linux-kernel - Re: [PATCH v2] hwmon: pwm-fan: Add pwm-fan driver

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Date:	Mon, 14 Jul 2014 16:25:25 +0200
From:	Tobias Klauser <tklauser@...tanz.ch>
To:	Kamil Debski <k.debski@...sung.com>
Cc:	devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
	lm-sensors@...sensors.org, t.figa@...sung.com,
	m.szyprowski@...sung.com, linux@...ck-us.net,
	linux-pwm@...r.kernel.org
Subject: Re: [PATCH v2] hwmon: pwm-fan: Add pwm-fan driver

On 2014-07-14 at 15:50:35 +0200, Kamil Debski <k.debski@...sung.com> wrote:
> The pwm-fan driver enables control of fans connected to PWM lines.
> This driver uses the PWM framework, so it is compatible with all
> PWM devices that provide drivers through the PWM framework.
> 
> Signed-off-by: Kamil Debski <k.debski@...sung.com>
> ---
> Changes since v1:
> - added documentation to Documentation/hwmon
> - fix checkpatch errors
> 	- added extra description to Kconfig
> 	- removed whitespace errors
> - include files rearranged to be in alphabetical order
> - remove unused sysfs entry pwm1_enable
> - changed the behavior of the set_pwm function
> 	- when 0 PWM value is set pwm_disable is run
> 	- pwm_config return value is checked for errors
> - use of ATTRIBUTE_GROUPS was added
> - removed "Not enouch memory" error message
> - fixed probe return value in case of devm_of_pwm_get error
> - changed hwmon_device_register_with_groups to
>   devm_hwmon_device_register_with_groups
> - changes suspend/resume to use pwm_disable/enable
> - removed unnecessary CONFIG_PM_SLEEP ifdefs

pwm_fan_suspend and pwm_fan_resume should still be enclosed in #ifdef
CONFIG_PM_SLEEP, otherwise you'll get 'defined but not used' compiler
warnings when building without CONFIG_PM being set.

Cheers
Tobias
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