Merge branch 'org.openembedded.dev' of git@git.openembedded.net:openembedded into org.openembedded.dev

1 files changed, 242 insertions, 0 deletions

diff --git a/packages/linux/linux-2.6.28/collie/0016-add-gpiolib-support-to-ucb1x00.patch b/packages/linux/linux-2.6.28/collie/0016-add-gpiolib-support-to-ucb1x00.patch
new file mode 100644
index 0000000000..aab08a66c9
--- /dev/null
+++ b/packages/linux/linux-2.6.28/collie/0016-add-gpiolib-support-to-ucb1x00.patch
@@ -0,0 +1,242 @@
+From 1de1b5c2860d889a9422f187ad90d8e38b2431fd Mon Sep 17 00:00:00 2001
+From: Thomas Kunze <thommycheck@gmx.de>
+Date: Tue, 10 Feb 2009 14:50:56 +0100
+Subject: [PATCH 16/23] add gpiolib support to ucb1x00
+
+The old access methods to the gpios will be removed when
+all users has been converted. (mainly ucb1x00-ts)
+---
+ arch/arm/mach-sa1100/include/mach/mcp.h |    1 +
+ drivers/mfd/mcp-sa11x0.c                |    1 +
+ drivers/mfd/ucb1x00-core.c              |   87 ++++++++++++++++++++++++++++++-
+ include/linux/mfd/mcp.h                 |    1 +
+ include/linux/mfd/ucb1x00.h             |    3 +
+ 5 files changed, 91 insertions(+), 2 deletions(-)
+
+diff --git a/arch/arm/mach-sa1100/include/mach/mcp.h b/arch/arm/mach-sa1100/include/mach/mcp.h
+index fb8b09a..ed1a331 100644
+--- a/arch/arm/mach-sa1100/include/mach/mcp.h
++++ b/arch/arm/mach-sa1100/include/mach/mcp.h
+@@ -16,6 +16,7 @@ struct mcp_plat_data {
+ 	u32 mccr0;
+ 	u32 mccr1;
+ 	unsigned int sclk_rate;
++	int gpio_base;
+ };
+ 
+ #endif
+diff --git a/drivers/mfd/mcp-sa11x0.c b/drivers/mfd/mcp-sa11x0.c
+index 88c81cf..dfa59eb 100644
+--- a/drivers/mfd/mcp-sa11x0.c
++++ b/drivers/mfd/mcp-sa11x0.c
+@@ -163,6 +163,7 @@ static int mcp_sa11x0_probe(struct platform_device *pdev)
+ 	mcp->dma_audio_wr	= DMA_Ser4MCP0Wr;
+ 	mcp->dma_telco_rd	= DMA_Ser4MCP1Rd;
+ 	mcp->dma_telco_wr	= DMA_Ser4MCP1Wr;
++	mcp->gpio_base		= data->gpio_base;
+ 
+ 	platform_set_drvdata(pdev, mcp);
+ 
+diff --git a/drivers/mfd/ucb1x00-core.c b/drivers/mfd/ucb1x00-core.c
+index bc2c1ba..b9c3f3d 100644
+--- a/drivers/mfd/ucb1x00-core.c
++++ b/drivers/mfd/ucb1x00-core.c
+@@ -25,11 +25,11 @@
+ #include <linux/device.h>
+ #include <linux/mutex.h>
+ #include <linux/mfd/ucb1x00.h>
++#include <linux/gpio.h>
+ 
+ #include <asm/dma.h>
+ #include <mach/hardware.h>
+ 
+-
+ static DEFINE_MUTEX(ucb1x00_mutex);
+ static LIST_HEAD(ucb1x00_drivers);
+ static LIST_HEAD(ucb1x00_devices);
+@@ -107,6 +107,60 @@ unsigned int ucb1x00_io_read(struct ucb1x00 *ucb)
