On Tue, Sep 20, 2016 at 12:14:50PM +0200, Johannes Stezenbach wrote: > On Tue, Sep 20, 2016 at 12:18:40PM +0300, Mika Westerberg wrote: > > On Mon, Sep 19, 2016 at 10:36:22PM +0200, Johannes Stezenbach wrote: > > > Now my question is, is this pin 0x004E the same as this > > > in /proc/interrupts which fires on LID event? > > > > > > 158: 2 0 0 0 chv-gpio 43 ACPI:Event > > > > Yes, it is that one and it triggers \_SB.GPO0._E4E() method to be called > > whenever low edge is detected on the GPIO line. This method then handles > > many things depending on what the AML code reads from ^^PCI0.I2C1.ENID > > notifying the power button device (PWRB) among other things. > > Thanks for confirmation, but it circles back to the question > how to map the numbers. Since the document that describes it > is not public, it would be useful if you could add comments > to pinctrl-cherryview.c that describes it. > Or did I just miss something? I don't think it is relevant here. The driver uses only wired OR interrupt which is provided in _CRS of the device. > > I suppose you already have CONFIG_ACPI_I2C_OPREGION=y in your .config? > > That allows the AML code to access the I2C bus using the I2C driver. > > > > > The FADT has > > > Control Method Power Button (V1) : 0 > > > Control Method Sleep Button (V1) : 1 > > > > > > PWRBTN_EN in PM1 is set. But PWRBTN press causes thermal irq. > > > > Yeah, it uses control method power button (PNP0C0C) and ACPI GPIO event > > to trigger changes in that. > > I'm confused again because I thought "Control Method Power Button (V1) : 0" > means it is a fixed power button, however the DSDT also has I misread it, sorry about that. Can you check if you have: Hardware Reduced (V5) : 1 in that FADT table? If yes, it probably does not have the normal Fixed power button but instead it has something called "Windows button array device" with _HID/_CID of PNP0C40. Looking at your dsdt.dsl, this looks to be the case. That device is driven by soc_button_array.c driver which can be enabled with CONFIG_KEYBOARD_GPIO=y and CONFIG_INPUT_SOC_BUTTON_ARRAY=y. Can you check if you have that enabled already? You should actually see it in /proc/interrupts with names like "power" and so on. -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
