diff options
| author | Bitan Biswas <bbiswas@nvidia.com> | 2011-08-12 14:56:17 +0530 |
|---|---|---|
| committer | Dan Willemsen <dwillemsen@nvidia.com> | 2011-11-30 21:48:19 -0800 |
| commit | 51c4dfe933c2238d671630e979725b1684d3ae49 (patch) | |
| tree | 19ff6044397d3f36fd264b36fd590c3e886bd76a /drivers/hwmon | |
| parent | 70bdb9d0205a0e5197a09dd4c44617e01bd60411 (diff) | |
hwmon: tegra: tsensor: fuse revision corrected
tsensor functionality is enabled based on fuse revision.
The fuse revision is to be interpreted as an unsigned integer
while it is interpreted as a decimal number. Corrected this.
bug 863460
Original-Change-Id: I42dbfe406c3ee5b016664410db1b916997e1fe60
Reviewed-on: http://git-master/r/46899
Reviewed-by: Varun Colbert <vcolbert@nvidia.com>
Tested-by: Varun Colbert <vcolbert@nvidia.com>
Rebase-Id: R52f072ab4fc835ae803f4e44fcca768c751d9e4c
Diffstat (limited to 'drivers/hwmon')
| -rw-r--r-- | drivers/hwmon/tegra-tsensor.c | 16 |
1 files changed, 11 insertions, 5 deletions
diff --git a/drivers/hwmon/tegra-tsensor.c b/drivers/hwmon/tegra-tsensor.c index c28733f51e8c..025be5426b92 100644 --- a/drivers/hwmon/tegra-tsensor.c +++ b/drivers/hwmon/tegra-tsensor.c @@ -1615,16 +1615,22 @@ static int __devinit tegra_tsensor_probe(struct platform_device *pdev) goto err5; } + /* fuse revisions less than TSENSOR_FUSE_REVISION_DECIMAL_REV1 + bypass tsensor driver init */ /* tsensor active instance decided based on fuse revision */ err = tegra_fuse_get_revision(®); if (err) goto err6; - /* instance 1 is used for fuse revision 8 till 20 */ - /* instance 0 is used for fuse revision 21 onwards */ - if ((reg & 0xf) >= TSENSOR_FUSE_REVISION_DECIMAL_REV1) - tsensor_index = 1; - else if ((reg & 0xf) >= TSENSOR_FUSE_REVISION_DECIMAL_REV2) + /* check for higher revision done first */ + /* instance 0 is used for fuse revision + TSENSOR_FUSE_REVISION_DECIMAL_REV2 onwards */ + if (reg >= TSENSOR_FUSE_REVISION_DECIMAL_REV2) tsensor_index = 0; + /* instance 1 is used for fuse revision + TSENSOR_FUSE_REVISION_DECIMAL_REV1 till + TSENSOR_FUSE_REVISION_DECIMAL_REV2 */ + else if (reg >= TSENSOR_FUSE_REVISION_DECIMAL_REV1) + tsensor_index = 1; pr_info("tsensor active instance=%d\n", tsensor_index); /* tegra tsensor - setup and init */ |