| Message ID | 1372412109-986-2-git-send-email-gururaja.hebbar@ti.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
Hebbar Gururaja <gururaja.hebbar@ti.com> writes: > 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> > Cc: rtc-linux@googlegroups.com Acked-by: Kevin Hilman <khilman@linaro.org> > --- > :100644 100644 b0ba3fc... 761919d... M drivers/rtc/rtc-omap.c > drivers/rtc/rtc-omap.c | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/drivers/rtc/rtc-omap.c b/drivers/rtc/rtc-omap.c > index b0ba3fc..761919d 100644 > --- a/drivers/rtc/rtc-omap.c > +++ b/drivers/rtc/rtc-omap.c > @@ -423,6 +423,8 @@ 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);
diff --git a/drivers/rtc/rtc-omap.c b/drivers/rtc/rtc-omap.c index b0ba3fc..761919d 100644 --- a/drivers/rtc/rtc-omap.c +++ b/drivers/rtc/rtc-omap.c @@ -423,6 +423,8 @@ 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);
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> Cc: rtc-linux@googlegroups.com --- :100644 100644 b0ba3fc... 761919d... M drivers/rtc/rtc-omap.c drivers/rtc/rtc-omap.c | 2 ++ 1 file changed, 2 insertions(+)