iio:adc:axp20x: Convert from OF to generic fw / device properties
authorJonathan Cameron <Jonathan.Cameron@huawei.com>
Sun, 9 Aug 2020 14:13:05 +0000 (15:13 +0100)
committerJonathan Cameron <Jonathan.Cameron@huawei.com>
Thu, 3 Sep 2020 18:40:46 +0000 (19:40 +0100)
Whilst fairly unlikely anyone will ever use this driver with anything
other than DT, we are trying to move IIO over to the generic interfaces
where easy to do so.

In this case this involved moving to generic check on presence
of fwnode, generic device_get_match_data() and dropping the of_match_ptr
protection.  Also relevant header changes to have property.h and
mod_devicetable.h only.

Also drop the casting away of a const in favour of retaining
the const throughout.

Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Quentin Schulz <quentin.schulz@bootlin.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
drivers/iio/adc/axp20x_adc.c

index 798ff2d..3e0c023 100644 (file)
@@ -9,10 +9,10 @@
 #include <linux/interrupt.h>
 #include <linux/io.h>
 #include <linux/module.h>
-#include <linux/of.h>
-#include <linux/of_device.h>
+#include <linux/mod_devicetable.h>
 #include <linux/platform_device.h>
 #include <linux/pm_runtime.h>
+#include <linux/property.h>
 #include <linux/regmap.h>
 #include <linux/thermal.h>
 
@@ -67,7 +67,7 @@ struct axp_data;
 
 struct axp20x_adc_iio {
        struct regmap           *regmap;
-       struct axp_data         *data;
+       const struct axp_data   *data;
 };
 
 enum axp20x_adc_channel_v {
@@ -670,15 +670,15 @@ static int axp20x_probe(struct platform_device *pdev)
        info->regmap = axp20x_dev->regmap;
        indio_dev->modes = INDIO_DIRECT_MODE;
 
-       if (!pdev->dev.of_node) {
+       if (!dev_fwnode(&pdev->dev)) {
                const struct platform_device_id *id;
 
                id = platform_get_device_id(pdev);
-               info->data = (struct axp_data *)id->driver_data;
+               info->data = (const struct axp_data *)id->driver_data;
        } else {
                struct device *dev = &pdev->dev;
 
-               info->data = (struct axp_data *)of_device_get_match_data(dev);
+               info->data = device_get_match_data(dev);
        }
 
        indio_dev->name = platform_get_device_id(pdev)->name;
@@ -742,7 +742,7 @@ static int axp20x_remove(struct platform_device *pdev)
 static struct platform_driver axp20x_adc_driver = {
        .driver = {
                .name = "axp20x-adc",
-               .of_match_table = of_match_ptr(axp20x_adc_of_match),
+               .of_match_table = axp20x_adc_of_match,
        },
        .id_table = axp20x_adc_id_match,
        .probe = axp20x_probe,