2 #include <linux/dma-mapping.h>
5 #include <linux/platform_data/video-clcd-versatile.h>
11 #include "amba-clcd-versatile.h"
29 	.width		= -1,
30 	.height		= -1,
53 	.width		= -1,
54 	.height		= -1,
61 /* Sanyo TM38QV67A02A - 3.8 inch QVGA (320x240) Color TFT */
78 	.width		= -1,
79 	.height		= -1,
102 	.width		= -1,
103 	.height		= -1,
110 /* Epson L2F50113T00 - 2.2 inch 176x220 Color TFT */
127 	.width		= -1,
128 	.height		= -1,
148 		if (strcmp(panels[i]->mode.name, name) == 0)  in versatile_clcd_get_panel()
154 	pr_err("CLCD: couldn't get parameters for panel %s\n", name);  in versatile_clcd_get_panel()
163 	fb->fb.screen_base = dma_alloc_wc(&fb->dev->dev, framesize, &dma,  in versatile_clcd_setup_dma()
165 	if (!fb->fb.screen_base) {  in versatile_clcd_setup_dma()
167 		return -ENOMEM;  in versatile_clcd_setup_dma()
170 	fb->fb.fix.smem_start	= dma;  in versatile_clcd_setup_dma()
171 	fb->fb.fix.smem_len	= framesize;  in versatile_clcd_setup_dma()
178 	return dma_mmap_wc(&fb->dev->dev, vma, fb->fb.screen_base,  in versatile_clcd_mmap_dma()
179 			   fb->fb.fix.smem_start, fb->fb.fix.smem_len);  in versatile_clcd_mmap_dma()
184 	dma_free_wc(&fb->dev->dev, fb->fb.fix.smem_len, fb->fb.screen_base,  in versatile_clcd_remove_dma()
185 		    fb->fb.fix.smem_start);  in versatile_clcd_remove_dma()
208 		.compatible = "arm,core-module-integrator",
212 		.compatible = "arm,versatile-sysreg",
216 		.compatible = "arm,realview-eb-syscon",
220 		.compatible = "arm,realview-pb1176-syscon",
224 		.compatible = "arm,realview-pb11mp-syscon",
228 		.compatible = "arm,realview-pba8-syscon",
232 		.compatible = "arm,realview-pbx-syscon",
278 	struct fb_var_screeninfo *var = &fb->fb.var;  in integrator_clcd_enable()
281 	dev_info(&fb->dev->dev, "enable Integrator CLCD connectors\n");  in integrator_clcd_enable()
286 	if (var->bits_per_pixel <= 8 ||  in integrator_clcd_enable()
287 	    (var->bits_per_pixel == 16 && var->green.length == 5))  in integrator_clcd_enable()
290 	else if (fb->fb.var.bits_per_pixel <= 16)  in integrator_clcd_enable()
303  * This configuration register in the Versatile and RealView
321 /* The Versatile can detect the connected panel type */
331 /* IB2 control register for the Versatile daughterboard */
339 	dev_info(&fb->dev->dev, "disable Versatile CLCD connectors\n");  in versatile_clcd_disable()
347 		dev_info(&fb->dev->dev, "disable IB2 display\n");  in versatile_clcd_disable()
357 	struct fb_var_screeninfo *var = &fb->fb.var;  in versatile_clcd_enable()
360 	dev_info(&fb->dev->dev, "enable Versatile CLCD connectors\n");  in versatile_clcd_enable()
361 	switch (var->green.length) {  in versatile_clcd_enable()
366 		if (var->red.offset == 0)  in versatile_clcd_enable()
390 		dev_info(&fb->dev->dev, "enable IB2 display\n");  in versatile_clcd_enable()
403 	if (fb->fb.var.green.length == 6)  in versatile_clcd_decode()
404 		regs->cntl &= ~CNTL_BGR;  in versatile_clcd_decode()
409 	dev_info(&fb->dev->dev, "disable RealView CLCD connectors\n");  in realview_clcd_disable()
418 	dev_info(&fb->dev->dev, "enable RealView CLCD connectors\n");  in realview_clcd_enable()
455 static void versatile_panel_probe(struct device *dev, struct device_node *panel)  in versatile_panel_probe()  argument
463 	 * The Versatile CLCD has a panel auto-detection mechanism.  in versatile_panel_probe()
464 	 * We use this and look for the compatible panel in the  in versatile_panel_probe()
474 	/* First find corresponding panel information */  in versatile_panel_probe()
478 		if (val == vpanel->id) {  in versatile_panel_probe()
479 			dev_err(dev, "autodetected panel \"%s\"\n",  in versatile_panel_probe()
480 				vpanel->compatible);  in versatile_panel_probe()
485 		dev_err(dev, "could not auto-detect panel\n");  in versatile_panel_probe()
489 	if (!of_device_is_compatible(panel, vpanel->compatible))  in versatile_panel_probe()
490 		dev_err(dev, "panel in DT is not compatible with the "  in versatile_panel_probe()
491 			"auto-detected panel, continuing anyway\n");  in versatile_panel_probe()
498 	if (!vpanel->ib2)  in versatile_panel_probe()
502 		"arm,versatile-ib2-syscon");  in versatile_panel_probe()
510 int versatile_clcd_init_panel(struct clcd_fb *fb, struct device_node *panel)  in versatile_clcd_init_panel()  argument
516 	struct device *dev = &fb->dev->dev;  in versatile_clcd_init_panel()
524 	versatile_clcd_type = (enum versatile_clcd)clcd_id->data;  in versatile_clcd_init_panel()
528 		dev_err(dev, "no Versatile syscon regmap\n");  in versatile_clcd_init_panel()
535 		fb->board->enable = integrator_clcd_enable;  in versatile_clcd_init_panel()
537 		fb->board->caps = CLCD_CAP_5551 | CLCD_CAP_RGB565 |  in versatile_clcd_init_panel()
543 		fb->board->enable = versatile_clcd_enable;  in versatile_clcd_init_panel()
544 		fb->board->disable = versatile_clcd_disable;  in versatile_clcd_init_panel()
545 		fb->board->decode = versatile_clcd_decode;  in versatile_clcd_init_panel()
546 		versatile_panel_probe(dev, panel);  in versatile_clcd_init_panel()
547 		dev_info(dev, "set up callbacks for Versatile\n");  in versatile_clcd_init_panel()
555 		fb->board->enable = realview_clcd_enable;  in versatile_clcd_init_panel()
556 		fb->board->disable = realview_clcd_disable;  in versatile_clcd_init_panel()
560 		dev_info(dev, "unknown Versatile system controller\n");  in versatile_clcd_init_panel()