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-rw-r--r--drivers/i2c/busses/Kconfig1
-rw-r--r--drivers/i2c/busses/Makefile1
-rw-r--r--drivers/i2c/busses/i2c-i801.c11
-rw-r--r--drivers/i2c/busses/i2c-stub.c222
4 files changed, 7 insertions, 228 deletions
diff --git a/drivers/i2c/busses/Kconfig b/drivers/i2c/busses/Kconfig
index 65dd599a026..e9df4612b7e 100644
--- a/drivers/i2c/busses/Kconfig
+++ b/drivers/i2c/busses/Kconfig
@@ -81,7 +81,6 @@ config I2C_I801
tristate "Intel 82801 (ICH/PCH)"
depends on PCI
select CHECK_SIGNATURE if X86 && DMI
- select GPIOLIB if I2C_MUX
help
If you say yes to this option, support will be included for the Intel
801 family of mainboard I2C interfaces. Specifically, the following
diff --git a/drivers/i2c/busses/Makefile b/drivers/i2c/busses/Makefile
index 2d33d62952c..395b516ffa0 100644
--- a/drivers/i2c/busses/Makefile
+++ b/drivers/i2c/busses/Makefile
@@ -85,7 +85,6 @@ obj-$(CONFIG_I2C_ACORN) += i2c-acorn.o
obj-$(CONFIG_I2C_ELEKTOR) += i2c-elektor.o
obj-$(CONFIG_I2C_PCA_ISA) += i2c-pca-isa.o
obj-$(CONFIG_I2C_SIBYTE) += i2c-sibyte.o
-obj-$(CONFIG_I2C_STUB) += i2c-stub.o
obj-$(CONFIG_SCx200_ACB) += scx200_acb.o
obj-$(CONFIG_SCx200_I2C) += scx200_i2c.o
diff --git a/drivers/i2c/busses/i2c-i801.c b/drivers/i2c/busses/i2c-i801.c
index 37793156bd9..6abc00d5988 100644
--- a/drivers/i2c/busses/i2c-i801.c
+++ b/drivers/i2c/busses/i2c-i801.c
@@ -82,7 +82,8 @@
#include <linux/wait.h>
#include <linux/err.h>
-#if defined CONFIG_I2C_MUX || defined CONFIG_I2C_MUX_MODULE
+#if (defined CONFIG_I2C_MUX_GPIO || defined CONFIG_I2C_MUX_GPIO_MODULE) && \
+ defined CONFIG_DMI
#include <linux/gpio.h>
#include <linux/i2c-mux-gpio.h>
#include <linux/platform_device.h>
@@ -192,7 +193,8 @@ struct i801_priv {
int len;
u8 *data;
-#if defined CONFIG_I2C_MUX || defined CONFIG_I2C_MUX_MODULE
+#if (defined CONFIG_I2C_MUX_GPIO || defined CONFIG_I2C_MUX_GPIO_MODULE) && \
+ defined CONFIG_DMI
const struct i801_mux_config *mux_drvdata;
struct platform_device *mux_pdev;
#endif
@@ -921,7 +923,8 @@ static void __init input_apanel_init(void) {}
static void __devinit i801_probe_optional_slaves(struct i801_priv *priv) {}
#endif /* CONFIG_X86 && CONFIG_DMI */
-#if defined CONFIG_I2C_MUX || defined CONFIG_I2C_MUX_MODULE
+#if (defined CONFIG_I2C_MUX_GPIO || defined CONFIG_I2C_MUX_GPIO_MODULE) && \
+ defined CONFIG_DMI
static struct i801_mux_config i801_mux_config_asus_z8_d12 = {
.gpio_chip = "gpio_ich",
.values = { 0x02, 0x03 },
@@ -1059,7 +1062,7 @@ static unsigned int __devinit i801_get_adapter_class(struct i801_priv *priv)
id = dmi_first_match(mux_dmi_table);
if (id) {
- /* Remove from branch classes from trunk */
+ /* Remove branch classes from trunk */
mux_config = id->driver_data;
