diff mbox series

mmc: esdhc-imx: convert to modern PM_OPS

Message ID 20250410140921.849213-1-arnd@kernel.org
State New
Headers show
Series mmc: esdhc-imx: convert to modern PM_OPS | expand

Commit Message

Arnd Bergmann April 10, 2025, 2:09 p.m. UTC
From: Arnd Bergmann <arnd@arndb.de>

Two newly added functions are unused in configurations without
power management support:

drivers/mmc/host/sdhci-esdhc-imx.c:1586:13: error: unused function 'sdhc_esdhc_tuning_save' [-Werror,-Wunused-function]
 1586 | static void sdhc_esdhc_tuning_save(struct sdhci_host *host)
      |             ^~~~~~~~~~~~~~~~~~~~~~
drivers/mmc/host/sdhci-esdhc-imx.c:1608:13: error: unused function 'sdhc_esdhc_tuning_restore' [-Werror,-Wunused-function]
 1608 | static void sdhc_esdhc_tuning_restore(struct sdhci_host *host)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~

Remove the #ifdef checks and instead use the better macros that
silently drop the unused functions when PM is disabled.

Fixes: 3d1eea493894 ("mmc: sdhci-esdhc-imx: Save tuning value when card stays powered in suspend")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
 drivers/mmc/host/sdhci-esdhc-imx.c | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

Comments

Adrian Hunter April 11, 2025, 8:50 a.m. UTC | #1
On 11/04/25 08:45, Arnd Bergmann wrote:
> On Fri, Apr 11, 2025, at 04:45, Bough Chen wrote:
>>> From: Arnd Bergmann <arnd@kernel.org>
>>> drivers/mmc/host/sdhci-esdhc-imx.c:1586:13: error: unused function
>>> 'sdhc_esdhc_tuning_save' [-Werror,-Wunused-function]
>>>  1586 | static void sdhc_esdhc_tuning_save(struct sdhci_host *host)
>>>       |             ^~~~~~~~~~~~~~~~~~~~~~
>>> drivers/mmc/host/sdhci-esdhc-imx.c:1608:13: error: unused function
>>> 'sdhc_esdhc_tuning_restore' [-Werror,-Wunused-function]
>>>  1608 | static void sdhc_esdhc_tuning_restore(struct sdhci_host *host)
>>>       |             ^~~~~~~~~~~~~~~~~~~~~~~~~
>>>
>>> Remove the #ifdef checks and instead use the better macros that silently drop
>>> the unused functions when PM is disabled.
>>
>> Thanks for this catching.
>>
>> How about add __maybe_unused to define this tuning_save/retore function?
> 
> That sounds counterproductive.
> 
> The new macros were introduced to allow removing all the pointless
> __maybe_unused annotations, I see no reason to stick with the
> legacy helpers here.
> 
> I did make a small mistake and ran into another warning later,
> but this fixup should address that:
> 
> --- a/drivers/mmc/host/sdhci-esdhc-imx.c
> +++ b/drivers/mmc/host/sdhci-esdhc-imx.c
> @@ -2112,7 +2112,7 @@ static struct platform_driver sdhci_esdhc_imx_driver = {
>                 .name   = "sdhci-esdhc-imx",
>                 .probe_type = PROBE_PREFER_ASYNCHRONOUS,
>                 .of_match_table = imx_esdhc_dt_ids,
> -               .pm     = &sdhci_esdhc_pmops,
> +               .pm     = pm_ptr(&sdhci_esdhc_pmops),
>         },
>         .probe          = sdhci_esdhc_imx_probe,
>         .remove         = sdhci_esdhc_imx_remove,
> 

Can someone provide a Tested-by?
diff mbox series

Patch

diff --git a/drivers/mmc/host/sdhci-esdhc-imx.c b/drivers/mmc/host/sdhci-esdhc-imx.c
index 7e8addaed697..8742622da55a 100644
--- a/drivers/mmc/host/sdhci-esdhc-imx.c
+++ b/drivers/mmc/host/sdhci-esdhc-imx.c
@@ -1942,7 +1942,6 @@  static void sdhci_esdhc_imx_remove(struct platform_device *pdev)
 	sdhci_pltfm_free(pdev);
 }
 
-#ifdef CONFIG_PM_SLEEP
 static int sdhci_esdhc_suspend(struct device *dev)
 {
 	struct sdhci_host *host = dev_get_drvdata(dev);
@@ -2021,9 +2020,7 @@  static int sdhci_esdhc_resume(struct device *dev)
 
 	return ret;
 }
-#endif
 
-#ifdef CONFIG_PM
 static int sdhci_esdhc_runtime_suspend(struct device *dev)
 {
 	struct sdhci_host *host = dev_get_drvdata(dev);
@@ -2103,11 +2100,10 @@  static int sdhci_esdhc_runtime_resume(struct device *dev)
 		cpu_latency_qos_remove_request(&imx_data->pm_qos_req);
 	return err;
 }
-#endif
 
 static const struct dev_pm_ops sdhci_esdhc_pmops = {
-	SET_SYSTEM_SLEEP_PM_OPS(sdhci_esdhc_suspend, sdhci_esdhc_resume)
-	SET_RUNTIME_PM_OPS(sdhci_esdhc_runtime_suspend,
+	SYSTEM_SLEEP_PM_OPS(sdhci_esdhc_suspend, sdhci_esdhc_resume)
+	RUNTIME_PM_OPS(sdhci_esdhc_runtime_suspend,
 				sdhci_esdhc_runtime_resume, NULL)
 };