Re: [PATCH v4] pinctrl: mediatek: Implement wake handler and suspend resume

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 





On 11/09/15 12:22, Chung-Yih Wang (王崇懿) wrote:
Hi Sudeep and Maoguang,

    Please correct me if I am wrong. I think the wake_mask Maoguang
implemented is the wake-up configuration and it is how he disabled
other unwanted interrupt sources(e.g. audio jacket insertion) during
suspend.


OK, you are right, I think I now understand the issue. I misread the
code initially thinking the suspend/resume are implemented as
syscore_ops but they are standard device pm ops.

   With Sudeep's patch which we had similar one before, the system got
waken up by audio jack insertion which we don't want. Maoguang tried
to implement wake_mask as the wake-up configuration to keep track of
effective wakeup sources(i.e. those who makes enable_irq_wake) and
write the wake-up configuration in mtk_eint_suspend(). What is your
suggestion to address this issue? Thanks!


One option is to convert them to *_noirq callbacks assuming all the
users of this pinctrl irqchip have sanely implemented their
suspend/resume and don't trigger interrupts between dpm_suspend and
suspend_device_irqs. What do you think ?

Regards,
Sudeep

---->8

@@ -1130,8 +1130,8 @@ static int mtk_eint_resume(struct device *device)
 }

 const struct dev_pm_ops mtk_eint_pm_ops = {
-       .suspend = mtk_eint_suspend,
-       .resume = mtk_eint_resume,
+       .suspend_noirq = mtk_eint_suspend,
+       .resume_noirq = mtk_eint_resume,
 };
--
To unsubscribe from this list: send the line "unsubscribe linux-gpio" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html



[Index of Archives]     [Linux SPI]     [Linux Kernel]     [Linux ARM (vger)]     [Linux ARM MSM]     [Linux Omap]     [Linux Arm]     [Linux Tegra]     [Fedora ARM]     [Linux for Samsung SOC]     [eCos]     [Linux Fastboot]     [Gcc Help]     [Git]     [DCCP]     [IETF Announce]     [Security]     [Linux MIPS]     [Yosemite Campsites]

  Powered by Linux