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Diffstat (limited to 'sound/soc/soc-ac97.c')
-rw-r--r--sound/soc/soc-ac97.c221
1 files changed, 101 insertions, 120 deletions
diff --git a/sound/soc/soc-ac97.c b/sound/soc/soc-ac97.c
index 36dae41f65fc..37486d6a438e 100644
--- a/sound/soc/soc-ac97.c
+++ b/sound/soc/soc-ac97.c
@@ -1,28 +1,22 @@
-/*
- * soc-ac97.c -- ALSA SoC Audio Layer AC97 support
- *
- * Copyright 2005 Wolfson Microelectronics PLC.
- * Copyright 2005 Openedhand Ltd.
- * Copyright (C) 2010 Slimlogic Ltd.
- * Copyright (C) 2010 Texas Instruments Inc.
- *
- * Author: Liam Girdwood <lrg@slimlogic.co.uk>
- * with code, comments and ideas from :-
- * Richard Purdie <richard@openedhand.com>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- */
+// SPDX-License-Identifier: GPL-2.0+
+//
+// soc-ac97.c -- ALSA SoC Audio Layer AC97 support
+//
+// Copyright 2005 Wolfson Microelectronics PLC.
+// Copyright 2005 Openedhand Ltd.
+// Copyright (C) 2010 Slimlogic Ltd.
+// Copyright (C) 2010 Texas Instruments Inc.
+//
+// Author: Liam Girdwood <lrg@slimlogic.co.uk>
+// with code, comments and ideas from :-
+// Richard Purdie <richard@openedhand.com>
#include <linux/ctype.h>
#include <linux/delay.h>
#include <linux/export.h>
-#include <linux/gpio.h>
+#include <linux/gpio/consumer.h>
#include <linux/gpio/driver.h>
#include <linux/init.h>
-#include <linux/of_gpio.h>
#include <linux/of.h>
#include <linux/pinctrl/consumer.h>
#include <linux/slab.h>
@@ -34,17 +28,9 @@ struct snd_ac97_reset_cfg {
struct pinctrl_state *pstate_reset;
struct pinctrl_state *pstate_warm_reset;
struct pinctrl_state *pstate_run;
- int gpio_sdata;
- int gpio_sync;
- int gpio_reset;
-};
-
-struct snd_ac97_gpio_priv {
-#ifdef CONFIG_GPIOLIB
- struct gpio_chip gpio_chip;
-#endif
- unsigned int gpios_set;
- struct snd_soc_codec *codec;
+ struct gpio_desc *reset_gpio;
+ struct gpio_desc *sdata_gpio;
+ struct gpio_desc *sync_gpio;
};
static struct snd_ac97_bus soc_ac97_bus = {
@@ -57,14 +43,20 @@ static void soc_ac97_device_release(struct device *dev)
}
#ifdef CONFIG_GPIOLIB
-static inline struct snd_soc_codec *gpio_to_codec(struct gpio_chip *chip)
+struct snd_ac97_gpio_priv {
+ struct gpio_chip gpio_chip;
+ unsigned int gpios_set;
+ struct snd_soc_component *component;
+};
+
+static inline struct snd_soc_component *gpio_to_component(struct gpio_chip *chip)
{
struct snd_ac97_gpio_priv *gpio_priv = gpiochip_get_data(chip);
- return gpio_priv->codec;
+ return gpio_priv->component;
}
-static int snd_soc_ac97_gpio_request(struct gpio_chip *chip, unsigned offset)
+static int snd_soc_ac97_gpio_request(struct gpio_chip *chip, unsigned int offset)
{
if (offset >= AC97_NUM_GPIOS)
return -EINVAL;
@@ -73,47 +65,57 @@ static int snd_soc_ac97_gpio_request(struct gpio_chip *chip, unsigned offset)
}
static int snd_soc_ac97_gpio_direction_in(struct gpio_chip *chip,
- unsigned offset)
+ unsigned int offset)
{
- struct snd_soc_codec *codec = gpio_to_codec(chip);
+ struct snd_soc_component *component = gpio_to_component(chip);
- dev_dbg(codec->dev, "set gpio %d to output\n", offset);
- return snd_soc_update_bits(codec, AC97_GPIO_CFG,
+ dev_dbg(component->dev, "set gpio %d to output\n", offset);
+ return snd_soc_component_update_bits(component, AC97_GPIO_CFG,
1 << offset, 1 << offset);
}
-static int snd_soc_ac97_gpio_get(struct gpio_chip *chip, unsigned offset)
+static int snd_soc_ac97_gpio_get(struct gpio_chip *chip, unsigned int offset)
{
- struct snd_soc_codec *codec = gpio_to_codec(chip);
+ struct snd_soc_component *component = gpio_to_component(chip);
