linux-kernel - Re: hwmon: xgene: Add support for X-Gene hwmon driver

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Message-Id: <9D204F6B-7C99-4543-87BF-4D9FC3F6475C@apm.com>
Date:	Sat, 23 Jul 2016 20:00:52 -0700
From:	Hoan Tran <hotran@....com>
To:	Itaru Kitayama <itaru.kitayama@...en.jp>
Cc:	Jean Delvare <jdelvare@...e.com>,
	Guenter Roeck <linux@...ck-us.net>,
	Jonathan Corbet <corbet@....net>,
	Rob Herring <robh+dt@...nel.org>,
	Jassi Brar <jassisinghbrar@...il.com>,
	Ashwin Chaugule <ashwin.chaugule@...aro.org>,
	Duc Dang <dhdang@....com>, lho@....com,
	linux-hwmon@...r.kernel.org, linux-doc@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	devicetree@...r.kernel.org
Subject: Re: hwmon: xgene: Add support for X-Gene hwmon driver

Hi Itaru,


> On Jul 23, 2016, at 16:51, Itaru Kitayama <itaru.kitayama@...en.jp> wrote:
> 
> Hi Hoan,
> 
> I've been testing your patch set on a Rev B0 system with ACPI, in dmesg
> I see:
> 
> [    1.546444] xgene-slimpro-i2c APMC0D40:00: i2c mailbox channel request failed
> [    1.570062] xgene-slimpro-hwmon APMC0D29:00: no pcc-channel property
> 
> what other packages or subsystems do we need to make this work on ACPI-based systems?

You need the new firmware and BIOS which support ACPI PCC mailbox.

Thanks
Hoan

> 
> Itaru