linux-kernel - Re: [PATCH v2 3/7] mfd: add support for sun6i PRCM (Power/Reset/Clock Management) unit

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Message-ID: <20140509071246.GE5767@lee--X1>
Date:	Fri, 9 May 2014 08:12:46 +0100
From:	Lee Jones <lee.jones@...aro.org>
To:	Boris BREZILLON <boris.brezillon@...e-electrons.com>
Cc:	Emilio López <emilio@...pez.com.ar>,
	Mike Turquette <mturquette@...aro.org>,
	Samuel Ortiz <sameo@...ux.intel.com>,
	Chen-Yu Tsai <wens@...e.org>,
	Maxime Ripard <maxime.ripard@...e-electrons.com>,
	Philipp Zabel <p.zabel@...gutronix.de>,
	Shuge <shuge@...winnertech.com>, kevin@...winnertech.com,
	Hans de Goede <hdegoede@...hat.com>,
	Randy Dunlap <rdunlap@...radead.org>,
	devicetree@...r.kernel.org, linux-doc@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	dev@...ux-sunxi.org
Subject: Re: [PATCH v2 3/7] mfd: add support for sun6i PRCM
 (Power/Reset/Clock Management) unit

> >> +static struct platform_driver sun6i_prcm_driver = {
> >> +	.driver = {
> >> +		.name = "sun6i-prcm",
> >> +		.owner = THIS_MODULE,
> >> +		.of_match_table = sun6i_prcm_dt_ids,
> >> +	},
> >> +	.probe = sun6i_prcm_probe,
> > You need a .remove() call-back.
> 
> This driver cannot be compiled as module (see the Kconfig definition)
> and the devices are not hotpluggable, as a result a probed device will
> never be removed.
> 
> Do you still want me to implement the remove function ?

.remove() also be run on shut down.  It's best practice to have one.

> >> +module_platform_driver(sun6i_prcm_driver);
> >> +
> >> +MODULE_AUTHOR("Boris BREZILLON <boris.brezillon@...e-electrons.com>");
> >> +MODULE_DESCRIPTION("Allwinner sun6i PRCM driver");
> >> +MODULE_LICENSE("GPL v2");
> 

-- 
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
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