The patch titled
au1100fb: add power management support
has been added to the -mm tree. Its filename is
au1100fb-add-power-management-support.patch
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: au1100fb: add power management support
From: Rodolfo Giometti <giometti@xxxxxxxx>
Add power management support
Signed-off-by: Rodolfo Giometti <giometti@xxxxxxxx>
Signed-off-by: Antonino Daplas <adaplas@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxx>
---
drivers/video/au1100fb.c | 40 +++++++++++++++++++++++++++++++++++--
1 file changed, 38 insertions(+), 2 deletions(-)
diff -puN drivers/video/au1100fb.c~au1100fb-add-power-management-support drivers/video/au1100fb.c
--- devel/drivers/video/au1100fb.c~au1100fb-add-power-management-support 2006-05-29 15:57:27.000000000 -0700
+++ devel-akpm/drivers/video/au1100fb.c 2006-05-29 15:57:27.000000000 -0700
@@ -7,6 +7,8 @@
* Karl Lessard <klessard@xxxxxxxxxxxxxxxxxx>
* <c.pellegrin@xxxxxxxxxxx>
*
+ * PM support added by Rodolfo Giometti <giometti@xxxxxxxx>
+ *
* Copyright 2002 MontaVista Software
* Author: MontaVista Software, Inc.
* ppopov@xxxxxxxxxx or source@xxxxxxxxxx
@@ -602,17 +604,49 @@ int au1100fb_drv_remove(struct device *d
return 0;
}
+#ifdef CONFIG_PM
+static u32 sys_clksrc;
+static struct au1100fb_regs fbregs;
+
int au1100fb_drv_suspend(struct device *dev, pm_message_t state)
{
- /* TODO */
+ struct au1100fb_device *fbdev = dev_get_drvdata(dev);
+
+ if (!fbdev)
+ return 0;
+
+ /* Save the clock source state */
+ sys_clksrc = au_readl(SYS_CLKSRC);
+
+ /* Blank the LCD */
+ au1100fb_fb_blank(VESA_POWERDOWN, &fbdev->info);
+
+ /* Stop LCD clocking */
+ au_writel(sys_clksrc & ~SYS_CS_ML_MASK, SYS_CLKSRC);
+
+ memcpy(&fbregs, fbdev->regs, sizeof(struct au1100fb_regs));
+
return 0;
}
int au1100fb_drv_resume(struct device *dev)
{
- /* TODO */
+ struct au1100fb_device *fbdev = dev_get_drvdata(dev);
+
+ if (!fbdev)
+ return 0;
+
+ memcpy(fbdev->regs, &fbregs, sizeof(struct au1100fb_regs));
+
+ /* Restart LCD clocking */
+ au_writel(sys_clksrc, SYS_CLKSRC);
+
+ /* Unblank the LCD */
+ au1100fb_fb_blank(VESA_NO_BLANKING, &fbdev->info);
+
return 0;
}
+#endif
static struct device_driver au1100fb_driver = {
.name = "au1100-lcd",
@@ -620,8 +654,10 @@ static struct device_driver au1100fb_dri
.probe = au1100fb_drv_probe,
.remove = au1100fb_drv_remove,
+#ifdef CONFIG_PM
.suspend = au1100fb_drv_suspend,
.resume = au1100fb_drv_resume,
+#endif
};
/*-------------------------------------------------------------------------*/
_
Patches currently in -mm which might be from giometti@xxxxxxxx are
au1100fb-fix-compilation.patch
au1100fb-add-power-management-support.patch
-
To unsubscribe from this list: send the line "unsubscribe mm-commits" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
