linux-kernel - [PATCH 5.14 123/151] spi: spidev: Add SPI ID table

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Date:   Mon, 18 Oct 2021 15:25:02 +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, Mark Brown <broonie@...nel.org>
Subject: [PATCH 5.14 123/151] spi: spidev: Add SPI ID table

From: Mark Brown <broonie@...nel.org>

commit 6840615f85f6046039ebc4989870ddb12892b7fc upstream.

Currently autoloading for SPI devices does not use the DT ID table, it uses
SPI modalises. Supporting OF modalises is going to be difficult if not
impractical, an attempt was made but has been reverted, so ensure that
module autoloading works for this driver by adding an id_table listing the
SPI IDs for everything.

Fixes: 96c8395e2166 ("spi: Revert modalias changes")
Signed-off-by: Mark Brown <broonie@...nel.org>
Link: https://lore.kernel.org/r/20210923170023.1683-1-broonie@kernel.org
Signed-off-by: Mark Brown <broonie@...nel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 drivers/spi/spidev.c |   14 ++++++++++++++
 1 file changed, 14 insertions(+)

--- a/drivers/spi/spidev.c
+++ b/drivers/spi/spidev.c
@@ -673,6 +673,19 @@ static const struct file_operations spid
 
 static struct class *spidev_class;
 
+static const struct spi_device_id spidev_spi_ids[] = {
+	{ .name = "dh2228fv" },
+	{ .name = "ltc2488" },
+	{ .name = "sx1301" },
+	{ .name = "bk4" },
+	{ .name = "dhcom-board" },
+	{ .name = "m53cpld" },
+	{ .name = "spi-petra" },
+	{ .name = "spi-authenta" },
+	{},
+};
+MODULE_DEVICE_TABLE(spi, spidev_spi_ids);
+
 #ifdef CONFIG_OF
 static const struct of_device_id spidev_dt_ids[] = {
 	{ .compatible = "rohm,dh2228fv" },
@@ -819,6 +832,7 @@ static struct spi_driver spidev_spi_driv
 	},
 	.probe =	spidev_probe,
 	.remove =	spidev_remove,
+	.id_table =	spidev_spi_ids,
 
 	/* NOTE:  suspend/resume methods are not necessary here.
 	 * We don't do anything except pass the requests to/from