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-rw-r--r--Documentation/feature-removal-schedule.txt9
-rw-r--r--Documentation/i2c/busses/i2c-voodoo362
-rw-r--r--Documentation/i2c/i2c-stub16
-rw-r--r--Documentation/i2c/old-module-parameters44
-rw-r--r--arch/powerpc/include/asm/pmac_low_i2c.h6
-rw-r--r--arch/powerpc/platforms/powermac/low_i2c.c25
-rw-r--r--drivers/i2c/Kconfig1
-rw-r--r--drivers/i2c/busses/Kconfig16
-rw-r--r--drivers/i2c/busses/Makefile3
-rw-r--r--drivers/i2c/busses/i2c-ali1535.c2
-rw-r--r--drivers/i2c/busses/i2c-ali15x3.c2
-rw-r--r--drivers/i2c/busses/i2c-i801.c3
-rw-r--r--drivers/i2c/busses/i2c-iop3xx.c6
-rw-r--r--drivers/i2c/busses/i2c-mv64xxx.c3
-rw-r--r--drivers/i2c/busses/i2c-powermac.c139
-rw-r--r--drivers/i2c/busses/i2c-sis5595.c2
-rw-r--r--drivers/i2c/busses/i2c-sis630.c2
-rw-r--r--drivers/i2c/busses/i2c-stub.c34
-rw-r--r--drivers/i2c/busses/i2c-voodoo3.c248
-rw-r--r--drivers/i2c/chips/Kconfig10
-rw-r--r--drivers/i2c/chips/Makefile1
-rw-r--r--drivers/i2c/i2c-core.c169
-rw-r--r--drivers/i2c/i2c-dev.c22
-rw-r--r--drivers/misc/Kconfig10
-rw-r--r--drivers/misc/Makefile1
-rw-r--r--drivers/misc/ds1682.c (renamed from drivers/i2c/chips/ds1682.c)0
-rw-r--r--drivers/misc/ics932s401.c37
-rw-r--r--include/linux/i2c.h98
28 files changed, 248 insertions, 723 deletions
diff --git a/Documentation/feature-removal-schedule.txt b/Documentation/feature-removal-schedule.txt
index a004b04ffd3a..591e94448e63 100644
--- a/Documentation/feature-removal-schedule.txt
+++ b/Documentation/feature-removal-schedule.txt
@@ -407,15 +407,6 @@ Who: Alex Chiang <achiang@hp.com>
407 407
408--------------------------- 408---------------------------
409 409
410What: i2c-voodoo3 driver
411When: October 2009
412Why: Superseded by tdfxfb. I2C/DDC support used to live in a separate
413 driver but this caused driver conflicts.
414Who: Jean Delvare <khali@linux-fr.org>
415 Krzysztof Helt <krzysztof.h1@wp.pl>
416
417---------------------------
418
419What: CONFIG_RFKILL_INPUT 410What: CONFIG_RFKILL_INPUT
420When: 2.6.33 411When: 2.6.33
421Why: Should be implemented in userspace, policy daemon. 412Why: Should be implemented in userspace, policy daemon.
diff --git a/Documentation/i2c/busses/i2c-voodoo3 b/Documentation/i2c/busses/i2c-voodoo3
deleted file mode 100644
index 62d90a454d39..000000000000
--- a/Documentation/i2c/busses/i2c-voodoo3
+++ /dev/null
@@ -1,62 +0,0 @@
1Kernel driver i2c-voodoo3
2
3Supported adapters:
4 * 3dfx Voodoo3 based cards
5 * Voodoo Banshee based cards
6
7Authors:
8 Frodo Looijaard <frodol@dds.nl>,
9 Philip Edelbrock <phil@netroedge.com>,
10 Ralph Metzler <rjkm@thp.uni-koeln.de>,
11 Mark D. Studebaker <mdsxyz123@yahoo.com>
12
13Main contact: Philip Edelbrock <phil@netroedge.com>
14
15The code is based upon Ralph's test code (he did the hard stuff ;')
16
17Description
18-----------
19
20The 3dfx Voodoo3 chip contains two I2C interfaces (aka a I2C 'master' or
21'host').
22
23The first interface is used for DDC (Data Display Channel) which is a
24serial channel through the VGA monitor connector to a DDC-compliant
25monitor. This interface is defined by the Video Electronics Standards
26Association (VESA). The standards are available for purchase at
27http://www.vesa.org .
28
29The second interface is a general-purpose I2C bus. The intent by 3dfx was
30to allow manufacturers to add extra chips to the video card such as a
31TV-out chip such as the BT869 or possibly even I2C based temperature
32sensors like the ADM1021 or LM75.
33
34Stability
35---------
36
37Seems to be stable on the test machine, but needs more testing on other
38machines. Simultaneous accesses of the DDC and I2C busses may cause errors.
39
40Supported Devices
41-----------------
42
43Specifically, this driver was written and tested on the '3dfx Voodoo3 AGP
443000' which has a tv-out feature (s-video or composite). According to the
45docs and discussions, this code should work for any Voodoo3 based cards as
46well as Voodoo Banshee based cards. The DDC interface has been tested on a
47Voodoo Banshee card.
48
49Issues
50------
51
52Probably many, but it seems to work OK on my system. :')
53
54
55External Device Connection
56--------------------------
57
58The digital video input jumpers give availability to the I2C bus.
59Specifically, pins 13 and 25 (bottom row middle, and bottom right-end) are
60the I2C clock and I2C data lines, respectively. +5V and GND are probably
61also easily available making the addition of extra I2C/SMBus devices easy
62to implement.
diff --git a/Documentation/i2c/i2c-stub b/Documentation/i2c/i2c-stub
index 0d8be1c20c16..fa4b669c166b 100644
--- a/Documentation/i2c/i2c-stub
+++ b/Documentation/i2c/i2c-stub
@@ -2,9 +2,9 @@ MODULE: i2c-stub
2 2
3DESCRIPTION: 3DESCRIPTION:
4 4
5This module is a very simple fake I2C/SMBus driver. It implements four 5This module is a very simple fake I2C/SMBus driver. It implements five
6types of SMBus commands: write quick, (r/w) byte, (r/w) byte data, and 6types of SMBus commands: write quick, (r/w) byte, (r/w) byte data, (r/w)
7(r/w) word data. 7word data, and (r/w) I2C block data.
8 8
9You need to provide chip addresses as a module parameter when loading this 9You need to provide chip addresses as a module parameter when loading this
10driver, which will then only react to SMBus commands to these addresses. 10driver, which will then only react to SMBus commands to these addresses.
@@ -21,8 +21,8 @@ EEPROMs, among others.
21 21
22The typical use-case is like this: 22The typical use-case is like this:
23 1. load this module 23 1. load this module
24 2. use i2cset (from lm_sensors project) to pre-load some data 24 2. use i2cset (from the i2c-tools project) to pre-load some data
25 3. load the target sensors chip driver module 25 3. load the target chip driver module
26 4. observe its behavior in the kernel log 26 4. observe its behavior in the kernel log
27 27
28There's a script named i2c-stub-from-dump in the i2c-tools package which 28There's a script named i2c-stub-from-dump in the i2c-tools package which
@@ -33,6 +33,12 @@ PARAMETERS:
33int chip_addr[10]: 33int chip_addr[10]:
34 The SMBus addresses to emulate chips at. 34 The SMBus addresses to emulate chips at.
35 35
36unsigned long functionality:
37 Functionality override, to disable some commands. See I2C_FUNC_*
38 constants in <linux/i2c.h> for the suitable values. For example,
39 value 0x1f0000 would only enable the quick, byte and byte data
40 commands.
41
36CAVEATS: 42CAVEATS:
37 43
38If your target driver polls some byte or word waiting for it to change, the 44If your target driver polls some byte or word waiting for it to change, the
diff --git a/Documentation/i2c/old-module-parameters b/Documentation/i2c/old-module-parameters
new file mode 100644
index 000000000000..8e2b629d533c
--- /dev/null
+++ b/Documentation/i2c/old-module-parameters
@@ -0,0 +1,44 @@
1I2C device driver binding control from user-space
2=================================================
3
4Up to kernel 2.6.32, many i2c drivers used helper macros provided by
5<linux/i2c.h> which created standard module parameters to let the user
6control how the driver would probe i2c buses and attach to devices. These
7parameters were known as "probe" (to let the driver probe for an extra
8address), "force" (to forcibly attach the driver to a given device) and
9"ignore" (to prevent a driver from probing a given address).
10
11With the conversion of the i2c subsystem to the standard device driver
12binding model, it became clear that these per-module parameters were no
13longer needed, and that a centralized implementation was possible. The new,
14sysfs-based interface is described in the documentation file
15"instantiating-devices", section "Method 4: Instantiate from user-space".
16
17Below is a mapping from the old module parameters to the new interface.
18
19Attaching a driver to an I2C device
20-----------------------------------
21
22Old method (module parameters):
23# modprobe <driver> probe=1,0x2d
24# modprobe <driver> force=1,0x2d
25# modprobe <driver> force_<device>=1,0x2d
26
27New method (sysfs interface):
28# echo <device> 0x2d > /sys/bus/i2c/devices/i2c-1/new_device
29
30Preventing a driver from attaching to an I2C device
31---------------------------------------------------
32
33Old method (module parameters):
34# modprobe <driver> ignore=1,0x2f
35
36New method (sysfs interface):
37# echo dummy 0x2f > /sys/bus/i2c/devices/i2c-1/new_device
38# modprobe <driver>
39
40Of course, it is important to instantiate the "dummy" device before loading
41the driver. The dummy device will be handled by i2c-core itself, preventing
42other drivers from binding to it later on. If there is a real device at the
43problematic address, and you want another driver to bind to it, then simply
44pass the name of the device in question instead of "dummy".
