ALSA: atmel: convert AC97c driver to GPIO descriptor API

index 5ffefac2fa8f..380025887aef 100644
@@ -12,16 +12,15 @@
 #include <linux/bitmap.h>
 #include <linux/device.h>
 #include <linux/atmel_pdc.h>
+#include <linux/gpio/consumer.h>
 #include <linux/init.h>
 #include <linux/interrupt.h>
 #include <linux/module.h>
 #include <linux/platform_device.h>
 #include <linux/mutex.h>
-#include <linux/gpio.h>
 #include <linux/types.h>
 #include <linux/io.h>
 #include <linux/of.h>
-#include <linux/of_gpio.h>
 #include <linux/of_device.h>
 
 #include <sound/core.h>

@@ -29,7 +28,6 @@
 #include <sound/pcm.h>
 #include <sound/pcm_params.h>
 #include <sound/ac97_codec.h>
-#include <sound/atmel-ac97c.h>
 #include <sound/memalloc.h>
 
 #include "ac97c.h"

@@ -56,7 +54,7 @@ struct atmel_ac97c {
 	void __iomem			*regs;
 	int				irq;
 	int				opened;
-	int				reset_pin;
+	struct gpio_desc		*reset_pin;
 };
 
 #define get_chip(card) ((struct atmel_ac97c *)(card)->private_data)

@@ -700,11 +698,11 @@ static void atmel_ac97c_reset(struct atmel_ac97c *chip)
 	ac97c_writel(chip, CAMR, 0);
 	ac97c_writel(chip, COMR, 0);
 
-	if (gpio_is_valid(chip->reset_pin)) {
-		gpio_set_value(chip->reset_pin, 0);
+	if (!IS_ERR(chip->reset_pin)) {
+		gpiod_set_value(chip->reset_pin, 0);
 		/* AC97 v2.2 specifications says minimum 1 us. */
 		udelay(2);
-		gpio_set_value(chip->reset_pin, 1);
+		gpiod_set_value(chip->reset_pin, 1);
 	} else {
 		ac97c_writel(chip, MR, AC97C_MR_WRST | AC97C_MR_ENA);
 		udelay(2);

@@ -712,45 +710,18 @@ static void atmel_ac97c_reset(struct atmel_ac97c *chip)
 	}
 }
 
-#ifdef CONFIG_OF
 static const struct of_device_id atmel_ac97c_dt_ids[] = {
 	{ .compatible = "atmel,at91sam9263-ac97c", },
 	{ }
 };
 MODULE_DEVICE_TABLE(of, atmel_ac97c_dt_ids);
 
-static struct ac97c_platform_data *atmel_ac97c_probe_dt(struct device *dev)
-{
-	struct ac97c_platform_data *pdata;
-	struct device_node *node = dev->of_node;
-
-	if (!node) {
-		dev_err(dev, "Device does not have associated DT data\n");
-		return ERR_PTR(-EINVAL);
-	}
-
-	pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL);
-	if (!pdata)
-		return ERR_PTR(-ENOMEM);
-
-	pdata->reset_pin = of_get_named_gpio(dev->of_node, "ac97-gpios", 2);
-
-	return pdata;
-}
-#else
-static struct ac97c_platform_data *atmel_ac97c_probe_dt(struct device *dev)
-{
-	dev_err(dev, "no platform data defined\n");
-	return ERR_PTR(-ENXIO);
-}
-#endif
-
 static int atmel_ac97c_probe(struct platform_device *pdev)
 {
+	struct device			*dev = &pdev->dev;
 	struct snd_card			*card;
 	struct atmel_ac97c		*chip;
 	struct resource			*regs;
-	struct ac97c_platform_data	*pdata;
 	struct clk			*pclk;
 	static struct snd_ac97_bus_ops	ops = {
 		.write	= atmel_ac97c_write,

@@ -765,13 +736,6 @@ static int atmel_ac97c_probe(struct platform_device *pdev)
 		return -ENXIO;
 	}
 
-	pdata = dev_get_platdata(&pdev->dev);
-	if (!pdata) {
-		pdata = atmel_ac97c_probe_dt(&pdev->dev);
-		if (IS_ERR(pdata))
-			return PTR_ERR(pdata);
-	}
-
 	irq = platform_get_irq(pdev, 0);
 	if (irq < 0) {
 		dev_dbg(&pdev->dev, "could not get irq: %d\n", irq);

@@ -821,17 +785,9 @@ static int atmel_ac97c_probe(struct platform_device *pdev)
 		goto err_ioremap;
 	}
 
