iio: imu: adis16480: 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@linux.intel.com>
Reviewed-by: Nuno Sá <nuno.sa@analog.com>
Tested-by: Nuno Sá <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20220414131559.24694-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

diff --git a/drivers/iio/imu/adis16480.c b/drivers/iio/imu/adis16480.c
index 44bbe3d..68eed08 100644 (file)
--- a/drivers/iio/imu/adis16480.c
+++ b/drivers/iio/imu/adis16480.c
@@ -7,14 +7,16 @@
 
 #include <linux/clk.h>
 #include <linux/bitfield.h>
-#include <linux/of_irq.h>
 #include <linux/interrupt.h>
+#include <linux/irq.h>
 #include <linux/math.h>
 #include <linux/device.h>
 #include <linux/kernel.h>
 #include <linux/spi/spi.h>
+#include <linux/mod_devicetable.h>
 #include <linux/module.h>
 #include <linux/lcm.h>
+#include <linux/property.h>
 #include <linux/swab.h>
 #include <linux/crc32.h>
 
@@ -1239,9 +1241,10 @@ static int adis16480_enable_irq(struct adis *adis, bool enable)
        return __adis_write_reg_16(adis, ADIS16480_REG_FNCTIO_CTRL, val);
 }
 
-static int adis16480_config_irq_pin(struct device_node *of_node,
-                                   struct adis16480 *st)
+static int adis16480_config_irq_pin(struct adis16480 *st)
 {
+       struct device *dev = &st->adis.spi->dev;
+       struct fwnode_handle *fwnode = dev_fwnode(dev);
        struct irq_data *desc;
        enum adis16480_int_pin pin;
        unsigned int irq_type;
@@ -1267,7 +1270,7 @@ static int adis16480_config_irq_pin(struct device_node *of_node,
         */
        pin = ADIS16480_PIN_DIO1;
        for (i = 0; i < ARRAY_SIZE(adis16480_int_pin_names); i++) {
-               irq = of_irq_get_byname(of_node, adis16480_int_pin_names[i]);
+               irq = fwnode_irq_get_byname(fwnode, adis16480_int_pin_names[i]);
                if (irq > 0) {
                        pin = i;
                        break;
@@ -1295,15 +1298,15 @@ static int adis16480_config_irq_pin(struct device_node *of_node,
        return adis_write_reg_16(&st->adis, ADIS16480_REG_FNCTIO_CTRL, val);
 }
 
-static int adis16480_of_get_ext_clk_pin(struct adis16480 *st,
-                                       struct device_node *of_node)
+static int adis16480_fw_get_ext_clk_pin(struct adis16480 *st)
 {
+       struct device *dev = &st->adis.spi->dev;
        const char *ext_clk_pin;
        enum adis16480_int_pin pin;
        int i;
 
        pin = ADIS16480_PIN_DIO2;
-       if (of_property_read_string(of_node, "adi,ext-clk-pin", &ext_clk_pin))
+       if (device_property_read_string(dev, "adi,ext-clk-pin", &ext_clk_pin))
                goto clk_input_not_found;
 
        for (i = 0; i < ARRAY_SIZE(adis16480_int_pin_names); i++) {
@@ -1317,9 +1320,7 @@ clk_input_not_found:
        return pin;
 }
 
-static int adis16480_ext_clk_config(struct adis16480 *st,
-                                   struct device_node *of_node,
-                                   bool enable)
+static int adis16480_ext_clk_config(struct adis16480 *st, bool enable)
 {
        unsigned int mode, mask;
        enum adis16480_int_pin pin;
@@ -1330,7 +1331,7 @@ static int adis16480_ext_clk_config(struct adis16480 *st,
        if (ret)
                return ret;
 
-       pin = adis16480_of_get_ext_clk_pin(st, of_node);
+       pin = adis16480_fw_get_ext_clk_pin(st);
        /*
         * Each DIOx pin supports only one function at a time. When a single pin
         * has two assignments, the enable bit for a lower priority function
@@ -1438,7 +1439,7 @@ static int adis16480_probe(struct spi_device *spi)
                        return ret;
        }
 
-       ret = adis16480_config_irq_pin(spi->dev.of_node, st);
+       ret = adis16480_config_irq_pin(st);
        if (ret)
                return ret;
 
@@ -1447,7 +1448,7 @@ static int adis16480_probe(struct spi_device *spi)
                return ret;
 
        if (!IS_ERR_OR_NULL(st->ext_clk)) {
-               ret = adis16480_ext_clk_config(st, spi->dev.of_node, true);
+               ret = adis16480_ext_clk_config(st, true);
                if (ret)
                        return ret;