2022-11-23 09:48:43

by Lukas Bulwahn

[permalink] [raw]
Subject: [PATCH v2] clocksource: ingenic-ost: define pm functions properly in platform_driver struct

Commit ca7b72b5a5f2 ("clocksource: Add driver for the Ingenic JZ47xx OST")
adds the struct platform_driver ingenic_ost_driver, with the definition of
pm functions under the non-existing config PM_SUSPEND, which means the
intended pm functions were never actually included in any build.

As the only callbacks are .suspend_noirq and .resume_noirq, we can assume
that it is intended to be CONFIG_PM_SLEEP.

Since commit 1a3c7bb08826 ("PM: core: Add new *_PM_OPS macros, deprecate
old ones"), the default pattern for platform_driver definitions
conditional for CONFIG_PM_SLEEP is to use pm_sleep_ptr().

As __maybe_unused annotations on the dev_pm_ops structure and its callbacks
are not needed anymore, remove these as well.

Suggested-by: Paul Cercueil <[email protected]>
Signed-off-by: Lukas Bulwahn <[email protected]>
---
v1: https://lore.kernel.org/all/[email protected]/

v1 -> v2:
- incorporated Paul Cercueil's feedback:
- changed to pm_sleep_ptr
- dropped Fixes: tag

drivers/clocksource/ingenic-ost.c | 10 ++++------
1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/drivers/clocksource/ingenic-ost.c b/drivers/clocksource/ingenic-ost.c
index 06d25754e606..9f7c280a1336 100644
--- a/drivers/clocksource/ingenic-ost.c
+++ b/drivers/clocksource/ingenic-ost.c
@@ -141,7 +141,7 @@ static int __init ingenic_ost_probe(struct platform_device *pdev)
return 0;
}

-static int __maybe_unused ingenic_ost_suspend(struct device *dev)
+static int ingenic_ost_suspend(struct device *dev)
{
struct ingenic_ost *ost = dev_get_drvdata(dev);

@@ -150,14 +150,14 @@ static int __maybe_unused ingenic_ost_suspend(struct device *dev)
return 0;
}

-static int __maybe_unused ingenic_ost_resume(struct device *dev)
+static int ingenic_ost_resume(struct device *dev)
{
struct ingenic_ost *ost = dev_get_drvdata(dev);

return clk_enable(ost->clk);
}

-static const struct dev_pm_ops __maybe_unused ingenic_ost_pm_ops = {
+static const struct dev_pm_ops ingenic_ost_pm_ops = {
/* _noirq: We want the OST clock to be gated last / ungated first */
.suspend_noirq = ingenic_ost_suspend,
.resume_noirq = ingenic_ost_resume,
@@ -181,9 +181,7 @@ static const struct of_device_id ingenic_ost_of_match[] = {
static struct platform_driver ingenic_ost_driver = {
.driver = {
.name = "ingenic-ost",
-#ifdef CONFIG_PM_SUSPEND
- .pm = &ingenic_ost_pm_ops,
-#endif
+ .pm = pm_sleep_ptr(&ingenic_ost_pm_ops),
.of_match_table = ingenic_ost_of_match,
},
};
--
2.17.1


2022-11-23 18:28:13

by Paul Cercueil

[permalink] [raw]
Subject: Re: [PATCH v2] clocksource: ingenic-ost: define pm functions properly in platform_driver struct

Hi Lukas,

Le mer. 23 nov. 2022 ? 09:31:59 +0100, Lukas Bulwahn
<[email protected]> a ?crit :
> Commit ca7b72b5a5f2 ("clocksource: Add driver for the Ingenic JZ47xx
> OST")
> adds the struct platform_driver ingenic_ost_driver, with the
> definition of
> pm functions under the non-existing config PM_SUSPEND, which means the
> intended pm functions were never actually included in any build.
>
> As the only callbacks are .suspend_noirq and .resume_noirq, we can
> assume
> that it is intended to be CONFIG_PM_SLEEP.
>
> Since commit 1a3c7bb08826 ("PM: core: Add new *_PM_OPS macros,
> deprecate
> old ones"), the default pattern for platform_driver definitions
> conditional for CONFIG_PM_SLEEP is to use pm_sleep_ptr().
>
> As __maybe_unused annotations on the dev_pm_ops structure and its
> callbacks
> are not needed anymore, remove these as well.
>
> Suggested-by: Paul Cercueil <[email protected]>
> Signed-off-by: Lukas Bulwahn <[email protected]>

