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Commit c329f606 authored by Manuel Lauss's avatar Manuel Lauss Committed by Paul Mundt
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au1200fb: use framebuffer_alloc() 



Convert to use framebuffer_alloc() instead of using fb_info embedded
into device context (which broke the driver in the past due to un-
initialized elements).

Signed-off-by: default avatarManuel Lauss <manuel.lauss@googlemail.com>
Signed-off-by: default avatarPaul Mundt <lethal@linux-sh.org>
parent fc90ec86

drivers/video/au1200fb.c

+46 −34
Original line number Diff line number Diff line
@@ -150,7 +150,7 @@ struct au1200_lcd_iodata_t { 


/* Private, per-framebuffer management information (independent of the panel itself) */

struct au1200fb_device {

	struct fb_info fb_info;			/* FB driver info record */

	struct fb_info *fb_info;		/* FB driver info record */



	int					plane;

	unsigned char* 		fb_mem;		/* FrameBuffer memory map */
@@ -158,7 +158,7 @@ struct au1200fb_device { 
	dma_addr_t    		fb_phys;

};



static struct au1200fb_device _au1200fb_devices[CONFIG_FB_AU1200_DEVS];

static struct fb_info *_au1200fb_infos[CONFIG_FB_AU1200_DEVS];

/********************************************************************/



/* LCD controller restrictions */
@@ -713,7 +713,7 @@ static int fbinfo2index (struct fb_info *fb_info) 
	int i;



	for (i = 0; i < CONFIG_FB_AU1200_DEVS; ++i) {

		if (fb_info == (struct fb_info *)(&_au1200fb_devices[i].fb_info))

		if (fb_info == _au1200fb_infos[i])

			return i;

	}

	printk("au1200fb: ERROR: fbinfo2index failed!\n");
@@ -962,7 +962,7 @@ static void au1200_setmode(struct au1200fb_device *fbdev) 
	lcd->window[plane].winctrl2 = ( 0

		| LCD_WINCTRL2_CKMODE_00

		| LCD_WINCTRL2_DBM

		| LCD_WINCTRL2_BX_N( fbdev->fb_info.fix.line_length)

		| LCD_WINCTRL2_BX_N(fbdev->fb_info->fix.line_length)

		| LCD_WINCTRL2_SCX_1

		| LCD_WINCTRL2_SCY_1

		) ;
@@ -1050,7 +1050,7 @@ static void au1200fb_update_fbinfo(struct fb_info *fbi) 
static int au1200fb_fb_check_var(struct fb_var_screeninfo *var,

	struct fb_info *fbi)

{

	struct au1200fb_device *fbdev = (struct au1200fb_device *)fbi;

	struct au1200fb_device *fbdev = fbi->par;

	u32 pixclock;

	int screen_size, plane;
@@ -1142,7 +1142,7 @@ static int au1200fb_fb_check_var(struct fb_var_screeninfo *var, 
 */

static int au1200fb_fb_set_par(struct fb_info *fbi)

{

	struct au1200fb_device *fbdev = (struct au1200fb_device *)fbi;

	struct au1200fb_device *fbdev = fbi->par;



	au1200fb_update_fbinfo(fbi);

	au1200_setmode(fbdev);
@@ -1246,7 +1246,7 @@ static int au1200fb_fb_mmap(struct fb_info *info, struct vm_area_struct *vma) 
{

	unsigned int len;

	unsigned long start=0, off;

	struct au1200fb_device *fbdev = (struct au1200fb_device *) info;

	struct au1200fb_device *fbdev = info->par;



#ifdef CONFIG_PM

	au1xxx_pm_access(LCD_pm_dev);
@@ -1561,10 +1561,9 @@ static irqreturn_t au1200fb_handle_irq(int irq, void* dev_id) 


static int au1200fb_init_fbinfo(struct au1200fb_device *fbdev)

{

	struct fb_info *fbi = &fbdev->fb_info;

	struct fb_info *fbi = fbdev->fb_info;

	int bpp;



	memset(fbi, 0, sizeof(struct fb_info));

	fbi->fbops = &au1200fb_fb_ops;



	bpp = winbpp(win->w[fbdev->plane].mode_winctrl1);
@@ -1626,11 +1625,13 @@ static int au1200fb_init_fbinfo(struct au1200fb_device *fbdev) 
static int au1200fb_drv_probe(struct platform_device *dev)

{

	struct au1200fb_device *fbdev;

	struct fb_info *fbi = NULL;

	unsigned long page;

	int bpp, plane, ret;



	if (!dev)

		return -EINVAL;

