From: k.kozlowski@samsung•com (Krzysztof Kozlowski)
To: linux-arm-kernel@lists•infradead.org
Subject: [RFC v2 01/13] usb: misc: usb3503: Clean up on driver unbind
Date: Fri, 06 May 2016 08:13:28 +0200 [thread overview]
Message-ID: <572C3608.9060600@samsung.com> (raw)
In-Reply-To: <d78e8151-ee37-a003-2f8f-bc5431906512@osg.samsung.com>
On 05/05/2016 08:32 PM, Javier Martinez Canillas wrote:
> Hello Krzysztof
>
> Patch looks good to me, I just have a trivial comment below.
>
> On 05/05/2016 08:34 AM, Krzysztof Kozlowski wrote:
>> The driver should clean up after itself by unpreparing the clock when it
>> is unbound.
>>
>> Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung•com>
>> ---
>> drivers/usb/misc/usb3503.c | 28 ++++++++++++++++++++++++++++
>> 1 file changed, 28 insertions(+)
>>
>> diff --git a/drivers/usb/misc/usb3503.c b/drivers/usb/misc/usb3503.c
>> index b45cb77c0744..a464636675a6 100644
>> --- a/drivers/usb/misc/usb3503.c
>> +++ b/drivers/usb/misc/usb3503.c
>> @@ -330,6 +330,19 @@ static int usb3503_i2c_probe(struct i2c_client *i2c,
>> return usb3503_probe(hub);
>> }
>>
>> +static int usb3503_i2c_remove(struct i2c_client *i2c)
>> +{
>> + struct usb3503 *hub;
>> +
>> + hub = i2c_get_clientdata(i2c);
>> + if (hub) {
>> + if (hub->clk)
>> + clk_disable_unprepare(hub->clk);
>> + }
>
> I think the following is simpler and easier to read:
>
> if (hub && hub->clk)
> clk_disable_unprepare(hub->clk);
>
Sure, thanks.
Best regards,
Krzysztof
>> +
>> + return 0;
>> +}
>> +
>> static int usb3503_platform_probe(struct platform_device *pdev)
>> {
>> struct usb3503 *hub;
>> @@ -342,6 +355,19 @@ static int usb3503_platform_probe(struct platform_device *pdev)
>> return usb3503_probe(hub);
>> }
>>
>> +static int usb3503_platform_remove(struct platform_device *pdev)
>> +{
>> + struct usb3503 *hub;
>> +
>> + hub = platform_get_drvdata(pdev);
>> + if (hub) {
>> + if (hub->clk)
>> + clk_disable_unprepare(hub->clk);
>> + }
>> +
>
> Ditto.
>
>> + return 0;
>> +}
>> +
>> #ifdef CONFIG_PM_SLEEP
>> static int usb3503_i2c_suspend(struct device *dev)
>> {
>> @@ -395,6 +421,7 @@ static struct i2c_driver usb3503_i2c_driver = {
>> .of_match_table = of_match_ptr(usb3503_of_match),
>> },
>> .probe = usb3503_i2c_probe,
>> + .remove = usb3503_i2c_remove,
>> .id_table = usb3503_id,
>> };
>>
>> @@ -404,6 +431,7 @@ static struct platform_driver usb3503_platform_driver = {
>> .of_match_table = of_match_ptr(usb3503_of_match),
>> },
>> .probe = usb3503_platform_probe,
>> + .remove = usb3503_platform_remove,
>> };
>>
>> static int __init usb3503_init(void)
>>
>
> Reviewed-by: Javier Martinez Canillas <javier@osg•samsung.com>
>
> Best regards,
>
next prev parent reply other threads:[~2016-05-06 6:13 UTC|newest]
Thread overview: 51+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-05-05 12:34 [RFC v2 00/13] usb/mmc/power: Fix USB/LAN when TFTP booting Krzysztof Kozlowski