for (i = 0; i < mux_config->n_values; i++)
class &= ~mux_config->classes[i];
diff --git a/drivers/i2c/busses/i2c-stub.c b/drivers/i2c/busses/i2c-stub.c
deleted file mode 100644
index b1b3447942c..00000000000
--- a/drivers/i2c/busses/i2c-stub.c
+++ /dev/null
@@ -1,222 +0,0 @@
-/*
- i2c-stub.c - I2C/SMBus chip emulator
-
- Copyright (c) 2004 Mark M. Hoffman <mhoffman@lightlink.com>
- Copyright (C) 2007 Jean Delvare <khali@linux-fr.org>
-
- 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, or
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-*/
-
-#define DEBUG 1
-
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/slab.h>
-#include <linux/errno.h>
-#include <linux/i2c.h>
-
-#define MAX_CHIPS 10
-#define STUB_FUNC (I2C_FUNC_SMBUS_QUICK | I2C_FUNC_SMBUS_BYTE | \
- I2C_FUNC_SMBUS_BYTE_DATA | I2C_FUNC_SMBUS_WORD_DATA | \
- I2C_FUNC_SMBUS_I2C_BLOCK)
-
-static unsigned short chip_addr[MAX_CHIPS];
-module_param_array(chip_addr, ushort, NULL, S_IRUGO);
-MODULE_PARM_DESC(chip_addr,
- "Chip addresses (up to 10, between 0x03 and 0x77)");
-
-static unsigned long functionality = STUB_FUNC;
-module_param(functionality, ulong, S_IRUGO | S_IWUSR);
-MODULE_PARM_DESC(functionality, "Override functionality bitfield");
-
-struct stub_chip {
- u8 pointer;
- u16 words[256]; /* Byte operations use the LSB as per SMBus
- specification */
-};
-
-static struct stub_chip *stub_chips;
-
-/* Return negative errno on error. */
-static s32 stub_xfer(struct i2c_adapter * adap, u16 addr, unsigned short flags,
- char read_write, u8 command, int size, union i2c_smbus_data * data)
-{
- s32 ret;
- int i, len;
- struct stub_chip *chip = NULL;
-
- /* Search for the right chip */
- for (i = 0; i < MAX_CHIPS && chip_addr[i]; i++) {
- if (addr == chip_addr[i]) {
- chip = stub_chips + i;
- break;
- }
- }
- if (!chip)
- return -ENODEV;
-
- switch (size) {
-
- case I2C_SMBUS_QUICK:
- dev_dbg(&adap->dev, "smbus quick - addr 0x%02x\n", addr);
- ret = 0;
- break;
-
- case I2C_SMBUS_BYTE:
- if (read_write == I2C_SMBUS_WRITE) {
- chip->pointer = command;
- dev_dbg(&adap->dev, "smbus byte - addr 0x%02x, "
- "wrote 0x%02x.\n",
- addr, command);
- } else {
- data->byte = chip->words[chip->pointer++] & 0xff;
- dev_dbg(&adap->dev, "smbus byte - addr 0x%02x, "
- "read 0x%02x.\n",
- addr, data->byte);
- }
-
- ret = 0;
- break;
-
- case I2C_SMBUS_BYTE_DATA:
- if (read_write == I2C_SMBUS_WRITE) {
- chip->words[command] &= 0xff00;
- chip->words[command] |= data->byte;
- dev_dbg(&adap->dev, "smbus byte data - addr 0x%02x, "
- "wrote 0x%02x at 0x%02x.\n",
- addr, data->byte, command);
- } else {
- data->byte = chip->words[command] & 0xff;
- dev_dbg(&adap->dev, "smbus byte data - addr 0x%02x, "
- "read 0x%02x at 0x%02x.\n",
