[PATCH 5.15 011/148] iio:adc:mcp3911: Switch to generic firmware properties.

Greg Kroah-Hartman
2022-09-26T11:08:21Z

From: Jonathan Cameron <Jonathan.Cameron@huawei.com>

[ Upstream commit 4efc1c614d334883cce09c38aa3fe74d3fb0bbf0 ]

This allows use of the driver with other types of firmware such as ACPI
PRP0001 based probing.

Also part of a general attempt to remove direct use of of_ specific
accessors from IIO.

Added an include for mod_devicetable.h whilst here to cover the
struct of_device_id definition.

Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Cc: Kent Gustavsson <kent@minoris.se>
Reviewed-by: Marcus Folkesson <marcus.folkesson@gmail.com>
Stable-dep-of: cfbd76d5c9c4 ("iio: adc: mcp3911: correct "microchip,device-addr" property")
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/iio/adc/mcp3911.c | 9 ++++++---
1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/drivers/iio/adc/mcp3911.c b/drivers/iio/adc/mcp3911.c
index 65278270a75c..608842632925 100644
--- a/drivers/iio/adc/mcp3911.c
+++ b/drivers/iio/adc/mcp3911.c
@@ -10,6 +10,8 @@
#include <linux/err.h>
#include <linux/iio/iio.h>
#include <linux/module.h>
+#include <linux/mod_devicetable.h>
+#include <linux/property.h>
#include <linux/regulator/consumer.h>
#include <linux/spi/spi.h>

@@ -209,12 +211,13 @@ static const struct iio_info mcp3911_info = {
.write_raw = mcp3911_write_raw,
};

-static int mcp3911_config(struct mcp3911 *adc, struct device_node *of_node)
+static int mcp3911_config(struct mcp3911 *adc)
{
+ struct device *dev = &adc->spi->dev;
u32 configreg;
int ret;

- of_property_read_u32(of_node, "device-addr", &adc->dev_addr);
+ device_property_read_u32(dev, "device-addr", &adc->dev_addr);
if (adc->dev_addr > 3) {
dev_err(&adc->spi->dev,
"invalid device address (%i). Must be in range 0-3.\n",
@@ -298,7 +301,7 @@ static int mcp3911_probe(struct spi_device *spi)
}
}

- ret = mcp3911_config(adc, spi->dev.of_node);
+ ret = mcp3911_config(adc);
if (ret)
goto clk_disable;

--
2.35.1