diff options
Diffstat (limited to 'drivers/mmc/host/sdhci-of-esdhc.c')
| -rw-r--r-- | drivers/mmc/host/sdhci-of-esdhc.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/drivers/mmc/host/sdhci-of-esdhc.c b/drivers/mmc/host/sdhci-of-esdhc.c index 5d876ff..2ef52f4 100644 --- a/drivers/mmc/host/sdhci-of-esdhc.c +++ b/drivers/mmc/host/sdhci-of-esdhc.c @@ -114,6 +114,20 @@ static unsigned int esdhc_of_get_min_clock(struct sdhci_host *host) return pltfm_host->clock / 256 / 16; } +#ifdef CONFIG_PM +static u32 esdhc_proctl; +static void esdhc_of_suspend(struct sdhci_host *host) +{ + esdhc_proctl = sdhci_be32bs_readl(host, SDHCI_HOST_CONTROL); +} + +static void esdhc_of_resume(struct sdhci_host *host) +{ + esdhc_of_enable_dma(host); + sdhci_be32bs_writel(host, esdhc_proctl, SDHCI_HOST_CONTROL); +} +#endif + static struct sdhci_ops sdhci_esdhc_ops = { .read_l = sdhci_be32bs_readl, .read_w = esdhc_readw, @@ -125,6 +139,10 @@ static struct sdhci_ops sdhci_esdhc_ops = { .enable_dma = esdhc_of_enable_dma, .get_max_clock = esdhc_of_get_max_clock, .get_min_clock = esdhc_of_get_min_clock, +#ifdef CONFIG_PM + .platform_suspend = esdhc_of_suspend, + .platform_resume = esdhc_of_resume, +#endif }; static struct sdhci_pltfm_data sdhci_esdhc_pdata = { |
