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Diffstat (limited to 'packages/linux/linux-2.6.22+2.6.23-rc5/ts72xx/ep93xx-i2c-bus.diff')
-rw-r--r--packages/linux/linux-2.6.22+2.6.23-rc5/ts72xx/ep93xx-i2c-bus.diff220
1 files changed, 0 insertions, 220 deletions
diff --git a/packages/linux/linux-2.6.22+2.6.23-rc5/ts72xx/ep93xx-i2c-bus.diff b/packages/linux/linux-2.6.22+2.6.23-rc5/ts72xx/ep93xx-i2c-bus.diff
deleted file mode 100644
index efdbf42a45..0000000000
--- a/packages/linux/linux-2.6.22+2.6.23-rc5/ts72xx/ep93xx-i2c-bus.diff
+++ /dev/null
@@ -1,220 +0,0 @@
-
-I2C bus driver using ep93xx GPIOs.
-
-Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org>
-
-Index: linux-2.6.23-rc5/drivers/i2c/busses/Kconfig
-===================================================================
---- linux-2.6.23-rc5.orig/drivers/i2c/busses/Kconfig 2007-09-04 02:25:36.000000000 +0200
-+++ linux-2.6.23-rc5/drivers/i2c/busses/Kconfig 2007-09-04 02:26:20.000000000 +0200
-@@ -654,4 +654,16 @@
- This driver can also be built as module. If so, the module
- will be called i2c-pmcmsp.
-
-+config I2C_EP93XX
-+ tristate "Cirrus Logic EP93XX GPIO-based I2C interface"
-+ depends on I2C && ARCH_EP93XX
-+ select I2C_ALGOBIT
-+ help
-+ Say Y here if you have an Cirrus Logic EP93XX based
-+ system and are using GPIO lines for an I2C bus.
-+
-+ This support is also available as a module. If so, the module
-+ will be called i2c-ep93xx.
-+
-+
- endmenu
-Index: linux-2.6.23-rc5/drivers/i2c/busses/Makefile
-===================================================================
---- linux-2.6.23-rc5.orig/drivers/i2c/busses/Makefile 2007-09-04 02:25:36.000000000 +0200
-+++ linux-2.6.23-rc5/drivers/i2c/busses/Makefile 2007-09-04 02:26:20.000000000 +0200
-@@ -52,6 +52,7 @@
- obj-$(CONFIG_I2C_VOODOO3) += i2c-voodoo3.o
- obj-$(CONFIG_SCx200_ACB) += scx200_acb.o
- obj-$(CONFIG_SCx200_I2C) += scx200_i2c.o
-+obj-$(CONFIG_I2C_EP93XX) += i2c-ep93xx.o
-
- ifeq ($(CONFIG_I2C_DEBUG_BUS),y)
- EXTRA_CFLAGS += -DDEBUG
-Index: linux-2.6.23-rc5/drivers/i2c/busses/i2c-ep93xx.c
-===================================================================
---- /dev/null 1970-01-01 00:00:00.000000000 +0000
-+++ linux-2.6.23-rc5/drivers/i2c/busses/i2c-ep93xx.c 2007-09-04 02:26:20.000000000 +0200
-@@ -0,0 +1,159 @@
-+/*
-+ * EP93XX I2C bus driver.
-+ * Copyright (C) 2007 Lennert Buytenhek <buytenh@wantstofly.org>
-+ *
-+ * An I2C bus driver for the Cirrus Logic EP93xx SoC.
-+ *
-+ * Based on an earlier version by Alessandro Zummo.