	/* shut gcc up */

	ret = 0;

	fbdev = NULL;



	for (plane = 0; plane < CONFIG_FB_AU1200_DEVS; ++plane) {

		bpp = winbpp(win->w[plane].mode_winctrl1);
@@ -1639,8 +1640,15 @@ static int au1200fb_drv_probe(struct platform_device *dev) 
		if (win->w[plane].yres == 0)

			win->w[plane].yres = panel->Yres;



		fbdev = &_au1200fb_devices[plane];

		memset(fbdev, 0, sizeof(struct au1200fb_device));

		fbi = framebuffer_alloc(sizeof(struct au1200fb_device),

					&dev->dev);

		if (!fbi)

			goto failed;



		_au1200fb_infos[plane] = fbi;

		fbdev = fbi->par;

		fbdev->fb_info = fbi;



		fbdev->plane = plane;



		/* Allocate the framebuffer to the maximum screen size */
@@ -1673,21 +1681,20 @@ static int au1200fb_drv_probe(struct platform_device *dev) 
			goto failed;



		/* Register new framebuffer */

		if ((ret = register_framebuffer(&fbdev->fb_info)) < 0) {

		ret = register_framebuffer(fbi);

		if (ret < 0) {

			print_err("cannot register new framebuffer");

			goto failed;

		}



		au1200fb_fb_set_par(&fbdev->fb_info);

		au1200fb_fb_set_par(fbi);



#if !defined(CONFIG_FRAMEBUFFER_CONSOLE) && defined(CONFIG_LOGO)

		if (plane == 0)

			if (fb_prepare_logo(&fbdev->fb_info, FB_ROTATE_UR)) {

			if (fb_prepare_logo(fbi, FB_ROTATE_UR)) {

				/* Start display and show logo on boot */

				fb_set_cmap(&fbdev->fb_info.cmap,

						&fbdev->fb_info);



				fb_show_logo(&fbdev->fb_info, FB_ROTATE_UR);

				fb_set_cmap(&fbi->cmap, fbi);

				fb_show_logo(fbi, FB_ROTATE_UR);

			}

#endif

	}
@@ -1705,12 +1712,13 @@ static int au1200fb_drv_probe(struct platform_device *dev) 
failed:

	/* NOTE: This only does the current plane/window that failed; others are still active */

	if (fbdev->fb_mem)

		dma_free_noncoherent(dev, PAGE_ALIGN(fbdev->fb_len),

		dma_free_noncoherent(&dev->dev, PAGE_ALIGN(fbdev->fb_len),

				fbdev->fb_mem, fbdev->fb_phys);

	if (fbdev->fb_info.cmap.len != 0)

		fb_dealloc_cmap(&fbdev->fb_info.cmap);

	if (fbdev->fb_info.pseudo_palette)

		kfree(fbdev->fb_info.pseudo_palette);

	if (fbi) {

		if (fbi->cmap.len != 0)

			fb_dealloc_cmap(&fbi->cmap);

		kfree(fbi->pseudo_palette);

	}

	if (plane == 0)

		free_irq(AU1200_LCD_INT, (void*)dev);

	return ret;
@@ -1719,6 +1727,7 @@ static int au1200fb_drv_probe(struct platform_device *dev) 
static int au1200fb_drv_remove(struct platform_device *dev)

{

	struct au1200fb_device *fbdev;

	struct fb_info *fbi;

	int plane;



	if (!dev)
@@ -1727,20 +1736,22 @@ static int au1200fb_drv_remove(struct platform_device *dev) 
	/* Turn off the panel */

	au1200_setpanel(NULL);



	for (plane = 0; plane < CONFIG_FB_AU1200_DEVS; ++plane)

	{

		fbdev = &_au1200fb_devices[plane];

	for (plane = 0; plane < CONFIG_FB_AU1200_DEVS; ++plane)	{

		fbi = _au1200fb_infos[plane];

		fbdev = fbi->par;



		/* Clean up all probe data */

		unregister_framebuffer(&fbdev->fb_info);

		unregister_framebuffer(fbi);

		if (fbdev->fb_mem)

			dma_free_noncoherent(&dev->dev,

					PAGE_ALIGN(fbdev->fb_len),

					fbdev->fb_mem, fbdev->fb_phys);

		if (fbdev->fb_info.cmap.len != 0)

			fb_dealloc_cmap(&fbdev->fb_info.cmap);

		if (fbdev->fb_info.pseudo_palette)

			kfree(fbdev->fb_info.pseudo_palette);

		if (fbi->cmap.len != 0)

			fb_dealloc_cmap(&fbi->cmap);

		kfree(fbi->pseudo_palette);



		framebuffer_release(fbi);

		_au1200fb_infos[plane] = NULL;

	}



	free_irq(AU1200_LCD_INT, (void *)dev);
@@ -1749,7 +1760,8 @@ static int au1200fb_drv_remove(struct platform_device *dev) 
}



#ifdef CONFIG_PM

static int au1200fb_drv_suspend(struct platform_device *dev, u32 state)

static int au1200fb_drv_suspend(struct platform_device *dev,

				pm_message_t state)

{

	/* TODO */

	return 0;