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authorRussell King <rmk@dyn-67.arm.linux.org.uk>2005-09-11 10:27:23 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2005-09-11 10:27:23 +0100
commit48c92022ad264cb8084cee78a499f183b264e45f (patch)
tree2d888fb2a7663d0d7130f1d82f231f335d757fcb /drivers
parent[MFD] Add code UCB1200/UCB1300 touchscreen support (diff)
downloadlinux-dev-48c92022ad264cb8084cee78a499f183b264e45f.tar.xz
linux-dev-48c92022ad264cb8084cee78a499f183b264e45f.zip
[MFD] Add code UCB1200/UCB1300 assabet platform support
Add support for Intel assabet specific board support for UCB1200/UCB1300 devices. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/mfd/Makefile4
-rw-r--r--drivers/mfd/ucb1x00-assabet.c73
2 files changed, 77 insertions, 0 deletions
diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile
index a05cd1599a70..adb29b5368a8 100644
--- a/drivers/mfd/Makefile
+++ b/drivers/mfd/Makefile
@@ -6,3 +6,7 @@ obj-$(CONFIG_MCP) += mcp-core.o
obj-$(CONFIG_MCP_SA11X0) += mcp-sa11x0.o
obj-$(CONFIG_MCP_UCB1200) += ucb1x00-core.o
obj-$(CONFIG_MCP_UCB1200_TS) += ucb1x00-ts.o
+
+ifeq ($(CONFIG_SA1100_ASSABET),y)
+obj-$(CONFIG_MCP_UCB1200) += ucb1x00-assabet.o
+endif
diff --git a/drivers/mfd/ucb1x00-assabet.c b/drivers/mfd/ucb1x00-assabet.c
new file mode 100644
index 000000000000..e325fa71f38b
--- /dev/null
+++ b/drivers/mfd/ucb1x00-assabet.c
@@ -0,0 +1,73 @@
+/*
+ * linux/drivers/mfd/ucb1x00-assabet.c
+ *
+ * Copyright (C) 2001-2003 Russell King, All Rights Reserved.
+ *
+ * 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.
+ *
+ * We handle the machine-specific bits of the UCB1x00 driver here.
+ */
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/fs.h>
+#include <linux/proc_fs.h>
+#include <linux/device.h>
+
+#include <asm/dma.h>
+
+#include "ucb1x00.h"
+
+#define UCB1X00_ATTR(name,input)\
+static ssize_t name##_show(struct class_device *dev, char *buf) \
+{ \
+ struct ucb1x00 *ucb = classdev_to_ucb1x00(dev); \
+ int val; \
+ ucb1x00_adc_enable(ucb); \
+ val = ucb1x00_adc_read(ucb, input, UCB_NOSYNC); \
+ ucb1x00_adc_disable(ucb); \
+ return sprintf(buf, "%d\n", val); \
+} \
+static CLASS_DEVICE_ATTR(name,0444,name##_show,NULL)
+
+UCB1X00_ATTR(vbatt, UCB_ADC_INP_AD1);
+UCB1X00_ATTR(vcharger, UCB_ADC_INP_AD0);
+UCB1X00_ATTR(batt_temp, UCB_ADC_INP_AD2);
+
+static int ucb1x00_assabet_add(struct ucb1x00_dev *dev)
+{
+ class_device_create_file(&dev->ucb->cdev, &class_device_attr_vbatt);
+ class_device_create_file(&dev->ucb->cdev, &class_device_attr_vcharger);
+ class_device_create_file(&dev->ucb->cdev, &class_device_attr_batt_temp);
+ return 0;
+}
+
+static void ucb1x00_assabet_remove(struct ucb1x00_dev *dev)
+{
+ class_device_remove_file(&dev->ucb->cdev, &class_device_attr_batt_temp);
+ class_device_remove_file(&dev->ucb->cdev, &class_device_attr_vcharger);
+ class_device_remove_file(&dev->ucb->cdev, &class_device_attr_vbatt);
+}
+
+static struct ucb1x00_driver ucb1x00_assabet_driver = {
+ .add = ucb1x00_assabet_add,
+ .remove = ucb1x00_assabet_remove,
+};
+
+static int __init ucb1x00_assabet_init(void)
+{
+ return ucb1x00_register_driver(&ucb1x00_assabet_driver);
+}
+
+static void __exit ucb1x00_assabet_exit(void)
+{
+ ucb1x00_unregister_driver(&ucb1x00_assabet_driver);
+}
+
+module_init(ucb1x00_assabet_init);
+module_exit(ucb1x00_assabet_exit);
+
+MODULE_AUTHOR("Russell King <rmk@arm.linux.org.uk>");
+MODULE_DESCRIPTION("Assabet noddy testing only example ADC driver");
+MODULE_LICENSE("GPL");