diff --git a/arch/powerpc/include/asm/pmac_low_i2c.h b/arch/powerpc/include/asm/pmac_low_i2c.h
index 131011bd7e76..01d71826d92f 100644
--- a/arch/powerpc/include/asm/pmac_low_i2c.h
+++ b/arch/powerpc/include/asm/pmac_low_i2c.h
@@ -72,11 +72,7 @@ extern int pmac_i2c_get_type(struct pmac_i2c_bus *bus);
72extern int pmac_i2c_get_flags(struct pmac_i2c_bus *bus); 72extern int pmac_i2c_get_flags(struct pmac_i2c_bus *bus);
73extern int pmac_i2c_get_channel(struct pmac_i2c_bus *bus); 73extern int pmac_i2c_get_channel(struct pmac_i2c_bus *bus);
74 74
75/* i2c layer adapter attach/detach */ 75/* i2c layer adapter helpers */
76extern void pmac_i2c_attach_adapter(struct pmac_i2c_bus *bus,
77 struct i2c_adapter *adapter);
78extern void pmac_i2c_detach_adapter(struct pmac_i2c_bus *bus,
79 struct i2c_adapter *adapter);
80extern struct i2c_adapter *pmac_i2c_get_adapter(struct pmac_i2c_bus *bus); 76extern struct i2c_adapter *pmac_i2c_get_adapter(struct pmac_i2c_bus *bus);
81extern struct pmac_i2c_bus *pmac_i2c_adapter_to_bus(struct i2c_adapter *adapter); 77extern struct pmac_i2c_bus *pmac_i2c_adapter_to_bus(struct i2c_adapter *adapter);
82 78
diff --git a/arch/powerpc/platforms/powermac/low_i2c.c b/arch/powerpc/platforms/powermac/low_i2c.c
index 414ca9849f23..345e2da56767 100644
--- a/arch/powerpc/platforms/powermac/low_i2c.c
+++ b/arch/powerpc/platforms/powermac/low_i2c.c
@@ -42,6 +42,7 @@
42#include <linux/interrupt.h> 42#include <linux/interrupt.h>
43#include <linux/timer.h> 43#include <linux/timer.h>
44#include <linux/mutex.h> 44#include <linux/mutex.h>
45#include <linux/i2c.h>
45#include <asm/keylargo.h> 46#include <asm/keylargo.h>
46#include <asm/uninorth.h> 47#include <asm/uninorth.h>
47#include <asm/io.h> 48#include <asm/io.h>
@@ -80,7 +81,7 @@ struct pmac_i2c_bus
80 struct device_node *busnode; 81 struct device_node *busnode;
81 int type; 82 int type;
82 int flags; 83 int flags;
83 struct i2c_adapter *adapter; 84 struct i2c_adapter adapter;
84 void *hostdata; 85 void *hostdata;
85 int channel; /* some hosts have multiple */ 86 int channel; /* some hosts have multiple */
86 int mode; /* current mode */ 87 int mode; /* current mode */
@@ -1014,25 +1015,9 @@ int pmac_i2c_get_channel(struct pmac_i2c_bus *bus)
1014EXPORT_SYMBOL_GPL(pmac_i2c_get_channel); 1015EXPORT_SYMBOL_GPL(pmac_i2c_get_channel);
1015 1016
1016 1017
1017void pmac_i2c_attach_adapter(struct pmac_i2c_bus *bus,
1018 struct i2c_adapter *adapter)
1019{
1020 WARN_ON(bus->adapter != NULL);
1021 bus->adapter = adapter;
1022}
1023EXPORT_SYMBOL_GPL(pmac_i2c_attach_adapter);
1024
1025void pmac_i2c_detach_adapter(struct pmac_i2c_bus *bus,
1026 struct i2c_adapter *adapter)
1027{
1028 WARN_ON(bus->adapter != adapter);
1029 bus->adapter = NULL;
1030}
1031EXPORT_SYMBOL_GPL(pmac_i2c_detach_adapter);
1032
1033struct i2c_adapter *pmac_i2c_get_adapter(struct pmac_i2c_bus *bus) 1018struct i2c_adapter *pmac_i2c_get_adapter(struct pmac_i2c_bus *bus)
1034{ 1019{
1035 return bus->adapter; 1020 return &bus->adapter;
1036} 1021}
1037EXPORT_SYMBOL_GPL(pmac_i2c_get_adapter); 1022EXPORT_SYMBOL_GPL(pmac_i2c_get_adapter);
1038 1023
@@ -1041,7 +1026,7 @@ struct pmac_i2c_bus *pmac_i2c_adapter_to_bus(struct i2c_adapter *adapter)
1041 struct pmac_i2c_bus *bus; 1026 struct pmac_i2c_bus *bus;
1042 1027
1043 list_for_each_entry(bus, &pmac_i2c_busses, link) 1028 list_for_each_entry(bus, &pmac_i2c_busses, link)
1044 if (bus->adapter == adapter) 1029 if (&bus->adapter == adapter)
1045 return bus; 1030 return bus;
1046 return NULL; 1031 return NULL;
1047} 1032}
@@ -1053,7 +1038,7 @@ int pmac_i2c_match_adapter(struct device_node *dev, struct i2c_adapter *adapter)
1053 1038
1054 if (bus == NULL) 1039 if (bus == NULL)
1055 return 0; 1040 return 0;
1056 return (bus->adapter == adapter); 1041 return (&bus->adapter == adapter);
1057} 1042}
1058EXPORT_SYMBOL_GPL(pmac_i2c_match_adapter); 1043EXPORT_SYMBOL_GPL(pmac_i2c_match_adapter);
1059 1044
diff --git a/drivers/i2c/Kconfig b/drivers/i2c/Kconfig
index d7ece131b4f4..8d8a00e5a30e 100644
--- a/drivers/i2c/Kconfig
+++ b/drivers/i2c/Kconfig
@@ -5,6 +5,7 @@
5menuconfig I2C 5menuconfig I2C
6 tristate "I2C support" 6 tristate "I2C support"
7 depends on HAS_IOMEM 7 depends on HAS_IOMEM
8 select RT_MUTEXES
8 ---help--- 9 ---help---
9 I2C (pronounce: I-square-C) is a slow serial bus protocol used in 10 I2C (pronounce: I-square-C) is a slow serial bus protocol used in
10 many micro controller applications and developed by Philips. SMBus, 11 many micro controller applications and developed by Philips. SMBus,
diff --git a/drivers/i2c/busses/Kconfig b/drivers/i2c/busses/Kconfig
index e8fe7f169e25..5f318ce29770 100644
--- a/drivers/i2c/busses/Kconfig
+++ b/drivers/i2c/busses/Kconfig
@@ -640,22 +640,6 @@ config I2C_TINY_USB
640 This driver can also be built as a module. If so, the module 640 This driver can also be built as a module. If so, the module
641 will be called i2c-tiny-usb. 641 will be called i2c-tiny-usb.
642 642
643comment "Graphics adapter I2C/DDC channel drivers"
644 depends on PCI
645
646config I2C_VOODOO3
647 tristate "Voodoo 3 (DEPRECATED)"
648 depends on PCI
649 select I2C_ALGOBIT
650 help
651 If you say yes to this option, support will be included for the
652 Voodoo 3 I2C interface. This driver is deprecated and you should
653 use the tdfxfb driver instead, which additionally provides
654 framebuffer support.
655
656 This driver can also be built as a module. If so, the module
657 will be called i2c-voodoo3.
658
659comment "Other I2C/SMBus bus drivers" 643comment "Other I2C/SMBus bus drivers"
660 644
661config I2C_ACORN 645config I2C_ACORN
diff --git a/drivers/i2c/busses/Makefile b/drivers/i2c/busses/Makefile
index ff937ac69f5b..302c551977bb 100644
--- a/drivers/i2c/busses/Makefile
+++ b/drivers/i2c/busses/Makefile
@@ -61,9 +61,6 @@ obj-$(CONFIG_I2C_PARPORT_LIGHT) += i2c-parport-light.o
61obj-$(CONFIG_I2C_TAOS_EVM) += i2c-taos-evm.o 61obj-$(CONFIG_I2C_TAOS_EVM) += i2c-taos-evm.o
62obj-$(CONFIG_I2C_TINY_USB) += i2c-tiny-usb.o 62obj-$(CONFIG_I2C_TINY_USB) += i2c-tiny-usb.o
63 63
64# Graphics adapter I2C/DDC channel drivers
65obj-$(CONFIG_I2C_VOODOO3) += i2c-voodoo3.o
66
67# Other I2C/SMBus bus drivers 64# Other I2C/SMBus bus drivers
68obj-$(CONFIG_I2C_ACORN) += i2c-acorn.o 65obj-$(CONFIG_I2C_ACORN) += i2c-acorn.o
69obj-$(CONFIG_I2C_ELEKTOR) += i2c-elektor.o 66obj-$(CONFIG_I2C_ELEKTOR) += i2c-elektor.o
diff --git a/drivers/i2c/busses/i2c-ali1535.c b/drivers/i2c/busses/i2c-ali1535.c
index d108450df064..8de7d7b87bb0 100644
--- a/drivers/i2c/busses/i2c-ali1535.c
+++ b/drivers/i2c/busses/i2c-ali1535.c
@@ -138,7 +138,7 @@ static unsigned short ali1535_smba;
138 Note the differences between kernels with the old PCI BIOS interface and 138 Note the differences between kernels with the old PCI BIOS interface and
139 newer kernels with the real PCI interface. In compat.h some things are 139 newer kernels with the real PCI interface. In compat.h some things are
140 defined to make the transition easier. */ 140 defined to make the transition easier. */
141static int ali1535_setup(struct pci_dev *dev) 141static int __devinit ali1535_setup(struct pci_dev *dev)
142{ 142{
143 int retval = -ENODEV; 143 int retval = -ENODEV;
144 unsigned char temp; 144 unsigned char temp;
diff --git a/drivers/i2c/busses/i2c-ali15x3.c b/drivers/i2c/busses/i2c-ali15x3.c
index d627fceb790b..e7e3205f1286 100644
--- a/drivers/i2c/busses/i2c-ali15x3.c
+++ b/drivers/i2c/busses/i2c-ali15x3.c
@@ -131,7 +131,7 @@ MODULE_PARM_DESC(force_addr,
131static struct pci_driver ali15x3_driver; 131static struct pci_driver ali15x3_driver;
132static unsigned short ali15x3_smba; 132static unsigned short ali15x3_smba;
133 133
134static int ali15x3_setup(struct pci_dev *ALI15X3_dev) 134static int __devinit ali15x3_setup(struct pci_dev *ALI15X3_dev)
135{ 135{
136 u16 a; 136 u16 a;
137 unsigned char temp; 137 unsigned char temp;
diff --git a/drivers/i2c/busses/i2c-i801.c b/drivers/i2c/busses/i2c-i801.c
index 55edcfe5b851..df6ab553f975 100644
--- a/drivers/i2c/busses/i2c-i801.c
+++ b/drivers/i2c/busses/i2c-i801.c
@@ -767,6 +767,9 @@ static int __devinit i801_probe(struct pci_dev *dev, const struct pci_device_id
767 /* set up the sysfs linkage to our parent device */ 767 /* set up the sysfs linkage to our parent device */
768 i801_adapter.dev.parent = &dev->dev; 768 i801_adapter.dev.parent = &dev->dev;
769 769
770 /* Retry up to 3 times on lost arbitration */
771 i801_adapter.retries = 3;
772
770 snprintf(i801_adapter.name, sizeof(i801_adapter.name), 773 snprintf(i801_adapter.name, sizeof(i801_adapter.name),
771 "SMBus I801 adapter at %04lx", i801_smba); 774 "SMBus I801 adapter at %04lx", i801_smba);
772 err = i2c_add_adapter(&i801_adapter); 775 err = i2c_add_adapter(&i801_adapter);
diff --git a/drivers/i2c/busses/i2c-iop3xx.c b/drivers/i2c/busses/i2c-iop3xx.c
index a75c75e77b92..5901707fc66a 100644
--- a/drivers/i2c/busses/i2c-iop3xx.c
+++ b/drivers/i2c/busses/i2c-iop3xx.c
@@ -56,12 +56,6 @@ iic_cook_addr(struct i2c_msg *msg)
56 if (msg->flags & I2C_M_RD) 56 if (msg->flags & I2C_M_RD)
57 addr |= 1; 57 addr |= 1;
58 58
59 /*
60 * Read or Write?
