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path: root/drivers/mmc/host/sdhci-of-esdhc.c
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Diffstat (limited to 'drivers/mmc/host/sdhci-of-esdhc.c')
-rw-r--r--drivers/mmc/host/sdhci-of-esdhc.c70
1 files changed, 43 insertions, 27 deletions
diff --git a/drivers/mmc/host/sdhci-of-esdhc.c b/drivers/mmc/host/sdhci-of-esdhc.c
index 0b249970b11..8be4dcfb49a 100644
--- a/drivers/mmc/host/sdhci-of-esdhc.c
+++ b/drivers/mmc/host/sdhci-of-esdhc.c
@@ -199,13 +199,14 @@ static unsigned int esdhc_of_get_min_clock(struct sdhci_host *host)
static void esdhc_of_set_clock(struct sdhci_host *host, unsigned int clock)
{
-
int pre_div = 2;
int div = 1;
u32 temp;
+ host->mmc->actual_clock = 0;
+
if (clock == 0)
- goto out;
+ return;
/* Workaround to reduce the clock frequency for p1010 esdhc */
if (of_find_compatible_node(NULL, NULL, "fsl,p1010-esdhc")) {
@@ -238,24 +239,8 @@ static void esdhc_of_set_clock(struct sdhci_host *host, unsigned int clock)
| (pre_div << ESDHC_PREDIV_SHIFT));
sdhci_writel(host, temp, ESDHC_SYSTEM_CONTROL);
mdelay(1);
-out:
- host->clock = clock;
-}
-
-#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 void esdhc_of_platform_init(struct sdhci_host *host)
{
u32 vvn;
@@ -269,7 +254,7 @@ static void esdhc_of_platform_init(struct sdhci_host *host)
host->quirks &= ~SDHCI_QUIRK_NO_BUSY_IRQ;
}
-static int esdhc_pltfm_bus_width(struct sdhci_host *host, int width)
+static void esdhc_pltfm_set_bus_width(struct sdhci_host *host, int width)
{
u32 ctrl;
@@ -289,8 +274,6 @@ static int esdhc_pltfm_bus_width(struct sdhci_host *host, int width)
clrsetbits_be32(host->ioaddr + SDHCI_HOST_CONTROL,
ESDHC_CTRL_BUSWIDTH_MASK, ctrl);
-
- return 0;
}
static const struct sdhci_ops sdhci_esdhc_ops = {
@@ -305,13 +288,46 @@ static const struct sdhci_ops sdhci_esdhc_ops = {
.get_max_clock = esdhc_of_get_max_clock,
.get_min_clock = esdhc_of_get_min_clock,
.platform_init = esdhc_of_platform_init,
-#ifdef CONFIG_PM
- .platform_suspend = esdhc_of_suspend,
- .platform_resume = esdhc_of_resume,
-#endif
.adma_workaround = esdhci_of_adma_workaround,
- .platform_bus_width = esdhc_pltfm_bus_width,
+ .set_bus_width = esdhc_pltfm_set_bus_width,
+ .reset = sdhci_reset,
+ .set_uhs_signaling = sdhci_set_uhs_signaling,
+};
+
+#ifdef CONFIG_PM
+
+static u32 esdhc_proctl;
+static int esdhc_of_suspend(struct device *dev)
+{
+ struct sdhci_host *host = dev_get_drvdata(dev);
+
+ esdhc_proctl = sdhci_be32bs_readl(host, SDHCI_HOST_CONTROL);
+
+ return sdhci_suspend_host(host);
+}
+
+static int esdhc_of_resume(struct device *dev)
+{
+ struct sdhci_host *host = dev_get_drvdata(dev);
+ int ret = sdhci_resume_host(host);
+
+ if (ret == 0) {
+ /* Isn't this already done by sdhci_resume_host() ? --rmk */
+ esdhc_of_enable_dma(host);
+ sdhci_be32bs_writel(host, esdhc_proctl, SDHCI_HOST_CONTROL);
+ }
+
+ return ret;
+}
+
+static const struct dev_pm_ops esdhc_pmops = {
+ .suspend = esdhc_of_suspend,
+ .resume = esdhc_of_resume,
};
+#define ESDHC_PMOPS (&esdhc_pmops)
+#else
+#define ESDHC_PMOPS NULL
+#endif
static const struct sdhci_pltfm_data sdhci_esdhc_pdata = {
/*
@@ -374,7 +390,7 @@ static struct platform_driver sdhci_esdhc_driver = {
.name = "sdhci-esdhc",
.owner = THIS_MODULE,
.of_match_table = sdhci_esdhc_of_match,
- .pm = SDHCI_PLTFM_PMOPS,
+ .pm = ESDHC_PMOPS,
},
.probe = sdhci_esdhc_probe,
.remove = sdhci_esdhc_remove,