Re: NXP NFC version and ACPI

[Sedat Dilek <sedat.dilek@gmail.com>]

On Wed, Dec 5, 2018 at 8:38 AM Daniel Lezcano <daniel.lezcano@linaro.org> wrote:
>
>
> Hi,
>
> the discussion reference is on github [1].
>
> I acquired a Lenovo x280 with a NFC chip. It is unclear what chip is it
> really, it is called NXP NPC300 which could be a PN7xxx chip range.
>
> A hacked version of an old deprecated out-of-tree module made the PN5xxx
> to work with my laptop but I suspect it brought some subtle instability
> on my system.
>
> Now it would be nice to have this correctly supported upstream.
>
> I dumped the ACPI DSDT table and got the id NXP1001. This one is not
> listed in the match table of the nxp-nci driver.
>
>  - is the driver missing for the so called NXP NPC300 ?
>  - should the NXP1001 matching string to be added to nxp-nci?
>  - is my firmware sending me garbage ?
>
> Thanks in advance for any input
>

[ CC Andy ]

Hi Daniel,

I was able to get a NXP NPC300 NFC device run on Lenovo ThinkPad T470.

Look at the patchset "[PATCH v2 00/12] NFC: nxp-nci: clean up and
support new ID".
I have tested on top of Linux v5.1.1.

Here I have set...

scripts/config -m NFC_NCI -m NFC_NXP_NCI -m NFC_NXP_NCI_I2C -e
PINCTRL_SUNRISEPOINT

Please give this a try and report.

For details see the below references.

Thanks.

Regards,
- Sedat -

[1] https://patchwork.kernel.org/project/linux-wireless/list/?submitter=33142
[2] https://marc.info/?t=155740978400003&r=1&w=2
[3] https://marc.info/?t=155774435600001&r=1&w=2