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Commit 98707fcc authored by Manuel Lauss's avatar Manuel Lauss Committed by Paul Mundt
Browse files

au1200fb: fixup PM 



Remove last traces of the unused custom Alchemy PM code, implement
suspend/resume callbacks.

Signed-off-by: default avatarManuel Lauss <manuel.lauss@googlemail.com>
Signed-off-by: default avatarPaul Mundt <lethal@linux-sh.org>
parent c329f606

drivers/video/au1200fb.c

+39 −115
Original line number Diff line number Diff line
@@ -46,10 +46,6 @@ 
#include <asm/mach-au1x00/au1000.h>

#include "au1200fb.h"



#ifdef CONFIG_PM

#include <asm/mach-au1x00/au1xxx_pm.h>

#endif



#ifndef CONFIG_FB_AU1200_DEVS

#define CONFIG_FB_AU1200_DEVS 4

#endif
@@ -205,12 +201,6 @@ struct window_settings { 
extern int board_au1200fb_panel_init (void);

extern int board_au1200fb_panel_shutdown (void);



#ifdef CONFIG_PM

int au1200fb_pm_callback(au1xxx_power_dev_t *dev,

		au1xxx_request_t request, void *data);

au1xxx_power_dev_t *LCD_pm_dev;

#endif



/*

 * Default window configurations

 */
@@ -652,25 +642,6 @@ static struct panel_settings known_lcd_panels[] = 


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



#ifdef CONFIG_PM

static int set_brightness(unsigned int brightness)

{

	unsigned int hi1, divider;



	/* limit brightness pwm duty to >= 30/1600 */

	if (brightness < 30) {

		brightness = 30;

	}

	divider = (lcd->pwmdiv & 0x3FFFF) + 1;

	hi1 = (lcd->pwmhi >> 16) + 1;

	hi1 = (((brightness & 0xFF) + 1) * divider >> 8);

	lcd->pwmhi &= 0xFFFF;

	lcd->pwmhi |= (hi1 << 16);



	return brightness;

}

#endif /* CONFIG_PM */



static int winbpp (unsigned int winctrl1)

{

	int bits = 0;
@@ -1248,10 +1219,6 @@ static int au1200fb_fb_mmap(struct fb_info *info, struct vm_area_struct *vma) 
	unsigned long start=0, off;

	struct au1200fb_device *fbdev = info->par;



#ifdef CONFIG_PM

	au1xxx_pm_access(LCD_pm_dev);

#endif



	if (vma->vm_pgoff > (~0UL >> PAGE_SHIFT)) {

		return -EINVAL;

	}
@@ -1461,10 +1428,6 @@ static int au1200fb_ioctl(struct fb_info *info, unsigned int cmd, 
	int plane;

	int val;



#ifdef CONFIG_PM

	au1xxx_pm_access(LCD_pm_dev);

#endif



	plane = fbinfo2index(info);

	print_dbg("au1200fb: ioctl %d on plane %d\n", cmd, plane);
@@ -1622,7 +1585,7 @@ static int au1200fb_init_fbinfo(struct au1200fb_device *fbdev) 


/* AU1200 LCD controller device driver */



static int au1200fb_drv_probe(struct platform_device *dev)

static int __devinit au1200fb_drv_probe(struct platform_device *dev)

{

	struct au1200fb_device *fbdev;

	struct fb_info *fbi = NULL;
@@ -1633,6 +1596,9 @@ static int au1200fb_drv_probe(struct platform_device *dev) 
	ret = 0;

	fbdev = NULL;



	/* Kickstart the panel */

	au1200_setpanel(panel);



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

		bpp = winbpp(win->w[plane].mode_winctrl1);

		if (win->w[plane].xres == 0)
@@ -1724,15 +1690,12 @@ static int au1200fb_drv_probe(struct platform_device *dev) 
	return ret;

}



static int au1200fb_drv_remove(struct platform_device *dev)

static int __devexit au1200fb_drv_remove(struct platform_device *dev)

{

	struct au1200fb_device *fbdev;

	struct fb_info *fbi;

	int plane;



	if (!dev)

		return -ENODEV;



	/* Turn off the panel */

	au1200_setpanel(NULL);
@@ -1760,31 +1723,53 @@ static int au1200fb_drv_remove(struct platform_device *dev) 
}



