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-rw-r--r--drivers/leds/leds-hp6xx.c78
1 files changed, 78 insertions, 0 deletions
diff --git a/drivers/leds/leds-hp6xx.c b/drivers/leds/leds-hp6xx.c
new file mode 100644
index 000000000..54af9e63c
--- /dev/null
+++ b/drivers/leds/leds-hp6xx.c
@@ -0,0 +1,78 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * LED Triggers Core
+ * For the HP Jornada 620/660/680/690 handhelds
+ *
+ * Copyright 2008 Kristoffer Ericson <kristoffer.ericson@gmail.com>
+ * this driver is based on leds-spitz.c by Richard Purdie.
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/platform_device.h>
+#include <linux/leds.h>
+#include <asm/hd64461.h>
+#include <mach/hp6xx.h>
+
+static void hp6xxled_green_set(struct led_classdev *led_cdev,
+ enum led_brightness value)
+{
+ u8 v8;
+
+ v8 = inb(PKDR);
+ if (value)
+ outb(v8 & (~PKDR_LED_GREEN), PKDR);
+ else
+ outb(v8 | PKDR_LED_GREEN, PKDR);
+}
+
+static void hp6xxled_red_set(struct led_classdev *led_cdev,
+ enum led_brightness value)
+{
+ u16 v16;
+
+ v16 = inw(HD64461_GPBDR);
+ if (value)
+ outw(v16 & (~HD64461_GPBDR_LED_RED), HD64461_GPBDR);
+ else
+ outw(v16 | HD64461_GPBDR_LED_RED, HD64461_GPBDR);
+}
+
+static struct led_classdev hp6xx_red_led = {
+ .name = "hp6xx:red",
+ .default_trigger = "hp6xx-charge",
+ .brightness_set = hp6xxled_red_set,
+ .flags = LED_CORE_SUSPENDRESUME,
+};
+
+static struct led_classdev hp6xx_green_led = {
+ .name = "hp6xx:green",
+ .default_trigger = "disk-activity",
+ .brightness_set = hp6xxled_green_set,
+ .flags = LED_CORE_SUSPENDRESUME,
+};
+
+static int hp6xxled_probe(struct platform_device *pdev)
+{
+ int ret;
+
+ ret = devm_led_classdev_register(&pdev->dev, &hp6xx_red_led);
+ if (ret < 0)
+ return ret;
+
+ return devm_led_classdev_register(&pdev->dev, &hp6xx_green_led);
+}
+
+static struct platform_driver hp6xxled_driver = {
+ .probe = hp6xxled_probe,
+ .driver = {
+ .name = "hp6xx-led",
+ },
+};
+
+module_platform_driver(hp6xxled_driver);
+
+MODULE_AUTHOR("Kristoffer Ericson <kristoffer.ericson@gmail.com>");
+MODULE_DESCRIPTION("HP Jornada 6xx LED driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:hp6xx-led");