61 */
62 if (msg->flags & I2C_M_REV_DIR_ADDR)
63 addr ^= 1;
64
65 return addr; 59 return addr;
66} 60}
67 61
diff --git a/drivers/i2c/busses/i2c-mv64xxx.c b/drivers/i2c/busses/i2c-mv64xxx.c
index bbab0e166630..ed387ffa4730 100644
--- a/drivers/i2c/busses/i2c-mv64xxx.c
+++ b/drivers/i2c/busses/i2c-mv64xxx.c
@@ -338,9 +338,6 @@ mv64xxx_i2c_prepare_for_io(struct mv64xxx_i2c_data *drv_data,
338 if (msg->flags & I2C_M_RD) 338 if (msg->flags & I2C_M_RD)
339 dir = 1; 339 dir = 1;
340 340
341 if (msg->flags & I2C_M_REV_DIR_ADDR)
342 dir ^= 1;
343
344 if (msg->flags & I2C_M_TEN) { 341 if (msg->flags & I2C_M_TEN) {
345 drv_data->addr1 = 0xf0 | (((u32)msg->addr & 0x300) >> 7) | dir; 342 drv_data->addr1 = 0xf0 | (((u32)msg->addr & 0x300) >> 7) | dir;
346 drv_data->addr2 = (u32)msg->addr & 0xff; 343 drv_data->addr2 = (u32)msg->addr & 0xff;
diff --git a/drivers/i2c/busses/i2c-powermac.c b/drivers/i2c/busses/i2c-powermac.c
index 3c9d71f60187..1c440a70ec61 100644
--- a/drivers/i2c/busses/i2c-powermac.c
+++ b/drivers/i2c/busses/i2c-powermac.c
@@ -49,48 +49,38 @@ static s32 i2c_powermac_smbus_xfer( struct i2c_adapter* adap,
49 int rc = 0; 49 int rc = 0;
50 int read = (read_write == I2C_SMBUS_READ); 50 int read = (read_write == I2C_SMBUS_READ);
51 int addrdir = (addr << 1) | read; 51 int addrdir = (addr << 1) | read;
52 int mode, subsize, len;
53 u32 subaddr;
54 u8 *buf;
52 u8 local[2]; 55 u8 local[2];
53 56
54 rc = pmac_i2c_open(bus, 0); 57 if (size == I2C_SMBUS_QUICK || size == I2C_SMBUS_BYTE) {
55 if (rc) 58 mode = pmac_i2c_mode_std;
56 return rc; 59 subsize = 0;
60 subaddr = 0;
61 } else {
62 mode = read ? pmac_i2c_mode_combined : pmac_i2c_mode_stdsub;
63 subsize = 1;
64 subaddr = command;
65 }
57 66
58 switch (size) { 67 switch (size) {
59 case I2C_SMBUS_QUICK: 68 case I2C_SMBUS_QUICK:
60 rc = pmac_i2c_setmode(bus, pmac_i2c_mode_std); 69 buf = NULL;
61 if (rc) 70 len = 0;
62 goto bail;
63 rc = pmac_i2c_xfer(bus, addrdir, 0, 0, NULL, 0);
64 break; 71 break;
65 case I2C_SMBUS_BYTE: 72 case I2C_SMBUS_BYTE:
66 rc = pmac_i2c_setmode(bus, pmac_i2c_mode_std);
67 if (rc)
68 goto bail;
69 rc = pmac_i2c_xfer(bus, addrdir, 0, 0, &data->byte, 1);
70 break;
71 case I2C_SMBUS_BYTE_DATA: 73 case I2C_SMBUS_BYTE_DATA:
72 rc = pmac_i2c_setmode(bus, read ? 74 buf = &data->byte;
73 pmac_i2c_mode_combined : 75 len = 1;
74 pmac_i2c_mode_stdsub);
75 if (rc)
76 goto bail;
77 rc = pmac_i2c_xfer(bus, addrdir, 1, command, &data->byte, 1);
78 break; 76 break;
79 case I2C_SMBUS_WORD_DATA: 77 case I2C_SMBUS_WORD_DATA:
80 rc = pmac_i2c_setmode(bus, read ?
81 pmac_i2c_mode_combined :
82 pmac_i2c_mode_stdsub);
83 if (rc)
84 goto bail;
85 if (!read) { 78 if (!read) {
86 local[0] = data->word & 0xff; 79 local[0] = data->word & 0xff;
87 local[1] = (data->word >> 8) & 0xff; 80 local[1] = (data->word >> 8) & 0xff;
88 } 81 }
89 rc = pmac_i2c_xfer(bus, addrdir, 1, command, local, 2); 82 buf = local;
90 if (rc == 0 && read) { 83 len = 2;
91 data->word = ((u16)local[1]) << 8;
92 data->word |= local[0];
93 }
94 break; 84 break;
95 85
96 /* Note that these are broken vs. the expected smbus API where 86 /* Note that these are broken vs. the expected smbus API where
@@ -105,28 +95,44 @@ static s32 i2c_powermac_smbus_xfer( struct i2c_adapter* adap,
105 * a repeat start/addr phase (but not stop in between) 95 * a repeat start/addr phase (but not stop in between)
106 */ 96 */
107 case I2C_SMBUS_BLOCK_DATA: 97 case I2C_SMBUS_BLOCK_DATA:
108 rc = pmac_i2c_setmode(bus, read ? 98 buf = data->block;
109 pmac_i2c_mode_combined : 99 len = data->block[0] + 1;
110 pmac_i2c_mode_stdsub);
111 if (rc)
112 goto bail;
113 rc = pmac_i2c_xfer(bus, addrdir, 1, command, data->block,
114 data->block[0] + 1);
115
116 break; 100 break;
117 case I2C_SMBUS_I2C_BLOCK_DATA: 101 case I2C_SMBUS_I2C_BLOCK_DATA:
118 rc = pmac_i2c_setmode(bus, read ? 102 buf = &data->block[1];
119 pmac_i2c_mode_combined : 103 len = data->block[0];
120 pmac_i2c_mode_stdsub);
121 if (rc)
122 goto bail;
123 rc = pmac_i2c_xfer(bus, addrdir, 1, command,
124 &data->block[1], data->block[0]);
125 break; 104 break;
126 105
127 default: 106 default:
128 rc = -EINVAL; 107 return -EINVAL;
108 }
109
110 rc = pmac_i2c_open(bus, 0);
111 if (rc) {
112 dev_err(&adap->dev, "Failed to open I2C, err %d\n", rc);
113 return rc;
114 }
115
116 rc = pmac_i2c_setmode(bus, mode);
117 if (rc) {
118 dev_err(&adap->dev, "Failed to set I2C mode %d, err %d\n",
119 mode, rc);
120 goto bail;
129 } 121 }
122
123 rc = pmac_i2c_xfer(bus, addrdir, subsize, subaddr, buf, len);
124 if (rc) {
125 dev_err(&adap->dev,
126 "I2C transfer at 0x%02x failed, size %d, err %d\n",
127 addrdir >> 1, size, rc);
128 goto bail;
129 }
130
131 if (size == I2C_SMBUS_WORD_DATA && read) {
132 data->word = ((u16)local[1]) << 8;
133 data->word |= local[0];
134 }
135
130 bail: 136 bail:
131 pmac_i2c_close(bus); 137 pmac_i2c_close(bus);
132 return rc; 138 return rc;
@@ -146,20 +152,33 @@ static int i2c_powermac_master_xfer( struct i2c_adapter *adap,
146 int read; 152 int read;
147 int addrdir; 153 int addrdir;
148 154
155 if (num != 1) {
156 dev_err(&adap->dev,
157 "Multi-message I2C transactions not supported\n");
158 return -EOPNOTSUPP;
159 }
160
149 if (msgs->flags & I2C_M_TEN) 161 if (msgs->flags & I2C_M_TEN)
150 return -EINVAL; 162 return -EINVAL;
151 read = (msgs->flags & I2C_M_RD) != 0; 163 read = (msgs->flags & I2C_M_RD) != 0;
152 addrdir = (msgs->addr << 1) | read; 164 addrdir = (msgs->addr << 1) | read;
153 if (msgs->flags & I2C_M_REV_DIR_ADDR)
154 addrdir ^= 1;
155 165
156 rc = pmac_i2c_open(bus, 0); 166 rc = pmac_i2c_open(bus, 0);
157 if (rc) 167 if (rc) {
168 dev_err(&adap->dev, "Failed to open I2C, err %d\n", rc);
158 return rc; 169 return rc;
170 }
159 rc = pmac_i2c_setmode(bus, pmac_i2c_mode_std); 171 rc = pmac_i2c_setmode(bus, pmac_i2c_mode_std);
160 if (rc) 172 if (rc) {
173 dev_err(&adap->dev, "Failed to set I2C mode %d, err %d\n",
174 pmac_i2c_mode_std, rc);
161 goto bail; 175 goto bail;
176 }
162 rc = pmac_i2c_xfer(bus, addrdir, 0, 0, msgs->buf, msgs->len); 177 rc = pmac_i2c_xfer(bus, addrdir, 0, 0, msgs->buf, msgs->len);
178 if (rc < 0)
179 dev_err(&adap->dev, "I2C %s 0x%02x failed, err %d\n",
180 addrdir & 1 ? "read from" : "write to", addrdir >> 1,
181 rc);
163 bail: 182 bail:
164 pmac_i2c_close(bus); 183 pmac_i2c_close(bus);
165 return rc < 0 ? rc : 1; 184 return rc < 0 ? rc : 1;
@@ -183,19 +202,16 @@ static const struct i2c_algorithm i2c_powermac_algorithm = {
183static int __devexit i2c_powermac_remove(struct platform_device *dev) 202static int __devexit i2c_powermac_remove(struct platform_device *dev)
184{ 203{
185 struct i2c_adapter *adapter = platform_get_drvdata(dev); 204 struct i2c_adapter *adapter = platform_get_drvdata(dev);
186 struct pmac_i2c_bus *bus = i2c_get_adapdata(adapter);
187 int rc; 205 int rc;
188 206
189 rc = i2c_del_adapter(adapter); 207 rc = i2c_del_adapter(adapter);
190 pmac_i2c_detach_adapter(bus, adapter);
191 i2c_set_adapdata(adapter, NULL);
192 /* We aren't that prepared to deal with this... */ 208 /* We aren't that prepared to deal with this... */
193 if (rc) 209 if (rc)
194 printk(KERN_WARNING 210 printk(KERN_WARNING
195 "i2c-powermac.c: Failed to remove bus %s !\n", 211 "i2c-powermac.c: Failed to remove bus %s !\n",
196 adapter->name); 212 adapter->name);
197 platform_set_drvdata(dev, NULL); 213 platform_set_drvdata(dev, NULL);
198 kfree(adapter); 214 memset(adapter, 0, sizeof(*adapter));
199 215
200 return 0; 216 return 0;
201} 217}
@@ -206,12 +222,12 @@ static int __devinit i2c_powermac_probe(struct platform_device *dev)
206 struct pmac_i2c_bus *bus = dev->dev.platform_data; 222 struct pmac_i2c_bus *bus = dev->dev.platform_data;
207 struct device_node *parent = NULL; 223 struct device_node *parent = NULL;
208 struct i2c_adapter *adapter; 224 struct i2c_adapter *adapter;
209 char name[32];
210 const char *basename; 225 const char *basename;
211 int rc; 226 int rc;
212 227
213 if (bus == NULL) 228 if (bus == NULL)
214 return -EINVAL; 229 return -EINVAL;
230 adapter = pmac_i2c_get_adapter(bus);
215 231
216 /* Ok, now we need to make up a name for the interface that will 232 /* Ok, now we need to make up a name for the interface that will
217 * match what we used to do in the past, that is basically the 233 * match what we used to do in the past, that is basically the
