Hi Joseph,
After checking the dsl of pipo, I think you should add the property values as follows in the ACPI configuration.
Then you can check the driver can get these values in nau8824_read_device_properties.
Name (_DSD, Package () {
ToUUID ("daffd814-6eba-4d8c-8a91-bc9bbf4aa301"),
Package () {
/* Enable jack detection via JKDET pin */
Package () { "nuvoton,jkdet-enable", 1 },
/*
* JKDET pin is pulled up by R389 on board.
* JKDET pin polarity = active low
*/
Package () { "nuvoton,jkdet-pull-enable", 1 },
Package () { "nuvoton,jkdet-pull-up", 1 },
Package () { "nuvoton,jkdet-polarity", 1 },
/* VDDA(1.8) * 1.53 = 2.754 */
Package () { "nuvoton,micbias-voltage", 6 },
/* VREF Impedance = 125 kOhm */
Package () { "nuvoton,vref-impedance", 2 },
/*
* Setup 4 buttons impedance according to
* Android specification
*/
Package () { "nuvoton,sar-threshold-num", 4 },
Package () { "nuvoton,sar-threshold",
Package() { 0x0a, 0x14, 0x26, 0x73 } },
/*
* Coeff 0-15 used to adjust threshold level
* 0 for low resist range
*/
Package () { "nuvoton,sar-hysteresis", 0 },
/* SAR tracking gain based on 2.754 micbias-voltage */
Package () { "nuvoton,sar-voltage", 6 },
/* 100ms short key press debounce */
Package () { "nuvoton,short-key-debounce", 3 },
/* 2^(7+2) = 512 ms insert/eject debounce */
Package () { "nuvoton,jack-insert-debounce", 7 },
/* debounce not needed for eject normally */
Package () { "nuvoton,jack-eject-debounce", 0 },
}
})
BR.
John Hsu
AC30, Nuvoton Technology Corp.
+886 3 5770066 Ext. 37111
KCHSU0@xxxxxxxxxxx<mailto:KCHSU0@xxxxxxxxxxx>
From: Joseph Wang [mailto:joequant@xxxxxxxxx]
Sent: Sunday, December 04, 2016 10:19 PM
To: Pierre-Louis Bossart
Cc: AP MS30 Linux ALSA; AC30 KCHsu0
Subject: Re: Cherry trail and Nau 88l24 codec
I've dumped the DSDT into a github gist
https://gist.github.com/joequant/8fbdcbb71204562505b6647b18c608ef
Nothing particularly strange to me stands out. I'm trying to get in touch twith the manufacturer, and I'm here in HK so if I get really bored or adventurous, I might just walk over to the factory and see if I can meet the designers directly.
Also, just a note of thanks for the support for open source by Intel. I realize that driver design is a pain, but it's really useful. The reason that I'm extremely keen to get this working is that they've put together a new laptop configuration that I've never seen before. What they've done is to rip out the hard drive and replace it with an MMC device. That recreates a device that is both superlight and supercheap.
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