Re: [PATCH v4 4/4] mmc: sdhci-pltfm: export sdhci_pltfm_suspend/resume

From: Adrian Hunter
Date: Mon Aug 28 2017 - 06:43:12 EST


On 23/08/17 07:15, Masahiro Yamada wrote:
> This will be useful when drivers want to reuse either suspend or
> resume callback instead of whole of sdhci_pltfm_pmops.
>
> Signed-off-by: Masahiro Yamada <yamada.masahiro@xxxxxxxxxxxxx>

Acked-by: Adrian Hunter <adrian.hunter@xxxxxxxxx>

> ---
>
> Changes in v4: None
> Changes in v3: None
> Changes in v2: None
>
> drivers/mmc/host/sdhci-cadence.c | 20 +-------------------
> drivers/mmc/host/sdhci-pltfm.c | 6 ++++--
> drivers/mmc/host/sdhci-pltfm.h | 2 ++
> 3 files changed, 7 insertions(+), 21 deletions(-)
>
> diff --git a/drivers/mmc/host/sdhci-cadence.c b/drivers/mmc/host/sdhci-cadence.c
> index 3dca3b3c6436..56529c3d389a 100644
> --- a/drivers/mmc/host/sdhci-cadence.c
> +++ b/drivers/mmc/host/sdhci-cadence.c
> @@ -391,24 +391,6 @@ static int sdhci_cdns_probe(struct platform_device *pdev)
> }
>
> #ifdef CONFIG_PM_SLEEP
> -static int sdhci_cdns_suspend(struct device *dev)
> -{
> - struct sdhci_host *host = dev_get_drvdata(dev);
> - struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
> - int ret;
> -
> - if (host->tuning_mode != SDHCI_TUNING_MODE_3)
> - mmc_retune_needed(host->mmc);
> -
> - ret = sdhci_suspend_host(host);
> - if (ret)
> - return ret;
> -
> - clk_disable_unprepare(pltfm_host->clk);
> -
> - return 0;
> -}
> -
> static int sdhci_cdns_resume(struct device *dev)
> {
> struct sdhci_host *host = dev_get_drvdata(dev);
> @@ -438,7 +420,7 @@ static int sdhci_cdns_resume(struct device *dev)
> #endif
>
> static const struct dev_pm_ops sdhci_cdns_pm_ops = {
> - SET_SYSTEM_SLEEP_PM_OPS(sdhci_cdns_suspend, sdhci_cdns_resume)
> + SET_SYSTEM_SLEEP_PM_OPS(sdhci_pltfm_suspend, sdhci_cdns_resume)
> };
>
> static const struct of_device_id sdhci_cdns_match[] = {
> diff --git a/drivers/mmc/host/sdhci-pltfm.c b/drivers/mmc/host/sdhci-pltfm.c
> index 4c0135e184e9..02bea6159d79 100644
> --- a/drivers/mmc/host/sdhci-pltfm.c
> +++ b/drivers/mmc/host/sdhci-pltfm.c
> @@ -209,7 +209,7 @@ int sdhci_pltfm_unregister(struct platform_device *pdev)
> EXPORT_SYMBOL_GPL(sdhci_pltfm_unregister);
>
> #ifdef CONFIG_PM_SLEEP
> -static int sdhci_pltfm_suspend(struct device *dev)
> +int sdhci_pltfm_suspend(struct device *dev)
> {
> struct sdhci_host *host = dev_get_drvdata(dev);
> struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
> @@ -226,8 +226,9 @@ static int sdhci_pltfm_suspend(struct device *dev)
>
> return 0;
> }
> +EXPORT_SYMBOL_GPL(sdhci_pltfm_suspend);
>
> -static int sdhci_pltfm_resume(struct device *dev)
> +int sdhci_pltfm_resume(struct device *dev)
> {
> struct sdhci_host *host = dev_get_drvdata(dev);
> struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
> @@ -243,6 +244,7 @@ static int sdhci_pltfm_resume(struct device *dev)
>
> return ret;
> }
> +EXPORT_SYMBOL_GPL(sdhci_pltfm_resume);
> #endif
>
> const struct dev_pm_ops sdhci_pltfm_pmops = {
> diff --git a/drivers/mmc/host/sdhci-pltfm.h b/drivers/mmc/host/sdhci-pltfm.h
> index 957839d0fe37..1e91fb1c020e 100644
> --- a/drivers/mmc/host/sdhci-pltfm.h
> +++ b/drivers/mmc/host/sdhci-pltfm.h
> @@ -109,6 +109,8 @@ static inline void *sdhci_pltfm_priv(struct sdhci_pltfm_host *host)
> return host->private;
> }
>
> +int sdhci_pltfm_suspend(struct device *dev);
> +int sdhci_pltfm_resume(struct device *dev);
> extern const struct dev_pm_ops sdhci_pltfm_pmops;
>
> #endif /* _DRIVERS_MMC_SDHCI_PLTFM_H */
>