Inital pcf50606 support

3 files changed, 148 insertions, 0 deletions

diff --git a/drivers/input/misc/Kconfig b/drivers/input/misc/Kconfig
index 1acfa3a05aa..558b73f0100 100644
--- a/drivers/input/misc/Kconfig
+++ b/drivers/input/misc/Kconfig
@@ -237,6 +237,13 @@ config INPUT_PCF50633_PMU
 	 Say Y to include support for delivering  PMU events via  input
 	 layer on NXP PCF50633.
 
+config INPUT_PCF50606_PMU
+	tristate "PCF50606 PMU events"
+	depends on MFD_PCF50606
+	help
+	 Say Y to include support for delivering  PMU events via  input
+	 layer on NXP PCF50606.
+
 config INPUT_GPIO_ROTARY_ENCODER
 	tristate "Rotary encoders connected to GPIO pins"
 	depends on GPIOLIB && GENERIC_GPIO
diff --git a/drivers/input/misc/Makefile b/drivers/input/misc/Makefile
index 0d979fd4cd5..730857b6674 100644
--- a/drivers/input/misc/Makefile
+++ b/drivers/input/misc/Makefile
@@ -16,6 +16,7 @@ obj-$(CONFIG_INPUT_IXP4XX_BEEPER)	+= ixp4xx-beeper.o
 obj-$(CONFIG_INPUT_KEYSPAN_REMOTE)	+= keyspan_remote.o
 obj-$(CONFIG_INPUT_M68K_BEEP)		+= m68kspkr.o
 obj-$(CONFIG_INPUT_PCF50633_PMU)	+= pcf50633-input.o
+obj-$(CONFIG_INPUT_PCF50606_PMU)	+= pcf50606-input.o
 obj-$(CONFIG_INPUT_PCSPKR)		+= pcspkr.o
 obj-$(CONFIG_INPUT_POWERMATE)		+= powermate.o
 obj-$(CONFIG_INPUT_RB532_BUTTON)	+= rb532_button.o
diff --git a/drivers/input/misc/pcf50606-input.c b/drivers/input/misc/pcf50606-input.c
new file mode 100644
index 00000000000..044438ed662
--- /dev/null
+++ b/drivers/input/misc/pcf50606-input.c
@@ -0,0 +1,140 @@
+/* Philips PCF50606 Input Driver
+ *
+ * (C) 2006-2008 by Openmoko, Inc.
+ * Author: Balaji Rao <balajirrao@openmoko.org>
+ * All rights reserved.
+ *
+ * Broken down from monstrous PCF50606 driver mainly by
+ * Harald Welte, Matt Hsu, Andy Green and Werner Almesberger
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/device.h>
+#include <linux/platform_device.h>
+#include <linux/input.h>
+
+#include <linux/mfd/pcf50606/core.h>
+
+#define PCF50606_OOCS_ONKEY		0x01
+#define PCF50606_OOCS_EXTON	 	0x02
+
+#define PCF50606_OOCC2_ONKEYDB_NONE	0x00
+#define PCF50606_OOCC2_ONKEYDB_14ms	0x01
+#define PCF50606_OOCC2_ONKEYDB_62ms	0x02
+#define PCF50606_OOCC2_ONKEYDB_500ms	0x03
+#define PCF50606_OOCC2_EXTONDB_NONE	0x00
+#define PCF50606_OOCC2_EXTONDB_14ms	0x04
+#define PCF50606_OOCC2_EXTONDB_62ms	0x08
+#define PCF50606_OOCC2_EXTONDB_500ms	0x0c
+
+#define PCF50606_REG_OOCS 	0x01
+
+struct pcf50606_input {
+	struct pcf50606 *pcf;
+	struct input_dev *input_dev;
+};
+
+static void
+pcf50606_input_irq(int irq, void *data)
+{
+	struct pcf50606_input *input;
+	int onkey_released;
+
+	input = data;
+	onkey_released = pcf50606_reg_read(input->pcf, PCF50606_REG_OOCS) &
+						PCF50606_OOCS_ONKEY;
+
+	if (irq == PCF50606_IRQ_ONKEYF && !onkey_released)
+		input_report_key(input->input_dev, KEY_POWER, 1);
+	else if (irq == PCF50606_IRQ_ONKEYR && onkey_released)
+		input_report_key(input->input_dev, KEY_POWER, 0);
+
+	input_sync(input->input_dev);
+}
+
+static int __devinit pcf50606_input_probe(struct platform_device *pdev)
+{
+	struct pcf50606_input *input;
+	struct pcf50606_subdev_pdata *pdata = pdev->dev.platform_data;
+	struct input_dev *input_dev;
+	int ret;
+
+
+	input = kzalloc(sizeof(*input), GFP_KERNEL);
+	if (!input)
+		return -ENOMEM;
+
+	input_dev = input_allocate_device();
+	if (!input_dev) {
+		kfree(input);
+		return -ENOMEM;
+	}
+
+	platform_set_drvdata(pdev, input);
+	input->pcf = pdata->pcf;
+	input->input_dev = input_dev;
+
+	input_dev->name = "PCF50606 PMU events";
+	input_dev->id.bustype = BUS_I2C;
+	input_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_PWR);
+	set_bit(KEY_POWER, input_dev->keybit);
+
+	ret = input_register_device(input_dev);
+	if (ret) {
+		input_free_device(input_dev);
+		kfree(input);
+		return ret;
+	}
+	pcf50606_register_irq(pdata->pcf, PCF50606_IRQ_ONKEYR,
+				pcf50606_input_irq, input);
+	pcf50606_register_irq(pdata->pcf, PCF50606_IRQ_ONKEYF,
+				pcf50606_input_irq, input);
+
+	return 0;
+}
+
+static int __devexit pcf50606_input_remove(struct platform_device *pdev)
+{
+	struct pcf50606_input *input  = platform_get_drvdata(pdev);
+
+	input_unregister_device(input->input_dev);
+	pcf50606_free_irq(input->pcf, PCF50606_IRQ_ONKEYR);
+	pcf50606_free_irq(input->pcf, PCF50606_IRQ_ONKEYF);
+
+	kfree(input);
+
+	return 0;
+}
+
+static struct platform_driver pcf50606_input_driver = {
+	.driver = {
+		.name = "pcf50606-input",
+	},
+	.probe = pcf50606_input_probe,
+	.remove = __devexit_p(pcf50606_input_remove),
+};
+
+static int __init pcf50606_input_init(void)
+{
+	return platform_driver_register(&pcf50606_input_driver);
+}
+module_init(pcf50606_input_init);
+
+static void __exit pcf50606_input_exit(void)
+{
+	platform_driver_unregister(&pcf50606_input_driver);
+}
+module_exit(pcf50606_input_exit);
+
+MODULE_AUTHOR("Balaji Rao <balajirrao@openmoko.org>");
+MODULE_DESCRIPTION("PCF50606 input driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:pcf50606-input");