linux-kernel - Re: [PATCH 10/15] staging: fbtft: core: Introduce backlight_is

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Mon, 9 Jan 2023 13:15:07 +0200
From:   Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To:     sam@...nborg.org
Cc:     Nicolas Ferre <nicolas.ferre@...rochip.com>,
        Helge Deller <deller@....de>,
        Alexandre Belloni <alexandre.belloni@...tlin.com>,
        Claudiu Beznea <claudiu.beznea@...rochip.com>,
        Antonino Daplas <adaplas@...il.com>,
        Benjamin Herrenschmidt <benh@...nel.crashing.org>,
        Paul Mackerras <paulus@...ba.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Robin van der Gracht <robin@...tonic.nl>,
        Miguel Ojeda <ojeda@...nel.org>, Lee Jones <lee@...nel.org>,
        Daniel Thompson <daniel.thompson@...aro.org>,
        Jingoo Han <jingoohan1@...il.com>, linux-fbdev@...r.kernel.org,
        dri-devel@...ts.freedesktop.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-omap@...r.kernel.org, linux-staging@...ts.linux.dev,
        linuxppc-dev@...ts.ozlabs.org, Stephen Kitt <steve@....org>,
        Thomas Zimmermann <tzimmermann@...e.de>,
        Javier Martinez Canillas <javierm@...hat.com>,
        Peter Suti <peter.suti@...eamunlimited.com>
Subject: Re: [PATCH 10/15] staging: fbtft: core: Introduce
 backlight_is_blank()

On Sat, Jan 07, 2023 at 07:26:24PM +0100, Sam Ravnborg via B4 Submission Endpoint wrote:
> From: Sam Ravnborg <sam@...nborg.org>
> 
> Avoiding direct access to backlight_properties.props.
> 
> Access to the deprecated props.fb_blank replaced by backlight_is_blank().
> Access to props.power is dropped - it was only used for debug.

...

> +	if (blank)
>  		gpiod_set_value(par->gpio.led[0], !polarity);
> +	else
> +		gpiod_set_value(par->gpio.led[0], polarity);

	if (blank)
		polarity = !polarity;

	gpiod_set_value(par->gpio.led[0], polarity);

?

-- 
With Best Regards,
Andy Shevchenko