Hi, On Sat, Nov 21, 2015 at 1:42 AM, Chanwoo Choi <cwcho...@gmail.com> wrote: > Hi, > > On 2015. 11. 20. 오후 2:39, Chanwoo Choi wrote: >> Hi, >> >> On 2015년 11월 13일 02:53, Felipe Balbi wrote: >>> According to latest schematics [1], GPIO_1/VBUSDET >>> on TPS659038 is tied to AM57x GPIO4_21. We can use >>> that as a VBUS interrupt, instead of relying on >>> PMIC's VBUS interrupts which don't seem to be firing >>> on x15 at all. >>> >>> A follow up patch will add support for using this >>> GPIO-based interrupt mechanism for notifying about >>> VBUS. >>> >>> [1] >>> https://github.com/beagleboard/beagleboard-x15/blob/master/BeagleBoard-X15_RevA2.pdf >>> >>> Signed-off-by: Felipe Balbi <ba...@ti.com> >>> --- >>> arch/arm/boot/dts/am57xx-beagle-x15.dts | 1 + >>> 1 file changed, 1 insertion(+) >>> >>> diff --git a/arch/arm/boot/dts/am57xx-beagle-x15.dts >>> b/arch/arm/boot/dts/am57xx-beagle-x15.dts >>> index 6f3a1a7ec5f9..5e47162f7883 100644 >>> --- a/arch/arm/boot/dts/am57xx-beagle-x15.dts >>> +++ b/arch/arm/boot/dts/am57xx-beagle-x15.dts >>> @@ -560,6 +560,7 @@ >>> extcon_usb2: tps659038_usb { >>> compatible = "ti,palmas-usb-vid"; >>> ti,enable-vbus-detection; >>> + interrupts-extended = <&gpio4 21 IRQ_TYPE_EDGE_RISING>; > > vbus-gpio = <&gpio4 21>;
I'm sorry. I'm sending the missing email without writing completion. I agree the Felipe's opinion. Just I think that we can use the following property instead of 'interrupt-extended'. Because I think 'vbus-gpio' is more readability than before. The following property mean the attribute of GPIO pin as VBUS. - vbus-gpio = <&gpio4 21>; Thanks, Chanwoo Choi > >>> }; >>> >>> }; >>> >> >> I check the schematic file. The GPIO4_21 pin is connected as following: >> - GPIO_1/VBUSDET -> PMIC_VBUS_DET -> VBUS_DET -> AM5728 GPIO4_21 pin >> >> Reviewed-by: Chanwoo Choi <cw00.c...@samsung.com> >> >> Thanks, >> Chanwoo Choi >> -- >> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in >> the body of a message to majord...@vger.kernel.org >> More majordomo info at http://vger.kernel.org/majordomo-info.html >> Please read the FAQ at http://www.tux.org/lkml/ >> -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
