Add reset driver and consumer for debugging it

1 files changed, 36 insertions, 0 deletions

diff --git a/simple-reset-consumer.c b/simple-reset-consumer.c
new file mode 100644
index 0000000..21c0da0
--- /dev/null
+++ b/simple-reset-consumer.c
@@ -0,0 +1,36 @@
+#include <linux/device.h>
+#include <linux/module.h>
+#include <linux/of_platform.h>
+#include <linux/regmap.h>
+#include <linux/reset.h>
+
+static int simple_reset_consumer_probe(struct platform_device *pdev)
+{
+	struct reset_control *reset = devm_reset_control_get(&pdev->dev, NULL);
+	if (IS_ERR(reset))
+		return PTR_ERR(reset);
+
+	dev_info(&pdev->dev, "firing reset\n");
+	reset_control_reset(reset);
+
+	return 0;
+}
+
+static struct of_device_id simple_reset_consumer_of_match[] = {
+	{ .compatible = "david,simple-reset-consumer" },
+	{}
+};
+MODULE_DEVICE_TABLE(of, simple_reset_consumer_of_match);
+
+static struct platform_driver simple_reset_consumer = {
+	.driver = {
+		.name = "simple-reset-consumer",
+		.of_match_table = simple_reset_consumer_of_match,
+	},
+	.probe = simple_reset_consumer_probe
+};
+module_platform_driver(simple_reset_consumer);
+
+MODULE_AUTHOR("David Phillips <david@yeah.nah.nz>");
+MODULE_DESCRIPTION("Simple reset consumer for testing/demoing reset controllers");
+MODULE_LICENSE("GPL v2");