diff options
| author | Jean Delvare <khali@linux-fr.org> | 2007-10-07 12:25:46 +0200 |
|---|---|---|
| committer | Mark M. Hoffman <mhoffman@lightlink.com> | 2008-02-08 02:39:40 +0100 |
| commit | 6722feada7f6213ba06d510ef853e57ddcd59dae (patch) | |
| tree | 5b6f21f4b961795d3202b4ea88a7aadb80eabe1d | |
| parent | dmi: Let drivers walk the DMI table (diff) | |
| download | linux-6722feada7f6213ba06d510ef853e57ddcd59dae.tar.xz linux-6722feada7f6213ba06d510ef853e57ddcd59dae.zip | |
hwmon: (lm78/w83781d) Probe fewer I2C addresses
We've never seen any device supported by the lm78 or w83781d driver at
addresses 0x20-0x27, so let's stop probing these addresses. Extra probes cost
time, and have potential for confusing or misdetecting other I2C devices.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Mark M. Hoffman <mhoffman@lightlink.com>
| -rw-r--r-- | Documentation/hwmon/lm78 | 4 | ||||
| -rw-r--r-- | Documentation/hwmon/w83781d | 6 | ||||
| -rw-r--r-- | drivers/hwmon/lm78.c | 6 | ||||
| -rw-r--r-- | drivers/hwmon/w83781d.c | 7 |
4 files changed, 10 insertions, 13 deletions
diff --git a/Documentation/hwmon/lm78 b/Documentation/hwmon/lm78 index dfc318a60fd4..60932e26abaa 100644 --- a/Documentation/hwmon/lm78 +++ b/Documentation/hwmon/lm78 @@ -4,12 +4,12 @@ Kernel driver lm78 Supported chips: * National Semiconductor LM78 / LM78-J Prefix: 'lm78' - Addresses scanned: I2C 0x20 - 0x2f, ISA 0x290 (8 I/O ports) + Addresses scanned: I2C 0x28 - 0x2f, ISA 0x290 (8 I/O ports) Datasheet: Publicly available at the National Semiconductor website http://www.national.com/ * National Semiconductor LM79 Prefix: 'lm79' - Addresses scanned: I2C 0x20 - 0x2f, ISA 0x290 (8 I/O ports) + Addresses scanned: I2C 0x28 - 0x2f, ISA 0x290 (8 I/O ports) Datasheet: Publicly available at the National Semiconductor website http://www.national.com/ diff --git a/Documentation/hwmon/w83781d b/Documentation/hwmon/w83781d index b1e9f80098ee..dbeadb269a69 100644 --- a/Documentation/hwmon/w83781d +++ b/Documentation/hwmon/w83781d @@ -4,11 +4,11 @@ Kernel driver w83781d Supported chips: * Winbond W83781D Prefix: 'w83781d' - Addresses scanned: I2C 0x20 - 0x2f, ISA 0x290 (8 I/O ports) + Addresses scanned: I2C 0x28 - 0x2f, ISA 0x290 (8 I/O ports) Datasheet: http://www.winbond-usa.com/products/winbond_products/pdfs/PCIC/w83781d.pdf * Winbond W83782D Prefix: 'w83782d' - Addresses scanned: I2C 0x20 - 0x2f, ISA 0x290 (8 I/O ports) + Addresses scanned: I2C 0x28 - 0x2f, ISA 0x290 (8 I/O ports) Datasheet: http://www.winbond.com/PDF/sheet/w83782d.pdf * Winbond W83783S Prefix: 'w83783s' @@ -16,7 +16,7 @@ Supported chips: Datasheet: http://www.winbond-usa.com/products/winbond_products/pdfs/PCIC/w83783s.pdf * Winbond W83627HF Prefix: 'w83627hf' - Addresses scanned: I2C 0x20 - 0x2f, ISA 0x290 (8 I/O ports) + Addresses scanned: I2C 0x28 - 0x2f, ISA 0x290 (8 I/O ports) Datasheet: http://www.winbond.com/PDF/sheet/w83627hf.pdf * Asus AS99127F Prefix: 'as99127f' diff --git a/drivers/hwmon/lm78.c b/drivers/hwmon/lm78.c index 3f7055ee679f..934378eb4f8f 100644 --- a/drivers/hwmon/lm78.c +++ b/drivers/hwmon/lm78.c @@ -37,10 +37,8 @@ static struct platform_device *pdev; /* Addresses to scan */ -static unsigned short normal_i2c[] = { 0x20, 0x21, 0x22, 0x23, 0x24, - 0x25, 0x26, 0x27, 0x28, 0x29, - 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, - 0x2f, I2C_CLIENT_END }; +static unsigned short normal_i2c[] = { 0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, + 0x2e, 0x2f, I2C_CLIENT_END }; static unsigned short isa_address = 0x290; /* Insmod parameters */ diff --git a/drivers/hwmon/w83781d.c b/drivers/hwmon/w83781d.c index e0fa7520400d..d38b9ede3abd 100644 --- a/drivers/hwmon/w83781d.c +++ b/drivers/hwmon/w83781d.c @@ -54,9 +54,8 @@ static struct platform_device *pdev; /* Addresses to scan */ -static unsigned short normal_i2c[] = { 0x20, 0x21, 0x22, 0x23, 0x24, 0x25, - 0x26, 0x27, 0x28, 0x29, 0x2a, 0x2b, - 0x2c, 0x2d, 0x2e, 0x2f, I2C_CLIENT_END }; +static unsigned short normal_i2c[] = { 0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, + 0x2e, 0x2f, I2C_CLIENT_END }; static unsigned short isa_address = 0x290; /* Insmod parameters */ @@ -1270,7 +1269,7 @@ w83781d_detect(struct i2c_adapter *adapter, int address, int kind) kind = w83783s; else if (val1 == 0x21 && vendid == winbond) kind = w83627hf; - else if (val1 == 0x31 && address >= 0x28) + else if (val1 == 0x31) kind = as99127f; else { if (kind == 0) |