@@ -237,29 +253,22 @@ static int __devinit i2c_powermac_probe(struct platform_device *dev)
237 default: 253 default:
238 return -EINVAL; 254 return -EINVAL;
239 } 255 }
240 snprintf(name, 32, "%s %d", basename, pmac_i2c_get_channel(bus)); 256 snprintf(adapter->name, sizeof(adapter->name), "%s %d", basename,
257 pmac_i2c_get_channel(bus));
241 of_node_put(parent); 258 of_node_put(parent);
242 259
243 adapter = kzalloc(sizeof(struct i2c_adapter), GFP_KERNEL);
244 if (adapter == NULL) {
245 printk(KERN_ERR "i2c-powermac: can't allocate inteface !\n");
246 return -ENOMEM;
247 }
248 platform_set_drvdata(dev, adapter); 260 platform_set_drvdata(dev, adapter);
249 strcpy(adapter->name, name);
250 adapter->algo = &i2c_powermac_algorithm; 261 adapter->algo = &i2c_powermac_algorithm;
251 i2c_set_adapdata(adapter, bus); 262 i2c_set_adapdata(adapter, bus);
252 adapter->dev.parent = &dev->dev; 263 adapter->dev.parent = &dev->dev;
253 pmac_i2c_attach_adapter(bus, adapter);
254 rc = i2c_add_adapter(adapter); 264 rc = i2c_add_adapter(adapter);
255 if (rc) { 265 if (rc) {
256 printk(KERN_ERR "i2c-powermac: Adapter %s registration " 266 printk(KERN_ERR "i2c-powermac: Adapter %s registration "
257 "failed\n", name); 267 "failed\n", adapter->name);
258 i2c_set_adapdata(adapter, NULL); 268 memset(adapter, 0, sizeof(*adapter));
259 pmac_i2c_detach_adapter(bus, adapter);
260 } 269 }
261 270
262 printk(KERN_INFO "PowerMac i2c bus %s registered\n", name); 271 printk(KERN_INFO "PowerMac i2c bus %s registered\n", adapter->name);
263 272
264 if (!strncmp(basename, "uni-n", 5)) { 273 if (!strncmp(basename, "uni-n", 5)) {
265 struct device_node *np; 274 struct device_node *np;
diff --git a/drivers/i2c/busses/i2c-sis5595.c b/drivers/i2c/busses/i2c-sis5595.c
index 139f0c7f12a4..844569f7d8b7 100644
--- a/drivers/i2c/busses/i2c-sis5595.c
+++ b/drivers/i2c/busses/i2c-sis5595.c
@@ -142,7 +142,7 @@ static void sis5595_write(u8 reg, u8 data)
142 outb(data, sis5595_base + SMB_DAT); 142 outb(data, sis5595_base + SMB_DAT);
143} 143}
144 144
145static int sis5595_setup(struct pci_dev *SIS5595_dev) 145static int __devinit sis5595_setup(struct pci_dev *SIS5595_dev)
146{ 146{
147 u16 a; 147 u16 a;
148 u8 val; 148 u8 val;
diff --git a/drivers/i2c/busses/i2c-sis630.c b/drivers/i2c/busses/i2c-sis630.c
index 70ca41e90e58..68cff7af7013 100644
--- a/drivers/i2c/busses/i2c-sis630.c
+++ b/drivers/i2c/busses/i2c-sis630.c
@@ -389,7 +389,7 @@ static u32 sis630_func(struct i2c_adapter *adapter)
389 I2C_FUNC_SMBUS_BLOCK_DATA; 389 I2C_FUNC_SMBUS_BLOCK_DATA;
390} 390}
391 391
392static int sis630_setup(struct pci_dev *sis630_dev) 392static int __devinit sis630_setup(struct pci_dev *sis630_dev)
393{ 393{
394 unsigned char b; 394 unsigned char b;
395 struct pci_dev *dummy = NULL; 395 struct pci_dev *dummy = NULL;
diff --git a/drivers/i2c/busses/i2c-stub.c b/drivers/i2c/busses/i2c-stub.c
index 1b7b2af94036..0c770eabe85e 100644
--- a/drivers/i2c/busses/i2c-stub.c
+++ b/drivers/i2c/busses/i2c-stub.c
@@ -35,6 +35,10 @@ module_param_array(chip_addr, ushort, NULL, S_IRUGO);
35MODULE_PARM_DESC(chip_addr, 35MODULE_PARM_DESC(chip_addr,
36 "Chip addresses (up to 10, between 0x03 and 0x77)"); 36 "Chip addresses (up to 10, between 0x03 and 0x77)");
37 37
38static unsigned long functionality = ~0UL;
39module_param(functionality, ulong, S_IRUGO | S_IWUSR);
40MODULE_PARM_DESC(functionality, "Override functionality bitfield");
41
38struct stub_chip { 42struct stub_chip {
39 u8 pointer; 43 u8 pointer;
40 u16 words[256]; /* Byte operations use the LSB as per SMBus 44 u16 words[256]; /* Byte operations use the LSB as per SMBus
@@ -48,7 +52,7 @@ static s32 stub_xfer(struct i2c_adapter * adap, u16 addr, unsigned short flags,
48 char read_write, u8 command, int size, union i2c_smbus_data * data) 52 char read_write, u8 command, int size, union i2c_smbus_data * data)
49{ 53{
50 s32 ret; 54 s32 ret;
51 int i; 55 int i, len;
52 struct stub_chip *chip = NULL; 56 struct stub_chip *chip = NULL;
53 57
54 /* Search for the right chip */ 58 /* Search for the right chip */
@@ -118,6 +122,29 @@ static s32 stub_xfer(struct i2c_adapter * adap, u16 addr, unsigned short flags,
118 ret = 0; 122 ret = 0;
119 break; 123 break;
120 124
125 case I2C_SMBUS_I2C_BLOCK_DATA:
126 len = data->block[0];
127 if (read_write == I2C_SMBUS_WRITE) {
128 for (i = 0; i < len; i++) {
129 chip->words[command + i] &= 0xff00;
130 chip->words[command + i] |= data->block[1 + i];
131 }
132 dev_dbg(&adap->dev, "i2c block data - addr 0x%02x, "
133 "wrote %d bytes at 0x%02x.\n",
134 addr, len, command);
135 } else {
136 for (i = 0; i < len; i++) {
137 data->block[1 + i] =
138 chip->words[command + i] & 0xff;
139 }
140 dev_dbg(&adap->dev, "i2c block data - addr 0x%02x, "
141 "read %d bytes at 0x%02x.\n",
142 addr, len, command);
143 }
144
145 ret = 0;
146 break;
147
121 default: 148 default:
122 dev_dbg(&adap->dev, "Unsupported I2C/SMBus command\n"); 149 dev_dbg(&adap->dev, "Unsupported I2C/SMBus command\n");
123 ret = -EOPNOTSUPP; 150 ret = -EOPNOTSUPP;
@@ -129,8 +156,9 @@ static s32 stub_xfer(struct i2c_adapter * adap, u16 addr, unsigned short flags,
129 156
130static u32 stub_func(struct i2c_adapter *adapter) 157static u32 stub_func(struct i2c_adapter *adapter)
131{ 158{
132 return I2C_FUNC_SMBUS_QUICK | I2C_FUNC_SMBUS_BYTE | 159 return (I2C_FUNC_SMBUS_QUICK | I2C_FUNC_SMBUS_BYTE |
133 I2C_FUNC_SMBUS_BYTE_DATA | I2C_FUNC_SMBUS_WORD_DATA; 160 I2C_FUNC_SMBUS_BYTE_DATA | I2C_FUNC_SMBUS_WORD_DATA |
161 I2C_FUNC_SMBUS_I2C_BLOCK) & functionality;
134} 162}
135 163
136static const struct i2c_algorithm smbus_algorithm = { 164static const struct i2c_algorithm smbus_algorithm = {
diff --git a/drivers/i2c/busses/i2c-voodoo3.c b/drivers/i2c/busses/i2c-voodoo3.c
deleted file mode 100644
index 7663d57833a0..000000000000
--- a/drivers/i2c/busses/i2c-voodoo3.c
+++ /dev/null
@@ -1,248 +0,0 @@
1/*
2 Copyright (c) 1998, 1999 Frodo Looijaard <frodol@dds.nl>,
3 Philip Edelbrock <phil@netroedge.com>,
4 Ralph Metzler <rjkm@thp.uni-koeln.de>, and
5 Mark D. Studebaker <mdsxyz123@yahoo.com>
6
7 Based on code written by Ralph Metzler <rjkm@thp.uni-koeln.de> and
8 Simon Vogl
9
10 This program is free software; you can redistribute it and/or modify
11 it under the terms of the GNU General Public License as published by
12 the Free Software Foundation; either version 2 of the License, or
13 (at your option) any later version.
14
15 This program is distributed in the hope that it will be useful,
16 but WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 GNU General Public License for more details.
19
20 You should have received a copy of the GNU General Public License
21 along with this program; if not, write to the Free Software
22 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
23*/
24
25/* This interfaces to the I2C bus of the Voodoo3 to gain access to
26 the BT869 and possibly other I2C devices. */
27
28#include <linux/kernel.h>
29#include <linux/module.h>
30#include <linux/init.h>
31#include <linux/pci.h>
32#include <linux/i2c.h>
33#include <linux/i2c-algo-bit.h>
34#include <asm/io.h>
35
36/* the only registers we use */
37#define REG 0x78
38#define REG2 0x70
39
40/* bit locations in the register */
41#define DDC_ENAB 0x00040000
42#define DDC_SCL_OUT 0x00080000
43#define DDC_SDA_OUT 0x00100000
44#define DDC_SCL_IN 0x00200000
45#define DDC_SDA_IN 0x00400000
46#define I2C_ENAB 0x00800000
47#define I2C_SCL_OUT 0x01000000
48#define I2C_SDA_OUT 0x02000000
49#define I2C_SCL_IN 0x04000000
50#define I2C_SDA_IN 0x08000000
51
52/* initialization states */
53#define INIT2 0x2
54#define INIT3 0x4
55
56/* delays */
57#define CYCLE_DELAY 10
58#define TIMEOUT (HZ / 2)
59
60
61static void __iomem *ioaddr;
62
63/* The voo GPIO registers don't have individual masks for each bit
64 so we always have to read before writing. */
65
66static void bit_vooi2c_setscl(void *data, int val)
67{
68 unsigned int r;
69 r = readl(ioaddr + REG);
70 if (val)
71 r |= I2C_SCL_OUT;
72 else
73 r &= ~I2C_SCL_OUT;
74 writel(r, ioaddr + REG);
75 readl(ioaddr + REG); /* flush posted write */
76}
77
78static void bit_vooi2c_setsda(void *data, int val)
79{
80 unsigned int r;
81 r = readl(ioaddr + REG);
82 if (val)
83 r |= I2C_SDA_OUT;
84 else
85 r &= ~I2C_SDA_OUT;
86 writel(r, ioaddr + REG);
87 readl(ioaddr + REG); /* flush posted write */
88}
89
90/* The GPIO pins are open drain, so the pins always remain outputs.
