblank = mode->lower_margin + vdelay;
+	voffset = min(mode->upper_margin / 2, 6U);
 
 	/*
 	 * [3]: VSYNC polarity: Positive
@@ -316,14 +316,14 @@ static void sh_hdmi_external_video_param(struct sh_hdmi *hdmi)
 	 * [1]: Interlace/Progressive: Progressive
 	 * [0]: External video settings enable: used.
 	 */
-	if (var->sync & FB_SYNC_HOR_HIGH_ACT)
+	if (mode->sync & FB_SYNC_HOR_HIGH_ACT)
 		sync |= 4;
-	if (var->sync & FB_SYNC_VERT_HIGH_ACT)
+	if (mode->sync & FB_SYNC_VERT_HIGH_ACT)
 		sync |= 8;
 
 	dev_dbg(hdmi->dev, "H: %u, %u, %u, %u; V: %u, %u, %u, %u; sync 0x%x\n",
-		htotal, hblank, hdelay, var->hsync_len,
-		vtotal, vblank, vdelay, var->vsync_len, sync);
+		htotal, hblank, hdelay, mode->hsync_len,
+		vtotal, vblank, vdelay, mode->vsync_len, sync);
 
 	hdmi_write(hdmi, sync | (voffset << 4), HDMI_EXTERNAL_VIDEO_PARAM_SETTINGS);
 
@@ -336,8 +336,8 @@ static void sh_hdmi_external_video_param(struct sh_hdmi *hdmi)
 	hdmi_write(hdmi, hdelay, HDMI_EXTERNAL_H_DELAY_7_0);
 	hdmi_write(hdmi, hdelay >> 8, HDMI_EXTERNAL_H_DELAY_9_8);
 
-	hdmi_write(hdmi, var->hsync_len, HDMI_EXTERNAL_H_DURATION_7_0);
-	hdmi_write(hdmi, var->hsync_len >> 8, HDMI_EXTERNAL_H_DURATION_9_8);
+	hdmi_write(hdmi, mode->hsync_len, HDMI_EXTERNAL_H_DURATION_7_0);
+	hdmi_write(hdmi, mode->hsync_len >> 8, HDMI_EXTERNAL_H_DURATION_9_8);
 
 	hdmi_write(hdmi, vtotal, HDMI_EXTERNAL_V_TOTAL_7_0);
 	hdmi_write(hdmi, vtotal >> 8, HDMI_EXTERNAL_V_TOTAL_9_8);
@@ -346,7 +346,7 @@ static void sh_hdmi_external_video_param(struct sh_hdmi *hdmi)
 
 	hdmi_write(hdmi, vdelay, HDMI_EXTERNAL_V_DELAY);
 
-	hdmi_write(hdmi, var->vsync_len, HDMI_EXTERNAL_V_DURATION);
+	hdmi_write(hdmi, mode->vsync_len, HDMI_EXTERNAL_V_DURATION);
 
 	/* Set bit 0 of HDMI_EXTERNAL_VIDEO_PARAM_SETTINGS here for external mode */
 	if (!hdmi->preprogrammed_vic)
@@ -473,7 +473,7 @@ static void sh_hdmi_audio_config(struct sh_hdmi *hdmi)
  */
 static void sh_hdmi_phy_config(struct sh_hdmi *hdmi)
 {
-	if (hdmi->var.pixclock < 10000) {
+	if (hdmi->mode.pixclock < 10000) {
 		/* for 1080p8bit 148MHz */
 		hdmi_write(hdmi, 0x1d, HDMI_SLIPHDMIT_PARAM_SETTINGS_1);
 		hdmi_write(hdmi, 0x00, HDMI_SLIPHDMIT_PARAM_SETTINGS_2);
@@ -484,7 +484,7 @@ static void sh_hdmi_phy_config(struct sh_hdmi *hdmi)
 		hdmi_write(hdmi, 0x0e, HDMI_SLIPHDMIT_PARAM_SETTINGS_8);
 		hdmi_write(hdmi, 0x25, HDMI_SLIPHDMIT_PARAM_SETTINGS_9);
 		hdmi_write(hdmi, 0x04, HDMI_SLIPHDMIT_PARAM_SETTINGS_10);
-	} else if (hdmi->var.pixclock < 30000) {
+	} else if (hdmi->mode.pixclock < 30000) {
 		/* 720p, 8bit, 74.25MHz. Might need to be adjusted for other formats */
 		/*
 		 * [1:0]	Speed_A
@@ -735,7 +735,6 @@ static int sh_hdmi_read_edid(struct sh_hdmi *hdmi, unsigned long *hdmi_rate,
 {
 	struct sh_mobile_lcdc_chan *ch = hdmi->entity.lcdc;
 	struct fb_info *info = ch ? ch->info : NULL;
-	struct fb_var_screeninfo var;
 	const struct fb_videomode *mode, *found = NULL;
 	const struct fb_modelist *modelist = NULL;
 	unsigned int f_width = 0, f_height = 0, f_refresh = 0;
@@ -855,10 +854,9 @@ static int sh_hdmi_read_edid(struct sh_hdmi *hdmi, unsigned long *hdmi_rate,
 		}
 
