[PATCH 2/5] mmc: sdhci-acpi: covert to use GPIO descriptor API

[Mika Westerberg <mika.westerberg@linux.intel.com>]

The new descriptor based GPIO interface is now the recommend and more safer
way of using GPIOs from device drivers. Convert the ACPI SDHCI driver to
use that interface.

Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
---
 drivers/mmc/host/sdhci-acpi.c | 26 ++++++++++----------------
 1 file changed, 10 insertions(+), 16 deletions(-)

diff --git a/drivers/mmc/host/sdhci-acpi.c b/drivers/mmc/host/sdhci-acpi.c
index ef19874fcd1f..379ddfe14bc7 100644
--- a/drivers/mmc/host/sdhci-acpi.c
+++ b/drivers/mmc/host/sdhci-acpi.c
@@ -31,10 +31,9 @@
 #include <linux/bitops.h>
 #include <linux/types.h>
 #include <linux/err.h>
-#include <linux/gpio.h>
+#include <linux/gpio/consumer.h>
 #include <linux/interrupt.h>
 #include <linux/acpi.h>
-#include <linux/acpi_gpio.h>
 #include <linux/pm.h>
 #include <linux/pm_runtime.h>
 #include <linux/delay.h>
@@ -199,22 +198,19 @@ static irqreturn_t sdhci_acpi_sd_cd(int irq, void *dev_id)
 	return IRQ_HANDLED;
 }
 
-static int sdhci_acpi_add_own_cd(struct device *dev, int gpio,
-				 struct mmc_host *mmc)
+static int sdhci_acpi_add_own_cd(struct device *dev, struct mmc_host *mmc)
 {
+	struct gpio_desc *desc;
 	unsigned long flags;
 	int err, irq;
 
-	if (gpio < 0) {
-		err = gpio;
+	desc = devm_gpiod_get_index(dev, NULL, 0);
+	if (IS_ERR(desc)) {
+		err = PTR_ERR(desc);
 		goto out;
 	}
 
-	err = devm_gpio_request_one(dev, gpio, GPIOF_DIR_IN, "sd_cd");
-	if (err)
-		goto out;
-
-	irq = gpio_to_irq(gpio);
+	irq = gpiod_to_irq(desc);
 	if (irq < 0) {
 		err = irq;
 		goto out_free;
@@ -228,7 +224,7 @@ static int sdhci_acpi_add_own_cd(struct device *dev, int gpio,
 	return 0;
 
 out_free:
-	devm_gpio_free(dev, gpio);
+	devm_gpiod_put(dev, desc);
 out:
 	dev_warn(dev, "failed to setup card detect wake up\n");
 	return err;
@@ -254,7 +250,7 @@ static int sdhci_acpi_probe(struct platform_device *pdev)
 	struct resource *iomem;
 	resource_size_t len;
 	const char *hid;
-	int err, gpio;
+	int err;
 
 	if (acpi_bus_get_device(handle, &device))
 		return -ENODEV;
@@ -279,8 +275,6 @@ static int sdhci_acpi_probe(struct platform_device *pdev)
 	if (IS_ERR(host))
 		return PTR_ERR(host);
 
-	gpio = acpi_get_gpio_by_index(dev, 0, NULL);
-
 	c = sdhci_priv(host);
 	c->host = host;
 	c->slot = sdhci_acpi_get_slot(handle, hid);
@@ -338,7 +332,7 @@ static int sdhci_acpi_probe(struct platform_device *pdev)
 		goto err_free;
 
 	if (sdhci_acpi_flag(c, SDHCI_ACPI_SD_CD)) {
-		if (sdhci_acpi_add_own_cd(dev, gpio, host->mmc))
+		if (sdhci_acpi_add_own_cd(dev, host->mmc))
 			c->use_runtime_pm = false;
 	}
 
-- 
1.8.4.3