91 We rely on the i2c-algo-bit routines to set the pins high before
92 reading the input from other chips. */
93
94static int bit_vooi2c_getscl(void *data)
95{
96 return (0 != (readl(ioaddr + REG) & I2C_SCL_IN));
97}
98
99static int bit_vooi2c_getsda(void *data)
100{
101 return (0 != (readl(ioaddr + REG) & I2C_SDA_IN));
102}
103
104static void bit_vooddc_setscl(void *data, int val)
105{
106 unsigned int r;
107 r = readl(ioaddr + REG);
108 if (val)
109 r |= DDC_SCL_OUT;
110 else
111 r &= ~DDC_SCL_OUT;
112 writel(r, ioaddr + REG);
113 readl(ioaddr + REG); /* flush posted write */
114}
115
116static void bit_vooddc_setsda(void *data, int val)
117{
118 unsigned int r;
119 r = readl(ioaddr + REG);
120 if (val)
121 r |= DDC_SDA_OUT;
122 else
123 r &= ~DDC_SDA_OUT;
124 writel(r, ioaddr + REG);
125 readl(ioaddr + REG); /* flush posted write */
126}
127
128static int bit_vooddc_getscl(void *data)
129{
130 return (0 != (readl(ioaddr + REG) & DDC_SCL_IN));
131}
132
133static int bit_vooddc_getsda(void *data)
134{
135 return (0 != (readl(ioaddr + REG) & DDC_SDA_IN));
136}
137
138static int config_v3(struct pci_dev *dev)
139{
140 unsigned long cadr;
141
142 /* map Voodoo3 memory */
143 cadr = dev->resource[0].start;
144 cadr &= PCI_BASE_ADDRESS_MEM_MASK;
145 ioaddr = ioremap_nocache(cadr, 0x1000);
146 if (ioaddr) {
147 writel(0x8160, ioaddr + REG2);
148 writel(0xcffc0020, ioaddr + REG);
149 dev_info(&dev->dev, "Using Banshee/Voodoo3 I2C device at %p\n", ioaddr);
150 return 0;
151 }
152 return -ENODEV;
153}
154
155static struct i2c_algo_bit_data voo_i2c_bit_data = {
156 .setsda = bit_vooi2c_setsda,
157 .setscl = bit_vooi2c_setscl,
158 .getsda = bit_vooi2c_getsda,
159 .getscl = bit_vooi2c_getscl,
160 .udelay = CYCLE_DELAY,
161 .timeout = TIMEOUT
162};
163
164static struct i2c_adapter voodoo3_i2c_adapter = {
165 .owner = THIS_MODULE,
166 .name = "I2C Voodoo3/Banshee adapter",
167 .algo_data = &voo_i2c_bit_data,
168};
169
170static struct i2c_algo_bit_data voo_ddc_bit_data = {
171 .setsda = bit_vooddc_setsda,
172 .setscl = bit_vooddc_setscl,
173 .getsda = bit_vooddc_getsda,
174 .getscl = bit_vooddc_getscl,
175 .udelay = CYCLE_DELAY,
176 .timeout = TIMEOUT
177};
178
179static struct i2c_adapter voodoo3_ddc_adapter = {
180 .owner = THIS_MODULE,
181 .class = I2C_CLASS_DDC,
182 .name = "DDC Voodoo3/Banshee adapter",
183 .algo_data = &voo_ddc_bit_data,
184};
185
186static struct pci_device_id voodoo3_ids[] __devinitdata = {
187 { PCI_DEVICE(PCI_VENDOR_ID_3DFX, PCI_DEVICE_ID_3DFX_VOODOO3) },
188 { PCI_DEVICE(PCI_VENDOR_ID_3DFX, PCI_DEVICE_ID_3DFX_BANSHEE) },
189 { 0, }
190};
191
192MODULE_DEVICE_TABLE (pci, voodoo3_ids);
193
194static int __devinit voodoo3_probe(struct pci_dev *dev, const struct pci_device_id *id)
195{
196 int retval;
197
198 retval = config_v3(dev);
199 if (retval)
200 return retval;
201
202 /* set up the sysfs linkage to our parent device */
203 voodoo3_i2c_adapter.dev.parent = &dev->dev;
204 voodoo3_ddc_adapter.dev.parent = &dev->dev;
205
206 retval = i2c_bit_add_bus(&voodoo3_i2c_adapter);
207 if (retval)
208 return retval;
209 retval = i2c_bit_add_bus(&voodoo3_ddc_adapter);
210 if (retval)
211 i2c_del_adapter(&voodoo3_i2c_adapter);
212 return retval;
213}
214
215static void __devexit voodoo3_remove(struct pci_dev *dev)
216{
217 i2c_del_adapter(&voodoo3_i2c_adapter);
218 i2c_del_adapter(&voodoo3_ddc_adapter);
219 iounmap(ioaddr);
220}
221
222static struct pci_driver voodoo3_driver = {
223 .name = "voodoo3_smbus",
224 .id_table = voodoo3_ids,
225 .probe = voodoo3_probe,
226 .remove = __devexit_p(voodoo3_remove),
227};
228
229static int __init i2c_voodoo3_init(void)
230{
231 return pci_register_driver(&voodoo3_driver);
232}
233
234static void __exit i2c_voodoo3_exit(void)
235{
236 pci_unregister_driver(&voodoo3_driver);
237}
238
239
240MODULE_AUTHOR("Frodo Looijaard <frodol@dds.nl>, "
241 "Philip Edelbrock <phil@netroedge.com>, "
242 "Ralph Metzler <rjkm@thp.uni-koeln.de>, "
243 "and Mark D. Studebaker <mdsxyz123@yahoo.com>");
244MODULE_DESCRIPTION("Voodoo3 I2C/SMBus driver");
245MODULE_LICENSE("GPL");
246
247module_init(i2c_voodoo3_init);
248module_exit(i2c_voodoo3_exit);
diff --git a/drivers/i2c/chips/Kconfig b/drivers/i2c/chips/Kconfig
index f9618f4d4e47..ae4539d99bef 100644
--- a/drivers/i2c/chips/Kconfig
+++ b/drivers/i2c/chips/Kconfig
@@ -6,16 +6,6 @@
6 6
7menu "Miscellaneous I2C Chip support" 7menu "Miscellaneous I2C Chip support"
8 8
9config DS1682
10 tristate "Dallas DS1682 Total Elapsed Time Recorder with Alarm"
11 depends on EXPERIMENTAL
12 help
13 If you say yes here you get support for Dallas Semiconductor
14 DS1682 Total Elapsed Time Recorder.
15
16 This driver can also be built as a module. If so, the module
17 will be called ds1682.
18
19config SENSORS_TSL2550 9config SENSORS_TSL2550
20 tristate "Taos TSL2550 ambient light sensor" 10 tristate "Taos TSL2550 ambient light sensor"
21 depends on EXPERIMENTAL 11 depends on EXPERIMENTAL
diff --git a/drivers/i2c/chips/Makefile b/drivers/i2c/chips/Makefile
index 749cf3606294..fe0af0f81f2d 100644
--- a/drivers/i2c/chips/Makefile
+++ b/drivers/i2c/chips/Makefile
@@ -10,7 +10,6 @@
10# * I/O expander drivers go to drivers/gpio 10# * I/O expander drivers go to drivers/gpio
11# 11#
12 12
13obj-$(CONFIG_DS1682) += ds1682.o
14obj-$(CONFIG_SENSORS_TSL2550) += tsl2550.o 13obj-$(CONFIG_SENSORS_TSL2550) += tsl2550.o
15 14
16ifeq ($(CONFIG_I2C_DEBUG_CHIP),y) 15ifeq ($(CONFIG_I2C_DEBUG_CHIP),y)
diff --git a/drivers/i2c/i2c-core.c b/drivers/i2c/i2c-core.c
index 296504355142..4f34823e86b1 100644
--- a/drivers/i2c/i2c-core.c
+++ b/drivers/i2c/i2c-core.c
@@ -558,11 +558,9 @@ static void i2c_scan_static_board_info(struct i2c_adapter *adapter)
558 up_read(&__i2c_board_lock); 558 up_read(&__i2c_board_lock);
559} 559}
560 560
561static int i2c_do_add_adapter(struct device_driver *d, void *data) 561static int i2c_do_add_adapter(struct i2c_driver *driver,
562 struct i2c_adapter *adap)
562{ 563{
563 struct i2c_driver *driver = to_i2c_driver(d);
564 struct i2c_adapter *adap = data;
565
566 /* Detect supported devices on that bus, and instantiate them */ 564 /* Detect supported devices on that bus, and instantiate them */
567 i2c_detect(adap, driver); 565 i2c_detect(adap, driver);
568 566
@@ -574,6 +572,11 @@ static int i2c_do_add_adapter(struct device_driver *d, void *data)
574 return 0; 572 return 0;
575} 573}
576 574
575static int __process_new_adapter(struct device_driver *d, void *data)
576{
577 return i2c_do_add_adapter(to_i2c_driver(d), data);
578}
579
577static int i2c_register_adapter(struct i2c_adapter *adap) 580static int i2c_register_adapter(struct i2c_adapter *adap)
578{ 581{
579 int res = 0, dummy; 582 int res = 0, dummy;
@@ -584,7 +587,7 @@ static int i2c_register_adapter(struct i2c_adapter *adap)
584 goto out_list; 587 goto out_list;
585 } 588 }
586 589
587 mutex_init(&adap->bus_lock); 590 rt_mutex_init(&adap->bus_lock);
588 591
589 /* Set default timeout to 1 second if not already set */ 592 /* Set default timeout to 1 second if not already set */
590 if (adap->timeout == 0) 593 if (adap->timeout == 0)
@@ -614,7 +617,7 @@ static int i2c_register_adapter(struct i2c_adapter *adap)
614 /* Notify drivers */ 617 /* Notify drivers */
615 mutex_lock(&core_lock); 618 mutex_lock(&core_lock);
616 dummy = bus_for_each_drv(&i2c_bus_type, NULL, adap, 619 dummy = bus_for_each_drv(&i2c_bus_type, NULL, adap,
617 i2c_do_add_adapter); 620 __process_new_adapter);
618 mutex_unlock(&core_lock); 621 mutex_unlock(&core_lock);
619 622
620 return 0; 623 return 0;
@@ -715,10 +718,9 @@ retry:
715} 718}
716EXPORT_SYMBOL_GPL(i2c_add_numbered_adapter); 719EXPORT_SYMBOL_GPL(i2c_add_numbered_adapter);
717 720
718static int i2c_do_del_adapter(struct device_driver *d, void *data) 721static int i2c_do_del_adapter(struct i2c_driver *driver,
722 struct i2c_adapter *adapter)
719{ 723{
720 struct i2c_driver *driver = to_i2c_driver(d);
721 struct i2c_adapter *adapter = data;
722 struct i2c_client *client, *_n; 724 struct i2c_client *client, *_n;
723 int res; 725 int res;
724 726
@@ -750,6 +752,11 @@ static int __unregister_client(struct device *dev, void *dummy)
750 return 0; 752 return 0;
751} 753}
752 754
755static int __process_removed_adapter(struct device_driver *d, void *data)
756{
757 return i2c_do_del_adapter(to_i2c_driver(d), data);
758}
759
753/** 760/**
754 * i2c_del_adapter - unregister I2C adapter 761 * i2c_del_adapter - unregister I2C adapter
755 * @adap: the adapter being unregistered 762 * @adap: the adapter being unregistered
@@ -777,7 +784,7 @@ int i2c_del_adapter(struct i2c_adapter *adap)
777 /* Tell drivers about this removal */ 784 /* Tell drivers about this removal */
778 mutex_lock(&core_lock); 785 mutex_lock(&core_lock);
779 res = bus_for_each_drv(&i2c_bus_type, NULL, adap, 786 res = bus_for_each_drv(&i2c_bus_type, NULL, adap,
780 i2c_do_del_adapter); 787 __process_removed_adapter);
781 mutex_unlock(&core_lock); 788 mutex_unlock(&core_lock);
782 if (res) 789 if (res)
783 return res; 790 return res;
@@ -826,22 +833,11 @@ EXPORT_SYMBOL(i2c_del_adapter);
826 833
827/* ------------------------------------------------------------------------- */ 834/* ------------------------------------------------------------------------- */
828 835
829static int __attach_adapter(struct device *dev, void *data) 836static int __process_new_driver(struct device *dev, void *data)
830{ 837{
831 struct i2c_adapter *adapter;
832 struct i2c_driver *driver = data;
833
834 if (dev->type != &i2c_adapter_type) 838 if (dev->type != &i2c_adapter_type)
835 return 0; 839 return 0;
836 adapter = to_i2c_adapter(dev); 840 return i2c_do_add_adapter(data, to_i2c_adapter(dev));
837
838 i2c_detect(adapter, driver);
839
840 /* Legacy drivers scan i2c busses directly */
841 if (driver->attach_adapter)
842 driver->attach_adapter(adapter);
843
844 return 0;
845} 841}
846 842
847/* 843/*
@@ -873,40 +869,18 @@ int i2c_register_driver(struct module *owner, struct i2c_driver *driver)
873 INIT_LIST_HEAD(&driver->clients); 869 INIT_LIST_HEAD(&driver->clients);
874 /* Walk the adapters that are already present */ 870 /* Walk the adapters that are already present */
875 mutex_lock(&core_lock); 871 mutex_lock(&core_lock);
876 bus_for_each_dev(&i2c_bus_type, NULL, driver, __attach_adapter); 872 bus_for_each_dev(&i2c_bus_type, NULL, driver, __process_new_driver);
877 mutex_unlock(&core_lock); 873 mutex_unlock(&core_lock);
878 874
879 return 0; 875 return 0;
880} 876}
881EXPORT_SYMBOL(i2c_register_driver); 877EXPORT_SYMBOL(i2c_register_driver);
882 878
883static int __detach_adapter(struct device *dev, void *data) 879static int __process_removed_driver(struct device *dev, void *data)
884{ 880{
885 struct i2c_adapter *adapter;