int ret;
- ret = snd_soc_read(codec, AC97_GPIO_STATUS);
- dev_dbg(codec->dev, "get gpio %d : %d\n", offset,
- ret < 0 ? ret : ret & (1 << offset));
+ ret = snd_soc_component_read(component, AC97_GPIO_STATUS);
+
+ dev_dbg(component->dev, "get gpio %d : %d\n", offset,
+ ret & (1 << offset));
- return ret < 0 ? ret : !!(ret & (1 << offset));
+ return !!(ret & (1 << offset));
}
-static void snd_soc_ac97_gpio_set(struct gpio_chip *chip, unsigned offset,
- int value)
+static int snd_soc_ac97_gpio_set(struct gpio_chip *chip, unsigned int offset,
+ int value)
{
struct snd_ac97_gpio_priv *gpio_priv = gpiochip_get_data(chip);
- struct snd_soc_codec *codec = gpio_to_codec(chip);
+ struct snd_soc_component *component = gpio_to_component(chip);
gpio_priv->gpios_set &= ~(1 << offset);
gpio_priv->gpios_set |= (!!value) << offset;
- snd_soc_write(codec, AC97_GPIO_STATUS, gpio_priv->gpios_set);
- dev_dbg(codec->dev, "set gpio %d to %d\n", offset, !!value);
+ snd_soc_component_write(component, AC97_GPIO_STATUS,
+ gpio_priv->gpios_set);
+ dev_dbg(component->dev, "set gpio %d to %d\n", offset, !!value);
+
+ return 0;
}
static int snd_soc_ac97_gpio_direction_out(struct gpio_chip *chip,
unsigned offset, int value)
{
- struct snd_soc_codec *codec = gpio_to_codec(chip);
+ struct snd_soc_component *component = gpio_to_component(chip);
+ int ret;
- dev_dbg(codec->dev, "set gpio %d to output\n", offset);
- snd_soc_ac97_gpio_set(chip, offset, value);
- return snd_soc_update_bits(codec, AC97_GPIO_CFG, 1 << offset, 0);
+ dev_dbg(component->dev, "set gpio %d to output\n", offset);
+
+ ret = snd_soc_ac97_gpio_set(chip, offset, value);
+ if (ret)
+ return ret;
+
+ return snd_soc_component_update_bits(component, AC97_GPIO_CFG,
+ 1 << offset, 0);
}
static const struct gpio_chip snd_soc_ac97_gpio_chip = {
@@ -128,24 +130,24 @@ static const struct gpio_chip snd_soc_ac97_gpio_chip = {
};
static int snd_soc_ac97_init_gpio(struct snd_ac97 *ac97,
- struct snd_soc_codec *codec)
+ struct snd_soc_component *component)
{
struct snd_ac97_gpio_priv *gpio_priv;
int ret;
- gpio_priv = devm_kzalloc(codec->dev, sizeof(*gpio_priv), GFP_KERNEL);
+ gpio_priv = devm_kzalloc(component->dev, sizeof(*gpio_priv), GFP_KERNEL);
if (!gpio_priv)
return -ENOMEM;
ac97->gpio_priv = gpio_priv;
- gpio_priv->codec = codec;
+ gpio_priv->component = component;
gpio_priv->gpio_chip = snd_soc_ac97_gpio_chip;
gpio_priv->gpio_chip.ngpio = AC97_NUM_GPIOS;
- gpio_priv->gpio_chip.parent = codec->dev;
+ gpio_priv->gpio_chip.parent = component->dev;
gpio_priv->gpio_chip.base = -1;
ret = gpiochip_add_data(&gpio_priv->gpio_chip, gpio_priv);
if (ret != 0)
- dev_err(codec->dev, "Failed to add GPIOs: %d\n", ret);
+ dev_err(component->dev, "Failed to add GPIOs: %d\n", ret);
return ret;
}
@@ -155,7 +157,7 @@ static void snd_soc_ac97_free_gpio(struct snd_ac97 *ac97)
}
#else
static int snd_soc_ac97_init_gpio(struct snd_ac97 *ac97,
- struct snd_soc_codec *codec)
+ struct snd_soc_component *component)
{
return 0;
}
@@ -166,16 +168,16 @@ static void snd_soc_ac97_free_gpio(struct snd_ac97 *ac97)
#endif
/**
- * snd_soc_alloc_ac97_codec() - Allocate new a AC'97 device
- * @codec: The CODEC for which to create the AC'97 device
+ * snd_soc_alloc_ac97_component() - Allocate new a AC'97 device
+ * @component: The COMPONENT for which to create the AC'97 device
*
* Allocated a new snd_ac97 device and intializes it, but does not yet register
* it. The caller is responsible to either call device_add(&ac97->dev) to
* register the device, or to call put_device(&ac97->dev) to free the device.
