From ace9429bb58fd418f0c81d4c2835699bddf6bde6 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Thu, 11 Apr 2024 10:27:49 +0200
Subject: Adding upstream version 6.6.15.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 drivers/char/xillybus/xillybus_of.c | 86 +++++++++++++++++++++++++++++++++++++
 1 file changed, 86 insertions(+)
 create mode 100644 drivers/char/xillybus/xillybus_of.c

(limited to 'drivers/char/xillybus/xillybus_of.c')

diff --git a/drivers/char/xillybus/xillybus_of.c b/drivers/char/xillybus/xillybus_of.c
new file mode 100644
index 0000000000..e5372e45d2
--- /dev/null
+++ b/drivers/char/xillybus/xillybus_of.c
@@ -0,0 +1,86 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * linux/drivers/misc/xillybus_of.c
+ *
+ * Copyright 2011 Xillybus Ltd, http://xillybus.com
+ *
+ * Driver for the Xillybus FPGA/host framework using Open Firmware.
+ */
+
+#include <linux/module.h>
+#include <linux/device.h>
+#include <linux/slab.h>
+#include <linux/platform_device.h>
+#include <linux/of.h>
+#include <linux/err.h>
+#include "xillybus.h"
+
+MODULE_DESCRIPTION("Xillybus driver for Open Firmware");
+MODULE_AUTHOR("Eli Billauer, Xillybus Ltd.");
+MODULE_ALIAS("xillybus_of");
+MODULE_LICENSE("GPL v2");
+
+static const char xillyname[] = "xillybus_of";
+
+/* Match table for of_platform binding */
+static const struct of_device_id xillybus_of_match[] = {
+	{ .compatible = "xillybus,xillybus-1.00.a", },
+	{ .compatible = "xlnx,xillybus-1.00.a", }, /* Deprecated */
+	{}
+};
+
+MODULE_DEVICE_TABLE(of, xillybus_of_match);
+
+static int xilly_drv_probe(struct platform_device *op)
+{
+	struct device *dev = &op->dev;
+	struct xilly_endpoint *endpoint;
+	int rc;
+	int irq;
+
+	endpoint = xillybus_init_endpoint(dev);
+
+	if (!endpoint)
+		return -ENOMEM;
+
+	dev_set_drvdata(dev, endpoint);
+
+	endpoint->owner = THIS_MODULE;
+
+	endpoint->registers = devm_platform_ioremap_resource(op, 0);
+	if (IS_ERR(endpoint->registers))
+		return PTR_ERR(endpoint->registers);
+
+	irq = platform_get_irq(op, 0);
+
+	rc = devm_request_irq(dev, irq, xillybus_isr, 0, xillyname, endpoint);
+
+	if (rc) {
+		dev_err(endpoint->dev,
+			"Failed to register IRQ handler. Aborting.\n");
+		return -ENODEV;
+	}
+
+	return xillybus_endpoint_discovery(endpoint);
+}
+
+static int xilly_drv_remove(struct platform_device *op)
+{
+	struct device *dev = &op->dev;
+	struct xilly_endpoint *endpoint = dev_get_drvdata(dev);
+
+	xillybus_endpoint_remove(endpoint);
+
+	return 0;
+}
+
+static struct platform_driver xillybus_platform_driver = {
+	.probe = xilly_drv_probe,
+	.remove = xilly_drv_remove,
+	.driver = {
+		.name = xillyname,
+		.of_match_table = xillybus_of_match,
+	},
+};
+
+module_platform_driver(xillybus_platform_driver);
-- 
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