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-rw-r--r--drivers/mfd/mcp-core.c2
-rw-r--r--drivers/mfd/mcp-sa11x0.c3
-rw-r--r--drivers/mfd/mcp.h66
-rw-r--r--drivers/mfd/ucb1x00-assabet.c2
-rw-r--r--drivers/mfd/ucb1x00-core.c89
-rw-r--r--drivers/mfd/ucb1x00-ts.c2
-rw-r--r--drivers/mfd/ucb1x00.h255
7 files changed, 91 insertions, 328 deletions
diff --git a/drivers/mfd/mcp-core.c b/drivers/mfd/mcp-core.c
index 57271cb3b316..84815f9ef636 100644
--- a/drivers/mfd/mcp-core.c
+++ b/drivers/mfd/mcp-core.c
@@ -17,11 +17,11 @@
#include <linux/device.h>
#include <linux/slab.h>
#include <linux/string.h>
+#include <linux/mfd/mcp.h>
#include <mach/dma.h>
#include <asm/system.h>
-#include "mcp.h"
#define to_mcp(d) container_of(d, struct mcp, attached_device)
#define to_mcp_driver(d) container_of(d, struct mcp_driver, drv)
diff --git a/drivers/mfd/mcp-sa11x0.c b/drivers/mfd/mcp-sa11x0.c
index 62b32dabf629..258427232728 100644
--- a/drivers/mfd/mcp-sa11x0.c
+++ b/drivers/mfd/mcp-sa11x0.c
@@ -19,6 +19,7 @@
#include <linux/spinlock.h>
#include <linux/slab.h>
#include <linux/platform_device.h>
+#include <linux/mfd/mcp.h>
#include <mach/dma.h>
#include <mach/hardware.h>
@@ -28,7 +29,6 @@
#include <mach/assabet.h>
-#include "mcp.h"
struct mcp_sa11x0 {
u32 mccr0;
@@ -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/mcp.h b/drivers/mfd/mcp.h
deleted file mode 100644
index c093a93b8808..000000000000
--- a/drivers/mfd/mcp.h
+++ /dev/null
@@ -1,66 +0,0 @@
-/*
- * linux/drivers/mfd/mcp.h
- *
- * Copyright (C) 2001 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.
- */
-#ifndef MCP_H
-#define MCP_H
-
-struct mcp_ops;
-
-struct mcp {
- struct module *owner;
- struct mcp_ops *ops;
- spinlock_t lock;
- int use_count;
- unsigned int sclk_rate;
- unsigned int rw_timeout;
- dma_device_t dma_audio_rd;
- dma_device_t dma_audio_wr;
- dma_device_t dma_telco_rd;
- dma_device_t dma_telco_wr;
- struct device attached_device;
-};
-
-struct mcp_ops {
- void (*set_telecom_divisor)(struct mcp *, unsigned int);
- void (*set_audio_divisor)(struct mcp *, unsigned int);
- void (*reg_write)(struct mcp *, unsigned int, unsigned int);
- unsigned int (*reg_read)(struct mcp *, unsigned int);
- void (*enable)(struct mcp *);
- void (*disable)(struct mcp *);
-};
-
-void mcp_set_telecom_divisor(struct mcp *, unsigned int);
-void mcp_set_audio_divisor(struct mcp *, unsigned int);
-void mcp_reg_write(struct mcp *, unsigned int, unsigned int);
-unsigned int mcp_reg_read(struct mcp *, unsigned int);
-void mcp_enable(struct mcp *);
-void mcp_disable(struct mcp *);
-#define mcp_get_sclk_rate(mcp) ((mcp)->sclk_rate)
-
-struct mcp *mcp_host_alloc(struct device *, size_t);
-int mcp_host_register(struct mcp *);
-void mcp_host_unregister(struct mcp *);
-
-struct mcp_driver {
- struct device_driver drv;
- int (*probe)(struct mcp *);
- void (*remove)(struct mcp *);
- int (*suspend)(struct mcp *, pm_message_t);
- int (*resume)(struct mcp *);
-};
-
-int mcp_driver_register(struct mcp_driver *);
-void mcp_driver_unregister(struct mcp_driver *);
-
-#define mcp_get_drvdata(mcp) dev_get_drvdata(&(mcp)->attached_device)
