| Message ID | 1462451666-17945-2-git-send-email-k.kozlowski@samsung.com (mailing list archive) |
|---|---|
| State | RFC, archived |
| Headers | show |
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); > + > + 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,
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, > -- To unsubscribe from this list: send the line "unsubscribe linux-pm" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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); + } + + 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); + } + + 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)
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(+)