merge of '1c44ae3b4aae69a8d66c7c068c44f337bc51f559'

     and 'd039068c51d6eb51dd6d0bd1dd1306d490e3d527'

1 files changed, 282 insertions, 0 deletions

diff --git a/packages/linux/linux-ezx-2.6.24/patches/pxav4l3-8.patch.eml b/packages/linux/linux-ezx-2.6.24/patches/pxav4l3-8.patch.eml
new file mode 100644
index 0000000000..22abad6b1c
--- /dev/null
+++ b/packages/linux/linux-ezx-2.6.24/patches/pxav4l3-8.patch.eml
@@ -0,0 +1,282 @@
+Path: news.gmane.org!not-for-mail
+From: Guennadi Liakhovetski <g.liakhovetski@pengutronix.de>
+Newsgroups: gmane.comp.video.video4linux,gmane.linux.drivers.i2c
+Subject: [RFC PATCH 3/8] Philips PCA9536 4 bit I2C GPIO extender driver
+Date: Wed, 23 Jan 2008 18:41:39 +0100 (CET)
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+Approved: news@gmane.org
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+Cc: i2c@lm-sensors.org
+To: video4linux-list@redhat.com
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+Xref: news.gmane.org gmane.comp.video.video4linux:36471 gmane.linux.drivers.i2c:251
+Archived-At: <http://permalink.gmane.org/gmane.comp.video.video4linux/36471>
+
+This driver will be used by the mt9m001 and the mt9v022 camera drivers,
+that can use a pca9536 to switch between 8 and 10 bit modes.
+
+Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@pengutronix.de>
+---
+ drivers/i2c/chips/Kconfig   |   10 +++
+ drivers/i2c/chips/Makefile  |    1 +
+ drivers/i2c/chips/pca9536.c |  153 +++++++++++++++++++++++++++++++++++++++++++
+ 3 files changed, 164 insertions(+), 0 deletions(-)
+ create mode 100644 drivers/i2c/chips/pca9536.c
+
+diff --git a/drivers/i2c/chips/Kconfig b/drivers/i2c/chips/Kconfig
+index 2e1c24f..6f492f1 100644
+--- a/drivers/i2c/chips/Kconfig
++++ b/drivers/i2c/chips/Kconfig
+@@ -65,6 +65,16 @@ config SENSORS_PCF8574
+ 	  These devices are hard to detect and rarely found on mainstream
+ 	  hardware.  If unsure, say N.
+ 
++config SENSORS_PCA9536
++	tristate "Philips PCA9536 4-bit I/O port"
++	depends on EXPERIMENTAL
++	help
++	  If you say yes here you get support for the Philips PCA9539
++	  4-bit I/O port.
++
++	  This driver can also be built as a module.  If so, the module
++	  will be called pca9536.
++
+ config SENSORS_PCA9539
+ 	tristate "Philips PCA9539 16-bit I/O port"
+ 	depends on EXPERIMENTAL
+diff --git a/drivers/i2c/chips/Makefile b/drivers/i2c/chips/Makefile
+index ca924e1..e24c582 100644
+--- a/drivers/i2c/chips/Makefile
++++ b/drivers/i2c/chips/Makefile
+@@ -8,6 +8,7 @@ obj-$(CONFIG_DS1682)		+= ds1682.o
+ obj-$(CONFIG_SENSORS_EEPROM)	+= eeprom.o
+ obj-$(CONFIG_SENSORS_MAX6875)	+= max6875.o
+ obj-$(CONFIG_SENSORS_M41T00)	+= m41t00.o
++obj-$(CONFIG_SENSORS_PCA9536)	+= pca9536.o
+ obj-$(CONFIG_SENSORS_PCA9539)	+= pca9539.o
+ obj-$(CONFIG_SENSORS_PCF8574)	+= pcf8574.o
+ obj-$(CONFIG_SENSORS_PCF8591)	+= pcf8591.o
+diff --git a/drivers/i2c/chips/pca9536.c b/drivers/i2c/chips/pca9536.c
+new file mode 100644
+index 0000000..08e5d8b
+--- /dev/null
++++ b/drivers/i2c/chips/pca9536.c
+@@ -0,0 +1,152 @@
++/*
++ * Driver for PCA9536 I/O Expander
++ *
++ * Copyright (C) 2008, Guennadi Liakhovetski <kernel@pengutronix.de>
++ *
++ * This program is free software; you can redistribute it and/or modify
++ * it under the terms of the GNU General Public License version 2 as
++ * published by the Free Software Foundation.
++ */
++
++#include <linux/videodev.h>
++#include <linux/slab.h>
++#include <linux/i2c.h>
++#include <linux/hwmon-sysfs.h>
++
++#include <media/v4l2-common.h>
++#include <media/v4l2-chip-ident.h>
++
++#define PCA9536_INPUT 0
++#define PCA9536_OUTPUT 1
++#define PCA9536_INVERT 2
++#define PCA9536_DIRECTION 3
++
