RE: [PATCH] ACPI: Parse entire table as a term_list for Dell XPS 9570 and Precision M5530

[Schmauss, Erik]

Hi,
> -----Original Message-----
> From: linux-acpi-owner@xxxxxxxxxxxxxxx [mailto:linux-acpi-
> owner@xxxxxxxxxxxxxxx] On Behalf Of Andy Shevchenko
> Sent: Tuesday, January 30, 2018 10:18 AM
> To: Kai-Heng Feng <kai.heng.feng@xxxxxxxxxxxxx>
> Cc: Rafael J. Wysocki <rjw@xxxxxxxxxxxxx>; Len Brown <lenb@xxxxxxxxxx>; ACPI
> Devel Maling List <linux-acpi@xxxxxxxxxxxxxxx>; Linux Kernel Mailing List <linux-
> kernel@xxxxxxxxxxxxxxx>; Mario Limonciello <mario.limonciello@xxxxxxxx>
> Subject: Re: [PATCH] ACPI: Parse entire table as a term_list for Dell XPS 9570 and
> Precision M5530
> 
> On Tue, Jan 30, 2018 at 8:07 AM, Kai-Heng Feng
> <kai.heng.feng@xxxxxxxxxxxxx> wrote:
> > The i2c touchpad on Dell XPS 9570 and Precision M5530 doesn't work out
> > of box.
> >
> > The touchpad relies on its _INI method to update its _HID value from
> > XXXX0000 to SYNA2393.
> > Also, the _STA relies on value of I2CN to report correct status.
> >
> > Set acpi_gbl_parse_table_as_term_list so the value of I2CN can be
> > correctly set up, and _INI can get run. The ACPI table in this machine
> > is designed to get parsed this way.

I thought I would give everyone an update: we are getting close to finishing patches to enable this term list parsing by default as well as a few other fixes with forward referencing of package elements. Once we have established that these patches are stable, we will get rid of acpi_gbl_parse_table_as_term_list. So this quirk may not be needed in the near future...

Erik
> >
> > Also, change the quirk table to a more generic name.
> 
> > +static int set_gbl_term_list(const struct dmi_system_id *id) {
> > +       pr_notice("%s detected - parse the entire table as a term_list\n",
> > +                 id->ident);
> > +       acpi_gbl_parse_table_as_term_list = 1;
> > +       return 0;
> > +}
> >  #endif
> 
> The above should be outside of another #ifdef. Basically after the above #endif.
> 
> >  #else
> 
> >  #endif
> 
> > @@ -1005,7 +1034,7 @@ void __init acpi_early_init(void)
> 
> >          * If the machine falls into the DMI check table,
> >          * DSDT will be copied to memory
> >          */
> 
> It might make sense to adjust comment above that it's about quirks in general.
> And, if needed, move current content to actual DMI group of records.
> 
> > -       dmi_check_system(dsdt_dmi_table);
> > +       dmi_check_system(acpi_quirks_dmi_table);
> 
> --
> With Best Regards,
> Andy Shevchenko
> --
> 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