-#define mcp_set_drvdata(mcp,d) dev_set_drvdata(&(mcp)->attached_device, d)
-
-#define mcp_priv(mcp) ((void *)((mcp)+1))
-
-#endif
diff --git a/drivers/mfd/ucb1x00-assabet.c b/drivers/mfd/ucb1x00-assabet.c
index 86fed4870f93..cea9da60850d 100644
--- a/drivers/mfd/ucb1x00-assabet.c
+++ b/drivers/mfd/ucb1x00-assabet.c
@@ -14,10 +14,10 @@
#include <linux/fs.h>
#include <linux/proc_fs.h>
#include <linux/device.h>
+#include <linux/mfd/ucb1x00.h>
#include <mach/dma.h>
-#include "ucb1x00.h"
#define UCB1X00_ATTR(name,input)\
static ssize_t name##_show(struct device *dev, struct device_attribute *attr, \
diff --git a/drivers/mfd/ucb1x00-core.c b/drivers/mfd/ucb1x00-core.c
index 60c3988f3cf3..252b74188ec2 100644
--- a/drivers/mfd/ucb1x00-core.c
+++ b/drivers/mfd/ucb1x00-core.c
@@ -25,12 +25,12 @@
#include <linux/interrupt.h>
#include <linux/device.h>
#include <linux/mutex.h>
+#include <linux/mfd/ucb1x00.h>
+#include <linux/gpio.h>
#include <mach/dma.h>
#include <mach/hardware.h>
-#include "ucb1x00.h"
-
static DEFINE_MUTEX(ucb1x00_mutex);
static LIST_HEAD(ucb1x00_drivers);
static LIST_HEAD(ucb1x00_devices);
@@ -108,6 +108,60 @@ 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)
@@ -476,6 +530,7 @@ 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);
@@ -508,12 +563,27 @@ 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);
@@ -522,6 +592,7 @@ 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);
@@ -529,10 +600,14 @@ 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:
@@ -545,6 +620,7 @@ 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);
@@ -554,6 +630,12 @@ 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);
}
@@ -604,6 +686,7 @@ 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/drivers/mfd/ucb1x00-ts.c b/drivers/mfd/ucb1x00-ts.c
index 61b7d3eb9a2f..000cb414a78a 100644
--- a/drivers/mfd/ucb1x00-ts.c
+++ b/drivers/mfd/ucb1x00-ts.c
@@ -30,12 +30,12 @@
#include <linux/freezer.h>
#include <linux/slab.h>
#include <linux/kthread.h>
+#include <linux/mfd/ucb1x00.h>
#include <mach/dma.h>
#include <mach/collie.h>
#include <asm/mach-types.h>
-#include "ucb1x00.h"
struct ucb1x00_ts {
diff --git a/drivers/mfd/ucb1x00.h b/drivers/mfd/ucb1x00.h
deleted file mode 100644
index a8ad8a0ed5db..000000000000
--- a/drivers/mfd/ucb1x00.h
+++ /dev/null
@@ -1,255 +0,0 @@
-/*
- * linux/drivers/mfd/ucb1x00.h
- *
- * Copyright (C) 2001 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.
- */
-#ifndef UCB1200_H
-#define UCB1200_H
-
-#define UCB_IO_DATA 0x00
-#define UCB_IO_DIR 0x01
-
-#define UCB_IO_0 (1 << 0)
-#define UCB_IO_1 (1 << 1)
-#define UCB_IO_2 (1 << 2)
-#define UCB_IO_3 (1 << 3)
-#define UCB_IO_4 (1 << 4)
-#define UCB_IO_5 (1 << 5)
-#define UCB_IO_6 (1 << 6)
-#define UCB_IO_7 (1 << 7)
-#define UCB_IO_8 (1 << 8)
-#define UCB_IO_9 (1 << 9)
-
-#define UCB_IE_RIS 0x02
-#define UCB_IE_FAL 0x03
-#define UCB_IE_STATUS 0x04
-#define UCB_IE_CLEAR 0x04
-#define UCB_IE_ADC (1 << 11)
-#define UCB_IE_TSPX (1 << 12)
-#define UCB_IE_TSMX (1 << 13)
-#define UCB_IE_TCLIP (1 << 14)
-#define UCB_IE_ACLIP (1 << 15)
-
-#define UCB_IRQ_TSPX 12
-
-#define UCB_TC_A 0x05
