1 files changed, 25 insertions, 40 deletions

diff --git a/drivers/mmc/core/host.c b/drivers/mmc/core/host.c
index 270d58a4c43..8be0df758e6 100644
--- a/drivers/mmc/core/host.c
+++ b/drivers/mmc/core/host.c
@@ -29,13 +29,20 @@
 
 #include "core.h"
 #include "host.h"
+#include "slot-gpio.h"
+#include "pwrseq.h"
 
 #define cls_dev_to_mmc_host(d)	container_of(d, struct mmc_host, class_dev)
 
+static DEFINE_IDR(mmc_host_idr);
+static DEFINE_SPINLOCK(mmc_host_lock);
+
 static void mmc_host_classdev_release(struct device *dev)
 {
 	struct mmc_host *host = cls_dev_to_mmc_host(dev);
-	mutex_destroy(&host->slot.lock);
+	spin_lock(&mmc_host_lock);
+	idr_remove(&mmc_host_idr, host->index);
+	spin_unlock(&mmc_host_lock);
 	kfree(host);
 }
 
@@ -54,9 +61,6 @@ void mmc_unregister_host_class(void)
 	class_unregister(&mmc_host_class);
 }
 
-static DEFINE_IDR(mmc_host_idr);
-static DEFINE_SPINLOCK(mmc_host_lock);
-
 #ifdef CONFIG_MMC_CLKGATE
 static ssize_t clkgate_delay_show(struct device *dev,
 		struct device_attribute *attr, char *buf)
@@ -367,16 +371,10 @@ int mmc_of_parse(struct mmc_host *host)
 
 		ret = mmc_gpiod_request_cd(host, "cd", 0, true,
 					   0, &cd_gpio_invert);
-		if (ret) {
-			if (ret == -EPROBE_DEFER)
-				return ret;
-			if (ret != -ENOENT) {
-				dev_err(host->parent,
-					"Failed to request CD GPIO: %d\n",
-					ret);
-			}
-		} else
+		if (!ret)
 			dev_info(host->parent, "Got CD GPIO\n");
+		else if (ret != -ENOENT)
+			return ret;
 
 		/*
 		 * There are two ways to flag that the CD line is inverted:
@@ -397,16 +395,10 @@ int mmc_of_parse(struct mmc_host *host)
 	ro_cap_invert = of_property_read_bool(np, "wp-inverted");
 
 	ret = mmc_gpiod_request_ro(host, "wp", 0, false, 0, &ro_gpio_invert);
-	if (ret) {
-		if (ret == -EPROBE_DEFER)
-			goto out;
-		if (ret != -ENOENT) {
-			dev_err(host->parent,
-				"Failed to request WP GPIO: %d\n",
-				ret);
-		}
-	} else
+	if (!ret)
 		dev_info(host->parent, "Got WP GPIO\n");
+	else if (ret != -ENOENT)
+		return ret;
 
 	/* See the comment on CD inversion above */
 	if (ro_cap_invert ^ ro_gpio_invert)
@@ -457,11 +449,7 @@ int mmc_of_parse(struct mmc_host *host)
 		host->dsr_req = 0;
 	}
 
-	return 0;
-
-out:
-	mmc_gpio_free_cd(host);
-	return ret;
+	return mmc_pwrseq_alloc(host);
 }
 
 EXPORT_SYMBOL(mmc_of_parse);
@@ -491,8 +479,10 @@ struct mmc_host *mmc_alloc_host(int extra, struct device *dev)
 		host->index = err;
 	spin_unlock(&mmc_host_lock);
 	idr_preload_end();
-	if (err < 0)
-		goto free;
+	if (err < 0) {
+		kfree(host);
+		return NULL;
+	}
 
 	dev_set_name(&host->class_dev, "mmc%d", host->index);
 
@@ -501,10 +491,12 @@ struct mmc_host *mmc_alloc_host(int extra, struct device *dev)
 	host->class_dev.class = &mmc_host_class;
 	device_initialize(&host->class_dev);
 
-	mmc_host_clk_init(host);
+	if (mmc_gpio_alloc(host)) {
+		put_device(&host->class_dev);
+		return NULL;
+	}
 
-	mutex_init(&host->slot.lock);
-	host->slot.cd_irq = -EINVAL;
+	mmc_host_clk_init(host);
 
 	spin_lock_init(&host->lock);
 	init_waitqueue_head(&host->wq);
@@ -525,10 +517,6 @@ struct mmc_host *mmc_alloc_host(int extra, struct device *dev)
 	host->max_blk_count = PAGE_CACHE_SIZE / 512;
 
 	return host;
-
-free:
-	kfree(host);
-	return NULL;
 }
 
 EXPORT_SYMBOL(mmc_alloc_host);
@@ -601,10 +589,7 @@ EXPORT_SYMBOL(mmc_remove_host);
  */
 void mmc_free_host(struct mmc_host *host)
 {
-	spin_lock(&mmc_host_lock);
-	idr_remove(&mmc_host_idr, host->index);
-	spin_unlock(&mmc_host_lock);
-
+	mmc_pwrseq_free(host);
 	put_device(&host->class_dev);
 }