linux-kernel - Re: [PATCH v8 4/7] pwm: ntxec: Add driver for PWM function in Netronix EC

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Message-ID: <YAhqdGMd/2Iviy2g@ulmo>
Date:   Wed, 20 Jan 2021 18:37:56 +0100
From:   Thierry Reding <thierry.reding@...il.com>
To:     Jonathan Neuschäfer <j.neuschaefer@....net>
Cc:     linux-kernel@...r.kernel.org, Lee Jones <lee.jones@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Uwe Kleine-König 
        <u.kleine-koenig@...gutronix.de>,
        Alessandro Zummo <a.zummo@...ertech.it>,
        Alexandre Belloni <alexandre.belloni@...tlin.com>,
        Shawn Guo <shawnguo@...nel.org>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        Fabio Estevam <festevam@...il.com>,
        NXP Linux Team <linux-imx@....com>,
        Sam Ravnborg <sam@...nborg.org>,
        Linus Walleij <linus.walleij@...aro.org>,
        Heiko Stuebner <heiko.stuebner@...obroma-systems.com>,
        Stephan Gerhold <stephan@...hold.net>,
        Lubomir Rintel <lkundrak@...sk>,
        Mark Brown <broonie@...nel.org>, allen <allen.chen@....com.tw>,
        Mauro Carvalho Chehab <mchehab+huawei@...nel.org>,
        "David S. Miller" <davem@...emloft.net>,
        devicetree@...r.kernel.org, linux-pwm@...r.kernel.org,
        linux-rtc@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        Heiko Stuebner <heiko@...ech.de>,
        Josua Mayer <josua.mayer@....eu>,
        Andreas Kemnade <andreas@...nade.info>,
        Arnd Bergmann <arnd@...db.de>, Daniel Palmer <daniel@...f.com>,
        Andy Shevchenko <andy.shevchenko@...il.com>
Subject: Re: [PATCH v8 4/7] pwm: ntxec: Add driver for PWM function in
 Netronix EC

On Sat, Jan 16, 2021 at 08:48:23PM +0100, Jonathan Neuschäfer wrote:
> The Netronix EC provides a PWM output which is used for the backlight
> on some ebook readers. This patches adds a driver for the PWM output.
> 
> The .get_state callback is not implemented, because the PWM state can't
> be read back from the hardware.
> 
> Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@....net>
> Reviewed-by: Uwe Kleine-König <u.kleine-koenig@...gutronix.de>

Acked-by: Thierry Reding <thierry.reding@...il.com>

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