From 53a33bded0ee7989a94b10719f14e52ed2f9eb48 Mon Sep 17 00:00:00 2001
From: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Date: Mon, 19 Sep 2011 15:30:58 +0800
Subject: ARM: at91/mmc: use gpio_is_valid to check the gpio

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>

diff --git a/drivers/mmc/host/at91_mci.c b/drivers/mmc/host/at91_mci.c
index a8b4d2a..f437c3e 100644
--- a/drivers/mmc/host/at91_mci.c
+++ b/drivers/mmc/host/at91_mci.c
@@ -741,7 +741,7 @@ static void at91_mci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
 	at91_mci_write(host, AT91_MCI_MR, (at91_mci_read(host, AT91_MCI_MR) & ~AT91_MCI_CLKDIV) | clkdiv);
 
 	/* maybe switch power to the card */
-	if (host->board->vcc_pin) {
+	if (gpio_is_valid(host->board->vcc_pin)) {
 		switch (ios->power_mode) {
 			case MMC_POWER_OFF:
 				gpio_set_value(host->board->vcc_pin, 0);
@@ -897,7 +897,7 @@ static int at91_mci_get_ro(struct mmc_host *mmc)
 {
 	struct at91mci_host *host = mmc_priv(mmc);
 
-	if (host->board->wp_pin)
+	if (gpio_is_valid(host->board->wp_pin))
 		return !!gpio_get_value(host->board->wp_pin);
 	/*
 	 * Board doesn't support read only detection; let the mmc core
@@ -991,21 +991,21 @@ static int __init at91_mci_probe(struct platform_device *pdev)
 	 * Reserve GPIOs ... board init code makes sure these pins are set
 	 * up as GPIOs with the right direction (input, except for vcc)
 	 */
-	if (host->board->det_pin) {
+	if (gpio_is_valid(host->board->det_pin)) {
 		ret = gpio_request(host->board->det_pin, "mmc_detect");
 		if (ret < 0) {
 			dev_dbg(&pdev->dev, "couldn't claim card detect pin\n");
 			goto fail4b;
 		}
 	}
-	if (host->board->wp_pin) {
+	if (gpio_is_valid(host->board->wp_pin)) {
 		ret = gpio_request(host->board->wp_pin, "mmc_wp");
 		if (ret < 0) {
 			dev_dbg(&pdev->dev, "couldn't claim wp sense pin\n");
 			goto fail4;
 		}
 	}
-	if (host->board->vcc_pin) {
+	if (gpio_is_valid(host->board->vcc_pin)) {
 		ret = gpio_request(host->board->vcc_pin, "mmc_vcc");
 		if (ret < 0) {
 			dev_dbg(&pdev->dev, "couldn't claim vcc switch pin\n");
@@ -1057,7 +1057,7 @@ static int __init at91_mci_probe(struct platform_device *pdev)
 	/*
 	 * Add host to MMC layer
 	 */
-	if (host->board->det_pin) {
+	if (gpio_is_valid(host->board->det_pin)) {
 		host->present = !gpio_get_value(host->board->det_pin);
 	}
 	else
@@ -1068,7 +1068,7 @@ static int __init at91_mci_probe(struct platform_device *pdev)
 	/*
 	 * monitor card insertion/removal if we can
 	 */
-	if (host->board->det_pin) {
+	if (gpio_is_valid(host->board->det_pin)) {
 		ret = request_irq(gpio_to_irq(host->board->det_pin),
 				at91_mmc_det_irq, 0, mmc_hostname(mmc), host);
 		if (ret)
@@ -1087,13 +1087,13 @@ fail0:
 fail1:
 	clk_put(host->mci_clk);
 fail2:
-	if (host->board->vcc_pin)
+	if (gpio_is_valid(host->board->vcc_pin))
 		gpio_free(host->board->vcc_pin);
 fail3:
-	if (host->board->wp_pin)
+	if (gpio_is_valid(host->board->wp_pin))
 		gpio_free(host->board->wp_pin);
 fail4:
-	if (host->board->det_pin)
+	if (gpio_is_valid(host->board->det_pin))
 		gpio_free(host->board->det_pin);
 fail4b:
 	if (host->buffer)
@@ -1125,7 +1125,7 @@ static int __exit at91_mci_remove(struct platform_device *pdev)
 		dma_free_coherent(&pdev->dev, MCI_BUFSIZE,
 				host->buffer, host->physical_address);
 
-	if (host->board->det_pin) {
+	if (gpio_is_valid(host->board->det_pin)) {
 		if (device_can_wakeup(&pdev->dev))
 			free_irq(gpio_to_irq(host->board->det_pin), host);
 		device_init_wakeup(&pdev->dev, 0);
@@ -1140,9 +1140,9 @@ static int __exit at91_mci_remove(struct platform_device *pdev)
 	clk_disable(host->mci_clk);			/* Disable the peripheral clock */
 	clk_put(host->mci_clk);
 
-	if (host->board->vcc_pin)
+	if (gpio_is_valid(host->board->vcc_pin))
 		gpio_free(host->board->vcc_pin);
-	if (host->board->wp_pin)
+	if (gpio_is_valid(host->board->wp_pin))
 		gpio_free(host->board->wp_pin);
 
 	iounmap(host->baseaddr);
@@ -1163,7 +1163,7 @@ static int at91_mci_suspend(struct platform_device *pdev, pm_message_t state)
 	struct at91mci_host *host = mmc_priv(mmc);
 	int ret = 0;
 
-	if (host->board->det_pin && device_may_wakeup(&pdev->dev))
+	if (gpio_is_valid(host->board->det_pin) && device_may_wakeup(&pdev->dev))
 		enable_irq_wake(host->board->det_pin);
 
 	if (mmc)
@@ -1178,7 +1178,7 @@ static int at91_mci_resume(struct platform_device *pdev)
 	struct at91mci_host *host = mmc_priv(mmc);
 	int ret = 0;
 
-	if (host->board->det_pin && device_may_wakeup(&pdev->dev))
+	if (gpio_is_valid(host->board->det_pin) && device_may_wakeup(&pdev->dev))
 		disable_irq_wake(host->board->det_pin);
 
 	if (mmc)
-- 
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