Merge branch 'for-next/misc'

3 files changed, 72 insertions, 0 deletions

diff --git a/arch/sandbox/board/Makefile b/arch/sandbox/board/Makefile
index c504c967de..ffb1dbc21e 100644
--- a/arch/sandbox/board/Makefile
+++ b/arch/sandbox/board/Makefile
@@ -7,5 +7,6 @@ obj-y += dtb.o
 obj-y += power.o
 obj-y += dev-random.o
 obj-y += watchdog.o
+obj-$(CONFIG_LED) += led.o
 
 extra-y += barebox.lds
diff --git a/arch/sandbox/board/led.c b/arch/sandbox/board/led.c
new file mode 100644
index 0000000000..b7ab81112b
--- /dev/null
+++ b/arch/sandbox/board/led.c
@@ -0,0 +1,67 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+
+#include <common.h>
+#include <init.h>
+#include <led.h>
+#include <mach/linux.h>
+#include <of.h>
+
+static struct sandbox_led {
+	struct led led;
+	bool active;
+} sandbox_led;
+
+static inline void terminal_puts(const char *s)
+{
+	linux_write(1, s, strlen(s));
+}
+
+static void sandbox_led_set(struct led *led, unsigned int brightness)
+{
+	terminal_puts("\x1b]2;barebox ");
+	while (brightness--)
+		terminal_puts(".");
+	terminal_puts("\a");
+
+	sandbox_led.active = true;
+}
+
+static int sandbox_led_of_probe(struct device_d *dev)
+{
+	struct device_node *np = dev->device_node;
+	int ret;
+
+	if (sandbox_led.led.set)
+		return -EBUSY;
+
+	sandbox_led.led.name = xstrdup(np->name);
+	sandbox_led.led.max_value = 5;
+	sandbox_led.led.set = sandbox_led_set;
+
+	ret = led_register(&sandbox_led.led);
+	if (ret)
+		return ret;
+
+	led_of_parse_trigger(&sandbox_led.led, np);
+
+	return 0;
+}
+
+static void sandbox_led_of_remove(struct device_d *dev)
+{
+	if (sandbox_led.active)
+		sandbox_led_set(NULL, 0);
+}
+
+static struct of_device_id sandbox_led_of_ids[] = {
+	{ .compatible = "barebox,sandbox-led", },
+	{ }
+};
+
+static struct driver_d sandbox_led_of_driver = {
+	.name  = "sandbox-led",
+	.probe = sandbox_led_of_probe,
+	.remove = sandbox_led_of_remove,
+	.of_compatible = sandbox_led_of_ids,
+};
+device_platform_driver(sandbox_led_of_driver);
diff --git a/arch/sandbox/dts/sandbox.dts b/arch/sandbox/dts/sandbox.dts
index ef1fa7b866..e99986bb90 100644
--- a/arch/sandbox/dts/sandbox.dts
+++ b/arch/sandbox/dts/sandbox.dts
@@ -98,4 +98,8 @@
 	sound {
 		compatible = "barebox,sandbox-sound";
 	};
+
+	led {
+		compatible = "barebox,sandbox-led";
+	};
 };