- addr, data->byte, command);
- }
- chip->pointer = command + 1;
-
- ret = 0;
- break;
-
- case I2C_SMBUS_WORD_DATA:
- if (read_write == I2C_SMBUS_WRITE) {
- chip->words[command] = data->word;
- dev_dbg(&adap->dev, "smbus word data - addr 0x%02x, "
- "wrote 0x%04x at 0x%02x.\n",
- addr, data->word, command);
- } else {
- data->word = chip->words[command];
- dev_dbg(&adap->dev, "smbus word data - addr 0x%02x, "
- "read 0x%04x at 0x%02x.\n",
- addr, data->word, command);
- }
-
- ret = 0;
- break;
-
- case I2C_SMBUS_I2C_BLOCK_DATA:
- len = data->block[0];
- if (read_write == I2C_SMBUS_WRITE) {
- for (i = 0; i < len; i++) {
- chip->words[command + i] &= 0xff00;
- chip->words[command + i] |= data->block[1 + i];
- }
- dev_dbg(&adap->dev, "i2c block data - addr 0x%02x, "
- "wrote %d bytes at 0x%02x.\n",
- addr, len, command);
- } else {
- for (i = 0; i < len; i++) {
- data->block[1 + i] =
- chip->words[command + i] & 0xff;
- }
- dev_dbg(&adap->dev, "i2c block data - addr 0x%02x, "
- "read %d bytes at 0x%02x.\n",
- addr, len, command);
- }
-
- ret = 0;
- break;
-
- default:
- dev_dbg(&adap->dev, "Unsupported I2C/SMBus command\n");
- ret = -EOPNOTSUPP;
- break;
- } /* switch (size) */
-
- return ret;
-}
-
-static u32 stub_func(struct i2c_adapter *adapter)
-{
- return STUB_FUNC & functionality;
-}
-
-static const struct i2c_algorithm smbus_algorithm = {
- .functionality = stub_func,
- .smbus_xfer = stub_xfer,
-};
-
-static struct i2c_adapter stub_adapter = {
- .owner = THIS_MODULE,
- .class = I2C_CLASS_HWMON | I2C_CLASS_SPD,
- .algo = &smbus_algorithm,
- .name = "SMBus stub driver",
-};
-
-static int __init i2c_stub_init(void)
-{
- int i, ret;
-
- if (!chip_addr[0]) {
- printk(KERN_ERR "i2c-stub: Please specify a chip address\n");
- return -ENODEV;
- }
-
- for (i = 0; i < MAX_CHIPS && chip_addr[i]; i++) {
- if (chip_addr[i] < 0x03 || chip_addr[i] > 0x77) {
- printk(KERN_ERR "i2c-stub: Invalid chip address "
- "0x%02x\n", chip_addr[i]);
- return -EINVAL;
- }
-
- printk(KERN_INFO "i2c-stub: Virtual chip at 0x%02x\n",
- chip_addr[i]);
- }
-
- /* Allocate memory for all chips at once */
- stub_chips = kzalloc(i * sizeof(struct stub_chip), GFP_KERNEL);
- if (!stub_chips) {
- printk(KERN_ERR "i2c-stub: Out of memory\n");
- return -ENOMEM;
- }
-
- ret = i2c_add_adapter(&stub_adapter);
- if (ret)
- kfree(stub_chips);
- return ret;
-}
-
-static void __exit i2c_stub_exit(void)
-{
- i2c_del_adapter(&stub_adapter);
- kfree(stub_chips);
-}
-
-MODULE_AUTHOR("Mark M. Hoffman <mhoffman@lightlink.com>");
-MODULE_DESCRIPTION("I2C stub driver");
-MODULE_LICENSE("GPL");
-
-module_init(i2c_stub_init);
-module_exit(i2c_stub_exit);
-
generated by cgit v1.2.3-18-g5258 (git 2.32.0) at 2024-12-04 22:07:36 +0000