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au1200fb: fixup PM 

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

Signed-off-by: Manuel Lauss <manuel.lauss@googlemail.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
This commit is contained in:
Manuel Lauss 2011-06-10 15:23:02 +00:00 committed by Paul Mundt
parent c329f606a2
commit 98707fcc04
1 changed files with 39 additions and 115 deletions
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154
drivers/video/au1200fb.c
View File

@ -46,10 +46,6 @@
#include <asm/mach-au1x00/au1000.h> #include <asm/mach-au1x00/au1000.h>
#include "au1200fb.h" #include "au1200fb.h"
#ifdef CONFIG_PM
#include <asm/mach-au1x00/au1xxx_pm.h>
#endif
#ifndef CONFIG_FB_AU1200_DEVS #ifndef CONFIG_FB_AU1200_DEVS
#define CONFIG_FB_AU1200_DEVS 4 #define CONFIG_FB_AU1200_DEVS 4
#endif #endif
@ -205,12 +201,6 @@ struct window_settings {
extern int board_au1200fb_panel_init (void); extern int board_au1200fb_panel_init (void);
extern int board_au1200fb_panel_shutdown (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 * 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) static int winbpp (unsigned int winctrl1)
{ {
int bits = 0; 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; unsigned long start=0, off;
struct au1200fb_device *fbdev = info->par; struct au1200fb_device *fbdev = info->par;
#ifdef CONFIG_PM
au1xxx_pm_access(LCD_pm_dev);
#endif
if (vma->vm_pgoff > (~0UL >> PAGE_SHIFT)) { if (vma->vm_pgoff > (~0UL >> PAGE_SHIFT)) {
return -EINVAL; return -EINVAL;
} }
@ -1461,10 +1428,6 @@ static int au1200fb_ioctl(struct fb_info *info, unsigned int cmd,
int plane; int plane;
int val; int val;
#ifdef CONFIG_PM
au1xxx_pm_access(LCD_pm_dev);
#endif
plane = fbinfo2index(info); plane = fbinfo2index(info);
print_dbg("au1200fb: ioctl %d on plane %d\n", cmd, plane); 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 */ /* 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 au1200fb_device *fbdev;
struct fb_info *fbi = NULL; struct fb_info *fbi = NULL;
@ -1633,6 +1596,9 @@ static int au1200fb_drv_probe(struct platform_device *dev)
ret = 0; ret = 0;
fbdev = NULL; fbdev = NULL;
/* Kickstart the panel */
au1200_setpanel(panel);
for (plane = 0; plane < CONFIG_FB_AU1200_DEVS; ++plane) { for (plane = 0; plane < CONFIG_FB_AU1200_DEVS; ++plane) {
bpp = winbpp(win->w[plane].mode_winctrl1); bpp = winbpp(win->w[plane].mode_winctrl1);
if (win->w[plane].xres == 0) if (win->w[plane].xres == 0)
@ -1724,15 +1690,12 @@ failed:
return ret; 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 au1200fb_device *fbdev;
struct fb_info *fbi; struct fb_info *fbi;
int plane; int plane;
if (!dev)
return -ENODEV;
/* Turn off the panel */ /* Turn off the panel */
au1200_setpanel(NULL); au1200_setpanel(NULL);
@ -1760,31 +1723,53 @@ static int au1200fb_drv_remove(struct platform_device *dev)
} }
#ifdef CONFIG_PM #ifdef CONFIG_PM
static int au1200fb_drv_suspend(struct platform_device *dev, static int au1200fb_drv_suspend(struct device *dev)
pm_message_t state)
{ {
/* TODO */ au1200_setpanel(NULL);
lcd->outmask = 0;
au_sync();
return 0; 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; 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 */ #endif /* CONFIG_PM */
static struct platform_driver au1200fb_driver = { static struct platform_driver au1200fb_driver = {
.driver = { .driver = {
.name = "au1200-lcd", .name = "au1200-lcd",
.owner = THIS_MODULE, .owner = THIS_MODULE,
.pm = AU1200FB_PMOPS,
}, },
.probe = au1200fb_drv_probe, .probe = au1200fb_drv_probe,
.remove = au1200fb_drv_remove, .remove = __devexit_p(au1200fb_drv_remove),
#ifdef CONFIG_PM
.suspend = au1200fb_drv_suspend,
.resume = au1200fb_drv_resume,
#endif
}; };
/*-------------------------------------------------------------------------*/ /*-------------------------------------------------------------------------*/
@ -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) static int __init au1200fb_init(void)
{ {
print_info("" DRIVER_DESC ""); 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 ": Panel %d %s\n", panel_index, panel->name);
printk(DRIVER_NAME ": Win %d %s\n", window_index, win->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); return platform_driver_register(&au1200fb_driver);
} }