From: Wu Zhangjin <wuzhangjin@xxxxxxxxx>
This patch add support to suspend the yeeloong platform specific
devices(LCD, CRT, USB...).
Acked-by: Rafael J. Wysocki <rjw@xxxxxxx>
Acked-by: Pavel Machek <pavel@xxxxxx>
Signed-off-by: Wu Zhangjin <wuzhangjin@xxxxxxxxx>
---
drivers/platform/mips/yeeloong_laptop.c | 41 ++++++++++++++++++++++++++++--
1 files changed, 38 insertions(+), 3 deletions(-)
diff --git a/drivers/platform/mips/yeeloong_laptop.c b/drivers/platform/mips/yeeloong_laptop.c
index 4f11bc1..8abe88d 100644
--- a/drivers/platform/mips/yeeloong_laptop.c
+++ b/drivers/platform/mips/yeeloong_laptop.c
@@ -452,6 +452,38 @@ static void yeeloong_vo_exit(void)
}
}
+#ifdef CONFIG_PM
+static void usb_ports_set(int status)
+{
+ status = !!status;
+
+ ec_write(REG_USB0_FLAG, status);
+ ec_write(REG_USB1_FLAG, status);
+ ec_write(REG_USB2_FLAG, status);
+}
+
+static int yeeloong_suspend(struct device *dev)
+{
+ yeeloong_lcd_vo_set(BIT_DISPLAY_LCD_OFF);
+ yeeloong_crt_vo_set(BIT_CRT_DETECT_UNPLUG);
+ usb_ports_set(BIT_USB_FLAG_OFF);
+
+ return 0;
+}
+
+static int yeeloong_resume(struct device *dev)
+{
+ usb_ports_set(BIT_USB_FLAG_ON);
+ yeeloong_crt_vo_set(BIT_CRT_DETECT_PLUG);
+ yeeloong_lcd_vo_set(BIT_DISPLAY_LCD_ON);
+
+ return 0;
+}
+
+static const SIMPLE_DEV_PM_OPS(yeeloong_pm_ops, yeeloong_suspend,
+ yeeloong_resume);
+#endif
+
static struct platform_device_id platform_device_ids[] = {
{
.name = "yeeloong_laptop",
@@ -463,9 +495,12 @@ MODULE_DEVICE_TABLE(platform, platform_device_ids);
static struct platform_driver platform_driver = {
.driver = {
- .name = "yeeloong_laptop",
- .owner = THIS_MODULE,
- },
+ .name = "yeeloong_laptop",
+ .owner = THIS_MODULE,
+#ifdef CONFIG_PM
+ .pm = &yeeloong_pm_ops,
+#endif
+ },
.id_table = platform_device_ids,
};
--
1.6.6
