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iio:adc:mcp3911: Switch to generic firmware properties.

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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>
This commit is contained in:
Jonathan Cameron 2021-12-05 17:01:36 +00:00
parent c88eba5a18
commit 4efc1c614d
1 changed files with 6 additions and 3 deletions
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9
drivers/iio/adc/mcp3911.c
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@ -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>
@ -200,12 +202,13 @@ 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",
@ -289,7 +292,7 @@ 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;