-+ */
-+
-+#include <linux/kernel.h>
-+#include <linux/platform_device.h>
-+#include <linux/module.h>
-+#include <linux/i2c.h>
-+#include <linux/i2c-algo-bit.h>
-+#include <asm/hardware.h>
-+#include <asm/arch/gpio.h>
-+
-+struct ep93xx_i2c_priv {
-+ struct ep93xx_i2c_data *data;
-+ struct i2c_adapter adapter;
-+ struct i2c_algo_bit_data algo_data;
-+ int sda;
-+ int scl;
-+};
-+
-+
-+static void ep93xx_bit_setsda(void *cookie, int val)
-+{
-+ struct ep93xx_i2c_priv *priv = cookie;
-+
-+ if (val) {
-+ gpio_line_config(priv->data->sda_pin, GPIO_IN);
-+ if (priv->scl && !priv->sda && priv->data->stop != NULL)
-+ priv->data->stop(priv->data->cookie);
-+ priv->sda = 1;
-+ } else {
-+ if (priv->scl && priv->sda && priv->data->start != NULL)
-+ priv->data->start(priv->data->cookie);
-+ gpio_line_config(priv->data->sda_pin, GPIO_OUT);
-+ gpio_line_set(priv->data->sda_pin, 0);
-+ priv->sda = 0;
-+ }
-+}
-+
-+static void ep93xx_bit_setscl(void *cookie, int val)
-+{
-+ struct ep93xx_i2c_priv *priv = cookie;
-+
-+ if (val) {
-+ gpio_line_config(priv->data->scl_pin, GPIO_IN);
-+ priv->scl = 1;
-+ } else {
-+ gpio_line_config(priv->data->scl_pin, GPIO_OUT);
-+ gpio_line_set(priv->data->scl_pin, 0);
-+ priv->scl = 0;
-+ }
-+}
-+
-+static int ep93xx_bit_getsda(void *cookie)
-+{
-+ struct ep93xx_i2c_priv *priv = cookie;
-+
-+ if (priv->sda == 0)
-+ BUG();
-+
-+ return gpio_line_get(priv->data->sda_pin);
-+}
-+
-+static int ep93xx_bit_getscl(void *cookie)
-+{
-+ struct ep93xx_i2c_priv *priv = cookie;
-+
-+ if (priv->scl == 0)
-+ BUG();
-+
-+ return gpio_line_get(priv->data->scl_pin);
-+}
-+
-+
-+static int ep93xx_i2c_probe(struct platform_device *pdev)
-+{
-+ struct ep93xx_i2c_priv *priv;
-+ int err;
-+
-+ priv = kzalloc(sizeof(struct ep93xx_i2c_priv), GFP_KERNEL);
-+ if (priv == NULL)
-+ return -ENOMEM;
-+
-+ priv->data = pdev->dev.platform_data;
-+
-+ strlcpy(priv->adapter.name, pdev->dev.driver->name, I2C_NAME_SIZE);
-+ priv->adapter.algo_data = &priv->algo_data;
-+ priv->adapter.class = I2C_CLASS_ALL;
-+ priv->adapter.dev.parent = &pdev->dev;
-+
-+ priv->algo_data.data = priv;
-+ priv->algo_data.setsda = ep93xx_bit_setsda;
-+ priv->algo_data.setscl = ep93xx_bit_setscl;
-+ priv->algo_data.getsda = ep93xx_bit_getsda;
-+ priv->algo_data.getscl = ep93xx_bit_getscl;
-+ priv->algo_data.udelay = 10;
-+ priv->algo_data.timeout = 100;
-+
-+ priv->sda = 1;
-+ gpio_line_config(priv->data->sda_pin, GPIO_IN);
-+
-+ priv->scl = 1;
-+ gpio_line_config(priv->data->scl_pin, GPIO_IN);
-+
-+ err = i2c_bit_add_bus(&priv->adapter);
-+ if (err) {
-+ printk(KERN_ERR "ERROR: Could not install %s\n",
-+ pdev->dev.bus_id);
-+ kfree(priv);
-+ return err;
-+ }
-+
-+ platform_set_drvdata(pdev, priv);
-+
-+ return 0;
-+}
-+
-+static int ep93xx_i2c_remove(struct platform_device *pdev)
-+{
-+ struct ep93xx_i2c_priv *priv;
-+
-+ priv = platform_get_drvdata(pdev);
-+ i2c_del_adapter(&priv->adapter);
-+ platform_set_drvdata(pdev, NULL);
-+ kfree(priv);
-+
-+ return 0;
-+}
-+
-+static struct platform_driver ep93xx_i2c_driver = {
-+ .probe = ep93xx_i2c_probe,
-+ .remove = ep93xx_i2c_remove,
-+ .driver = {
-+ .name = "ep93xx-i2c",
-+ .owner = THIS_MODULE,
-+ },
-+};
-+
-+static int __init ep93xx_i2c_init(void)
-+{
-+ return platform_driver_register(&ep93xx_i2c_driver);
-+}
-+
-+static void __exit ep93xx_i2c_exit(void)
-+{
-+ platform_driver_unregister(&ep93xx_i2c_driver);
-+}
-+
-+module_init(ep93xx_i2c_init);
-+module_exit(ep93xx_i2c_exit);
-+
-+MODULE_AUTHOR("Lennert Buytenhek <buytenh@wantstofly.org>");
-+MODULE_DESCRIPTION("GPIO-based I2C adapter for EP93XX systems");
-+MODULE_LICENSE("GPL");
-Index: linux-2.6.23-rc5/include/asm-arm/arch-ep93xx/platform.h
-===================================================================
---- linux-2.6.23-rc5.orig/include/asm-arm/arch-ep93xx/platform.h 2007-09-04 02:25:36.000000000 +0200
-+++ linux-2.6.23-rc5/include/asm-arm/arch-ep93xx/platform.h 2007-09-04 02:28:19.000000000 +0200
-@@ -16,5 +16,13 @@
- unsigned char phy_id;
- };
-
-+struct ep93xx_i2c_data {
-+ int sda_pin;
-+ int scl_pin;
-+ void *cookie;
-+ void (*start)(void *);
-+ void (*stop)(void *);
-+};
-+
-
- #endif
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-29 03:09:18 +0000