-#define UCB_TC_A_LOOP (1 << 7) /* UCB1200 */
-#define UCB_TC_A_AMPL (1 << 7) /* UCB1300 */
-
-#define UCB_TC_B 0x06
-#define UCB_TC_B_VOICE_ENA (1 << 3)
-#define UCB_TC_B_CLIP (1 << 4)
-#define UCB_TC_B_ATT (1 << 6)
-#define UCB_TC_B_SIDE_ENA (1 << 11)
-#define UCB_TC_B_MUTE (1 << 13)
-#define UCB_TC_B_IN_ENA (1 << 14)
-#define UCB_TC_B_OUT_ENA (1 << 15)
-
-#define UCB_AC_A 0x07
-#define UCB_AC_B 0x08
-#define UCB_AC_B_LOOP (1 << 8)
-#define UCB_AC_B_MUTE (1 << 13)
-#define UCB_AC_B_IN_ENA (1 << 14)
-#define UCB_AC_B_OUT_ENA (1 << 15)
-
-#define UCB_TS_CR 0x09
-#define UCB_TS_CR_TSMX_POW (1 << 0)
-#define UCB_TS_CR_TSPX_POW (1 << 1)
-#define UCB_TS_CR_TSMY_POW (1 << 2)
-#define UCB_TS_CR_TSPY_POW (1 << 3)
-#define UCB_TS_CR_TSMX_GND (1 << 4)
-#define UCB_TS_CR_TSPX_GND (1 << 5)
-#define UCB_TS_CR_TSMY_GND (1 << 6)
-#define UCB_TS_CR_TSPY_GND (1 << 7)
-#define UCB_TS_CR_MODE_INT (0 << 8)
-#define UCB_TS_CR_MODE_PRES (1 << 8)
-#define UCB_TS_CR_MODE_POS (2 << 8)
-#define UCB_TS_CR_BIAS_ENA (1 << 11)
-#define UCB_TS_CR_TSPX_LOW (1 << 12)
-#define UCB_TS_CR_TSMX_LOW (1 << 13)
-
-#define UCB_ADC_CR 0x0a
-#define UCB_ADC_SYNC_ENA (1 << 0)
-#define UCB_ADC_VREFBYP_CON (1 << 1)
-#define UCB_ADC_INP_TSPX (0 << 2)
-#define UCB_ADC_INP_TSMX (1 << 2)
-#define UCB_ADC_INP_TSPY (2 << 2)
-#define UCB_ADC_INP_TSMY (3 << 2)
-#define UCB_ADC_INP_AD0 (4 << 2)
-#define UCB_ADC_INP_AD1 (5 << 2)
-#define UCB_ADC_INP_AD2 (6 << 2)
-#define UCB_ADC_INP_AD3 (7 << 2)
-#define UCB_ADC_EXT_REF (1 << 5)
-#define UCB_ADC_START (1 << 7)
-#define UCB_ADC_ENA (1 << 15)
-
-#define UCB_ADC_DATA 0x0b
-#define UCB_ADC_DAT_VAL (1 << 15)
-#define UCB_ADC_DAT(x) (((x) & 0x7fe0) >> 5)
-
-#define UCB_ID 0x0c
-#define UCB_ID_1200 0x1004
-#define UCB_ID_1300 0x1005
-#define UCB_ID_TC35143 0x9712
-
-#define UCB_MODE 0x0d
-#define UCB_MODE_DYN_VFLAG_ENA (1 << 12)
-#define UCB_MODE_AUD_OFF_CAN (1 << 13)
-
-#include "mcp.h"
-
-struct ucb1x00_irq {
- void *devid;
- void (*fn)(int, void *);
-};
-
-struct ucb1x00 {
- spinlock_t lock;
- struct mcp *mcp;
- unsigned int irq;
- struct semaphore adc_sem;
- spinlock_t io_lock;
- u16 id;
- u16 io_dir;
- u16 io_out;
- u16 adc_cr;
- u16 irq_fal_enbl;
- u16 irq_ris_enbl;
- struct ucb1x00_irq irq_handler[16];
- struct device dev;
- struct list_head node;
- struct list_head devs;
-};
-
-struct ucb1x00_driver;
-
-struct ucb1x00_dev {
- struct list_head dev_node;
- struct list_head drv_node;
- struct ucb1x00 *ucb;
- struct ucb1x00_driver *drv;
- void *priv;
-};
-
-struct ucb1x00_driver {
- struct list_head node;
- struct list_head devs;
- int (*add)(struct ucb1x00_dev *dev);
- void (*remove)(struct ucb1x00_dev *dev);
- int (*suspend)(struct ucb1x00_dev *dev, pm_message_t state);
- int (*resume)(struct ucb1x00_dev *dev);
-};
-
-#define classdev_to_ucb1x00(cd) container_of(cd, struct ucb1x00, dev)
-
-int ucb1x00_register_driver(struct ucb1x00_driver *);
-void ucb1x00_unregister_driver(struct ucb1x00_driver *);
-
-/**
- * ucb1x00_clkrate - return the UCB1x00 SIB clock rate
- * @ucb: UCB1x00 structure describing chip
- *
- * Return the SIB clock rate in Hz.
