[PATCH] DRIVER MODEL: Get rid of the obsolete tri-level suspend/resume callbacks
In PM v1, all devices were called at SUSPEND_DISABLE level. Then
all devices were called at SUSPEND_SAVE_STATE level, and finally
SUSPEND_POWER_DOWN level. However, with PM v2, to maintain
compatibility for platform devices, I arranged for the PM v2
suspend/resume callbacks to call the old PM v1 suspend/resume
callbacks three times with each level in order so that existing
drivers continued to work.
Since this is obsolete infrastructure which is no longer necessary,
we can remove it. Here's an (untested) patch to do exactly that.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/drivers/video/s3c2410fb.c b/drivers/video/s3c2410fb.c
index 5ab79af..3862d3c 100644
--- a/drivers/video/s3c2410fb.c
+++ b/drivers/video/s3c2410fb.c
@@ -847,37 +847,32 @@
/* suspend and resume support for the lcd controller */
-static int s3c2410fb_suspend(struct device *dev, pm_message_t state, u32 level)
+static int s3c2410fb_suspend(struct device *dev, pm_message_t state)
{
struct fb_info *fbinfo = dev_get_drvdata(dev);
struct s3c2410fb_info *info = fbinfo->par;
- if (level == SUSPEND_DISABLE || level == SUSPEND_POWER_DOWN) {
- s3c2410fb_stop_lcd();
+ s3c2410fb_stop_lcd();
- /* sleep before disabling the clock, we need to ensure
- * the LCD DMA engine is not going to get back on the bus
- * before the clock goes off again (bjd) */
+ /* sleep before disabling the clock, we need to ensure
+ * the LCD DMA engine is not going to get back on the bus
+ * before the clock goes off again (bjd) */
- msleep(1);
- clk_disable(info->clk);
- }
+ msleep(1);
+ clk_disable(info->clk);
return 0;
}
-static int s3c2410fb_resume(struct device *dev, u32 level)
+static int s3c2410fb_resume(struct device *dev)
{
struct fb_info *fbinfo = dev_get_drvdata(dev);
struct s3c2410fb_info *info = fbinfo->par;
- if (level == RESUME_ENABLE) {
- clk_enable(info->clk);
- msleep(1);
+ clk_enable(info->clk);
+ msleep(1);
- s3c2410fb_init_registers(info);
-
- }
+ s3c2410fb_init_registers(info);
return 0;
}