[PATCH] [v2] mmc: esdhc-imx: convert to modern PM_OPS

From: Arnd Bergmann
Date: Fri Apr 11 2025 - 05:00:02 EST


From: Arnd Bergmann <arnd@xxxxxxxx>

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. This also
requires using pm_ptr() to eliminate both the runtime and pm_sleep
operations.

Fixes: 3d1eea493894 ("mmc: sdhci-esdhc-imx: Save tuning value when card stays powered in suspend")
Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
---
v2: add pm_ptr()
---
drivers/mmc/host/sdhci-esdhc-imx.c | 10 +++-------
1 file changed, 3 insertions(+), 7 deletions(-)

diff --git a/drivers/mmc/host/sdhci-esdhc-imx.c b/drivers/mmc/host/sdhci-esdhc-imx.c
index 7e8addaed697..3c2e50d0260d 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)
};

@@ -2116,7 +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,
--
2.39.5