From: Boris BREZILLON <boris.brezillon@free-electrons.com>
To: Lee Jones <lee.jones@linaro.org>
Cc: "Emilio López" <emilio@elopez.com.ar>,
"Mike Turquette" <mturquette@linaro.org>,
"Samuel Ortiz" <sameo@linux.intel.com>,
"Chen-Yu Tsai" <wens@csie.org>,
"Maxime Ripard" <maxime.ripard@free-electrons.com>,
"Philipp Zabel" <p.zabel@pengutronix.de>,
Shuge <shuge@allwinnertech.com>,
kevin@allwinnertech.com, "Hans de Goede" <hdegoede@redhat.com>,
"Randy Dunlap" <rdunlap@infradead.org>,
devicetree@vger.kernel.org, linux-doc@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, dev@linux-sunxi.org
Subject: Re: [PATCH v2 3/7] mfd: add support for sun6i PRCM (Power/Reset/Clock Management) unit
Date: Thu, 08 May 2014 22:04:54 +0200 [thread overview]
Message-ID: <536BE366.8080907@free-electrons.com> (raw)
In-Reply-To: <20140508110205.GB5767@lee--X1>
On 08/05/2014 13:02, Lee Jones wrote:
>> The PRCM (Power/Reset/Clock Management) block exposes several subdevices
>> in different subsystems (clk, reset ...)
>>
>> Add basic support for the PRCM unit with clk (AR100, AHB0, and APB0 clks)
>> and reset controller subdevices.
>>
>> Other subdevices might be added later (if needed).
>>
>> Signed-off-by: Boris BREZILLON <boris.brezillon@free-electrons.com>
>> ---
>> drivers/mfd/Kconfig | 8 +++
>> drivers/mfd/Makefile | 1 +
>> drivers/mfd/sun6i-prcm.c | 151 +++++++++++++++++++++++++++++++++++++++++++++++
>> 3 files changed, 160 insertions(+)
>> create mode 100644 drivers/mfd/sun6i-prcm.c
> [...]
>
>> +#include <linux/module.h>
>> +#include <linux/kernel.h>
>> +#include <linux/errno.h>
>> +#include <linux/err.h>
>> +#include <linux/spinlock.h>
>> +#include <linux/io.h>
>> +#include <linux/slab.h>
>> +#include <linux/mutex.h>
>> +#include <linux/completion.h>
>> +#include <linux/irq.h>
>> +#include <linux/jiffies.h>
>> +#include <linux/bitops.h>
>> +#include <linux/fs.h>
>> +#include <linux/of.h>
>> +#include <linux/of_irq.h>
>> +#include <linux/platform_device.h>
>> +#include <linux/uaccess.h>
>> +#include <linux/mfd/core.h>
> I'm pretty sure you don't need half of these. Please only add the
> ones you make use of.
Sure (this is what happens when you copy/paste from another driver :-))
>
> [...]
>
>> + dev_info(&pdev->dev, "PRCM initialized\n");
> Please remove this from here.
Okay.
>
> [...]
>
>> +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 ?
>
>> +};
>> +module_platform_driver(sun6i_prcm_driver);
>> +
>> +MODULE_AUTHOR("Boris BREZILLON <boris.brezillon@free-electrons.com>");
>> +MODULE_DESCRIPTION("Allwinner sun6i PRCM driver");
>> +MODULE_LICENSE("GPL v2");
--
Boris Brezillon, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com
next prev parent reply other threads:[~2014-05-08 20:05 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-05-07 17:25 [PATCH v2 0/7] mfd: add basic sun6i A31 PRCM support Boris BREZILLON
2014-05-07 17:25 ` [PATCH v2 1/7] reset: sunxi: document sunxi's reset controllers bindings Boris BREZILLON
2014-05-08 3:05 ` Maxime Ripard
2014-05-07 17:25 ` [PATCH v2 2/7] reset: sunxi: allow MFD subdevices probe Boris BREZILLON
2014-05-08 3:07 ` Maxime Ripard
2014-05-08 20:05 ` Boris BREZILLON
2014-05-07 17:25 ` [PATCH v2 3/7] mfd: add support for sun6i PRCM (Power/Reset/Clock Management) unit Boris BREZILLON
2014-05-08 3:09 ` Maxime Ripard
2014-05-08 11:02 ` Lee Jones
2014-05-08 20:04 ` Boris BREZILLON [this message]
2014-05-09 5:05 ` [linux-sunxi] " Priit Laes
2014-05-09 7:11 ` Lee Jones
2014-05-09 7:12 ` Lee Jones
2014-05-09 7:34 ` Hans de Goede
2014-05-09 8:08 ` Lee Jones
[not found] ` <536C8F71.5040604@redhat.com>
2014-05-09 8:28 ` Boris BREZILLON
2014-05-09 8:59 ` Lee Jones
2014-05-07 17:25 ` [PATCH v2 4/7] mfd: sun6i-prcm: document DT bindings Boris BREZILLON
2014-05-07 17:25 ` [PATCH v2 5/7] clk: sunxi: add PRCM (Power/Reset/Clock Management) clks support Boris BREZILLON
2014-05-08 3:11 ` Maxime Ripard
2014-05-07 17:25 ` [PATCH v2 6/7] clk: sunxi: document PRCM clock compatible strings Boris BREZILLON
2014-05-07 17:25 ` [PATCH v2 7/7] ARM: sunxi: dt: add PRCM clk and reset controller subdevices Boris BREZILLON
2014-05-08 3:17 ` Maxime Ripard
2014-05-08 3:40 ` Chen-Yu Tsai
2014-05-08 14:29 ` Maxime Ripard
2014-05-08 20:08 ` Boris BREZILLON
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