886 struct i2c_driver *driver = data;
887 struct i2c_client *client, *_n;
888
889 if (dev->type != &i2c_adapter_type) 881 if (dev->type != &i2c_adapter_type)
890 return 0; 882 return 0;
891 adapter = to_i2c_adapter(dev); 883 return i2c_do_del_adapter(data, to_i2c_adapter(dev));
892
893 /* Remove the devices we created ourselves as the result of hardware
894 * probing (using a driver's detect method) */
895 list_for_each_entry_safe(client, _n, &driver->clients, detected) {
896 dev_dbg(&adapter->dev, "Removing %s at 0x%x\n",
897 client->name, client->addr);
898 list_del(&client->detected);
899 i2c_unregister_device(client);
900 }
901
902 if (driver->detach_adapter) {
903 if (driver->detach_adapter(adapter))
904 dev_err(&adapter->dev,
905 "detach_adapter failed for driver [%s]\n",
906 driver->driver.name);
907 }
908
909 return 0;
910} 884}
911 885
912/** 886/**
@@ -917,7 +891,7 @@ static int __detach_adapter(struct device *dev, void *data)
917void i2c_del_driver(struct i2c_driver *driver) 891void i2c_del_driver(struct i2c_driver *driver)
918{ 892{
919 mutex_lock(&core_lock); 893 mutex_lock(&core_lock);
920 bus_for_each_dev(&i2c_bus_type, NULL, driver, __detach_adapter); 894 bus_for_each_dev(&i2c_bus_type, NULL, driver, __process_removed_driver);
921 mutex_unlock(&core_lock); 895 mutex_unlock(&core_lock);
922 896
923 driver_unregister(&driver->driver); 897 driver_unregister(&driver->driver);
@@ -1092,12 +1066,12 @@ int i2c_transfer(struct i2c_adapter *adap, struct i2c_msg *msgs, int num)
1092#endif 1066#endif
1093 1067
1094 if (in_atomic() || irqs_disabled()) { 1068 if (in_atomic() || irqs_disabled()) {
1095 ret = mutex_trylock(&adap->bus_lock); 1069 ret = rt_mutex_trylock(&adap->bus_lock);
1096 if (!ret) 1070 if (!ret)
1097 /* I2C activity is ongoing. */ 1071 /* I2C activity is ongoing. */
1098 return -EAGAIN; 1072 return -EAGAIN;
1099 } else { 1073 } else {
1100 mutex_lock_nested(&adap->bus_lock, adap->level); 1074 rt_mutex_lock(&adap->bus_lock);
1101 } 1075 }
1102 1076
1103 /* Retry automatically on arbitration loss */ 1077 /* Retry automatically on arbitration loss */
@@ -1109,7 +1083,7 @@ int i2c_transfer(struct i2c_adapter *adap, struct i2c_msg *msgs, int num)
1109 if (time_after(jiffies, orig_jiffies + adap->timeout)) 1083 if (time_after(jiffies, orig_jiffies + adap->timeout))
1110 break; 1084 break;
1111 } 1085 }
1112 mutex_unlock(&adap->bus_lock); 1086 rt_mutex_unlock(&adap->bus_lock);
1113 1087
1114 return ret; 1088 return ret;
1115 } else { 1089 } else {
@@ -1180,7 +1154,7 @@ EXPORT_SYMBOL(i2c_master_recv);
1180 * ---------------------------------------------------- 1154 * ----------------------------------------------------
1181 */ 1155 */
1182 1156
1183static int i2c_detect_address(struct i2c_client *temp_client, int kind, 1157static int i2c_detect_address(struct i2c_client *temp_client,
1184 struct i2c_driver *driver) 1158 struct i2c_driver *driver)
1185{ 1159{
1186 struct i2c_board_info info; 1160 struct i2c_board_info info;
@@ -1199,22 +1173,18 @@ static int i2c_detect_address(struct i2c_client *temp_client, int kind,
1199 if (i2c_check_addr(adapter, addr)) 1173 if (i2c_check_addr(adapter, addr))
1200 return 0; 1174 return 0;
1201 1175
1202 /* Make sure there is something at this address, unless forced */ 1176 /* Make sure there is something at this address */
1203 if (kind < 0) { 1177 if (i2c_smbus_xfer(adapter, addr, 0, 0, 0, I2C_SMBUS_QUICK, NULL) < 0)
1204 if (i2c_smbus_xfer(adapter, addr, 0, 0, 0, 1178 return 0;
1205 I2C_SMBUS_QUICK, NULL) < 0)
1206 return 0;
1207 1179
1208 /* prevent 24RF08 corruption */ 1180 /* Prevent 24RF08 corruption */
1209 if ((addr & ~0x0f) == 0x50) 1181 if ((addr & ~0x0f) == 0x50)
1210 i2c_smbus_xfer(adapter, addr, 0, 0, 0, 1182 i2c_smbus_xfer(adapter, addr, 0, 0, 0, I2C_SMBUS_QUICK, NULL);
1211 I2C_SMBUS_QUICK, NULL);
1212 }
1213 1183
1214 /* Finally call the custom detection function */ 1184 /* Finally call the custom detection function */
1215 memset(&info, 0, sizeof(struct i2c_board_info)); 1185 memset(&info, 0, sizeof(struct i2c_board_info));
1216 info.addr = addr; 1186 info.addr = addr;
1217 err = driver->detect(temp_client, kind, &info); 1187 err = driver->detect(temp_client, -1, &info);
1218 if (err) { 1188 if (err) {
1219 /* -ENODEV is returned if the detection fails. We catch it 1189 /* -ENODEV is returned if the detection fails. We catch it
1220 here as this isn't an error. */ 1190 here as this isn't an error. */
@@ -1259,40 +1229,13 @@ static int i2c_detect(struct i2c_adapter *adapter, struct i2c_driver *driver)
1259 return -ENOMEM; 1229 return -ENOMEM;
1260 temp_client->adapter = adapter; 1230 temp_client->adapter = adapter;
1261 1231
1262 /* Force entries are done first, and are not affected by ignore
1263 entries */
1264 if (address_data->forces) {
1265 const unsigned short * const *forces = address_data->forces;
1266 int kind;
1267
1268 for (kind = 0; forces[kind]; kind++) {
1269 for (i = 0; forces[kind][i] != I2C_CLIENT_END;
1270 i += 2) {
1271 if (forces[kind][i] == adap_id
1272 || forces[kind][i] == ANY_I2C_BUS) {
1273 dev_dbg(&adapter->dev, "found force "
1274 "parameter for adapter %d, "
1275 "addr 0x%02x, kind %d\n",
1276 adap_id, forces[kind][i + 1],
1277 kind);
1278 temp_client->addr = forces[kind][i + 1];
1279 err = i2c_detect_address(temp_client,
1280 kind, driver);
1281 if (err)
1282 goto exit_free;
1283 }
1284 }
1285 }
1286 }
1287
1288 /* Stop here if the classes do not match */ 1232 /* Stop here if the classes do not match */
1289 if (!(adapter->class & driver->class)) 1233 if (!(adapter->class & driver->class))
1290 goto exit_free; 1234 goto exit_free;
1291 1235
1292 /* Stop here if we can't use SMBUS_QUICK */ 1236 /* Stop here if we can't use SMBUS_QUICK */
1293 if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_QUICK)) { 1237 if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_QUICK)) {
1294 if (address_data->probe[0] == I2C_CLIENT_END 1238 if (address_data->normal_i2c[0] == I2C_CLIENT_END)
1295 && address_data->normal_i2c[0] == I2C_CLIENT_END)
1296 goto exit_free; 1239 goto exit_free;
1297 1240
1298 dev_warn(&adapter->dev, "SMBus Quick command not supported, " 1241 dev_warn(&adapter->dev, "SMBus Quick command not supported, "
@@ -1301,48 +1244,12 @@ static int i2c_detect(struct i2c_adapter *adapter, struct i2c_driver *driver)
1301 goto exit_free; 1244 goto exit_free;
1302 } 1245 }
1303 1246
1304 /* Probe entries are done second, and are not affected by ignore
1305 entries either */
1306 for (i = 0; address_data->probe[i] != I2C_CLIENT_END; i += 2) {
1307 if (address_data->probe[i] == adap_id
1308 || address_data->probe[i] == ANY_I2C_BUS) {
1309 dev_dbg(&adapter->dev, "found probe parameter for "
1310 "adapter %d, addr 0x%02x\n", adap_id,
1311 address_data->probe[i + 1]);
1312 temp_client->addr = address_data->probe[i + 1];
1313 err = i2c_detect_address(temp_client, -1, driver);
1314 if (err)
1315 goto exit_free;
1316 }
1317 }
1318
1319 /* Normal entries are done last, unless shadowed by an ignore entry */
1320 for (i = 0; address_data->normal_i2c[i] != I2C_CLIENT_END; i += 1) { 1247 for (i = 0; address_data->normal_i2c[i] != I2C_CLIENT_END; i += 1) {
1321 int j, ignore;
1322
1323 ignore = 0;
1324 for (j = 0; address_data->ignore[j] != I2C_CLIENT_END;
1325 j += 2) {
1326 if ((address_data->ignore[j] == adap_id ||
1327 address_data->ignore[j] == ANY_I2C_BUS)
1328 && address_data->ignore[j + 1]
1329 == address_data->normal_i2c[i]) {
1330 dev_dbg(&adapter->dev, "found ignore "
1331 "parameter for adapter %d, "
1332 "addr 0x%02x\n", adap_id,
1333 address_data->ignore[j + 1]);
1334 ignore = 1;
1335 break;
1336 }
1337 }
1338 if (ignore)
1339 continue;
1340
1341 dev_dbg(&adapter->dev, "found normal entry for adapter %d, " 1248 dev_dbg(&adapter->dev, "found normal entry for adapter %d, "
1342 "addr 0x%02x\n", adap_id, 1249 "addr 0x%02x\n", adap_id,
1343 address_data->normal_i2c[i]); 1250 address_data->normal_i2c[i]);
1344 temp_client->addr = address_data->normal_i2c[i]; 1251 temp_client->addr = address_data->normal_i2c[i];
1345 err = i2c_detect_address(temp_client, -1, driver); 1252 err = i2c_detect_address(temp_client, driver);
1346 if (err) 1253 if (err)
1347 goto exit_free; 1254 goto exit_free;
1348 } 1255 }
@@ -1913,7 +1820,7 @@ s32 i2c_smbus_xfer(struct i2c_adapter *adapter, u16 addr, unsigned short flags,
1913 flags &= I2C_M_TEN | I2C_CLIENT_PEC; 1820 flags &= I2C_M_TEN | I2C_CLIENT_PEC;
1914 1821
1915 if (adapter->algo->smbus_xfer) { 1822 if (adapter->algo->smbus_xfer) {
1916 mutex_lock(&adapter->bus_lock); 1823 rt_mutex_lock(&adapter->bus_lock);
1917 1824
1918 /* Retry automatically on arbitration loss */ 1825 /* Retry automatically on arbitration loss */
1919 orig_jiffies = jiffies; 1826 orig_jiffies = jiffies;
@@ -1927,7 +1834,7 @@ s32 i2c_smbus_xfer(struct i2c_adapter *adapter, u16 addr, unsigned short flags,
1927 orig_jiffies + adapter->timeout)) 1834 orig_jiffies + adapter->timeout))
1928 break; 1835 break;
1929 } 1836 }
1930 mutex_unlock(&adapter->bus_lock); 1837 rt_mutex_unlock(&adapter->bus_lock);
1931 } else 1838 } else
1932 res = i2c_smbus_xfer_emulated(adapter,addr,flags,read_write, 1839 res = i2c_smbus_xfer_emulated(adapter,addr,flags,read_write,
1933 command, protocol, data); 1840 command, protocol, data);
diff --git a/drivers/i2c/i2c-dev.c b/drivers/i2c/i2c-dev.c
index 7e13d2df9af3..f4110aa49600 100644
--- a/drivers/i2c/i2c-dev.c
+++ b/drivers/i2c/i2c-dev.c
@@ -34,7 +34,6 @@
34#include <linux/list.h> 34#include <linux/list.h>
35#include <linux/i2c.h> 35#include <linux/i2c.h>
36#include <linux/i2c-dev.h> 36#include <linux/i2c-dev.h>
37#include <linux/smp_lock.h>
38#include <linux/jiffies.h> 37#include <linux/jiffies.h>
39#include <asm/uaccess.h> 38#include <asm/uaccess.h>
40 39
@@ -445,20 +444,14 @@ static int i2cdev_open(struct inode *inode, struct file *file)
445 struct i2c_client *client; 444 struct i2c_client *client;
446 struct i2c_adapter *adap; 445 struct i2c_adapter *adap;
447 struct i2c_dev *i2c_dev; 446 struct i2c_dev *i2c_dev;
448 int ret = 0;
449 447
450 lock_kernel();
451 i2c_dev = i2c_dev_get_by_minor(minor); 448 i2c_dev = i2c_dev_get_by_minor(minor);
452 if (!i2c_dev) { 449 if (!i2c_dev)
453 ret = -ENODEV; 450 return -ENODEV;
454 goto out;
455 }
456 451
457 adap = i2c_get_adapter(i2c_dev->adap->nr); 452 adap = i2c_get_adapter(i2c_dev->adap->nr);
458 if (!adap) { 453 if (!adap)
459 ret = -ENODEV; 454 return -ENODEV;
460 goto out;
461 }
462 455
463 /* This creates an anonymous i2c_client, which may later be 456 /* This creates an anonymous i2c_client, which may later be
464 * pointed to some address using I2C_SLAVE or I2C_SLAVE_FORCE. 457 * pointed to some address using I2C_SLAVE or I2C_SLAVE_FORCE.
