diff options
| author | Sven Peter <sven@svenpeter.dev> | 2021-10-08 18:35:32 +0200 |
|---|---|---|
| committer | Wolfram Sang <wsa@kernel.org> | 2021-10-11 11:45:56 +0200 |
| commit | 3abdc89b5e309c63fa631de38cbec0755e5b2ee7 (patch) | |
| tree | ac06149c523e57520fffd697350d50e1f7ec8a17 /drivers/i2c/busses/i2c-pasemi-pci.c | |
| parent | d88ae2932df0e670610cb741fec442ad12466c03 (diff) | |
i2c: pasemi: Set enable bit for Apple variant
Some later revisions after the original PASemi I2C controller introduce
what likely is an enable bit to the CTL register. Without setting it the
actual i2c transmission is never started.
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Sven Peter <sven@svenpeter.dev>
Acked-by: Olof Johansson <olof@lixom.net>
Tested-by: Christian Zigotzky <chzigotzky@xenosoft.de>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Diffstat (limited to 'drivers/i2c/busses/i2c-pasemi-pci.c')
| -rw-r--r-- | drivers/i2c/busses/i2c-pasemi-pci.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/i2c/busses/i2c-pasemi-pci.c b/drivers/i2c/busses/i2c-pasemi-pci.c index 4251e7b9f177..1ab1f28744fb 100644 --- a/drivers/i2c/busses/i2c-pasemi-pci.c +++ b/drivers/i2c/busses/i2c-pasemi-pci.c @@ -42,6 +42,12 @@ static int pasemi_smb_pci_probe(struct pci_dev *dev, size = pci_resource_len(dev, 0); smbus->clk_div = CLK_100K_DIV; + /* + * The original PASemi PCI controllers don't have a register for + * their HW revision. + */ + smbus->hw_rev = PASEMI_HW_REV_PCI; + if (!devm_request_region(&dev->dev, base, size, pasemi_smb_pci_driver.name)) return -EBUSY; |