#ifdef CONFIG_PM

static int au1200fb_drv_suspend(struct platform_device *dev,

				pm_message_t state)

static int au1200fb_drv_suspend(struct device *dev)

{

	/* TODO */

	au1200_setpanel(NULL);



	lcd->outmask = 0;

	au_sync();



	return 0;

}



static int au1200fb_drv_resume(struct platform_device *dev)

static int au1200fb_drv_resume(struct device *dev)

{

	/* TODO */

	struct fb_info *fbi;

	int i;



	/* Kickstart the panel */

	au1200_setpanel(panel);



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

		fbi = _au1200fb_infos[i];

		au1200fb_fb_set_par(fbi);

	}



	return 0;

}



static const struct dev_pm_ops au1200fb_pmops = {

	.suspend	= au1200fb_drv_suspend,

	.resume		= au1200fb_drv_resume,

	.freeze		= au1200fb_drv_suspend,

	.thaw		= au1200fb_drv_resume,

};



#define AU1200FB_PMOPS	(&au1200fb_pmops)



#else

#define AU1200FB_PMOPS	NULL

#endif /* CONFIG_PM */



static struct platform_driver au1200fb_driver = {

	.driver = {

		.name	= "au1200-lcd",

		.owner	= THIS_MODULE,

		.pm	= AU1200FB_PMOPS,

	},

	.probe		= au1200fb_drv_probe,

	.remove		= au1200fb_drv_remove,

#ifdef CONFIG_PM

	.suspend	= au1200fb_drv_suspend,

	.resume		= au1200fb_drv_resume,

#endif

	.remove		= __devexit_p(au1200fb_drv_remove),

};



/*-------------------------------------------------------------------------*/
@@ -1847,56 +1832,6 @@ static void au1200fb_setup(void) 
	}

}



#ifdef CONFIG_PM

static int au1200fb_pm_callback(au1xxx_power_dev_t *dev,

		au1xxx_request_t request, void *data) {

	int retval = -1;

	unsigned int d = 0;

	unsigned int brightness = 0;



	if (request == AU1XXX_PM_SLEEP) {

		board_au1200fb_panel_shutdown();

	}

	else if (request == AU1XXX_PM_WAKEUP) {

		if(dev->prev_state == SLEEP_STATE)

		{

			int plane;

			au1200_setpanel(panel);

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

				struct au1200fb_device *fbdev;

				fbdev = &_au1200fb_devices[plane];

				au1200fb_fb_set_par(&fbdev->fb_info);

			}

		}



		d = *((unsigned int*)data);

		if(d <=10) brightness = 26;

		else if(d<=20) brightness = 51;

		else if(d<=30) brightness = 77;

		else if(d<=40) brightness = 102;

		else if(d<=50) brightness = 128;

		else if(d<=60) brightness = 153;

		else if(d<=70) brightness = 179;

		else if(d<=80) brightness = 204;

		else if(d<=90) brightness = 230;

		else brightness = 255;

		set_brightness(brightness);

	} else if (request == AU1XXX_PM_GETSTATUS) {

		return dev->cur_state;

	} else if (request == AU1XXX_PM_ACCESS) {

		if (dev->cur_state != SLEEP_STATE)

			return retval;

		else {

			au1200_setpanel(panel);

		}

	} else if (request == AU1XXX_PM_IDLE) {

	} else if (request == AU1XXX_PM_CLEANUP) {

	}



	return retval;

}

#endif



static int __init au1200fb_init(void)

{

	print_info("" DRIVER_DESC "");
@@ -1911,17 +1846,6 @@ static int __init au1200fb_init(void) 
	printk(DRIVER_NAME ": Panel %d %s\n", panel_index, panel->name);

	printk(DRIVER_NAME ": Win %d %s\n", window_index, win->name);



	/* Kickstart the panel, the framebuffers/windows come soon enough */

	au1200_setpanel(panel);



	#ifdef CONFIG_PM

	LCD_pm_dev = new_au1xxx_power_device("LCD", &au1200fb_pm_callback, NULL);

	if ( LCD_pm_dev == NULL)

		printk(KERN_INFO "Unable to create a power management device entry for the au1200fb.\n");

	else

		printk(KERN_INFO "Power management device entry for the au1200fb loaded.\n");

	#endif



	return platform_driver_register(&au1200fb_driver);

}