+ 	return ucb1x00_reg_read(ucb, UCB_IO_DATA);
+ }
+ 
++static void ucb1x00_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
++{
++	struct ucb1x00 *ucb = container_of(chip, struct ucb1x00, gpio);
++	unsigned long flags;
++
++	spin_lock_irqsave(&ucb->io_lock, flags);
++	if (value)
++		ucb->io_out |= 1 << offset;
++	else
++		ucb->io_out &= ~(1 << offset);
++
++	ucb1x00_reg_write(ucb, UCB_IO_DATA, ucb->io_out);
++	spin_unlock_irqrestore(&ucb->io_lock, flags);
++}
++
++static int ucb1x00_gpio_get(struct gpio_chip *chip, unsigned offset)
++{
++	struct ucb1x00 *ucb = container_of(chip, struct ucb1x00, gpio);
++	return ucb1x00_reg_read(ucb, UCB_IO_DATA) & (1 << offset);
++}
++
++static int ucb1x00_gpio_direction_input(struct gpio_chip *chip, unsigned offset)
++{
++	struct ucb1x00 *ucb = container_of(chip, struct ucb1x00, gpio);
++	unsigned long flags;
++
++	spin_lock_irqsave(&ucb->io_lock, flags);
++	ucb->io_dir &= ~(1 << offset);
++	ucb1x00_reg_write(ucb, UCB_IO_DIR, ucb->io_dir);
++	spin_unlock_irqrestore(&ucb->io_lock, flags);
++
++	return 0;
++}
++
++static int ucb1x00_gpio_direction_output(struct gpio_chip *chip, unsigned offset
++		, int value)
++{
++	struct ucb1x00 *ucb = container_of(chip, struct ucb1x00, gpio);
++	unsigned long flags;
++
++	spin_lock_irqsave(&ucb->io_lock, flags);
++	ucb->io_dir |= (1 << offset);
++	ucb1x00_reg_write(ucb, UCB_IO_DIR, ucb->io_dir);
++
++	if (value)
++		ucb->io_out |= 1 << offset;
++	else
++		ucb->io_out &= ~(1 << offset);
++	ucb1x00_reg_write(ucb, UCB_IO_DATA, ucb->io_out);
++	spin_unlock_irqrestore(&ucb->io_lock, flags);
++
++	return 0;
++}
++
+ /*
+  * UCB1300 data sheet says we must:
+  *  1. enable ADC	=> 5us (including reference startup time)
+@@ -475,6 +529,7 @@ static int ucb1x00_probe(struct mcp *mcp)
+ 	struct ucb1x00_driver *drv;
+ 	unsigned int id;
+ 	int ret = -ENODEV;
++	int temp;
+ 
+ 	mcp_enable(mcp);
+ 	id = mcp_reg_read(mcp, UCB_ID);
+@@ -507,12 +562,27 @@ static int ucb1x00_probe(struct mcp *mcp)
+ 		goto err_free;
+ 	}
+ 
++	ucb->gpio.base = -1;
++	if (mcp->gpio_base != 0) {
++		ucb->gpio.label = dev_name(&ucb->dev);
++		ucb->gpio.base = mcp->gpio_base;
++		ucb->gpio.ngpio = 10;
++		ucb->gpio.set = ucb1x00_gpio_set;
++		ucb->gpio.get = ucb1x00_gpio_get;
++		ucb->gpio.direction_input = ucb1x00_gpio_direction_input;
++		ucb->gpio.direction_output = ucb1x00_gpio_direction_output;
++		ret = gpiochip_add(&ucb->gpio);
++		if (ret)
++			goto err_free;
++	} else
++		dev_info(&ucb->dev, "gpio_base not set so no gpiolib support");
