linux-kernel - Re: [PATCH v5 5/6] platform/x86: Add intel_skl

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Message-ID: <0991caf2-1b7b-c8b5-8558-03b8f0dbb604@redhat.com>
Date:   Wed, 16 Jun 2021 20:13:35 +0200
From:   Hans de Goede <hdegoede@...hat.com>
To:     Andy Shevchenko <andy.shevchenko@...il.com>
Cc:     Daniel Scally <djrscally@...il.com>,
        "Rafael J . Wysocki" <rafael.j.wysocki@...el.com>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Lee Jones <lee.jones@...aro.org>,
        Maximilian Luz <luzmaximilian@...il.com>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        ACPI Devel Maling List <linux-acpi@...r.kernel.org>,
        "open list:GPIO SUBSYSTEM" <linux-gpio@...r.kernel.org>,
        linux-i2c <linux-i2c@...r.kernel.org>,
        Platform Driver <platform-driver-x86@...r.kernel.org>,
        "open list:ACPI COMPONENT ARCHITECTURE (ACPICA)" <devel@...ica.org>,
        Len Brown <lenb@...nel.org>,
        Mika Westerberg <mika.westerberg@...ux.intel.com>,
        Linus Walleij <linus.walleij@...aro.org>,
        Bartosz Golaszewski <bgolaszewski@...libre.com>,
        Wolfram Sang <wsa@...nel.org>,
        Mark Gross <mgross@...ux.intel.com>,
        Robert Moore <robert.moore@...el.com>,
        Erik Kaneda <erik.kaneda@...el.com>,
        Laurent Pinchart <laurent.pinchart@...asonboard.com>,
        kieran.bingham@...asonboard.com
Subject: Re: [PATCH v5 5/6] platform/x86: Add intel_skl_int3472 driver

Hi,

On 6/16/21 8:08 PM, Andy Shevchenko wrote:
> On Wed, Jun 16, 2021 at 8:58 PM Hans de Goede <hdegoede@...hat.com> wrote:
>> On 6/4/21 12:40 AM, Daniel Scally wrote:
>>> ACPI devices with _HID INT3472 are currently matched to the tps68470
>>> driver, however this does not cover all situations in which that _HID
>>> occurs. We've encountered three possibilities:
>>>
>>> 1. On Chrome OS devices, an ACPI device with _HID INT3472 (representing
>>> a physical TPS68470 device) that requires a GPIO and OpRegion driver
>>> 2. On devices designed for Windows, an ACPI device with _HID INT3472
>>> (again representing a physical TPS68470 device) which requires GPIO,
>>> Clock and Regulator drivers.
>>> 3. On other devices designed for Windows, an ACPI device with _HID
>>> INT3472 which does **not** represent a physical TPS68470, and is instead
>>> used as a dummy device to group some system GPIO lines which are meant
>>> to be consumed by the sensor that is dependent on this entry.
>>>
>>> This commit adds a new module, registering a platform driver to deal
>>> with the 3rd scenario plus an i2c driver to deal with #1 and #2, by
>>> querying the CLDB buffer found against INT3472 entries to determine
>>> which is most appropriate.
>>>
>>> Suggested-by: Laurent Pinchart <laurent.pinchart@...asonboard.com>
>>> Signed-off-by: Daniel Scally <djrscally@...il.com>
>>
>> Thank you for your patch, I've applied this patch to my review-hans
>> branch:
>> https://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86.git/log/?h=review-hans
>>
>> I've fixed up the missing static marking of skl_int3472_tps68470_calc_type()
>> spotted by lkp@...el.com while applying the patch to my tree.
> 
> Are you going to apply patch 6 as well?
> IIRC it's acked by Lee.

Ah you are right, it is Acked, but I'm not sure if that ack was for
Lee being ok with it being merged through the pdx86 tree. I'll coordinate
this with Lee off list.

Regards,

Hans