linux-kernel - Re: [PATCH 07/11] extcon: intel-int3496: Add support for controlling the USB-role mux

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Date:   Mon, 4 Sep 2017 16:11:26 +0200
From:   Hans de Goede <hdegoede@...hat.com>
To:     Andy Shevchenko <andy.shevchenko@...il.com>
Cc:     MyungJoo Ham <myungjoo.ham@...sung.com>,
        Chanwoo Choi <cw00.choi@...sung.com>,
        Guenter Roeck <linux@...ck-us.net>,
        Heikki Krogerus <heikki.krogerus@...ux.intel.com>,
        Darren Hart <dvhart@...radead.org>,
        Andy Shevchenko <andy@...radead.org>,
        Peter Rosin <peda@...ntia.se>,
        Mathias Nyman <mathias.nyman@...el.com>,
        Platform Driver <platform-driver-x86@...r.kernel.org>,
        devel@...verdev.osuosl.org,
        Kuppuswamy Sathyanarayanan 
        <sathyanarayanan.kuppuswamy@...ux.intel.com>,
        Sathyanarayanan Kuppuswamy Natarajan <sathyaosid@...il.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        USB <linux-usb@...r.kernel.org>
Subject: Re: [PATCH 07/11] extcon: intel-int3496: Add support for controlling
 the USB-role mux

Hi,

On 02-09-17 12:39, Andy Shevchenko wrote:
> On Sat, Sep 2, 2017 at 12:48 AM, Hans de Goede <hdegoede@...hat.com> wrote:
>> Cherry Trail SoCs have a built-in USB-role mux for switching between
>> the host and device controllers, rather then using an external mux
>> controller by a GPIO.
>>
>> There is a driver using the mux-subsys to control this mux, this
>> commit adds support to the intel-int3496 driver to get a mux_controller
>> handle for the mux and set the mux through the mux-subsys rather then
>> through a GPIO.
> 
>>          tristate "Intel INT3496 ACPI device extcon driver"
>>          depends on GPIOLIB && ACPI && (X86 || COMPILE_TEST)
>> +       select MULTIPLEXER
> 
>> +#include <asm/cpu_device_id.h>
>> +#include <asm/intel-family.h>
> 
> I think it is going to fail when !X86 && COMPILE_TEST.

Good catch, I've dropped the || COMPILE_TEST for v2

>>   static void int3496_do_usb_id(struct work_struct *work)
>>   {
>>          struct int3496_data *data =
>>                  container_of(work, struct int3496_data, work.work);
>> -       int id = gpiod_get_value_cansleep(data->gpio_usb_id);
>> +       int ret, id = gpiod_get_value_cansleep(data->gpio_usb_id);
> 
> Better to keep them on separate lines.

Ok, fixed for v2.

Regards,

Hans