linux-kernel - Re: [PATCH v2 3/3] leds-pwm.c: support ACPI via firmware-node framework

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Date:   Fri, 21 Jun 2019 13:01:28 +0200
From:   Pavel Machek <pavel@....cz>
To:     Nikolaus Voss <nikolaus.voss@...wensteinmedical.de>
Cc:     "Rafael J. Wysocki" <rjw@...ysocki.net>,
        Len Brown <lenb@...nel.org>,
        Robert Moore <robert.moore@...el.com>,
        Erik Schmauss <erik.schmauss@...el.com>,
        Jacek Anaszewski <jacek.anaszewski@...il.com>,
        Dan Murphy <dmurphy@...com>,
        Thierry Reding <thierry.reding@...il.com>,
        linux-acpi@...r.kernel.org, devel@...ica.org,
        linux-leds@...r.kernel.org, linux-pwm@...r.kernel.org,
        linux-kernel@...r.kernel.org, nv@...n.de
Subject: Re: [PATCH v2 3/3] leds-pwm.c: support ACPI via firmware-node
 framework

On Wed 2019-06-12 10:36:08, Nikolaus Voss wrote:
> DT specific handling is replaced by firmware-node abstration to support
> ACPI specification of PWM LEDS.
> 
> Example ASL:
> Device (PWML)
> {
>     Name (_HID, "PRP0001")
>     Name (_DSD, Package () {
>           ToUUID("daffd814-6eba-4d8c-8a91-bc9bbf4aa301"),
>           Package () { Package () {"compatible",
>                                     Package () {"pwm-leds"}}}})
> 
>     Device (PWL0)
>     {
>         Name (_HID, "PRP0001")
>         Name (_DSD, Package () {
>               ToUUID("daffd814-6eba-4d8c-8a91-bc9bbf4aa301"),
>               Package () {
>                            Package () {"label", "alarm-led"},
>                            Package () {"pwms", Package ()
>                                        {\_SB_.PCI0.PWM, 0, 600000, 0}},
>                            Package () {"linux,default-state", "off"}}})
>     }
> }
> 
> Signed-off-by: Nikolaus Voss <nikolaus.voss@...wensteinmedical.de>

Acked-by: Pavel Machek <pavel@....cz>

-- 
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