- */
-static inline unsigned int ucb1x00_clkrate(struct ucb1x00 *ucb)
-{
- return mcp_get_sclk_rate(ucb->mcp);
-}
-
-/**
- * ucb1x00_enable - enable the UCB1x00 SIB clock
- * @ucb: UCB1x00 structure describing chip
- *
- * Enable the SIB clock. This can be called multiple times.
- */
-static inline void ucb1x00_enable(struct ucb1x00 *ucb)
-{
- mcp_enable(ucb->mcp);
-}
-
-/**
- * ucb1x00_disable - disable the UCB1x00 SIB clock
- * @ucb: UCB1x00 structure describing chip
- *
- * Disable the SIB clock. The SIB clock will only be disabled
- * when the number of ucb1x00_enable calls match the number of
- * ucb1x00_disable calls.
- */
-static inline void ucb1x00_disable(struct ucb1x00 *ucb)
-{
- mcp_disable(ucb->mcp);
-}
-
-/**
- * ucb1x00_reg_write - write a UCB1x00 register
- * @ucb: UCB1x00 structure describing chip
- * @reg: UCB1x00 4-bit register index to write
- * @val: UCB1x00 16-bit value to write
- *
- * Write the UCB1x00 register @reg with value @val. The SIB
- * clock must be running for this function to return.
- */
-static inline void ucb1x00_reg_write(struct ucb1x00 *ucb, unsigned int reg, unsigned int val)
-{
- mcp_reg_write(ucb->mcp, reg, val);
-}
-
-/**
- * ucb1x00_reg_read - read a UCB1x00 register
- * @ucb: UCB1x00 structure describing chip
- * @reg: UCB1x00 4-bit register index to write
- *
- * Read the UCB1x00 register @reg and return its value. The SIB
- * clock must be running for this function to return.
- */
-static inline unsigned int ucb1x00_reg_read(struct ucb1x00 *ucb, unsigned int reg)
-{
- return mcp_reg_read(ucb->mcp, reg);
-}
-/**
- * ucb1x00_set_audio_divisor -
- * @ucb: UCB1x00 structure describing chip
- * @div: SIB clock divisor
- */
-static inline void ucb1x00_set_audio_divisor(struct ucb1x00 *ucb, unsigned int div)
-{
- mcp_set_audio_divisor(ucb->mcp, div);
-}
-
-/**
- * ucb1x00_set_telecom_divisor -
- * @ucb: UCB1x00 structure describing chip
- * @div: SIB clock divisor
- */
-static inline void ucb1x00_set_telecom_divisor(struct ucb1x00 *ucb, unsigned int div)
-{
- mcp_set_telecom_divisor(ucb->mcp, div);
-}
-
-void ucb1x00_io_set_dir(struct ucb1x00 *ucb, unsigned int, unsigned int);
-void ucb1x00_io_write(struct ucb1x00 *ucb, unsigned int, unsigned int);
-unsigned int ucb1x00_io_read(struct ucb1x00 *ucb);
-
-#define UCB_NOSYNC (0)
-#define UCB_SYNC (1)
-
-unsigned int ucb1x00_adc_read(struct ucb1x00 *ucb, int adc_channel, int sync);
-void ucb1x00_adc_enable(struct ucb1x00 *ucb);
-void ucb1x00_adc_disable(struct ucb1x00 *ucb);
-
-/*
- * Which edges of the IRQ do you want to control today?
- */
-#define UCB_RISING (1 << 0)
-#define UCB_FALLING (1 << 1)
-
-int ucb1x00_hook_irq(struct ucb1x00 *ucb, unsigned int idx, void (*fn)(int, void *), void *devid);
-void ucb1x00_enable_irq(struct ucb1x00 *ucb, unsigned int idx, int edges);
-void ucb1x00_disable_irq(struct ucb1x00 *ucb, unsigned int idx, int edges);
-int ucb1x00_free_irq(struct ucb1x00 *ucb, unsigned int idx, void *devid);
-
-#endif