From: David Lechner <dlechner@baylibre.com>
Date: Sat, 28 Jun 2025 16:16:51 +0000 (-0500)
Subject: iio: adc: ad7124: Use separate structures rather than array for chip info
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=5eef68d672b777e930df0fef1a970e9aacbce343;p=thirdparty%2Fkernel%2Fstable.git

iio: adc: ad7124: Use separate structures rather than array for chip info

Change the ad7124 driver to use individual chip info structures instead
of an array. This reduces the verbosity of the code. Also, the data is
now const as it should have been in the first place.

Signed-off-by: David Lechner <dlechner@baylibre.com>
Acked-by: Uwe Kleine-König <u.kleine-koenig@baylibre.com>
Link: https://patch.msgid.link/20250628-iio-const-data-5-v1-1-9e56c2f77979@baylibre.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
---

diff --git a/drivers/iio/adc/ad7124.c b/drivers/iio/adc/ad7124.c
index 92596f15e797..9808df2e9242 100644
--- a/drivers/iio/adc/ad7124.c
+++ b/drivers/iio/adc/ad7124.c
@@ -94,11 +94,6 @@
 
 /* AD7124 input sources */
 
-enum ad7124_ids {
-	ID_AD7124_4,
-	ID_AD7124_8,
-};
-
 enum ad7124_ref_sel {
 	AD7124_REFIN1,
 	AD7124_REFIN2,
@@ -193,17 +188,16 @@ struct ad7124_state {
 	DECLARE_KFIFO(live_cfgs_fifo, struct ad7124_channel_config *, AD7124_MAX_CONFIGS);
 };
 
-static struct ad7124_chip_info ad7124_chip_info_tbl[] = {
-	[ID_AD7124_4] = {
-		.name = "ad7124-4",
-		.chip_id = AD7124_ID_DEVICE_ID_AD7124_4,
-		.num_inputs = 8,
-	},
-	[ID_AD7124_8] = {
-		.name = "ad7124-8",
-		.chip_id = AD7124_ID_DEVICE_ID_AD7124_8,
-		.num_inputs = 16,
-	},
+static const struct ad7124_chip_info ad7124_4_chip_info = {
+	.name = "ad7124-4",
+	.chip_id = AD7124_ID_DEVICE_ID_AD7124_4,
+	.num_inputs = 8,
+};
+
+static const struct ad7124_chip_info ad7124_8_chip_info = {
+	.name = "ad7124-8",
+	.chip_id = AD7124_ID_DEVICE_ID_AD7124_8,
+	.num_inputs = 16,
 };
 
 static int ad7124_find_closest_match(const int *array,
@@ -1341,17 +1335,15 @@ static int ad7124_probe(struct spi_device *spi)
 }
 
 static const struct of_device_id ad7124_of_match[] = {
-	{ .compatible = "adi,ad7124-4",
-		.data = &ad7124_chip_info_tbl[ID_AD7124_4], },
-	{ .compatible = "adi,ad7124-8",
-		.data = &ad7124_chip_info_tbl[ID_AD7124_8], },
+	{ .compatible = "adi,ad7124-4", .data = &ad7124_4_chip_info },
+	{ .compatible = "adi,ad7124-8", .data = &ad7124_8_chip_info },
 	{ }
 };
 MODULE_DEVICE_TABLE(of, ad7124_of_match);
 
 static const struct spi_device_id ad71124_ids[] = {
-	{ "ad7124-4", (kernel_ulong_t)&ad7124_chip_info_tbl[ID_AD7124_4] },
-	{ "ad7124-8", (kernel_ulong_t)&ad7124_chip_info_tbl[ID_AD7124_8] },
+	{ "ad7124-4", (kernel_ulong_t)&ad7124_4_chip_info },
+	{ "ad7124-8", (kernel_ulong_t)&ad7124_8_chip_info },
 	{ }
 };
 MODULE_DEVICE_TABLE(spi, ad71124_ids);