On Sat, Mar 12, 2016 at 01:06:00AM +0800, Qipeng Zha wrote: > Some module need to enable RX invertion config on BXT platform. > > Signed-off-by: Qi Zheng <qi.zheng@xxxxxxxxx> > Signed-off-by: Qipeng Zha <qipeng.zha@xxxxxxxxx> > Can I ask what module might need this? I'm not so certain we want to add anything like this to the driver to be honest. The "pi330532" device on Broxton requires this function to manually trigger an GPIO input interrupt. That is to say, actually no signal change on the pin but toggling this RX inversion bit to make the GPIO controller believes there is voltage change on the pin thus triggering the interrupt. -- 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
RE: [PATCH 1/3] pinctrl: Intel: add RX invertion config
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- Subject: RE: [PATCH 1/3] pinctrl: Intel: add RX invertion config
- From: "Zheng, Qi" <qi.zheng@xxxxxxxxx>
- Date: Mon, 14 Mar 2016 01:10:07 +0000
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