aboutsummaryrefslogtreecommitdiff
path: root/drivers/video/au1200fb.c
diff options
context:
space:
mode:
authorManuel Lauss <manuel.lauss@googlemail.com>2011-06-10 15:23:02 +0000
committerPaul Mundt <lethal@linux-sh.org>2011-06-15 15:48:59 +0900
commit98707fcc044c2e6120448041bf738d1b134cfaa4 (patch)
tree246f47aa86638bbee3b148e955706721d56e75d5 /drivers/video/au1200fb.c
parentc329f606a23e13fe952768cb9c32ea929ed91480 (diff)
downloadlinux-98707fcc044c2e6120448041bf738d1b134cfaa4.tar.gz
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>
Diffstat (limited to 'drivers/video/au1200fb.c')
-rw-r--r--drivers/video/au1200fb.c154
1 files changed, 39 insertions, 115 deletions
diff --git a/drivers/video/au1200fb.c b/drivers/video/au1200fb.c
index 442d005e452..480ecb1b9d0 100644
--- a/drivers/video/au1200fb.c
+++ b/drivers/video/au1200fb.c
@@ -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 @@ failed:
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,
+ .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);
}