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path: root/packages/linux/linux/acern30/s3c2410mci-pm.patch
blob: 33a88713cb51d662286587975908d6bd92f9223e (plain)
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Index: linux-2.6.14/drivers/mmc/s3c2410mci.c
===================================================================
--- linux-2.6.14.orig/drivers/mmc/s3c2410mci.c
+++ linux-2.6.14/drivers/mmc/s3c2410mci.c
@@ -614,7 +614,8 @@ static int s3c2410sdi_probe(struct devic
 		goto probe_iounmap;
 	}
 
-	s3c2410_gpio_cfgpin(S3C2410_GPF5, S3C2410_GPF5_EINT5);
+	// This should be parametrised
+	// s3c2410_gpio_cfgpin(S3C2410_GPF5, S3C2410_GPF5_EINT5);
 	set_irq_type(host->irq_cd, IRQT_BOTHEDGE);
 
 	if(request_irq(host->irq_cd, s3c2410sdi_irq_cd, 0, DRIVER_NAME, host)) {
@@ -732,12 +733,57 @@ static int s3c2410sdi_remove(struct devi
 	return 0;
 }
 
+#ifdef CONFIG_PM
+static int s3c2410mci_suspend(struct device *dev, pm_message_t state)
+{
+	struct mmc_host *mmc = dev_get_drvdata(dev);
+	int ret = 0;
+
+	if (mmc) {
+		struct s3c2410sdi_host 	*host = mmc_priv(mmc);
+
+		ret = mmc_suspend_host(mmc, state);
+
+		clk_disable(host->clk);
+
+		disable_irq(host->irq_cd);
+		disable_irq(host->irq);
+	}
+
+	return ret;
+}
+
+static int s3c2410mci_resume(struct device *dev)
+{
+	struct mmc_host *mmc = dev_get_drvdata(dev);
+	int ret = 0;
+
+	if (mmc) {
+		struct s3c2410sdi_host 	*host = mmc_priv(mmc);
+
+		enable_irq(host->irq_cd);
+		enable_irq(host->irq);
+
+		clk_enable(host->clk);
+
+		ret = mmc_resume_host(mmc);
+	}
+
+	return ret;
+}
+#else
+#define s3c2410mci_suspend	NULL
+#define s3c2410mci_resume	NULL
+#endif
+
 static struct device_driver s3c2410sdi_driver =
 {
         .name           = "s3c2410-sdi",
         .bus            = &platform_bus_type,
         .probe          = s3c2410sdi_probe,
         .remove         = s3c2410sdi_remove,
+	.suspend	= s3c2410mci_suspend,
+	.resume		= s3c2410mci_resume,
 };
 
 static int __init s3c2410sdi_init(void)
Index: linux-2.6.14/drivers/mmc/mmc.c
===================================================================
--- linux-2.6.14.orig/drivers/mmc/mmc.c
+++ linux-2.6.14/drivers/mmc/mmc.c
@@ -1263,6 +1263,7 @@ EXPORT_SYMBOL(mmc_suspend_host);
  */
 int mmc_resume_host(struct mmc_host *host)
 {
+	mmc_power_up(host);
 	mmc_detect_change(host, 0);
 
 	return 0;