@@ -470,8 +463,7 @@ static int i2cdev_open(struct inode *inode, struct file *file)
470 client = kzalloc(sizeof(*client), GFP_KERNEL); 463 client = kzalloc(sizeof(*client), GFP_KERNEL);
471 if (!client) { 464 if (!client) {
472 i2c_put_adapter(adap); 465 i2c_put_adapter(adap);
473 ret = -ENOMEM; 466 return -ENOMEM;
474 goto out;
475 } 467 }
476 snprintf(client->name, I2C_NAME_SIZE, "i2c-dev %d", adap->nr); 468 snprintf(client->name, I2C_NAME_SIZE, "i2c-dev %d", adap->nr);
477 client->driver = &i2cdev_driver; 469 client->driver = &i2cdev_driver;
@@ -479,9 +471,7 @@ static int i2cdev_open(struct inode *inode, struct file *file)
479 client->adapter = adap; 471 client->adapter = adap;
480 file->private_data = client; 472 file->private_data = client;
481 473
482out: 474 return 0;
483 unlock_kernel();
484 return ret;
485} 475}
486 476
487static int i2cdev_release(struct inode *inode, struct file *file) 477static int i2cdev_release(struct inode *inode, struct file *file)
diff --git a/drivers/misc/Kconfig b/drivers/misc/Kconfig
index a2ea383105a6..2c16ca6501d5 100644
--- a/drivers/misc/Kconfig
+++ b/drivers/misc/Kconfig
@@ -246,6 +246,16 @@ config EP93XX_PWM
246 To compile this driver as a module, choose M here: the module will 246 To compile this driver as a module, choose M here: the module will
247 be called ep93xx_pwm. 247 be called ep93xx_pwm.
248 248
249config DS1682
250 tristate "Dallas DS1682 Total Elapsed Time Recorder with Alarm"
251 depends on I2C && EXPERIMENTAL
252 help
253 If you say yes here you get support for Dallas Semiconductor
254 DS1682 Total Elapsed Time Recorder.
255
256 This driver can also be built as a module. If so, the module
257 will be called ds1682.
258
249source "drivers/misc/c2port/Kconfig" 259source "drivers/misc/c2port/Kconfig"
250source "drivers/misc/eeprom/Kconfig" 260source "drivers/misc/eeprom/Kconfig"
251source "drivers/misc/cb710/Kconfig" 261source "drivers/misc/cb710/Kconfig"
diff --git a/drivers/misc/Makefile b/drivers/misc/Makefile
index e311267a355f..906a0edcea40 100644
--- a/drivers/misc/Makefile
+++ b/drivers/misc/Makefile
@@ -20,6 +20,7 @@ obj-$(CONFIG_SGI_GRU) += sgi-gru/
20obj-$(CONFIG_HP_ILO) += hpilo.o 20obj-$(CONFIG_HP_ILO) += hpilo.o
21obj-$(CONFIG_ISL29003) += isl29003.o 21obj-$(CONFIG_ISL29003) += isl29003.o
22obj-$(CONFIG_EP93XX_PWM) += ep93xx_pwm.o 22obj-$(CONFIG_EP93XX_PWM) += ep93xx_pwm.o
23obj-$(CONFIG_DS1682) += ds1682.o
23obj-$(CONFIG_C2PORT) += c2port/ 24obj-$(CONFIG_C2PORT) += c2port/
24obj-$(CONFIG_IWMC3200TOP) += iwmc3200top/ 25obj-$(CONFIG_IWMC3200TOP) += iwmc3200top/
25obj-y += eeprom/ 26obj-y += eeprom/
diff --git a/drivers/i2c/chips/ds1682.c b/drivers/misc/ds1682.c
index f3ee4a1abb77..f3ee4a1abb77 100644
--- a/drivers/i2c/chips/ds1682.c
+++ b/drivers/misc/ds1682.c
diff --git a/drivers/misc/ics932s401.c b/drivers/misc/ics932s401.c
index 6e43ab4231ae..4bb7a3af9ad9 100644
--- a/drivers/misc/ics932s401.c
+++ b/drivers/misc/ics932s401.c
@@ -417,32 +417,25 @@ static int ics932s401_detect(struct i2c_client *client, int kind,
417 struct i2c_board_info *info) 417 struct i2c_board_info *info)
418{ 418{
419 struct i2c_adapter *adapter = client->adapter; 419 struct i2c_adapter *adapter = client->adapter;
420 int vendor, device, revision;
420 421
421 if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) 422 if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
422 return -ENODEV; 423 return -ENODEV;
423 424
424 if (kind <= 0) { 425 vendor = i2c_smbus_read_word_data(client, ICS932S401_REG_VENDOR_REV);
425 int vendor, device, revision; 426 vendor >>= 8;
426 427 revision = vendor >> ICS932S401_REV_SHIFT;
427 vendor = i2c_smbus_read_word_data(client, 428 vendor &= ICS932S401_VENDOR_MASK;
428 ICS932S401_REG_VENDOR_REV); 429 if (vendor != ICS932S401_VENDOR)
429 vendor >>= 8; 430 return -ENODEV;
430 revision = vendor >> ICS932S401_REV_SHIFT; 431
431 vendor &= ICS932S401_VENDOR_MASK; 432 device = i2c_smbus_read_word_data(client, ICS932S401_REG_DEVICE);
432 if (vendor != ICS932S401_VENDOR) 433 device >>= 8;
433 return -ENODEV; 434 if (device != ICS932S401_DEVICE)
434 435 return -ENODEV;
435 device = i2c_smbus_read_word_data(client, 436
436 ICS932S401_REG_DEVICE); 437 if (revision != ICS932S401_REV)
437 device >>= 8; 438 dev_info(&adapter->dev, "Unknown revision %d\n", revision);
438 if (device != ICS932S401_DEVICE)
439 return -ENODEV;
440
441 if (revision != ICS932S401_REV)
442 dev_info(&adapter->dev, "Unknown revision %d\n",
443 revision);
444 } else
445 dev_dbg(&adapter->dev, "detection forced\n");
446 439
447 strlcpy(info->type, "ics932s401", I2C_NAME_SIZE); 440 strlcpy(info->type, "ics932s401", I2C_NAME_SIZE);
448 441
diff --git a/include/linux/i2c.h b/include/linux/i2c.h
index 7b40cda57a70..419ab546b266 100644
--- a/include/linux/i2c.h
+++ b/include/linux/i2c.h
@@ -110,7 +110,7 @@ extern s32 i2c_smbus_write_i2c_block_data(struct i2c_client *client,
110 * @driver: Device driver model driver 110 * @driver: Device driver model driver
111 * @id_table: List of I2C devices supported by this driver 111 * @id_table: List of I2C devices supported by this driver
112 * @detect: Callback for device detection 112 * @detect: Callback for device detection
113 * @address_data: The I2C addresses to probe, ignore or force (for detect) 113 * @address_data: The I2C addresses to probe (for detect)
114 * @clients: List of detected clients we created (for i2c-core use only) 114 * @clients: List of detected clients we created (for i2c-core use only)
115 * 115 *
116 * The driver.owner field should be set to the module owner of this driver. 116 * The driver.owner field should be set to the module owner of this driver.
