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| author | Heiner Kallweit <hkallweit1@gmail.com> | 2022-12-19 21:15:25 +0300 |
|---|---|---|
| committer | Wolfram Sang <wsa@kernel.org> | 2023-02-13 00:10:45 +0300 |
| commit | e98a3bc0403bc60e949b565f3b36c6aed399a976 (patch) | |
| tree | deff01da44555efd65afa9d4bad637156487362f /drivers/i2c/busses/i2c-i801.c | |
| parent | f0c8f0ee0787bb6a7f56bc89a7800ffe1ccdfea9 (diff) | |
| download | linux-e98a3bc0403bc60e949b565f3b36c6aed399a976.tar.xz | |
i2c: i801: make FEATURE_BLOCK_PROC dependent on FEATURE_BLOCK_BUFFER
According to the datasheet the block process call requires block
buffer mode. The user may disable block buffer mode by module
parameter disable_features, in such a case we have to clear
FEATURE_BLOCK_PROC.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Reviewed-by: Jean Delvare <jdelvare@suse.de>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Diffstat (limited to 'drivers/i2c/busses/i2c-i801.c')
| -rw-r--r-- | drivers/i2c/busses/i2c-i801.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/i2c/busses/i2c-i801.c b/drivers/i2c/busses/i2c-i801.c index 45c2ebe40e82..2e9c5856a29f 100644 --- a/drivers/i2c/busses/i2c-i801.c +++ b/drivers/i2c/busses/i2c-i801.c @@ -1658,6 +1658,10 @@ static int i801_probe(struct pci_dev *dev, const struct pci_device_id *id) } priv->features &= ~disable_features; + /* The block process call uses block buffer mode */ + if (!(priv->features & FEATURE_BLOCK_BUFFER)) + priv->features &= ~FEATURE_BLOCK_PROC; + err = pcim_enable_device(dev); if (err) { dev_err(&dev->dev, "Failed to enable SMBus PCI device (%d)\n", |