From: Hebbar Gururaja Date: Wed, 3 Jul 2013 22:08:02 +0000 (-0700) Subject: rtc: omap: restore back (hard-code) wakeup support X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=1d2e2b65d098c0a321e16b0997eb760439d99500;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git rtc: omap: restore back (hard-code) wakeup support rtc-omap driver modules is used both by OMAP1/2, Davinci SoC platforms. However, rtc wake support on OMAP1 is broken. Hence the device_init_wakeup() was removed from rtc-omap driver and moved to platform board files that supported it (DA850/OMAP-L138). [1] However, recently [2] it was suggested that driver should always do a device_init_wakeup(dev, true). Platforms that don't want/need wakeup support can disable it from userspace via: echo disabled > /sys/devices/.../power/wakeup Also, with the new DT boot-up, board file doesn't exist and hence there is no way to have device wakeup support rtc. The fix for above issues, is to hard code device_init_wakeup() inside driver and let platforms that don't need this, handle it through the sysfs power entry. [1] https://patchwork.kernel.org/patch/136731/ [2] http://www.mail-archive.com/davinci-linux-open-source@linux. davincidsp.com/msg26077.html Signed-off-by: Hebbar Gururaja Cc: Alessandro Zummo Acked-by: Kevin Hilman Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- diff --git a/drivers/rtc/rtc-omap.c b/drivers/rtc/rtc-omap.c index 6f6ac033d5d9..c6ffbaec32a4 100644 --- a/drivers/rtc/rtc-omap.c +++ b/drivers/rtc/rtc-omap.c @@ -421,6 +421,8 @@ static int __init omap_rtc_probe(struct platform_device *pdev) * is write-only, and always reads as zero...) */ + device_init_wakeup(&pdev->dev, true); + if (new_ctrl & (u8) OMAP_RTC_CTRL_SPLIT) pr_info("%s: split power mode\n", pdev->name);