[PATCH v3 2/2] fpga: ts73xx-fpga: add OF match table for device tree probing

The ts73xx-fpga driver currently only matches by platform device name,
which prevents it from being probed when the device is described in a
device tree. Add an of_device_id table so the driver can match against
the "technologic,ts7300-fpga" compatible string.

The TS-7350 and TS-7390 use different FPGAs with a different programming
interface, so while the driver is named "ts73xx-fpga", it doesn't apply
to them.

Signed-off-by: Phil Pemberton <[email protected]>
Reviewed-by: Florian Fainelli <[email protected]>
---
 drivers/fpga/ts73xx-fpga.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/drivers/fpga/ts73xx-fpga.c b/drivers/fpga/ts73xx-fpga.c
index 4e1d2a4d3df4..3460e4809f86 100644
--- a/drivers/fpga/ts73xx-fpga.c
+++ b/drivers/fpga/ts73xx-fpga.c
@@ -11,6 +11,7 @@
 #include <linux/delay.h>
 #include <linux/io.h>
 #include <linux/module.h>
+#include <linux/of.h>
 #include <linux/platform_device.h>
 #include <linux/string.h>
 #include <linux/iopoll.h>
@@ -119,9 +120,17 @@ static int ts73xx_fpga_probe(struct platform_device *pdev)
 	return PTR_ERR_OR_ZERO(mgr);
 }
 
+static const struct of_device_id ts73xx_fpga_of_match[] = {
+	{ .compatible = "technologic,ts7300-fpga" },
+	{},
+};
+
+MODULE_DEVICE_TABLE(of, ts73xx_fpga_of_match);
+
 static struct platform_driver ts73xx_fpga_driver = {
 	.driver	= {
 		.name	= "ts73xx-fpga-mgr",
+		.of_match_table = ts73xx_fpga_of_match,
 	},
 	.probe	= ts73xx_fpga_probe,
 };
-- 
2.43.0