++
+ 	ret = request_irq(ucb->irq, ucb1x00_irq, IRQF_TRIGGER_RISING,
+ 			  "UCB1x00", ucb);
+ 	if (ret) {
+ 		printk(KERN_ERR "ucb1x00: unable to grab irq%d: %d\n",
+ 			ucb->irq, ret);
+-		goto err_free;
++		goto err_gpio;
+ 	}
+ 
+ 	mcp_set_drvdata(mcp, ucb);
+@@ -521,6 +591,7 @@ static int ucb1x00_probe(struct mcp *mcp)
+ 	if (ret)
+ 		goto err_irq;
+ 
++
+ 	INIT_LIST_HEAD(&ucb->devs);
+ 	mutex_lock(&ucb1x00_mutex);
+ 	list_add(&ucb->node, &ucb1x00_devices);
+@@ -528,10 +599,14 @@ static int ucb1x00_probe(struct mcp *mcp)
+ 		ucb1x00_add_dev(ucb, drv);
+ 	}
+ 	mutex_unlock(&ucb1x00_mutex);
++
+ 	goto out;
+ 
+  err_irq:
+ 	free_irq(ucb->irq, ucb);
++ err_gpio:
++	if (ucb->gpio.base != -1)
++		temp = gpiochip_remove(&ucb->gpio);
+  err_free:
+ 	kfree(ucb);
+  err_disable:
+@@ -544,6 +619,7 @@ static void ucb1x00_remove(struct mcp *mcp)
+ {
+ 	struct ucb1x00 *ucb = mcp_get_drvdata(mcp);
+ 	struct list_head *l, *n;
++	int ret;
+ 
+ 	mutex_lock(&ucb1x00_mutex);
+ 	list_del(&ucb->node);
+@@ -553,6 +629,12 @@ static void ucb1x00_remove(struct mcp *mcp)
+ 	}
+ 	mutex_unlock(&ucb1x00_mutex);
+ 
++	if (ucb->gpio.base != -1) {
++		ret = gpiochip_remove(&ucb->gpio);
++		if (ret)
++			dev_err(&ucb->dev, "Can't remove gpio chip: %d\n", ret);
++	}
++
+ 	free_irq(ucb->irq, ucb);
+ 	device_unregister(&ucb->dev);
+ }
+@@ -603,6 +685,7 @@ static int ucb1x00_resume(struct mcp *mcp)
+ 	struct ucb1x00 *ucb = mcp_get_drvdata(mcp);
+ 	struct ucb1x00_dev *dev;
+ 
++	ucb1x00_reg_write(ucb, UCB_IO_DIR, ucb->io_dir);
+ 	mutex_lock(&ucb1x00_mutex);
+ 	list_for_each_entry(dev, &ucb->devs, dev_node) {
+ 		if (dev->drv->resume)
+diff --git a/include/linux/mfd/mcp.h b/include/linux/mfd/mcp.h
+index be95e09..ee49670 100644
+--- a/include/linux/mfd/mcp.h
++++ b/include/linux/mfd/mcp.h
+@@ -26,6 +26,7 @@ struct mcp {
+ 	dma_device_t	dma_telco_rd;
+ 	dma_device_t	dma_telco_wr;
+ 	struct device	attached_device;
++	int		gpio_base;
+ };
+ 
+ struct mcp_ops {
+diff --git a/include/linux/mfd/ucb1x00.h b/include/linux/mfd/ucb1x00.h
+index 70eb763..b13171e 100644
+--- a/include/linux/mfd/ucb1x00.h
++++ b/include/linux/mfd/ucb1x00.h
+@@ -11,6 +11,8 @@
+ #define UCB1200_H
+ 
+ #include <linux/mfd/mcp.h>
++#include <linux/gpio.h>
++
+ #define UCB_IO_DATA	0x00
+ #define UCB_IO_DIR	0x01
+ 
+@@ -126,6 +128,7 @@ struct ucb1x00 {
+ 	struct device		dev;
+ 	struct list_head	node;
+ 	struct list_head	devs;
++	struct gpio_chip 	gpio;
+ };
+ 
+ struct ucb1x00_driver;
+-- 
+1.5.6.5
+