linux-kernel - [PATCH 5.15 439/779] mtd: dataflash: Add SPI ID table

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Date:   Mon, 15 Aug 2022 20:01:23 +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>,
        Miquel Raynal <miquel.raynal@...tlin.com>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.15 439/779] mtd: dataflash: Add SPI ID table

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

[ Upstream commit ac4f83482afbfd927d0fe118151b747cf175e724 ]

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>
Signed-off-by: Miquel Raynal <miquel.raynal@...tlin.com>
Link: https://lore.kernel.org/linux-mtd/20220620152313.708768-1-broonie@kernel.org
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/mtd/devices/mtd_dataflash.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/drivers/mtd/devices/mtd_dataflash.c b/drivers/mtd/devices/mtd_dataflash.c
index 2b317ed6c103..9c714c982c6e 100644
--- a/drivers/mtd/devices/mtd_dataflash.c
+++ b/drivers/mtd/devices/mtd_dataflash.c
@@ -112,6 +112,13 @@ static const struct of_device_id dataflash_dt_ids[] = {
 MODULE_DEVICE_TABLE(of, dataflash_dt_ids);
 #endif
 
+static const struct spi_device_id dataflash_spi_ids[] = {
+	{ .name = "at45", },
+	{ .name = "dataflash", },
+	{ /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(spi, dataflash_spi_ids);
+
 /* ......................................................................... */
 
 /*
@@ -938,6 +945,7 @@ static struct spi_driver dataflash_driver = {
 
 	.probe		= dataflash_probe,
 	.remove		= dataflash_remove,
+	.id_table	= dataflash_spi_ids,
 
 	/* FIXME:  investigate suspend and resume... */
 };
-- 
2.35.1