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authorHeiner Kallweit <hkallweit1@gmail.com>2022-12-19 21:15:25 +0300
committerWolfram Sang <wsa@kernel.org>2023-02-13 00:10:45 +0300
commite98a3bc0403bc60e949b565f3b36c6aed399a976 (patch)
treedeff01da44555efd65afa9d4bad637156487362f /drivers/i2c/busses/i2c-i801.c
parentf0c8f0ee0787bb6a7f56bc89a7800ffe1ccdfea9 (diff)
downloadlinux-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.c4
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",