rk: restore file mode

[firefly-linux-kernel-4.4.55.git] / drivers / mmc / core / bus.c

diff --git a/drivers/mmc/core/bus.c b/drivers/mmc/core/bus.c
index e07d6c90caecba54af3406dcba5f591078452079..0669ed0d73b425d25053a9f5cb8fbdaa4e548ed4 100644 (file)
--- a/drivers/mmc/core/bus.c
+++ b/drivers/mmc/core/bus.c
@@ -11,9 +11,11 @@
  *  MMC card bus driver model
  */
 
+#include <linux/export.h>
 #include <linux/device.h>
 #include <linux/err.h>
 #include <linux/slab.h>
+#include <linux/stat.h>
 #include <linux/pm_runtime.h>
 
 #include <linux/mmc/card.h>
@@ -120,53 +122,102 @@ static int mmc_bus_remove(struct device *dev)
        return 0;
 }
 
-static int mmc_bus_pm_suspend(struct device *dev)
+static void mmc_bus_shutdown(struct device *dev)
 {
        struct mmc_driver *drv = to_mmc_driver(dev->driver);
        struct mmc_card *card = mmc_dev_to_card(dev);
+       struct mmc_host *host = card->host;
        int ret = 0;
-       pm_message_t state = { PM_EVENT_SUSPEND };
 
-       if (dev->driver && drv->suspend)
-               ret = drv->suspend(card, state);
+       if (dev->driver && drv->shutdown)
+           drv->shutdown(card);
+
+    if (host->bus_ops->shutdown) {
+        ret = host->bus_ops->shutdown(host);
+
+        if (ret)
+            pr_warn("%s: error %d during shutdown\n",mmc_hostname(host), ret);
+       }
+
+}
+
+#ifdef CONFIG_PM_SLEEP
+static int mmc_bus_suspend(struct device *dev)
+{
+       struct mmc_driver *drv = to_mmc_driver(dev->driver);
+       struct mmc_card *card = mmc_dev_to_card(dev);
+       struct mmc_host *host = card->host;
+       int ret = 0;
+
+       if (dev->driver && drv->suspend) {
+               ret = drv->suspend(card);
+               if (ret)
+                       return ret;
+       }
+       
+    if(host->bus_ops->suspend)
+           ret = host->bus_ops->suspend(host);
        return ret;
 }
 
-static int mmc_bus_pm_resume(struct device *dev)
+static int mmc_bus_resume(struct device *dev)
 {
        struct mmc_driver *drv = to_mmc_driver(dev->driver);
        struct mmc_card *card = mmc_dev_to_card(dev);
+       struct mmc_host *host = card->host;
        int ret = 0;
 
+    if(host->bus_ops->resume){
+           ret = host->bus_ops->resume(host);
+           if (ret)
+                   pr_warn("%s: error %d during resume (card was removed?)\n",
+                           mmc_hostname(host), ret);
+    }
+    
        if (dev->driver && drv->resume)
                ret = drv->resume(card);
+
        return ret;
 }
+#endif
 
 #ifdef CONFIG_PM_RUNTIME
+
 static int mmc_runtime_suspend(struct device *dev)
 {
        struct mmc_card *card = mmc_dev_to_card(dev);
+       struct mmc_host *host = card->host;
+       int ret = 0;
 
-       return mmc_power_save_host(card->host);
+       if (host->bus_ops->runtime_suspend)
+               ret = host->bus_ops->runtime_suspend(host);
+
+       return ret;
 }
 
 static int mmc_runtime_resume(struct device *dev)
 {
        struct mmc_card *card = mmc_dev_to_card(dev);
+       struct mmc_host *host = card->host;
+       int ret = 0;
 
