linux-kernel - Re: [PATCH 2/2] hwmon: (brcmstb) Add driver for Broadcom STB DPFE

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]

Message-ID: <20170418205839.GA3554@roeck-us.net>
Date:   Tue, 18 Apr 2017 13:58:39 -0700
From:   Guenter Roeck <linux@...ck-us.net>
To:     Markus Mayer <code@...yer.net>
Cc:     Jean Delvare <jdelvare@...e.com>, Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Florian Fainelli <f.fainelli@...il.com>,
        Markus Mayer <mmayer@...adcom.com>,
        Broadcom Kernel List <bcm-kernel-feedback-list@...adcom.com>,
        Linux HWMON List <linux-hwmon@...r.kernel.org>,
        Device Tree List <devicetree@...r.kernel.org>,
        ARM Kernel List <linux-arm-kernel@...ts.infradead.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 2/2] hwmon: (brcmstb) Add driver for Broadcom STB DPFE

Hi Markus,

On Tue, Apr 18, 2017 at 01:17:02PM -0700, Markus Mayer wrote:
> From: Markus Mayer <mmayer@...adcom.com>
> 
> This driver allows access to DRAM properties, such as the refresh rate,
> via the Broadcom STB DDR PHY Front End (DPFE). The refresh rate can be
> used as indirect indicator of the DRAM temperature.
> 
> The driver also allows setting of the sampling interval.
> 
> Signed-off-by: Markus Mayer <mmayer@...adcom.com>
> ---
[ ... ]

> +
> +static SENSOR_DEVICE_ATTR(dpfe_info, 0444, show_info, NULL, 1000);
> +static SENSOR_DEVICE_ATTR(dpfe_refresh, 0644, show_refresh, store_refresh,
> +			  1000);
> +static SENSOR_DEVICE_ATTR(dpfe_vendor, 0444, show_vendor, NULL, 1000);
> +static struct attribute *dpfe_attrs[] = {
> +	&sensor_dev_attr_dpfe_info.dev_attr.attr,
> +	&sensor_dev_attr_dpfe_refresh.dev_attr.attr,
> +	&sensor_dev_attr_dpfe_vendor.dev_attr.attr,
> +	NULL
> +};
> +ATTRIBUTE_GROUPS(dpfe);
> +

There is not a single standard hwmon attribute. I don't know how
to classify this driver, and where it should reside, but it is not
a hwmon driver. 

Thanks,
Guenter