netdev - Re: [PATCH 6/8] power: reset: at91-reset: add support for sam9x60 SoC

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Date:   Wed, 23 Jan 2019 19:34:43 +0100
From:   Sebastian Reichel <sre@...nel.org>
To:     Nicolas Ferre <nicolas.ferre@...rochip.com>
Cc:     Alexandre Belloni <alexandre.belloni@...tlin.com>,
        Ludovic Desroches <ludovic.desroches@...rochip.com>,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-pm@...r.kernel.org, netdev@...r.kernel.org,
        "David S . Miller" <davem@...emloft.net>,
        linux-usb@...r.kernel.org, Alan Stern <stern@...land.harvard.edu>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Rob Herring <robh+dt@...nel.org>, devicetree@...r.kernel.org
Subject: Re: [PATCH 6/8] power: reset: at91-reset: add support for sam9x60 SoC

Hi,

On Wed, Jan 16, 2019 at 10:57:42AM +0100, Nicolas Ferre wrote:
> Add support for additional reset causes and the proper compatibility
> string for sam9x60 SoC. The restart function is the same as the samx7.
> 
> Signed-off-by: Nicolas Ferre <nicolas.ferre@...rochip.com>
> ---
>  drivers/power/reset/at91-reset.c | 13 +++++++++++++
>  1 file changed, 13 insertions(+)
> 
> diff --git a/drivers/power/reset/at91-reset.c b/drivers/power/reset/at91-reset.c
> index f44a9ffcc2ab..44ca983a49a1 100644
> --- a/drivers/power/reset/at91-reset.c
> +++ b/drivers/power/reset/at91-reset.c
> @@ -44,6 +44,9 @@ enum reset_type {
>  	RESET_TYPE_WATCHDOG	= 2,
>  	RESET_TYPE_SOFTWARE	= 3,
>  	RESET_TYPE_USER		= 4,
> +	RESET_TYPE_CPU_FAIL	= 6,
> +	RESET_TYPE_XTAL_FAIL	= 7,
> +	RESET_TYPE_ULP2		= 8,

what happened to 5? :)

>  };
>  
>  static void __iomem *at91_ramc_base[2], *at91_rstc_base;
> @@ -164,6 +167,15 @@ static void __init at91_reset_status(struct platform_device *pdev)
>  	case RESET_TYPE_USER:
>  		reason = "user reset";
>  		break;
> +	case RESET_TYPE_CPU_FAIL:
> +		reason = "CPU clock failure detection";
> +		break;
> +	case RESET_TYPE_XTAL_FAIL:
> +		reason = "32.768 kHz crystal failure detection";
> +		break;
> +	case RESET_TYPE_ULP2:
> +		reason = "ULP2 reset";
> +		break;
>  	default:
>  		reason = "unknown reset";
>  		break;
> @@ -183,6 +195,7 @@ static const struct of_device_id at91_reset_of_match[] = {
>  	{ .compatible = "atmel,at91sam9g45-rstc", .data = at91sam9g45_restart },
>  	{ .compatible = "atmel,sama5d3-rstc", .data = sama5d3_restart },
>  	{ .compatible = "atmel,samx7-rstc", .data = samx7_restart },
> +	{ .compatible = "microchip,sam9x60-rstc", .data = samx7_restart },
>  	{ /* sentinel */ }
>  };
>  MODULE_DEVICE_TABLE(of, at91_reset_of_match);

Patch looks fine to me. But I will wait a bit with merging, so that
Alexandre or Ludovic have a chance to provide feedback.

-- Sebastian

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