Reviewed-by: Paul Cercueil <[email protected]>

Cheers,
-Paul

> ---
> v1:
> https://lore.kernel.org/all/[email protected]/
>
> v1 -> v2:
> - incorporated Paul Cercueil's feedback:
> - changed to pm_sleep_ptr
> - dropped Fixes: tag
>
> drivers/clocksource/ingenic-ost.c | 10 ++++------
> 1 file changed, 4 insertions(+), 6 deletions(-)
>
> diff --git a/drivers/clocksource/ingenic-ost.c
> b/drivers/clocksource/ingenic-ost.c
> index 06d25754e606..9f7c280a1336 100644
> --- a/drivers/clocksource/ingenic-ost.c
> +++ b/drivers/clocksource/ingenic-ost.c
> @@ -141,7 +141,7 @@ static int __init ingenic_ost_probe(struct
> platform_device *pdev)
> return 0;
> }
>
> -static int __maybe_unused ingenic_ost_suspend(struct device *dev)
> +static int ingenic_ost_suspend(struct device *dev)
> {
> struct ingenic_ost *ost = dev_get_drvdata(dev);
>
> @@ -150,14 +150,14 @@ static int __maybe_unused
> ingenic_ost_suspend(struct device *dev)
> return 0;
> }
>
> -static int __maybe_unused ingenic_ost_resume(struct device *dev)
> +static int ingenic_ost_resume(struct device *dev)
> {
> struct ingenic_ost *ost = dev_get_drvdata(dev);
>
> return clk_enable(ost->clk);
> }
>
> -static const struct dev_pm_ops __maybe_unused ingenic_ost_pm_ops = {
> +static const struct dev_pm_ops ingenic_ost_pm_ops = {
> /* _noirq: We want the OST clock to be gated last / ungated first */
> .suspend_noirq = ingenic_ost_suspend,
> .resume_noirq = ingenic_ost_resume,
> @@ -181,9 +181,7 @@ static const struct of_device_id
> ingenic_ost_of_match[] = {
> static struct platform_driver ingenic_ost_driver = {
> .driver = {
> .name = "ingenic-ost",
> -#ifdef CONFIG_PM_SUSPEND
> - .pm = &ingenic_ost_pm_ops,
> -#endif
> + .pm = pm_sleep_ptr(&ingenic_ost_pm_ops),
> .of_match_table = ingenic_ost_of_match,
> },
> };
> --
> 2.17.1
>


Subject: [tip: timers/core] clocksource/drivers/ingenic-ost: Define pm functions properly in platform_driver struct

The following commit has been merged into the timers/core branch of tip:

Commit-ID: 035629547999d0e9095886f248c2580dc56f36c6
Gitweb: https://git.kernel.org/tip/035629547999d0e9095886f248c2580dc56f36c6
Author: Lukas Bulwahn <[email protected]>
AuthorDate: Wed, 23 Nov 2022 09:31:59 +01:00
Committer: Thomas Gleixner <[email protected]>
CommitterDate: Thu, 01 Dec 2022 11:56:36 +01:00

clocksource/drivers/ingenic-ost: Define pm functions properly in platform_driver struct

Commit ca7b72b5a5f2 ("clocksource: Add driver for the Ingenic JZ47xx OST")
adds the struct platform_driver ingenic_ost_driver, with the definition of
pm functions under the non-existing config PM_SUSPEND, which means the
intended pm functions were never actually included in any build.

