diff options
| author | Chris Ball <cjb@laptop.org> | 2012-02-06 05:43:59 (GMT) |
|---|---|---|
| committer | Chris Ball <cjb@laptop.org> | 2012-03-25 23:33:44 (GMT) |
| commit | a1b13b4e18d62ea60aad9554f35d79c51328b8b6 (patch) | |
| tree | 78e00a547bc10c3849cd74b44954a239b0f6890c | |
| parent | a39e5746e429b1dae1a71b3ddb05fd82916447c9 (diff) | |
| download | linux-a1b13b4e18d62ea60aad9554f35d79c51328b8b6.tar.xz | |
mmc: sdhci: Add platform suspend/resume hooks.
Some platforms require saving/restoring registers across suspend/resume;
this hook allows them to do that inside their driver.
Signed-off-by: Chris Ball <cjb@laptop.org>
| -rw-r--r-- | drivers/mmc/host/sdhci.c | 6 | ||||
| -rw-r--r-- | drivers/mmc/host/sdhci.h | 2 |
2 files changed, 8 insertions, 0 deletions
diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c index 8d66706..1f5888b 100644 --- a/drivers/mmc/host/sdhci.c +++ b/drivers/mmc/host/sdhci.c @@ -2379,6 +2379,9 @@ int sdhci_suspend_host(struct sdhci_host *host) int ret; bool has_tuning_timer; + if (host->ops->platform_suspend) + host->ops->platform_suspend(host); + sdhci_disable_card_detection(host); /* Disable tuning since we are suspending */ @@ -2429,6 +2432,9 @@ int sdhci_resume_host(struct sdhci_host *host) ret = mmc_resume_host(host->mmc); sdhci_enable_card_detection(host); + if (host->ops->platform_resume) + host->ops->platform_resume(host); + /* Set the re-tuning expiration flag */ if ((host->version >= SDHCI_SPEC_300) && host->tuning_count && (host->tuning_mode == SDHCI_TUNING_MODE_1)) diff --git a/drivers/mmc/host/sdhci.h b/drivers/mmc/host/sdhci.h index ad265b9..f761f23 100644 --- a/drivers/mmc/host/sdhci.h +++ b/drivers/mmc/host/sdhci.h @@ -275,6 +275,8 @@ struct sdhci_ops { void (*platform_reset_exit)(struct sdhci_host *host, u8 mask); int (*set_uhs_signaling)(struct sdhci_host *host, unsigned int uhs); void (*hw_reset)(struct sdhci_host *host); + void (*platform_suspend)(struct sdhci_host *host); + void (*platform_resume)(struct sdhci_host *host); }; #ifdef CONFIG_MMC_SDHCI_IO_ACCESSORS |