linux-kernel - Re: [PATCH v4 0/3] hwmon: xgene: Add support for X-Gene hwmon driver

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Date:	Fri, 22 Jul 2016 09:27:46 -0700
From:	Hoan Tran <hotran@....com>
To:	Guenter Roeck <linux@...ck-us.net>
Cc:	Jean Delvare <jdelvare@...e.com>, 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>, Loc Ho <lho@....com>,
	linux-hwmon@...r.kernel.org, linux-doc@...r.kernel.org,
	lkml <linux-kernel@...r.kernel.org>,
	linux-arm-kernel@...ts.infradead.org,
	Devicetree List <devicetree@...r.kernel.org>
Subject: Re: [PATCH v4 0/3] hwmon: xgene: Add support for X-Gene hwmon driver

Hi Guenter,

On Thu, Jul 21, 2016 at 6:30 PM, Guenter Roeck <linux@...ck-us.net> wrote:
> On 07/21/2016 03:37 PM, Hoan Tran wrote:
>>
>> This patch set adds hardware temperature and power reading support for
>> APM X-Gene SoC using the mailbox communication interface.
>> For device tree, it is the standard DT mailbox.
>> For ACPI, it is the PCC mailbox.
>>
>> For ACPI, this patch is built on top and depends on patch[1]:
>> [1] http://www.spinics.net/lists/linux-acpi/msg66041.html
>>   - [PATCH v3] mailbox: pcc: Support HW-Reduced Communication Subspace
>> type 2
>>
>
> One thought: You might consider taking ACPI support out of the driver for
> now,
> and add it back in after the dependent patch was accepted.
>

Thanks for your suggestion. Rafael agreed to apply this patch as the
link below but he didn't do it yet.
http://www.spinics.net/lists/linux-acpi/msg67100.html
Let me check with him again.

Thanks
Hoan

> Guenter
>
>
>> v4
>>   - Return 0 if driver registers successfully
>>
>> v3
>>   - Order include files alphabetically
>>   - Use sign_extend32() to decode temperature
>>   - Use DEVICE_ATTR_RO() for temperature and power attributes
>>   - Temperature and power attributes start with index 1
>>   - Use !!amsg->param2
>>   - Fix checkpatch WARNING with --strict flag
>>   - Use hwmon_device_register_with_groups()
>>   - Check invalid sensor data
>>
>> v2
>>   - Increase power reading accurateness by using 2 registers
>> (a register for Watt, another for milli-Watt)
>>   - Remove power reading for SoC
>>   - Fix review comments from Guenter
>>
>> v1
>>   - Initial
>>
>> Hoan Tran (3):
>>    Documentation: dtb: xgene: Add hwmon dts binding documentation
>>    hwmon: xgene: Add hwmon driver
>>    arm64: dts: apm: Add X-Gene SoC hwmon to device tree
>>
>>   .../devicetree/bindings/hwmon/apm-xgene-hwmon.txt  |  14 +
>>   Documentation/hwmon/xgene-hwmon                    |  30 +
>>   arch/arm64/boot/dts/apm/apm-shadowcat.dtsi         |   5 +
>>   arch/arm64/boot/dts/apm/apm-storm.dtsi             |   5 +
>>   drivers/hwmon/Kconfig                              |   7 +
>>   drivers/hwmon/Makefile                             |   1 +
>>   drivers/hwmon/xgene-hwmon.c                        | 755
>> +++++++++++++++++++++
>>   7 files changed, 817 insertions(+)
>>   create mode 100644
>> Documentation/devicetree/bindings/hwmon/apm-xgene-hwmon.txt
>>   create mode 100644 Documentation/hwmon/xgene-hwmon
>>   create mode 100644 drivers/hwmon/xgene-hwmon.c
>>
>