linux-kernel - [PATCH v1 4/8] iio: accel: adxl345: Make use of device properties

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Date:   Tue, 22 Feb 2022 01:32:31 +0200
From:   Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To:     Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        linux-iio@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     Lars-Peter Clausen <lars@...afoo.de>,
        Michael Hennerich <Michael.Hennerich@...log.com>,
        Jonathan Cameron <jic23@...nel.org>,
        Kai-Heng Feng <kai.heng.feng@...onical.com>
Subject: [PATCH v1 4/8] iio: accel: adxl345: Make use of device properties

Convert the module to be property provider agnostic and allow
it to be used on non-OF platforms.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
---
 drivers/iio/accel/adxl345.h      |  2 +-
 drivers/iio/accel/adxl345_core.c |  5 ++++-
 drivers/iio/accel/adxl345_i2c.c  | 11 ++++-------
 drivers/iio/accel/adxl345_spi.c  |  3 +--
 4 files changed, 10 insertions(+), 11 deletions(-)

diff --git a/drivers/iio/accel/adxl345.h b/drivers/iio/accel/adxl345.h
index 9b0d4f487c43..d7e67cb08538 100644
--- a/drivers/iio/accel/adxl345.h
+++ b/drivers/iio/accel/adxl345.h
@@ -13,6 +13,6 @@ enum adxl345_device_type {
 	ADXL375 = 2,
 };
 
-int adxl345_core_probe(struct device *dev, struct regmap *regmap, enum adxl345_device_type type);
+int adxl345_core_probe(struct device *dev, struct regmap *regmap);
 
 #endif /* _ADXL345_H_ */
diff --git a/drivers/iio/accel/adxl345_core.c b/drivers/iio/accel/adxl345_core.c
index 0f34c349aa1e..315a408115b3 100644
--- a/drivers/iio/accel/adxl345_core.c
+++ b/drivers/iio/accel/adxl345_core.c
@@ -8,6 +8,7 @@
  */
 
 #include <linux/module.h>
+#include <linux/property.h>
 #include <linux/regmap.h>
 
 #include <linux/iio/iio.h>
@@ -213,14 +214,16 @@ static void adxl345_powerdown(void *regmap)
 	regmap_write(regmap, ADXL345_REG_POWER_CTL, ADXL345_POWER_CTL_STANDBY);
 }
 
-int adxl345_core_probe(struct device *dev, struct regmap *regmap, enum adxl345_device_type type)
+int adxl345_core_probe(struct device *dev, struct regmap *regmap)
 {
+	enum adxl345_device_type type;
 	struct adxl345_data *data;
 	struct iio_dev *indio_dev;
 	const char *name;
 	u32 regval;
 	int ret;
 
+	type = (uintptr_t)device_get_match_data(dev);
 	switch (type) {
 	case ADXL345:
 		name = "adxl345";
diff --git a/drivers/iio/accel/adxl345_i2c.c b/drivers/iio/accel/adxl345_i2c.c
index 2da1f73e6f03..581196e72291 100644
--- a/drivers/iio/accel/adxl345_i2c.c
+++ b/drivers/iio/accel/adxl345_i2c.c
@@ -19,19 +19,16 @@ static const struct regmap_config adxl345_i2c_regmap_config = {
 	.val_bits = 8,
 };
 
-static int adxl345_i2c_probe(struct i2c_client *client,
-			     const struct i2c_device_id *id)
+static int adxl345_i2c_probe(struct i2c_client *client)
 {
+	enum adxl345_device_type type;
 	struct regmap *regmap;
 
-	if (!id)
-		return -ENODEV;
-
 	regmap = devm_regmap_init_i2c(client, &adxl345_i2c_regmap_config);
 	if (IS_ERR(regmap))
 		return dev_err_probe(&spi->dev, PTR_ERR(regmap), "Error initializing regmap\n");
 
-	return adxl345_core_probe(&client->dev, regmap, id->driver_data);
+	return adxl345_core_probe(&client->dev, regmap);
 }
 
 static const struct i2c_device_id adxl345_i2c_id[] = {
@@ -55,7 +52,7 @@ static struct i2c_driver adxl345_i2c_driver = {
 		.name	= "adxl345_i2c",
 		.of_match_table = adxl345_of_match,
 	},
-	.probe		= adxl345_i2c_probe,
+	.probe_new	= adxl345_i2c_probe,
 	.id_table	= adxl345_i2c_id,
 };
 
diff --git a/drivers/iio/accel/adxl345_spi.c b/drivers/iio/accel/adxl345_spi.c
index 28f8d15cd257..1ea9933a909e 100644
--- a/drivers/iio/accel/adxl345_spi.c
+++ b/drivers/iio/accel/adxl345_spi.c
@@ -22,7 +22,6 @@ static const struct regmap_config adxl345_spi_regmap_config = {
 
 static int adxl345_spi_probe(struct spi_device *spi)
 {
-	const struct spi_device_id *id = spi_get_device_id(spi);
 	struct regmap *regmap;
 
 	/* Bail out if max_speed_hz exceeds 5 MHz */
@@ -33,7 +32,7 @@ static int adxl345_spi_probe(struct spi_device *spi)
 	if (IS_ERR(regmap))
 		return dev_err_probe(&spi->dev, PTR_ERR(regmap), "Error initializing regmap\n");
 
-	return adxl345_core_probe(&spi->dev, regmap, id->driver_data);
+	return adxl345_core_probe(&spi->dev, regmap);
 }
 
 static const struct spi_device_id adxl345_spi_id[] = {
-- 
2.34.1