1 files changed, 25 insertions, 30 deletions

diff --git a/drivers/mmc/host/atmel-mci.c b/drivers/mmc/host/atmel-mci.c
index bb585d94090..77250d4b197 100644
--- a/drivers/mmc/host/atmel-mci.c
+++ b/drivers/mmc/host/atmel-mci.c
@@ -17,6 +17,7 @@
 #include <linux/gpio.h>
 #include <linux/init.h>
 #include <linux/interrupt.h>
+#include <linux/io.h>
 #include <linux/ioport.h>
 #include <linux/module.h>
 #include <linux/of.h>
@@ -2195,7 +2196,8 @@ static int __init atmci_init_slot(struct atmel_mci *host,
 	/* Assume card is present initially */
 	set_bit(ATMCI_CARD_PRESENT, &slot->flags);
 	if (gpio_is_valid(slot->detect_pin)) {
-		if (gpio_request(slot->detect_pin, "mmc_detect")) {
+		if (devm_gpio_request(&host->pdev->dev, slot->detect_pin,
+				      "mmc_detect")) {
 			dev_dbg(&mmc->class_dev, "no detect pin available\n");
 			slot->detect_pin = -EBUSY;
 		} else if (gpio_get_value(slot->detect_pin) ^
@@ -2208,7 +2210,8 @@ static int __init atmci_init_slot(struct atmel_mci *host,
 		mmc->caps |= MMC_CAP_NEEDS_POLL;
 
 	if (gpio_is_valid(slot->wp_pin)) {
-		if (gpio_request(slot->wp_pin, "mmc_wp")) {
+		if (devm_gpio_request(&host->pdev->dev, slot->wp_pin,
+				      "mmc_wp")) {
 			dev_dbg(&mmc->class_dev, "no WP pin available\n");
 			slot->wp_pin = -EBUSY;
 		}
@@ -2232,7 +2235,6 @@ static int __init atmci_init_slot(struct atmel_mci *host,
 			dev_dbg(&mmc->class_dev,
 				"could not request IRQ %d for detect pin\n",
 				gpio_to_irq(slot->detect_pin));
-			gpio_free(slot->detect_pin);
 			slot->detect_pin = -EBUSY;
 		}
 	}
@@ -2242,7 +2244,7 @@ static int __init atmci_init_slot(struct atmel_mci *host,
 	return 0;
 }
 
-static void __exit atmci_cleanup_slot(struct atmel_mci_slot *slot,
+static void atmci_cleanup_slot(struct atmel_mci_slot *slot,
 		unsigned int id)
 {
 	/* Debugfs stuff is cleaned up by mmc core */
@@ -2257,10 +2259,7 @@ static void __exit atmci_cleanup_slot(struct atmel_mci_slot *slot,
 
 		free_irq(gpio_to_irq(pin), slot);
 		del_timer_sync(&slot->detect_timer);
-		gpio_free(pin);
 	}
-	if (gpio_is_valid(slot->wp_pin))
-		gpio_free(slot->wp_pin);
 
 	slot->host->slot[id] = NULL;
 	mmc_free_host(slot->mmc);
@@ -2344,6 +2343,7 @@ static void __init atmci_get_cap(struct atmel_mci *host)
 
 	/* keep only major version number */
 	switch (version & 0xf00) {
+	case 0x600:
 	case 0x500:
 		host->caps.has_odd_clk_div = 1;
 	case 0x400:
@@ -2377,7 +2377,7 @@ static int __init atmci_probe(struct platform_device *pdev)
 	struct resource			*regs;
 	unsigned int			nr_slots;
 	int				irq;
-	int				ret;
+	int				ret, i;
 
 	regs = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	if (!regs)
@@ -2395,7 +2395,7 @@ static int __init atmci_probe(struct platform_device *pdev)
 	if (irq < 0)
 		return irq;
 
-	host = kzalloc(sizeof(struct atmel_mci), GFP_KERNEL);
+	host = devm_kzalloc(&pdev->dev, sizeof(*host), GFP_KERNEL);
 	if (!host)
 		return -ENOMEM;
 
@@ -2403,20 +2403,18 @@ static int __init atmci_probe(struct platform_device *pdev)
 	spin_lock_init(&host->lock);
 	INIT_LIST_HEAD(&host->queue);
 
-	host->mck = clk_get(&pdev->dev, "mci_clk");
-	if (IS_ERR(host->mck)) {
-		ret = PTR_ERR(host->mck);
-		goto err_clk_get;
-	}
+	host->mck = devm_clk_get(&pdev->dev, "mci_clk");
+	if (IS_ERR(host->mck))
+		return PTR_ERR(host->mck);
 
-	ret = -ENOMEM;
-	host->regs = ioremap(regs->start, resource_size(regs));
+	host->regs = devm_ioremap(&pdev->dev, regs->start, resource_size(regs));
 	if (!host->regs)
-		goto err_ioremap;
+		return -ENOMEM;
 
 	ret = clk_prepare_enable(host->mck);
 	if (ret)
-		goto err_request_irq;
+		return ret;
+
 	atmci_writel(host, ATMCI_CR, ATMCI_CR_SWRST);
 	host->bus_hz = clk_get_rate(host->mck);
 	clk_disable_unprepare(host->mck);
@@ -2427,7 +2425,7 @@ static int __init atmci_probe(struct platform_device *pdev)
 
 	ret = request_irq(irq, atmci_interrupt, 0, dev_name(&pdev->dev), host);
 	if (ret)
-		goto err_request_irq;
+		return ret;
 
 	/* Get MCI capabilities and set operations according to it */
 	atmci_get_cap(host);
@@ -2485,7 +2483,7 @@ static int __init atmci_probe(struct platform_device *pdev)
 		if (!host->buffer) {
 			ret = -ENOMEM;
 			dev_err(&pdev->dev, "buffer allocation failed\n");
-			goto err_init_slot;
+			goto err_dma_alloc;
 		}
 	}
 
@@ -2495,16 +2493,16 @@ static int __init atmci_probe(struct platform_device *pdev)
 
 	return 0;
 
+err_dma_alloc:
+	for (i = 0; i < ATMCI_MAX_NR_SLOTS; i++) {
+		if (host->slot[i])
+			atmci_cleanup_slot(host->slot[i], i);
+	}
 err_init_slot:
+	del_timer_sync(&host->timer);
 	if (host->dma.chan)
 		dma_release_channel(host->dma.chan);
 	free_irq(irq, host);
-err_request_irq:
-	iounmap(host->regs);
-err_ioremap:
-	clk_put(host->mck);
-err_clk_get:
-	kfree(host);
 	return ret;
 }
 
@@ -2528,14 +2526,11 @@ static int __exit atmci_remove(struct platform_device *pdev)
 	atmci_readl(host, ATMCI_SR);
 	clk_disable_unprepare(host->mck);
 
+	del_timer_sync(&host->timer);
 	if (host->dma.chan)
 		dma_release_channel(host->dma.chan);
 
 	free_irq(platform_get_irq(pdev, 0), host);
-	iounmap(host->regs);
-
-	clk_put(host->mck);
-	kfree(host);
 
 	return 0;
 }