2016-05-05 12:34 ` [RFC v2 01/13] usb: misc: usb3503: Clean up on driver unbind Krzysztof Kozlowski
2016-05-05 18:32 ` Javier Martinez Canillas
2016-05-06 6:13 ` Krzysztof Kozlowski [this message]
2016-05-05 12:34 ` [RFC v2 02/13] power/mmc: Move pwrseq drivers to power/pwrseq Krzysztof Kozlowski
2016-05-05 18:44 ` Javier Martinez Canillas
2016-05-06 6:15 ` Krzysztof Kozlowski
2016-05-05 12:34 ` [RFC v2 03/13] MAINTAINERS: Retain Ulf Hansson as the same maintainer of pwrseq Krzysztof Kozlowski
2016-05-05 18:46 ` Javier Martinez Canillas
2016-05-05 12:34 ` [RFC v2 04/13] power: pwrseq: Enable COMPILE_TEST for drivers Krzysztof Kozlowski
2016-05-05 18:57 ` Javier Martinez Canillas
2016-05-05 12:34 ` [RFC v2 05/13] power: pwrseq: Remove mmc prefix from mmc_pwrseq Krzysztof Kozlowski
2016-05-05 19:09 ` Javier Martinez Canillas
2016-05-06 6:20 ` Krzysztof Kozlowski
2016-05-05 12:34 ` [RFC v2 06/13] power: pwrseq: Generalize mmc_pwrseq operations by removing mmc prefix Krzysztof Kozlowski
2016-05-05 19:14 ` Javier Martinez Canillas
2016-05-05 12:34 ` [RFC v2 07/13] power: pwrseq: simple: Add support for toggling regulator Krzysztof Kozlowski
2016-05-05 19:31 ` Javier Martinez Canillas
2016-05-06 6:24 ` Krzysztof Kozlowski
2016-05-05 12:34 ` [RFC v2 08/13] usb: hub: Handle deferred probe Krzysztof Kozlowski
2016-05-05 19:33 ` Javier Martinez Canillas
2016-05-05 12:34 ` [RFC v2 09/13] power: pwrseq: Add support for USB hubs with external power Krzysztof Kozlowski
2016-05-05 19:52 ` Javier Martinez Canillas
2016-05-06 6:26 ` Krzysztof Kozlowski
2016-05-05 12:34 ` [RFC v2 10/13] usb: hub: Power sequence the ports on activation Krzysztof Kozlowski
2016-05-05 14:09 ` Alan Stern
2016-05-05 17:37 ` Krzysztof Kozlowski
2016-05-05 19:56 ` Javier Martinez Canillas
2016-05-05 12:34 ` [RFC v2 11/13] usb: port: Parse pwrseq phandle from Device Tree Krzysztof Kozlowski
2016-05-05 20:10 ` Javier Martinez Canillas
2016-05-06 6:27 ` Krzysztof Kozlowski
2016-05-05 12:34 ` [RFC v2 12/13] ARM: dts: exynos: Switch the buck8 to GPIO mode on Odroid U3 Krzysztof Kozlowski
2016-05-05 20:11 ` Javier Martinez Canillas
2016-05-05 12:34 ` [RFC v2 13/13] ARM: dts: exynos: Fix LAN and HUB after bootloader initialization " Krzysztof Kozlowski
2016-05-05 20:16 ` Javier Martinez Canillas
2016-05-06 6:28 ` Krzysztof Kozlowski
2016-05-05 22:42 ` [RFC v2 00/13] usb/mmc/power: Fix USB/LAN when TFTP booting Rob Herring
2016-05-06 5:44 ` Peter Chen
2016-05-06 6:12 ` Krzysztof Kozlowski
2016-05-06 7:15 ` Peter Chen
2016-05-06 6:10 ` Krzysztof Kozlowski
2016-05-06 13:01 ` Rob Herring
2016-05-09 7:46 ` Ulf Hansson
2016-05-09 18:18 ` Rob Herring
2016-05-10 11:02 ` Ulf Hansson
2016-05-28 3:36 ` Peter Chen
2016-05-31 0:58 ` Peter Chen
2016-05-31 11:54 ` Krzysztof Kozlowski
2016-12-13 12:20 ` Hans Verkuil
2016-12-13 12:34 ` Hans Verkuil
2016-12-13 13:53 ` Krzysztof Kozlowski
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