diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2009-07-28 14:31:13 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-07-28 14:31:13 -0700 |
| commit | 7d3e91b8a1f5179d56a7412d4b499f2d5fc6b25d (patch) | |
| tree | 50919af840b007509cd961870dbf59e13c2b139f /drivers/hwmon/smsc47m1.c | |
| parent | ddb1d4ede9c8acd2e20ac99bf2b68146ae9f3553 (diff) | |
| parent | 8d282497cbf8124d6814d51a74fb13d69531c669 (diff) | |
Merge branch 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging
* 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging:
hwmon: (asus_atk0110) Fix upper limit readings
hwmon: (smsc47m1) Differentiate between LPC47M233 and LPC47M292
Diffstat (limited to 'drivers/hwmon/smsc47m1.c')
| -rw-r--r-- | drivers/hwmon/smsc47m1.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/hwmon/smsc47m1.c b/drivers/hwmon/smsc47m1.c index a92dbb97ee9..ba75bfcf14c 100644 --- a/drivers/hwmon/smsc47m1.c +++ b/drivers/hwmon/smsc47m1.c @@ -86,6 +86,7 @@ superio_exit(void) #define SUPERIO_REG_ACT 0x30 #define SUPERIO_REG_BASE 0x60 #define SUPERIO_REG_DEVID 0x20 +#define SUPERIO_REG_DEVREV 0x21 /* Logical device registers */ @@ -429,6 +430,9 @@ static int __init smsc47m1_find(unsigned short *addr, * The LPC47M292 (device id 0x6B) is somewhat compatible, but it * supports a 3rd fan, and the pin configuration registers are * unfortunately different. + * The LPC47M233 has the same device id (0x6B) but is not compatible. + * We check the high bit of the device revision register to + * differentiate them. */ switch (val) { case 0x51: @@ -448,6 +452,13 @@ static int __init smsc47m1_find(unsigned short *addr, sio_data->type = smsc47m1; break; case 0x6B: + if (superio_inb(SUPERIO_REG_DEVREV) & 0x80) { + pr_debug(DRVNAME ": " + "Found SMSC LPC47M233, unsupported\n"); + superio_exit(); + return -ENODEV; + } + pr_info(DRVNAME ": Found SMSC LPC47M292\n"); sio_data->type = smsc47m2; break; |