As the only callbacks are .suspend_noirq and .resume_noirq, we can assume
that it is intended to be CONFIG_PM_SLEEP.

Since commit 1a3c7bb08826 ("PM: core: Add new *_PM_OPS macros, deprecate
old ones"), the default pattern for platform_driver definitions
conditional for CONFIG_PM_SLEEP is to use pm_sleep_ptr().

As __maybe_unused annotations on the dev_pm_ops structure and its callbacks
are not needed anymore, remove these as well.

Suggested-by: Paul Cercueil <[email protected]>
Signed-off-by: Lukas Bulwahn <[email protected]>
Signed-off-by: Thomas Gleixner <[email protected]>
Reviewed-by: Paul Cercueil <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
---
drivers/clocksource/ingenic-ost.c | 10 ++++------
1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/drivers/clocksource/ingenic-ost.c b/drivers/clocksource/ingenic-ost.c
index 06d2575..9f7c280 100644
--- a/drivers/clocksource/ingenic-ost.c
+++ b/drivers/clocksource/ingenic-ost.c
@@ -141,7 +141,7 @@ static int __init ingenic_ost_probe(struct platform_device *pdev)
return 0;
}

-static int __maybe_unused ingenic_ost_suspend(struct device *dev)
+static int ingenic_ost_suspend(struct device *dev)
{
struct ingenic_ost *ost = dev_get_drvdata(dev);

@@ -150,14 +150,14 @@ static int __maybe_unused ingenic_ost_suspend(struct device *dev)
return 0;
}

-static int __maybe_unused ingenic_ost_resume(struct device *dev)
+static int ingenic_ost_resume(struct device *dev)
{
struct ingenic_ost *ost = dev_get_drvdata(dev);

return clk_enable(ost->clk);
}

-static const struct dev_pm_ops __maybe_unused ingenic_ost_pm_ops = {
+static const struct dev_pm_ops ingenic_ost_pm_ops = {
/* _noirq: We want the OST clock to be gated last / ungated first */
.suspend_noirq = ingenic_ost_suspend,
.resume_noirq = ingenic_ost_resume,
@@ -181,9 +181,7 @@ static const struct of_device_id ingenic_ost_of_match[] = {
static struct platform_driver ingenic_ost_driver = {
.driver = {
.name = "ingenic-ost",
-#ifdef CONFIG_PM_SUSPEND
- .pm = &ingenic_ost_pm_ops,
-#endif
+ .pm = pm_sleep_ptr(&ingenic_ost_pm_ops),
.of_match_table = ingenic_ost_of_match,
},
};

2022-12-01 11:21:55

by Thomas Gleixner

[permalink] [raw]
Subject: Re: [PATCH v2] clocksource: ingenic-ost: define pm functions properly in platform_driver struct

Lukas!

On Wed, Nov 23 2022 at 09:31, Lukas Bulwahn wrote:
> Commit ca7b72b5a5f2 ("clocksource: Add driver for the Ingenic JZ47xx OST")
> adds the struct platform_driver ingenic_ost_driver, with the definition of
> pm functions under the non-existing config PM_SUSPEND, which means the
> intended pm functions were never actually included in any build.
>
> As the only callbacks are .suspend_noirq and .resume_noirq, we can assume
> that it is intended to be CONFIG_PM_SLEEP.
>
> Since commit 1a3c7bb08826 ("PM: core: Add new *_PM_OPS macros, deprecate
> old ones"), the default pattern for platform_driver definitions
> conditional for CONFIG_PM_SLEEP is to use pm_sleep_ptr().
>
> As __maybe_unused annotations on the dev_pm_ops structure and its callbacks
> are not needed anymore, remove these as well.
>
> Suggested-by: Paul Cercueil <[email protected]>
> Signed-off-by: Lukas Bulwahn <[email protected]>

just a minor nit. The subsystem prefix should be:

clocksource/drivers/ingenic-ost:

git log --one-line $FILE is usually a good hint for the subsystem
specific prefix choice.

Fixed it up while applying.

Thanks,

tglx