linux-kernel - [PATCH 1/1] Input: ads7846

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Date: Wed, 19 Jun 2024 14:27:02 +0200
From: Alexander Stein <alexander.stein@...tq-group.com>
To: Dmitry Torokhov <dmitry.torokhov@...il.com>
Cc: Alexander Stein <alexander.stein@...tq-group.com>,
	linux-input@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH 1/1] Input: ads7846 - Use spi_device_id table

As the driver supports more devices over time the single MODULE_ALIAS
is complete and raises several warnings:
SPI driver ads7846 has no spi_device_id for ti,tsc2046
SPI driver ads7846 has no spi_device_id for ti,ads7843
SPI driver ads7846 has no spi_device_id for ti,ads7845
SPI driver ads7846 has no spi_device_id for ti,ads7873

Fix this by adding a spi_device_id table and removing the manual
MODULE_ALIAS.

Signed-off-by: Alexander Stein <alexander.stein@...tq-group.com>
---
 drivers/input/touchscreen/ads7846.c | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/drivers/input/touchscreen/ads7846.c b/drivers/input/touchscreen/ads7846.c
index d2bbb436a77df..4d13db13b9e57 100644
--- a/drivers/input/touchscreen/ads7846.c
+++ b/drivers/input/touchscreen/ads7846.c
@@ -1111,6 +1111,16 @@ static const struct of_device_id ads7846_dt_ids[] = {
 };
 MODULE_DEVICE_TABLE(of, ads7846_dt_ids);
 
+static const struct spi_device_id ads7846_spi_ids[] = {
+	{ "tsc2046", 7846 },
+	{ "ads7843", 7843 },
+	{ "ads7845", 7845 },
+	{ "ads7846", 7846 },
+	{ "ads7873", 7873 },
+	{ },
+};
+MODULE_DEVICE_TABLE(spi, ads7846_spi_ids);
+
 static const struct ads7846_platform_data *ads7846_get_props(struct device *dev)
 {
 	struct ads7846_platform_data *pdata;
@@ -1386,10 +1396,10 @@ static struct spi_driver ads7846_driver = {
 	},
 	.probe		= ads7846_probe,
 	.remove		= ads7846_remove,
+	.id_table	= ads7846_spi_ids,
 };
 
 module_spi_driver(ads7846_driver);
 
 MODULE_DESCRIPTION("ADS7846 TouchScreen Driver");
 MODULE_LICENSE("GPL");
-MODULE_ALIAS("spi:ads7846");
-- 
2.34.1