linux-kernel - Re: [PATCH 3/4] platform/x86: peaq-wmi: Evaluate wmi method with instance number 0x0

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Date:   Sat, 12 Aug 2017 22:12:43 +0200
From:   Hans de Goede <hdegoede@...hat.com>
To:     Pali Rohár <pali.rohar@...il.com>,
        Corentin Chary <corentin.chary@...il.com>,
        Darren Hart <dvhart@...radead.org>,
        Andy Shevchenko <andy@...radead.org>
Cc:     acpi4asus-user@...ts.sourceforge.net,
        platform-driver-x86@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 3/4] platform/x86: peaq-wmi: Evaluate wmi method with
 instance number 0x0

Hi,

On 12-08-17 09:44, Pali Rohár wrote:
> According to Hans de Goede, WMI interface of thh peaq-wmi module has 10
> instances but corresponding ACPI WMBC method does not check Arg0 (instance
> number) at all. Therefore evaluate WMI method with first instance number
> (0x0) instead of second (0x1).
> 
> Signed-off-by: Pali Rohár <pali.rohar@...il.com>
> Cc: Hans de Goede <hdegoede@...hat.com>

Acked-by: Hans de Goede <hdegoede@...hat.com>

Regards,

Hans


> ---
>   drivers/platform/x86/peaq-wmi.c |    2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/platform/x86/peaq-wmi.c b/drivers/platform/x86/peaq-wmi.c
> index 77d1f90..f59a5a2 100644
> --- a/drivers/platform/x86/peaq-wmi.c
> +++ b/drivers/platform/x86/peaq-wmi.c
> @@ -39,7 +39,7 @@ static void peaq_wmi_poll(struct input_polled_dev *dev)
>   	struct acpi_buffer input = { sizeof(dummy), &dummy };
>   	struct acpi_buffer output = { sizeof(obj), &obj };
>   
> -	status = wmi_evaluate_method(PEAQ_DOLBY_BUTTON_GUID, 1,
> +	status = wmi_evaluate_method(PEAQ_DOLBY_BUTTON_GUID, 0,
>   				     PEAQ_DOLBY_BUTTON_METHOD_ID,
>   				     &input, &output);
>   	if (ACPI_FAILURE(status))
>