linux-kernel - [PATCH 5.4 042/120] iio:adc:mcp3911: Switch to generic firmware properties.

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Message-Id: <20220926100752.250813953@linuxfoundation.org>
Date:   Mon, 26 Sep 2022 12:11:15 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org,
        Jonathan Cameron <Jonathan.Cameron@...wei.com>,
        Andy Shevchenko <andy.shevchenko@...il.com>,
        Kent Gustavsson <kent@...oris.se>,
        Marcus Folkesson <marcus.folkesson@...il.com>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.4 042/120] iio:adc:mcp3911: Switch to generic firmware properties.

From: Jonathan Cameron <Jonathan.Cameron@...wei.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@...wei.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@...il.com>
Cc: Kent Gustavsson <kent@...oris.se>
Reviewed-by: Marcus Folkesson <marcus.folkesson@...il.com>
Stable-dep-of: cfbd76d5c9c4 ("iio: adc: mcp3911: correct "microchip,device-addr" property")
Signed-off-by: Sasha Levin <sashal@...nel.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 4e2e8e819b1e..cd8b1bab9cf0 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