On 29/01/15 18:56, Tony Lindgren wrote: > * Roger Quadros <rogerq@xxxxxx> [150129 03:34]: >> On 28/01/15 19:09, Tony Lindgren wrote: >>> * Roger Quadros <rogerq@xxxxxx> [150128 04:15]: >>>> On 28/01/15 04:19, Chanwoo Choi wrote: >>>>>> >>>>>> I still fail to understand that we need to call disable_irq() in .suspend() and >>>>>> enable_irq() in .resume() >>>>>> >>>>>> can you point me to any other drivers doing so? >>>>> >>>>> You can refer the suspend function in drivers/mfd/max14577.c or drivers/mfd/max77693.c. >>>>> The max14577_suspend() includes the detailed comment for why using disable_irq() in suspend function. >>>>> >>>>> In max14577 case, max14577_suspend() use disable_irq() function because of i2c dependency. >>>>> If max14577 device is wake-up from suspend state before completing the resume sequence >>>>> of i2c, max14577 may fail to read/write i2c communication. >>>> >>>> Thanks for this information. I will add disable/enable_irq() in suspend/resume(). >>> >>> Are the .dts changes safe for me to apply already? >>> >> >> Yes Tony, you can pick them. Thanks. > > OK will apply the dts changes into omap-for-v3.20/dt thanks. > I have also the defconfig changes tagged, will apply those > a bit later probably as a fix after the driver is merged. Sounds good to me. Thanks Tony. cheers, -roger -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
