Instead of relying on legacy interfaces, convert the driver to use GPIO descriptors. This is a straight-forward conversion, we support also sdw devices providing GPIO descriptor tables if they so desire.
Signed-off-by: Linus Walleij linus.walleij@linaro.org --- sound/soc/codecs/max98373-i2c.c | 17 ----------------- sound/soc/codecs/max98373.c | 35 +++++++++++++++++++---------------- sound/soc/codecs/max98373.h | 2 +- 3 files changed, 20 insertions(+), 34 deletions(-)
diff --git a/sound/soc/codecs/max98373-i2c.c b/sound/soc/codecs/max98373-i2c.c index 0fa5ceca62a2..e7ec7875c4a9 100644 --- a/sound/soc/codecs/max98373-i2c.c +++ b/sound/soc/codecs/max98373-i2c.c @@ -3,12 +3,10 @@
#include <linux/acpi.h> #include <linux/delay.h> -#include <linux/gpio.h> #include <linux/i2c.h> #include <linux/module.h> #include <linux/mod_devicetable.h> #include <linux/of.h> -#include <linux/of_gpio.h> #include <linux/pm.h> #include <linux/regmap.h> #include <linux/slab.h> @@ -560,21 +558,6 @@ static int max98373_i2c_probe(struct i2c_client *i2c) /* voltage/current slot & gpio configuration */ max98373_slot_config(&i2c->dev, max98373);
- /* Power on device */ - if (gpio_is_valid(max98373->reset_gpio)) { - ret = devm_gpio_request(&i2c->dev, max98373->reset_gpio, - "MAX98373_RESET"); - if (ret) { - dev_err(&i2c->dev, "%s: Failed to request gpio %d\n", - __func__, max98373->reset_gpio); - return -EINVAL; - } - gpio_direction_output(max98373->reset_gpio, 0); - msleep(50); - gpio_direction_output(max98373->reset_gpio, 1); - msleep(20); - } - /* Check Revision ID */ ret = regmap_read(max98373->regmap, MAX98373_R21FF_REV_ID, ®); diff --git a/sound/soc/codecs/max98373.c b/sound/soc/codecs/max98373.c index fde055c6c894..33eb4576da23 100644 --- a/sound/soc/codecs/max98373.c +++ b/sound/soc/codecs/max98373.c @@ -12,9 +12,8 @@ #include <sound/pcm.h> #include <sound/pcm_params.h> #include <sound/soc.h> -#include <linux/gpio.h> +#include <linux/gpio/consumer.h> #include <linux/of.h> -#include <linux/of_gpio.h> #include <sound/tlv.h> #include "max98373.h"
@@ -478,20 +477,24 @@ void max98373_slot_config(struct device *dev, max98373->i_slot = value & 0xF; else max98373->i_slot = 1; - if (dev->of_node) { - max98373->reset_gpio = of_get_named_gpio(dev->of_node, - "maxim,reset-gpio", 0); - if (!gpio_is_valid(max98373->reset_gpio)) { - dev_err(dev, "Looking up %s property in node %s failed %d\n", - "maxim,reset-gpio", dev->of_node->full_name, - max98373->reset_gpio); - } else { - dev_dbg(dev, "maxim,reset-gpio=%d", - max98373->reset_gpio); - } - } else { - /* this makes reset_gpio as invalid */ - max98373->reset_gpio = -1; + + /* This will assert RESET */ + max98373->reset = devm_gpiod_get_optional(dev, + "maxim,reset", + GPIOD_OUT_HIGH); + if (IS_ERR(max98373->reset)) { + dev_err(dev, "error %ld looking up RESET GPIO line\n", + PTR_ERR(max98373->reset)); + return; + } + + /* Cycle reset */ + if (max98373->reset) { + gpiod_set_consumer_name(max98373->reset ,"MAX98373_RESET"); + gpiod_direction_output(max98373->reset, 1); + msleep(50); + gpiod_direction_output(max98373->reset, 0); + msleep(20); }
if (!device_property_read_u32(dev, "maxim,spkfb-slot-no", &value)) diff --git a/sound/soc/codecs/max98373.h b/sound/soc/codecs/max98373.h index e1810b3b1620..af3b62217497 100644 --- a/sound/soc/codecs/max98373.h +++ b/sound/soc/codecs/max98373.h @@ -213,7 +213,7 @@ struct max98373_cache {
struct max98373_priv { struct regmap *regmap; - int reset_gpio; + struct gpio_desc *reset; unsigned int v_slot; unsigned int i_slot; unsigned int spkfb_slot;