 		/* Check if supported: sufficient fb memory, supported clock-rate */
-		fb_videomode_to_var(&var, mode);
-
 		if (ch && ch->notify &&
-		    ch->notify(ch, SH_MOBILE_LCDC_EVENT_DISPLAY_MODE, &var)) {
+		    ch->notify(ch, SH_MOBILE_LCDC_EVENT_DISPLAY_MODE, mode,
+			       NULL)) {
 			scanning = true;
 			preferred_bad = true;
 			continue;
@@ -868,9 +866,6 @@ static int sh_hdmi_read_edid(struct sh_hdmi *hdmi, unsigned long *hdmi_rate,
 		found_rate_error = rate_error;
 	}
 
-	hdmi->var.width = hdmi->monspec.max_x * 10;
-	hdmi->var.height = hdmi->monspec.max_y * 10;
-
 	/*
 	 * TODO 1: if no ->info is present, postpone running the config until
 	 * after ->info first gets registered.
@@ -916,7 +911,7 @@ static int sh_hdmi_read_edid(struct sh_hdmi *hdmi, unsigned long *hdmi_rate,
 		found->xres, found->yres, found->refresh,
 		PICOS2KHZ(found->pixclock) * 1000, found_rate_error);
 
-	fb_videomode_to_var(&hdmi->var, found);
+	hdmi->mode = *found;
 	sh_hdmi_external_video_param(hdmi);
 
 	return 0;
@@ -1017,9 +1012,9 @@ static int sh_hdmi_display_on(struct sh_mobile_lcdc_entity *entity)
 		hdmi_write(hdmi, 0x80, HDMI_SYSTEM_CTRL);
 		dev_dbg(hdmi->dev, "HDMI running\n");
 		break;
-	case HDMI_HOTPLUG_DISCONNECTED:
 	default:
-		hdmi->var = ch->display_var;
+		fb_var_to_videomode(&hdmi->mode, &ch->display_var);
+		break;
 	}
 
 	return hdmi->hp_state == HDMI_HOTPLUG_DISCONNECTED
@@ -1107,7 +1102,7 @@ static void sh_hdmi_edid_work_fn(struct work_struct *work)
 
 		if (ch && ch->notify)
 			ch->notify(ch, SH_MOBILE_LCDC_EVENT_DISPLAY_CONNECT,
-				   &hdmi->var);
+				   &hdmi->mode, &hdmi->monspec);
 	} else {
 		hdmi->monspec.modedb_len = 0;
 		fb_destroy_modedb(hdmi->monspec.modedb);
@@ -1115,7 +1110,7 @@ static void sh_hdmi_edid_work_fn(struct work_struct *work)
 
 		if (ch && ch->notify)
 			ch->notify(ch, SH_MOBILE_LCDC_EVENT_DISPLAY_DISCONNECT,
-				   NULL);
+				   NULL, NULL);
 
 		ret = 0;
 	}

drivers/video/sh_mobile_lcdcfb.c

@@ -366,28 +366,23 @@ static void sh_mobile_lcdc_display_off(struct sh_mobile_lcdc_chan *ch)
 
