iio:potentiometer:max5481: Drop of_match_ptr and CONFIG_OF protections.

These prevent use of this driver with ACPI via PRP0001 and are
an example of an anti pattern I'm trying to remove from IIO.
Whilst this driver has an ACPI binding, it is not of a form
that is valid under ACPI so will be dropped shortly.

Also switch to device_get_match_data() and switch headers.

Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Cc: Maury Anderson <maury.anderson@rockwellcollins.com>
Cc: Matthew Weber <matthew.weber@rockwellcollins.com>
Cc: Slawomir Stepien <sst@poczta.fm>
Link: https://lore.kernel.org/r/20200910173242.621168-5-jic23@kernel.org

diff --git a/drivers/iio/potentiometer/max5481.c b/drivers/iio/potentiometer/max5481.c
index 5f598818979667fcf3a39b0e0f7ddcfda8ea17b4..6d1e1a57cba154782ea6e83c70f1b76d4f9c273a 100644 (file)
--- a/drivers/iio/potentiometer/max5481.c
+++ b/drivers/iio/potentiometer/max5481.c
@@ -11,8 +11,8 @@
 #include <linux/iio/iio.h>
 #include <linux/iio/sysfs.h>
 #include <linux/module.h>
-#include <linux/of.h>
-#include <linux/of_device.h>
+#include <linux/mod_devicetable.h>
+#include <linux/property.h>
 #include <linux/spi/spi.h>
 
 /* write wiper reg */
@@ -117,7 +117,6 @@ static const struct iio_info max5481_info = {
        .write_raw = max5481_write_raw,
 };
 
-#if defined(CONFIG_OF)
 static const struct of_device_id max5481_match[] = {
        { .compatible = "maxim,max5481", .data = &max5481_cfg[max5481] },
        { .compatible = "maxim,max5482", .data = &max5481_cfg[max5482] },
@@ -126,7 +125,6 @@ static const struct of_device_id max5481_match[] = {
        { }
 };
 MODULE_DEVICE_TABLE(of, max5481_match);
-#endif
 
 static int max5481_probe(struct spi_device *spi)
 {
@@ -144,7 +142,7 @@ static int max5481_probe(struct spi_device *spi)
 
        data->spi = spi;
 
-       data->cfg = of_device_get_match_data(&spi->dev);
+       data->cfg = device_get_match_data(&spi->dev);
        if (!data->cfg)
                data->cfg = &max5481_cfg[id->driver_data];
 
@@ -198,7 +196,7 @@ MODULE_DEVICE_TABLE(acpi, max5481_acpi_match);
 static struct spi_driver max5481_driver = {
        .driver = {
                .name  = "max5481",
-               .of_match_table = of_match_ptr(max5481_match),
+               .of_match_table = max5481_match,
                .acpi_match_table = ACPI_PTR(max5481_acpi_match),
        },
        .probe = max5481_probe,