-       return mmc_power_restore_host(card->host);
+       if (host->bus_ops->runtime_resume)
+               ret = host->bus_ops->runtime_resume(host);
+
+       return ret;
 }
 
 static int mmc_runtime_idle(struct device *dev)
 {
-       return pm_runtime_suspend(dev);
+       return 0;
 }
-#endif /* CONFIG_PM_RUNTIME */
+
+#endif /* !CONFIG_PM_RUNTIME */
 
 static const struct dev_pm_ops mmc_bus_pm_ops = {
-       SET_SYSTEM_SLEEP_PM_OPS(mmc_bus_pm_suspend, mmc_bus_pm_resume)
-       SET_RUNTIME_PM_OPS(mmc_runtime_suspend, mmc_runtime_resume, mmc_runtime_idle)
+       SET_RUNTIME_PM_OPS(mmc_runtime_suspend, mmc_runtime_resume,
+                       mmc_runtime_idle)
+       SET_SYSTEM_SLEEP_PM_OPS(mmc_bus_suspend, mmc_bus_resume)
 };
 
 static struct bus_type mmc_bus_type = {
@@ -176,6 +227,7 @@ static struct bus_type mmc_bus_type = {
        .uevent         = mmc_bus_uevent,
        .probe          = mmc_bus_probe,
        .remove         = mmc_bus_remove,
+       .shutdown       = mmc_bus_shutdown,
        .pm             = &mmc_bus_pm_ops,
 };
 
@@ -219,8 +271,7 @@ static void mmc_release_card(struct device *dev)
 
        sdio_free_common_cis(card);
 
-       if (card->info)
-               kfree(card->info);
+       kfree(card->info);
 
        kfree(card);
 }
@@ -255,6 +306,15 @@ int mmc_add_card(struct mmc_card *card)
 {
        int ret;
        const char *type;
+       const char *uhs_bus_speed_mode = "";
+       static const char *const uhs_speeds[] = {
+               [UHS_SDR12_BUS_SPEED] = "SDR12 ",
+               [UHS_SDR25_BUS_SPEED] = "SDR25 ",
+               [UHS_SDR50_BUS_SPEED] = "SDR50 ",
+               [UHS_SDR104_BUS_SPEED] = "SDR104 ",
+               [UHS_DDR50_BUS_SPEED] = "DDR50 ",
+       };
+
 
        dev_set_name(&card->dev, "%s:%04x", mmc_hostname(card->host), card->rca);
 
@@ -284,24 +344,30 @@ int mmc_add_card(struct mmc_card *card)
                break;
        }
 
+       if (mmc_card_uhs(card) &&
+               (card->sd_bus_speed < ARRAY_SIZE(uhs_speeds)))
+               uhs_bus_speed_mode = uhs_speeds[card->sd_bus_speed];
+
        if (mmc_host_is_spi(card->host)) {
-               printk(KERN_INFO "%s: new %s%s%s card on SPI\n",
+               pr_info("%s: new %s%s%s card on SPI\n",
                        mmc_hostname(card->host),
                        mmc_card_highspeed(card) ? "high speed " : "",
                        mmc_card_ddr_mode(card) ? "DDR " : "",
                        type);
        } else {
-               printk(KERN_INFO "%s: new %s%s%s card at address %04x\n",
+               pr_info("%s: new %s%s%s%s%s card at address %04x\n",
                        mmc_hostname(card->host),
-                       mmc_sd_card_uhs(card) ? "ultra high speed " :
+                       mmc_card_uhs(card) ? "ultra high speed " :
                        (mmc_card_highspeed(card) ? "high speed " : ""),
+                       (mmc_card_hs200(card) ? "HS200 " : ""),
                        mmc_card_ddr_mode(card) ? "DDR " : "",
-                       type, card->rca);
+                       uhs_bus_speed_mode, type, card->rca);
        }
 
 #ifdef CONFIG_DEBUG_FS
        mmc_add_card_debugfs(card);
 #endif
+       mmc_init_context_info(card->host);
 
        ret = device_add(&card->dev);
        if (ret)
@@ -324,10 +390,10 @@ void mmc_remove_card(struct mmc_card *card)
 
        if (mmc_card_present(card)) {
                if (mmc_host_is_spi(card->host)) {
-                       printk(KERN_INFO "%s: SPI card removed\n",
+                       pr_info("%s: SPI card removed\n",
                                mmc_hostname(card->host));
                } else {
-                       printk(KERN_INFO "%s: card %04x removed\n",
+                       pr_info("%s: card %04x removed\n",
                                mmc_hostname(card->host), card->rca);
                }
                device_del(&card->dev);