-	if (gpio_is_valid(pdata->reset_pin)) {
-		if (gpio_request(pdata->reset_pin, "reset_pin")) {
-			dev_dbg(&pdev->dev, "reset pin not available\n");
-			chip->reset_pin = -ENODEV;
-		} else {
-			gpio_direction_output(pdata->reset_pin, 1);
-			chip->reset_pin = pdata->reset_pin;
-		}
-	} else {
-		chip->reset_pin = -EINVAL;
-	}
+	chip->reset_pin = devm_gpiod_get_index(dev, "ac97", 2, GPIOD_OUT_HIGH);
+	if (IS_ERR(chip->reset_pin))
+		dev_dbg(dev, "reset pin not available\n");
 
 	atmel_ac97c_reset(chip);
 

@@ -871,9 +827,6 @@ static int atmel_ac97c_probe(struct platform_device *pdev)
 	return 0;
 
 err_ac97_bus:
-	if (gpio_is_valid(chip->reset_pin))
-		gpio_free(chip->reset_pin);
-
 	iounmap(chip->regs);
 err_ioremap:
 	free_irq(irq, chip);

@@ -916,9 +869,6 @@ static int atmel_ac97c_remove(struct platform_device *pdev)
 	struct snd_card *card = platform_get_drvdata(pdev);
 	struct atmel_ac97c *chip = get_chip(card);
 
-	if (gpio_is_valid(chip->reset_pin))
-		gpio_free(chip->reset_pin);
-
 	ac97c_writel(chip, CAMR, 0);
 	ac97c_writel(chip, COMR, 0);
 	ac97c_writel(chip, MR,   0);

@@ -939,7 +889,7 @@ static struct platform_driver atmel_ac97c_driver = {
 	.driver		= {
 		.name	= "atmel_ac97c",
 		.pm	= ATMEL_AC97C_PM_OPS,
-		.of_match_table = of_match_ptr(atmel_ac97c_dt_ids),
+		.of_match_table = atmel_ac97c_dt_ids,
 	},
 };
 module_platform_driver(atmel_ac97c_driver);

deleted file mode 100644
index a8f735d677fa..000000000000
@@ -1,23 +0,0 @@
-/*
- * Driver for the Atmel Audio Bitstream DAC (ABDAC)
- *
- * Copyright (C) 2009 Atmel Corporation
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published
- * by the Free Software Foundation.
- */
-#ifndef __INCLUDE_SOUND_ATMEL_ABDAC_H
-#define __INCLUDE_SOUND_ATMEL_ABDAC_H
-
-#include <linux/platform_data/dma-dw.h>
-
-/**
- * struct atmel_abdac_pdata - board specific ABDAC configuration
- * @dws: DMA slave interface to use for sound playback.
- */
-struct atmel_abdac_pdata {
-	struct dw_dma_slave	dws;
-};
-
-#endif /* __INCLUDE_SOUND_ATMEL_ABDAC_H */

deleted file mode 100644
index f2a1cdc37661..000000000000
@@ -1,38 +0,0 @@
-/*
- * Driver for the Atmel AC97C controller
- *
- * Copyright (C) 2005-2009 Atmel Corporation
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published
- * by the Free Software Foundation.
- */
-#ifndef __INCLUDE_SOUND_ATMEL_AC97C_H
-#define __INCLUDE_SOUND_ATMEL_AC97C_H
-
-#include <linux/platform_data/dma-dw.h>
-
-#define AC97C_CAPTURE	0x01
-#define AC97C_PLAYBACK	0x02
-#define AC97C_BOTH	(AC97C_CAPTURE | AC97C_PLAYBACK)
-
-/**
- * struct atmel_ac97c_pdata - board specific AC97C configuration
- * @rx_dws: DMA slave interface to use for sound capture.
- * @tx_dws: DMA slave interface to use for sound playback.
- * @reset_pin: GPIO pin wired to the reset input on the external AC97 codec,
- *             optional to use, set to -ENODEV if not in use. AC97 layer will
- *             try to do a software reset of the external codec anyway.
- *
- * If the user do not want to use a DMA channel for playback or capture, i.e.
- * only one feature is required on the board. The slave for playback or capture
- * can be set to NULL. The AC97C driver will take use of this when setting up
- * the sound streams.
- */
-struct ac97c_platform_data {
-	struct dw_dma_slave	rx_dws;
-	struct dw_dma_slave	tx_dws;
-	int			reset_pin;
-};
-
-#endif /* __INCLUDE_SOUND_ATMEL_AC97C_H */