*
- * Returns: A snd_ac97 device or a PTR_ERR in case of an error.
+ * Returns: A snd_ac97 device or an ERR_PTR in case of an error.
*/
-struct snd_ac97 *snd_soc_alloc_ac97_codec(struct snd_soc_codec *codec)
+struct snd_ac97 *snd_soc_alloc_ac97_component(struct snd_soc_component *component)
{
struct snd_ac97 *ac97;
@@ -187,47 +189,47 @@ struct snd_ac97 *snd_soc_alloc_ac97_codec(struct snd_soc_codec *codec)
ac97->num = 0;
ac97->dev.bus = &ac97_bus_type;
- ac97->dev.parent = codec->component.card->dev;
+ ac97->dev.parent = component->card->dev;
ac97->dev.release = soc_ac97_device_release;
dev_set_name(&ac97->dev, "%d-%d:%s",
- codec->component.card->snd_card->number, 0,
- codec->component.name);
+ component->card->snd_card->number, 0,
+ component->name);
device_initialize(&ac97->dev);
return ac97;
}
-EXPORT_SYMBOL(snd_soc_alloc_ac97_codec);
+EXPORT_SYMBOL(snd_soc_alloc_ac97_component);
/**
- * snd_soc_new_ac97_codec - initailise AC97 device
- * @codec: audio codec
+ * snd_soc_new_ac97_component - initailise AC97 device
+ * @component: audio component
* @id: The expected device ID
* @id_mask: Mask that is applied to the device ID before comparing with @id
*
- * Initialises AC97 codec resources for use by ad-hoc devices only.
+ * Initialises AC97 component resources for use by ad-hoc devices only.
*
* If @id is not 0 this function will reset the device, then read the ID from
* the device and check if it matches the expected ID. If it doesn't match an
* error will be returned and device will not be registered.
*
- * Returns: A PTR_ERR() on failure or a valid snd_ac97 struct on success.
+ * Returns: An ERR_PTR on failure or a valid snd_ac97 struct on success.
*/
-struct snd_ac97 *snd_soc_new_ac97_codec(struct snd_soc_codec *codec,
+struct snd_ac97 *snd_soc_new_ac97_component(struct snd_soc_component *component,
unsigned int id, unsigned int id_mask)
{
struct snd_ac97 *ac97;
int ret;
- ac97 = snd_soc_alloc_ac97_codec(codec);
+ ac97 = snd_soc_alloc_ac97_component(component);
if (IS_ERR(ac97))
return ac97;
if (id) {
ret = snd_ac97_reset(ac97, false, id, id_mask);
if (ret < 0) {
- dev_err(codec->dev, "Failed to reset AC97 device: %d\n",
+ dev_err(component->dev, "Failed to reset AC97 device: %d\n",
ret);
goto err_put_device;
}
@@ -237,7 +239,7 @@ struct snd_ac97 *snd_soc_new_ac97_codec(struct snd_soc_codec *codec,
if (ret)
goto err_put_device;
- ret = snd_soc_ac97_init_gpio(ac97, codec);
+ ret = snd_soc_ac97_init_gpio(ac97, component);
if (ret)
goto err_put_device;
@@ -247,22 +249,22 @@ err_put_device:
put_device(&ac97->dev);
return ERR_PTR(ret);
}
-EXPORT_SYMBOL_GPL(snd_soc_new_ac97_codec);
+EXPORT_SYMBOL_GPL(snd_soc_new_ac97_component);
/**
- * snd_soc_free_ac97_codec - free AC97 codec device
+ * snd_soc_free_ac97_component - free AC97 component device
* @ac97: snd_ac97 device to be freed
*
- * Frees AC97 codec device resources.
+ * Frees AC97 component device resources.
