linux-kernel - Re: [PATCH v7 6/8] Input: icn8505 - Switch to firmware_request

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Message-ID: <20191011004759.GD229325@dtor-ws>
Date:   Thu, 10 Oct 2019 17:47:59 -0700
From:   Dmitry Torokhov <dmitry.torokhov@...il.com>
To:     Hans de Goede <hdegoede@...hat.com>
Cc:     Ard Biesheuvel <ard.biesheuvel@...aro.org>,
        Darren Hart <dvhart@...radead.org>,
        Andy Shevchenko <andy@...radead.org>,
        Luis Chamberlain <mcgrof@...nel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        "Rafael J . Wysocki" <rafael@...nel.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
        "H . Peter Anvin" <hpa@...or.com>,
        Jonathan Corbet <corbet@....net>,
        Peter Jones <pjones@...hat.com>,
        Dave Olsthoorn <dave@...aar.me>, x86@...nel.org,
        platform-driver-x86@...r.kernel.org, linux-efi@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-doc@...r.kernel.org,
        linux-input@...r.kernel.org
Subject: Re: [PATCH v7 6/8] Input: icn8505 - Switch to
 firmware_request_platform for retreiving the fw

On Fri, Oct 04, 2019 at 04:50:54PM +0200, Hans de Goede wrote:
> Unfortunately sofar we have been unable to get permission to redistribute
> icn8505 touchscreen firmwares in linux-firmware. This means that people
> need to find and install the firmware themselves before the touchscreen
> will work
> 
> Some UEFI/x86 tablets with an icn8505 touchscreen have a copy of the fw
> embedded in their UEFI boot-services code.
> 
> This commit makes the icn8505 driver use the new firmware_request_platform
> function, which will fallback to looking for such an embedded copy when
> direct filesystem lookup fails. This will make the touchscreen work OOTB
> on devices where there is a fw copy embedded in the UEFI code.
> 
> Signed-off-by: Hans de Goede <hdegoede@...hat.com>

Acked-by: Dmitry Torokhov <dmitry.torokhov@...il.com>

Feel free to merge with the rest of the series.

> ---
>  drivers/input/touchscreen/chipone_icn8505.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/input/touchscreen/chipone_icn8505.c b/drivers/input/touchscreen/chipone_icn8505.c
> index c768186ce856..f9ca5502ac8c 100644
> --- a/drivers/input/touchscreen/chipone_icn8505.c
> +++ b/drivers/input/touchscreen/chipone_icn8505.c
> @@ -288,7 +288,7 @@ static int icn8505_upload_fw(struct icn8505_data *icn8505)
>  	 * we may need it at resume. Having loaded it once will make the
>  	 * firmware class code cache it at suspend/resume.
>  	 */
> -	error = request_firmware(&fw, icn8505->firmware_name, dev);
> +	error = firmware_request_platform(&fw, icn8505->firmware_name, dev);
>  	if (error) {
>  		dev_err(dev, "Firmware request error %d\n", error);
>  		return error;
> -- 
> 2.23.0
> 

-- 
Dmitry