linux-kernel - [PATCH v2 1/3] iio: magnetometer: yamaha-yas530: Use pointers as driver data

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Date:   Wed, 31 Aug 2022 17:15:28 +0300
From:   Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To:     Jonathan Cameron <Jonathan.Cameron@...wei.com>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Linus Walleij <linus.walleij@...aro.org>,
        Jakob Hauser <jahau@...ketmail.com>, linux-iio@...r.kernel.org,
        linux-kernel@...r.kernel.org
Cc:     Jonathan Cameron <jic23@...nel.org>,
        Lars-Peter Clausen <lars@...afoo.de>
Subject: [PATCH v2 1/3] iio: magnetometer: yamaha-yas530: Use pointers as driver data

Unify ID tables to use pointers for driver data. It will allow
to simplify the driver later on.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
---
v2: left ID fallback in place (Jonathan)
 drivers/iio/magnetometer/yamaha-yas530.c | 23 +++++++++++++----------
 1 file changed, 13 insertions(+), 10 deletions(-)

diff --git a/drivers/iio/magnetometer/yamaha-yas530.c b/drivers/iio/magnetometer/yamaha-yas530.c
index 026f71e524f3..58f527cfde07 100644
--- a/drivers/iio/magnetometer/yamaha-yas530.c
+++ b/drivers/iio/magnetometer/yamaha-yas530.c
@@ -32,6 +32,7 @@
 #include <linux/mod_devicetable.h>
 #include <linux/mutex.h>
 #include <linux/pm_runtime.h>
+#include <linux/property.h>
 #include <linux/regmap.h>
 #include <linux/regulator/consumer.h>
 #include <linux/random.h>
@@ -1437,8 +1438,10 @@ static int yas5xx_probe(struct i2c_client *i2c,
 		goto assert_reset;
 	}
 
-	yas5xx->chip_info = &yas5xx_chip_info_tbl[id->driver_data];
-	ci = yas5xx->chip_info;
+	ci = device_get_match_data(dev);
+	if (!ci)
+		ci = (const struct yas5xx_chip_info *)id->driver_data;
+	yas5xx->chip_info = ci;
 
 	ret = regmap_read(yas5xx->map, YAS5XX_DEVICE_ID, &id_check);
 	if (ret)
@@ -1583,19 +1586,19 @@ static DEFINE_RUNTIME_DEV_PM_OPS(yas5xx_dev_pm_ops, yas5xx_runtime_suspend,
 				 yas5xx_runtime_resume, NULL);
 
 static const struct i2c_device_id yas5xx_id[] = {
-	{"yas530", yas530 },
-	{"yas532", yas532 },
-	{"yas533", yas533 },
-	{"yas537", yas537 },
+	{"yas530", (kernel_ulong_t)&yas5xx_chip_info_tbl[yas530] },
+	{"yas532", (kernel_ulong_t)&yas5xx_chip_info_tbl[yas532] },
+	{"yas533", (kernel_ulong_t)&yas5xx_chip_info_tbl[yas533] },
+	{"yas537", (kernel_ulong_t)&yas5xx_chip_info_tbl[yas537] },
 	{}
 };
 MODULE_DEVICE_TABLE(i2c, yas5xx_id);
 
 static const struct of_device_id yas5xx_of_match[] = {
-	{ .compatible = "yamaha,yas530", },
-	{ .compatible = "yamaha,yas532", },
-	{ .compatible = "yamaha,yas533", },
-	{ .compatible = "yamaha,yas537", },
+	{ .compatible = "yamaha,yas530", &yas5xx_chip_info_tbl[yas530] },
+	{ .compatible = "yamaha,yas532", &yas5xx_chip_info_tbl[yas532] },
+	{ .compatible = "yamaha,yas533", &yas5xx_chip_info_tbl[yas533] },
+	{ .compatible = "yamaha,yas537", &yas5xx_chip_info_tbl[yas537] },
 	{}
 };
 MODULE_DEVICE_TABLE(of, yas5xx_of_match);
-- 
2.35.1