 static bool
 sh_mobile_lcdc_must_reconfigure(struct sh_mobile_lcdc_chan *ch,
-				const struct fb_var_screeninfo *new_var)
+				const struct fb_videomode *new_mode)
 {
 	struct fb_var_screeninfo *old_var = &ch->display_var;
 	struct fb_videomode old_mode;
-	struct fb_videomode new_mode;
 
 	fb_var_to_videomode(&old_mode, old_var);
-	fb_var_to_videomode(&new_mode, new_var);
 
 	dev_dbg(ch->info->dev, "Old %ux%u, new %ux%u\n",
-		old_mode.xres, old_mode.yres, new_mode.xres, new_mode.yres);
+		old_mode.xres, old_mode.yres, new_mode->xres, new_mode->yres);
 
-	if (fb_mode_is_equal(&old_mode, &new_mode)) {
-		/* It can be a different monitor with an equal video-mode */
-		old_var->width = new_var->width;
-		old_var->height = new_var->height;
+	/* It can be a different monitor with an equal video-mode */
+	if (fb_mode_is_equal(&old_mode, new_mode))
 		return false;
-	}
 
 	dev_dbg(ch->info->dev, "Switching %u -> %u lines\n",
-		old_mode.yres, new_mode.yres);
-	*old_var = *new_var;
+		old_mode.yres, new_mode->yres);
+	fb_videomode_to_var(old_var, new_mode);
 
 	return true;
 }
@@ -397,9 +392,11 @@ static int sh_mobile_check_var(struct fb_var_screeninfo *var,
 
 static int sh_mobile_lcdc_display_notify(struct sh_mobile_lcdc_chan *ch,
 					 enum sh_mobile_lcdc_entity_event event,
-					 struct fb_var_screeninfo *var)
+					 const struct fb_videomode *mode,
+					 const struct fb_monspecs *monspec)
 {
 	struct fb_info *info = ch->info;
+	struct fb_var_screeninfo var;
 	int ret = 0;
 
 	switch (event) {
@@ -408,14 +405,17 @@ static int sh_mobile_lcdc_display_notify(struct sh_mobile_lcdc_chan *ch,
 		if (lock_fb_info(info)) {
 			console_lock();
 
-			if (!sh_mobile_lcdc_must_reconfigure(ch, var) &&
+			ch->display_var.width = monspec->max_x * 10;
+			ch->display_var.height = monspec->max_y * 10;
+
+			if (!sh_mobile_lcdc_must_reconfigure(ch, mode) &&
 			    info->state == FBINFO_STATE_RUNNING) {
 				/* First activation with the default monitor.
 				 * Just turn on, if we run a resume here, the
 				 * logo disappears.
 				 */
-				info->var.width = var->width;
-				info->var.height = var->height;
+				info->var.width = monspec->max_x * 10;
+				info->var.height = monspec->max_y * 10;
 				sh_mobile_lcdc_display_on(ch);
 			} else {
 				/* New monitor or have to wake up */
@@ -439,8 +439,10 @@ static int sh_mobile_lcdc_display_notify(struct sh_mobile_lcdc_chan *ch,
 
 	case SH_MOBILE_LCDC_EVENT_DISPLAY_MODE:
 		/* Validate a proposed new mode */
-		var->bits_per_pixel = info->var.bits_per_pixel;
-		ret = sh_mobile_check_var(var, info);
+		fb_videomode_to_var(&var, mode);
+		var.bits_per_pixel = info->var.bits_per_pixel;
+		var.grayscale = info->var.grayscale;
+		ret = sh_mobile_check_var(&var, info);
 		break;
 	}
 

drivers/video/sh_mobile_lcdcfb.h

@@ -79,7 +79,8 @@ struct sh_mobile_lcdc_chan {
 
 	int (*notify)(struct sh_mobile_lcdc_chan *ch,
 		      enum sh_mobile_lcdc_entity_event event,
-		      struct fb_var_screeninfo *var);
+		      const struct fb_videomode *mode,
+		      const struct fb_monspecs *monspec);
 };
 
 #endif