@@ -338,8 +338,7 @@ struct i2c_adapter {
338 void *algo_data; 338 void *algo_data;
339 339
340 /* data fields that are valid for all devices */ 340 /* data fields that are valid for all devices */
341 u8 level; /* nesting level for lockdep */ 341 struct rt_mutex bus_lock;
342 struct mutex bus_lock;
343 342
344 int timeout; /* in jiffies */ 343 int timeout; /* in jiffies */
345 int retries; 344 int retries;
@@ -367,7 +366,7 @@ static inline void i2c_set_adapdata(struct i2c_adapter *dev, void *data)
367 */ 366 */
368static inline void i2c_lock_adapter(struct i2c_adapter *adapter) 367static inline void i2c_lock_adapter(struct i2c_adapter *adapter)
369{ 368{
370 mutex_lock(&adapter->bus_lock); 369 rt_mutex_lock(&adapter->bus_lock);
371} 370}
372 371
373/** 372/**
@@ -376,7 +375,7 @@ static inline void i2c_lock_adapter(struct i2c_adapter *adapter)
376 */ 375 */
377static inline void i2c_unlock_adapter(struct i2c_adapter *adapter) 376static inline void i2c_unlock_adapter(struct i2c_adapter *adapter)
378{ 377{
379 mutex_unlock(&adapter->bus_lock); 378 rt_mutex_unlock(&adapter->bus_lock);
380} 379}
381 380
382/*flags for the client struct: */ 381/*flags for the client struct: */
@@ -398,9 +397,6 @@ static inline void i2c_unlock_adapter(struct i2c_adapter *adapter)
398 */ 397 */
399struct i2c_client_address_data { 398struct i2c_client_address_data {
400 const unsigned short *normal_i2c; 399 const unsigned short *normal_i2c;
401 const unsigned short *probe;
402 const unsigned short *ignore;
403 const unsigned short * const *forces;
404}; 400};
405 401
406/* Internal numbers to terminate lists */ 402/* Internal numbers to terminate lists */
@@ -614,134 +610,48 @@ union i2c_smbus_data {
614 module_param_array(var, short, &var##_num, 0); \ 610 module_param_array(var, short, &var##_num, 0); \
615 MODULE_PARM_DESC(var, desc) 611 MODULE_PARM_DESC(var, desc)
616 612
617#define I2C_CLIENT_MODULE_PARM_FORCE(name) \
618I2C_CLIENT_MODULE_PARM(force_##name, \
619 "List of adapter,address pairs which are " \
620 "unquestionably assumed to contain a `" \
621 # name "' chip")
622
623
624#define I2C_CLIENT_INSMOD_COMMON \ 613#define I2C_CLIENT_INSMOD_COMMON \
625I2C_CLIENT_MODULE_PARM(probe, "List of adapter,address pairs to scan " \
626 "additionally"); \
627I2C_CLIENT_MODULE_PARM(ignore, "List of adapter,address pairs not to " \
628 "scan"); \
629static const struct i2c_client_address_data addr_data = { \ 614static const struct i2c_client_address_data addr_data = { \
630 .normal_i2c = normal_i2c, \ 615 .normal_i2c = normal_i2c, \
631 .probe = probe, \
632 .ignore = ignore, \
633 .forces = forces, \
634} 616}
635 617
636#define I2C_CLIENT_FORCE_TEXT \
637 "List of adapter,address pairs to boldly assume to be present"
638
639/* These are the ones you want to use in your own drivers. Pick the one 618/* These are the ones you want to use in your own drivers. Pick the one
640 which matches the number of devices the driver differenciates between. */ 619 which matches the number of devices the driver differenciates between. */
641#define I2C_CLIENT_INSMOD \ 620#define I2C_CLIENT_INSMOD \
642I2C_CLIENT_MODULE_PARM(force, I2C_CLIENT_FORCE_TEXT); \
643static const unsigned short * const forces[] = { force, NULL }; \
644I2C_CLIENT_INSMOD_COMMON 621I2C_CLIENT_INSMOD_COMMON
645 622
646#define I2C_CLIENT_INSMOD_1(chip1) \ 623#define I2C_CLIENT_INSMOD_1(chip1) \
647enum chips { any_chip, chip1 }; \ 624enum chips { any_chip, chip1 }; \
648I2C_CLIENT_MODULE_PARM(force, I2C_CLIENT_FORCE_TEXT); \
649I2C_CLIENT_MODULE_PARM_FORCE(chip1); \
650static const unsigned short * const forces[] = { force, \
651 force_##chip1, NULL }; \
652I2C_CLIENT_INSMOD_COMMON 625I2C_CLIENT_INSMOD_COMMON
653 626
654#define I2C_CLIENT_INSMOD_2(chip1, chip2) \ 627#define I2C_CLIENT_INSMOD_2(chip1, chip2) \
655enum chips { any_chip, chip1, chip2 }; \ 628enum chips { any_chip, chip1, chip2 }; \
656I2C_CLIENT_MODULE_PARM(force, I2C_CLIENT_FORCE_TEXT); \
657I2C_CLIENT_MODULE_PARM_FORCE(chip1); \
658I2C_CLIENT_MODULE_PARM_FORCE(chip2); \
659static const unsigned short * const forces[] = { force, \
660 force_##chip1, force_##chip2, NULL }; \
661I2C_CLIENT_INSMOD_COMMON 629I2C_CLIENT_INSMOD_COMMON
662 630
663#define I2C_CLIENT_INSMOD_3(chip1, chip2, chip3) \ 631#define I2C_CLIENT_INSMOD_3(chip1, chip2, chip3) \
664enum chips { any_chip, chip1, chip2, chip3 }; \ 632enum chips { any_chip, chip1, chip2, chip3 }; \
665I2C_CLIENT_MODULE_PARM(force, I2C_CLIENT_FORCE_TEXT); \
666I2C_CLIENT_MODULE_PARM_FORCE(chip1); \
667I2C_CLIENT_MODULE_PARM_FORCE(chip2); \
668I2C_CLIENT_MODULE_PARM_FORCE(chip3); \
669static const unsigned short * const forces[] = { force, \
670 force_##chip1, force_##chip2, force_##chip3, NULL }; \
671I2C_CLIENT_INSMOD_COMMON 633I2C_CLIENT_INSMOD_COMMON
672 634
673#define I2C_CLIENT_INSMOD_4(chip1, chip2, chip3, chip4) \ 635#define I2C_CLIENT_INSMOD_4(chip1, chip2, chip3, chip4) \
674enum chips { any_chip, chip1, chip2, chip3, chip4 }; \ 636enum chips { any_chip, chip1, chip2, chip3, chip4 }; \
675I2C_CLIENT_MODULE_PARM(force, I2C_CLIENT_FORCE_TEXT); \
676I2C_CLIENT_MODULE_PARM_FORCE(chip1); \
677I2C_CLIENT_MODULE_PARM_FORCE(chip2); \
678I2C_CLIENT_MODULE_PARM_FORCE(chip3); \
679I2C_CLIENT_MODULE_PARM_FORCE(chip4); \
680static const unsigned short * const forces[] = { force, \
681 force_##chip1, force_##chip2, force_##chip3, \
682 force_##chip4, NULL}; \
683I2C_CLIENT_INSMOD_COMMON 637I2C_CLIENT_INSMOD_COMMON
684 638
685#define I2C_CLIENT_INSMOD_5(chip1, chip2, chip3, chip4, chip5) \ 639#define I2C_CLIENT_INSMOD_5(chip1, chip2, chip3, chip4, chip5) \
686enum chips { any_chip, chip1, chip2, chip3, chip4, chip5 }; \ 640enum chips { any_chip, chip1, chip2, chip3, chip4, chip5 }; \
687I2C_CLIENT_MODULE_PARM(force, I2C_CLIENT_FORCE_TEXT); \
688I2C_CLIENT_MODULE_PARM_FORCE(chip1); \
689I2C_CLIENT_MODULE_PARM_FORCE(chip2); \
690I2C_CLIENT_MODULE_PARM_FORCE(chip3); \
691I2C_CLIENT_MODULE_PARM_FORCE(chip4); \
692I2C_CLIENT_MODULE_PARM_FORCE(chip5); \
693static const unsigned short * const forces[] = { force, \
694 force_##chip1, force_##chip2, force_##chip3, \
695 force_##chip4, force_##chip5, NULL }; \
696I2C_CLIENT_INSMOD_COMMON 641I2C_CLIENT_INSMOD_COMMON
697 642
698#define I2C_CLIENT_INSMOD_6(chip1, chip2, chip3, chip4, chip5, chip6) \ 643#define I2C_CLIENT_INSMOD_6(chip1, chip2, chip3, chip4, chip5, chip6) \
699enum chips { any_chip, chip1, chip2, chip3, chip4, chip5, chip6 }; \ 644enum chips { any_chip, chip1, chip2, chip3, chip4, chip5, chip6 }; \
700I2C_CLIENT_MODULE_PARM(force, I2C_CLIENT_FORCE_TEXT); \
701I2C_CLIENT_MODULE_PARM_FORCE(chip1); \
702I2C_CLIENT_MODULE_PARM_FORCE(chip2); \
703I2C_CLIENT_MODULE_PARM_FORCE(chip3); \
704I2C_CLIENT_MODULE_PARM_FORCE(chip4); \
705I2C_CLIENT_MODULE_PARM_FORCE(chip5); \
706I2C_CLIENT_MODULE_PARM_FORCE(chip6); \
707static const unsigned short * const forces[] = { force, \
708 force_##chip1, force_##chip2, force_##chip3, \
709 force_##chip4, force_##chip5, force_##chip6, NULL }; \
710I2C_CLIENT_INSMOD_COMMON 645I2C_CLIENT_INSMOD_COMMON
711 646
712#define I2C_CLIENT_INSMOD_7(chip1, chip2, chip3, chip4, chip5, chip6, chip7) \ 647#define I2C_CLIENT_INSMOD_7(chip1, chip2, chip3, chip4, chip5, chip6, chip7) \
713enum chips { any_chip, chip1, chip2, chip3, chip4, chip5, chip6, \ 648enum chips { any_chip, chip1, chip2, chip3, chip4, chip5, chip6, \
714 chip7 }; \ 649 chip7 }; \
715I2C_CLIENT_MODULE_PARM(force, I2C_CLIENT_FORCE_TEXT); \
716I2C_CLIENT_MODULE_PARM_FORCE(chip1); \
717I2C_CLIENT_MODULE_PARM_FORCE(chip2); \
718I2C_CLIENT_MODULE_PARM_FORCE(chip3); \
719I2C_CLIENT_MODULE_PARM_FORCE(chip4); \
720I2C_CLIENT_MODULE_PARM_FORCE(chip5); \
721I2C_CLIENT_MODULE_PARM_FORCE(chip6); \
722I2C_CLIENT_MODULE_PARM_FORCE(chip7); \
723static const unsigned short * const forces[] = { force, \
724 force_##chip1, force_##chip2, force_##chip3, \
725 force_##chip4, force_##chip5, force_##chip6, \
726 force_##chip7, NULL }; \
727I2C_CLIENT_INSMOD_COMMON 650I2C_CLIENT_INSMOD_COMMON
728 651
729#define I2C_CLIENT_INSMOD_8(chip1, chip2, chip3, chip4, chip5, chip6, chip7, chip8) \ 652#define I2C_CLIENT_INSMOD_8(chip1, chip2, chip3, chip4, chip5, chip6, chip7, chip8) \
730enum chips { any_chip, chip1, chip2, chip3, chip4, chip5, chip6, \ 653enum chips { any_chip, chip1, chip2, chip3, chip4, chip5, chip6, \
731 chip7, chip8 }; \ 654 chip7, chip8 }; \
732I2C_CLIENT_MODULE_PARM(force, I2C_CLIENT_FORCE_TEXT); \
733I2C_CLIENT_MODULE_PARM_FORCE(chip1); \
734I2C_CLIENT_MODULE_PARM_FORCE(chip2); \
735I2C_CLIENT_MODULE_PARM_FORCE(chip3); \
736I2C_CLIENT_MODULE_PARM_FORCE(chip4); \
737I2C_CLIENT_MODULE_PARM_FORCE(chip5); \
738I2C_CLIENT_MODULE_PARM_FORCE(chip6); \
739I2C_CLIENT_MODULE_PARM_FORCE(chip7); \
740I2C_CLIENT_MODULE_PARM_FORCE(chip8); \
741static const unsigned short * const forces[] = { force, \
742 force_##chip1, force_##chip2, force_##chip3, \
743 force_##chip4, force_##chip5, force_##chip6, \
744 force_##chip7, force_##chip8, NULL }; \
745I2C_CLIENT_INSMOD_COMMON 655I2C_CLIENT_INSMOD_COMMON
746#endif /* __KERNEL__ */ 656#endif /* __KERNEL__ */
747#endif /* _LINUX_I2C_H */ 657#endif /* _LINUX_I2C_H */
generated by cgit v1.2.2 (git 2.25.0) at 2025-10-30 04:16:55 -0400