linux-kernel - [PATCH] spidev: Enable the Liebherr's BK4 board to work with spidev driver

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Date:   Fri, 28 Sep 2018 00:31:52 +0200
From:   Lukasz Majewski <lukma@...x.de>
To:     Mark Brown <broonie@...nel.org>
Cc:     Shawn Guo <shawnguo@...nel.org>, Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>, linux-spi@...r.kernel.org,
        linux-kernel@...r.kernel.org, Lukasz Majewski <lukma@...x.de>
Subject: [PATCH] spidev: Enable the Liebherr's BK4 board to work with spidev driver

With this commit the DSPI driver on the BK4 board can be used for SPI
transmission managed from user space (via /dev/spidev0.0).

Example usage/testing:
insmod ./spi-fsl-dspi.ko
./spidev_test -D /dev/spidev0.0 -s 3000000 -v -H -b 8 -p "\xCC\x11\x22\x74"

Signed-off-by: Lukasz Majewski <lukma@...x.de>
---
 drivers/spi/spidev.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/spi/spidev.c b/drivers/spi/spidev.c
index cda10719d1d1..07f4d05563ea 100644
--- a/drivers/spi/spidev.c
+++ b/drivers/spi/spidev.c
@@ -669,6 +669,7 @@ static const struct of_device_id spidev_dt_ids[] = {
 	{ .compatible = "lineartechnology,ltc2488" },
 	{ .compatible = "ge,achc" },
 	{ .compatible = "semtech,sx1301" },
+	{ .compatible = "lwn,bk4" },
 	{},
 };
 MODULE_DEVICE_TABLE(of, spidev_dt_ids);
-- 
2.11.0