linux-kernel - Re: [PATCH] pwm: atmel-hlcdc: add errata handling for sama5d4

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Message-ID: <20150220170613.424edbb5@bbrezillon>
Date:	Fri, 20 Feb 2015 17:06:13 +0100
From:	Boris Brezillon <boris.brezillon@...e-electrons.com>
To:	Nicolas Ferre <nicolas.ferre@...el.com>
Cc:	<linux-arm-kernel@...ts.infradead.org>, <thierry.reding@...il.com>,
	<linux-pwm@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
	Alexandre Belloni <alexandre.belloni@...e-electrons.com>
Subject: Re: [PATCH] pwm: atmel-hlcdc: add errata handling for sama5d4

Hi Nicolas,

On Fri, 20 Feb 2015 16:58:18 +0100
Nicolas Ferre <nicolas.ferre@...el.com> wrote:

> sama5d4 SoC also has an errata on the HLCDC PWM. It is the same as the sama5d3
> that is forbidding the use of div1 prescaler.
> 
> Signed-off-by: Nicolas Ferre <nicolas.ferre@...el.com>

The "atmel,sama5d4-hlcdc" compatible string is not yet documented in
the atmel-hlcdc MFD driver binding, but this shouldn't hurt, so

Acked-by: Boris Brezillon <boris.brezillon@...e-electrons.com>

> ---
>  drivers/pwm/pwm-atmel-hlcdc.c | 4 ++++
>  1 file changed, 4 insertions(+)
> 
> diff --git a/drivers/pwm/pwm-atmel-hlcdc.c b/drivers/pwm/pwm-atmel-hlcdc.c
> index 522f7075bb1a..fa5feaba25a5 100644
> --- a/drivers/pwm/pwm-atmel-hlcdc.c
> +++ b/drivers/pwm/pwm-atmel-hlcdc.c
> @@ -225,6 +225,10 @@ static const struct of_device_id atmel_hlcdc_dt_ids[] = {
>  		.compatible = "atmel,sama5d3-hlcdc",
>  		.data = &atmel_hlcdc_pwm_sama5d3_errata,
>  	},
> +	{
> +		.compatible = "atmel,sama5d4-hlcdc",
> +		.data = &atmel_hlcdc_pwm_sama5d3_errata,
> +	},
>  	{ /* sentinel */ },
>  };
>  



-- 
Boris Brezillon, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com
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