linux-kernel - [PATCH] mmc: spi: Add device-tree SPI IDs

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Date:   Mon, 15 Nov 2021 11:38:13 +0000
From:   Jon Hunter <jonathanh@...dia.com>
To:     Ulf Hansson <ulf.hansson@...aro.org>
CC:     <linux-mmc@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <linux-tegra@...r.kernel.org>, Mark Brown <broonie@...nel.org>,
        Jon Hunter <jonathanh@...dia.com>
Subject: [PATCH] mmc: spi: Add device-tree SPI IDs

Commit 5fa6863ba692 ("spi: Check we have a spi_device_id for each DT
compatible") added a test to check that every SPI driver has a
spi_device_id for each DT compatiable string defined by the driver
and warns if the spi_device_id is missing. The spi_device_id is
missing for the MMC SPI driver and the following warning is now seen.

 WARNING KERN SPI driver mmc_spi has no spi_device_id for mmc-spi-slot

Fix this by adding the necessary spi_device_id.

Signed-off-by: Jon Hunter <jonathanh@...dia.com>
---
 drivers/mmc/host/mmc_spi.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/mmc/host/mmc_spi.c b/drivers/mmc/host/mmc_spi.c
index f4c8e1a61f53..b431cdd27353 100644
--- a/drivers/mmc/host/mmc_spi.c
+++ b/drivers/mmc/host/mmc_spi.c
@@ -1514,6 +1514,12 @@ static int mmc_spi_remove(struct spi_device *spi)
 	return 0;
 }
 
+static const struct spi_device_id mmc_spi_dev_ids[] = {
+	{ "mmc-spi-slot"},
+	{ },
+};
+MODULE_DEVICE_TABLE(spi, mmc_spi_dev_ids);
+
 static const struct of_device_id mmc_spi_of_match_table[] = {
 	{ .compatible = "mmc-spi-slot", },
 	{},
@@ -1525,6 +1531,7 @@ static struct spi_driver mmc_spi_driver = {
 		.name =		"mmc_spi",
 		.of_match_table = mmc_spi_of_match_table,
 	},
+	.id_table =	mmc_spi_dev_ids,
 	.probe =	mmc_spi_probe,
 	.remove =	mmc_spi_remove,
 };
-- 
2.25.1