*/
-void snd_soc_free_ac97_codec(struct snd_ac97 *ac97)
+void snd_soc_free_ac97_component(struct snd_ac97 *ac97)
{
snd_soc_ac97_free_gpio(ac97);
device_del(&ac97->dev);
ac97->bus = NULL;
put_device(&ac97->dev);
}
-EXPORT_SYMBOL_GPL(snd_soc_free_ac97_codec);
+EXPORT_SYMBOL_GPL(snd_soc_free_ac97_component);
static struct snd_ac97_reset_cfg snd_ac97_rst_cfg;
@@ -272,11 +274,11 @@ static void snd_soc_ac97_warm_reset(struct snd_ac97 *ac97)
pinctrl_select_state(pctl, snd_ac97_rst_cfg.pstate_warm_reset);
- gpio_direction_output(snd_ac97_rst_cfg.gpio_sync, 1);
+ gpiod_direction_output_raw(snd_ac97_rst_cfg.sync_gpio, 1);
udelay(10);
- gpio_direction_output(snd_ac97_rst_cfg.gpio_sync, 0);
+ gpiod_direction_output_raw(snd_ac97_rst_cfg.sync_gpio, 0);
pinctrl_select_state(pctl, snd_ac97_rst_cfg.pstate_run);
msleep(2);
@@ -288,13 +290,13 @@ static void snd_soc_ac97_reset(struct snd_ac97 *ac97)
pinctrl_select_state(pctl, snd_ac97_rst_cfg.pstate_reset);
- gpio_direction_output(snd_ac97_rst_cfg.gpio_sync, 0);
- gpio_direction_output(snd_ac97_rst_cfg.gpio_sdata, 0);
- gpio_direction_output(snd_ac97_rst_cfg.gpio_reset, 0);
+ gpiod_direction_output_raw(snd_ac97_rst_cfg.sync_gpio, 0);
+ gpiod_direction_output_raw(snd_ac97_rst_cfg.sdata_gpio, 0);
+ gpiod_direction_output_raw(snd_ac97_rst_cfg.reset_gpio, 0);
udelay(10);
- gpio_direction_output(snd_ac97_rst_cfg.gpio_reset, 1);
+ gpiod_direction_output_raw(snd_ac97_rst_cfg.reset_gpio, 1);
pinctrl_select_state(pctl, snd_ac97_rst_cfg.pstate_run);
msleep(2);
@@ -305,8 +307,6 @@ static int snd_soc_ac97_parse_pinctl(struct device *dev,
{
struct pinctrl *p;
struct pinctrl_state *state;
- int gpio;
- int ret;
p = devm_pinctrl_get(dev);
if (IS_ERR(p)) {
@@ -336,41 +336,20 @@ static int snd_soc_ac97_parse_pinctl(struct device *dev,
}
cfg->pstate_run = state;
- gpio = of_get_named_gpio(dev->of_node, "ac97-gpios", 0);
- if (gpio < 0) {
- dev_err(dev, "Can't find ac97-sync gpio\n");
- return gpio;
- }
- ret = devm_gpio_request(dev, gpio, "AC97 link sync");
- if (ret) {
- dev_err(dev, "Failed requesting ac97-sync gpio\n");
- return ret;
- }
- cfg->gpio_sync = gpio;
+ cfg->sync_gpio = devm_gpiod_get_index(dev, "ac97", 0, GPIOD_ASIS);
+ if (IS_ERR(cfg->sync_gpio))
+ return dev_err_probe(dev, PTR_ERR(cfg->sync_gpio), "Can't find ac97-sync gpio\n");
+ gpiod_set_consumer_name(cfg->sync_gpio, "AC97 link sync");
- gpio = of_get_named_gpio(dev->of_node, "ac97-gpios", 1);
- if (gpio < 0) {
- dev_err(dev, "Can't find ac97-sdata gpio %d\n", gpio);
- return gpio;
- }
- ret = devm_gpio_request(dev, gpio, "AC97 link sdata");
- if (ret) {
- dev_err(dev, "Failed requesting ac97-sdata gpio\n");
- return ret;
- }
- cfg->gpio_sdata = gpio;
+ cfg->sdata_gpio = devm_gpiod_get_index(dev, "ac97", 1, GPIOD_ASIS);
+ if (IS_ERR(cfg->sdata_gpio))
+ return dev_err_probe(dev, PTR_ERR(cfg->sdata_gpio), "Can't find ac97-sdata gpio\n");
+ gpiod_set_consumer_name(cfg->sdata_gpio, "AC97 link sdata");
- gpio = of_get_named_gpio(dev->of_node, "ac97-gpios", 2);
- if (gpio < 0) {
- dev_err(dev, "Can't find ac97-reset gpio\n");
- return gpio;
- }
- ret = devm_gpio_request(dev, gpio, "AC97 link reset");
- if (ret) {
- dev_err(dev, "Failed requesting ac97-reset gpio\n");
- return ret;
- }
- cfg->gpio_reset = gpio;
+ cfg->reset_gpio = devm_gpiod_get_index(dev, "ac97", 2, GPIOD_ASIS);
+ if (IS_ERR(cfg->reset_gpio))
+ return dev_err_probe(dev, PTR_ERR(cfg->reset_gpio), "Can't find ac97-reset gpio\n");
+ gpiod_set_consumer_name(cfg->reset_gpio, "AC97 link reset");
return 0;
}
@@ -395,6 +374,8 @@ EXPORT_SYMBOL_GPL(snd_soc_set_ac97_ops);
/**
* snd_soc_set_ac97_ops_of_reset - Set ac97 ops with generic ac97 reset functions
+ * @ops: bus ops
+ * @pdev: platform device
*
* This function sets the reset and warm_reset properties of ops and parses
* the device node of pdev to get pinctrl states and gpio numbers to use.
generated by cgit (git 2.34.1) at 2025-12-26 15:50:36 +0000