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authorHebbar Gururaja <gururaja.hebbar@ti.com>2013-07-04 02:08:02 +0400
committerLinus Torvalds <torvalds@linux-foundation.org>2013-07-04 03:08:00 +0400
commit1d2e2b65d098c0a321e16b0997eb760439d99500 (patch)
tree3b208286f4e124b6a5facd69f719f0ca2893699d /drivers/rtc
parent18cb6368f0b0fc6a28bd49ee547b4f655db97fc3 (diff)
downloadlinux-1d2e2b65d098c0a321e16b0997eb760439d99500.tar.xz
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 <gururaja.hebbar@ti.com> Cc: Alessandro Zummo <a.zummo@towertech.it> Acked-by: Kevin Hilman <khilman@linaro.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/rtc')
-rw-r--r--drivers/rtc/rtc-omap.c2
1 files changed, 2 insertions, 0 deletions
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);