++/* following are the sysfs callback functions */
++static ssize_t pca9536_show(struct device *dev, struct device_attribute *attr,
++			    char *buf)
++{
++	struct sensor_device_attribute *psa = to_sensor_dev_attr(attr);
++	struct i2c_client *client = to_i2c_client(dev);
++
++	return sprintf(buf, "%d\n", i2c_smbus_read_byte_data(client,
++							     psa->index));
++}
++
++static ssize_t pca9536_store(struct device *dev, struct device_attribute *attr,
++			     const char *buf, size_t count)
++{
++	struct sensor_device_attribute *psa = to_sensor_dev_attr(attr);
++	struct i2c_client *client = to_i2c_client(dev);
++	unsigned long val = simple_strtoul(buf, NULL, 0);
++
++	if (val > 0xff)
++		return -EINVAL;
++
++	i2c_smbus_write_byte_data(client, psa->index, val);
++	return count;
++}
++
++int pca9536_set_level(struct i2c_client *client, u8 pin, u8 level)
++{
++	s32 data;
++
++	if (pin > 3)
++		return -EINVAL;
++
++	/* Switch to output */
++	data = i2c_smbus_read_byte_data(client, PCA9536_DIRECTION);
++	if (data < 0)
++		return data;
++	data = i2c_smbus_write_byte_data(client, PCA9536_DIRECTION,
++					 data & ~(1 << pin));
++	if (data < 0)
++		return data;
++
++	/* Set level */
++	data = i2c_smbus_read_byte_data(client, PCA9536_OUTPUT);
++	if (data < 0)
++		return data;
++	if (level)
++		data |= (1 << pin);
++	else
++		data &= ~(1 << pin);
++	data = i2c_smbus_write_byte_data(client, PCA9536_OUTPUT, data);
++
++	return data;
++}
++EXPORT_SYMBOL(pca9536_set_level);
++
++/* Define the device attributes */
++
++#define PCA9536_ENTRY_RO(name, reg) \
++	static SENSOR_DEVICE_ATTR(name, S_IRUGO, pca9536_show, NULL, reg)
++
++#define PCA9536_ENTRY_RW(name, reg) \
++	static SENSOR_DEVICE_ATTR(name, S_IRUGO | S_IWUSR, pca9536_show, \
++				  pca9536_store, reg)
++
++PCA9536_ENTRY_RO(input, PCA9536_INPUT);
++PCA9536_ENTRY_RW(output, PCA9536_OUTPUT);
++PCA9536_ENTRY_RW(invert, PCA9536_INVERT);
++PCA9536_ENTRY_RW(direction, PCA9536_DIRECTION);
++
++static struct attribute *pca9536_attributes[] = {
++	&sensor_dev_attr_input.dev_attr.attr,
++	&sensor_dev_attr_output.dev_attr.attr,
++	&sensor_dev_attr_invert.dev_attr.attr,
++	&sensor_dev_attr_direction.dev_attr.attr,
++	NULL
++};
++
++static struct attribute_group pca9536_defattr_group = {
++	.attrs = pca9536_attributes,
++};
++
++static int pca9536_probe(struct i2c_client *client)
++{
++	struct i2c_adapter *adapter = to_i2c_adapter(client->dev.parent);
++
++	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) {
++		pr_debug("%s: I2C-Adapter doesn't support I2C_FUNC_SMBUS_BYTE\n", __FUNCTION__);
++		return -EIO;
++	}
++
++	if (client->dev.platform_data)
++		/* This chip is going to be used from the kernel */
++		*(struct i2c_client **)client->dev.platform_data = client;
++
++	/* Register sysfs hooks */
++	return sysfs_create_group(&client->dev.kobj,
++				  &pca9536_defattr_group);
++}
++
++static int pca9536_remove(struct i2c_client *client)
++{
++	sysfs_remove_group(&client->dev.kobj, &pca9536_defattr_group);
++	return 0;
++}
++
++static struct i2c_driver pca9536_i2c_driver = {
++	.driver = {
++		.name = "pca9536",
++	},
++	.probe		= pca9536_probe,
++	.remove		= pca9536_remove,
++};
++
++static int __init pca9536_mod_init(void)
++{
++	return i2c_add_driver(&pca9536_i2c_driver);
++}
++
++static void __exit pca9536_mod_exit(void)
++{
++	i2c_del_driver(&pca9536_i2c_driver);
++}
++
++module_init(pca9536_mod_init);
++module_exit(pca9536_mod_exit);
++
++MODULE_DESCRIPTION("PCA9536 driver");
++MODULE_AUTHOR("Guennadi Liakhovetski <kernel@pengutronix.de>");
++MODULE_LICENSE("GPL");
+-- 
+1.5.3.4
+
+--
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