[PATCH v9 7/8] Loongson: YeeLoong: add suspend support
Wu Zhangjin <[email protected]>
| Newsgroups | gmane.linux.kernel,gmane.linux.ports.mips.general,gmane.linux.laptop |
|---|---|
| Message-ID | <6af33d6c42ba4de9eea27316c64f81b96e01c948.1260281599.git.wuzhangjin@gmail.com> |
From: Wu Zhangjin <[email protected]> This patch add support to suspend the yeeloong platform specific devices(LCD, CRT, USB...). Acked-by: Rafael J. Wysocki <[email protected]> Acked-by: Pavel Machek <[email protected]> Signed-off-by: Wu Zhangjin <[email protected]> --- drivers/platform/mips/yeeloong_laptop.c | 42 ++++++++++++++++++++++++++++-- 1 files changed, 39 insertions(+), 3 deletions(-) diff --git a/drivers/platform/mips/yeeloong_laptop.c b/drivers/platform/mips/yeeloong_laptop.c index f8907da..baf3e81 100644 --- a/drivers/platform/mips/yeeloong_laptop.c +++ b/drivers/platform/mips/yeeloong_laptop.c @@ -512,6 +512,39 @@ 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) +{ + yeeloong_lcd_vo_set(BIT_DISPLAY_LCD_ON); + yeeloong_crt_vo_set(BIT_CRT_DETECT_PLUG); + usb_ports_set(BIT_USB_FLAG_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", @@ -523,9 +556,12 @@ 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, }; -- 1.6.2.1