| Message ID | 20220127175013.3689724-1-robert.hancock@calian.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | i2c: xiic: Make bus names unique | expand |
On Thu, Jan 27, 2022 at 11:50:13AM -0600, Robert Hancock wrote: > This driver is for an FPGA logic core, so there can be arbitrarily many > instances of the bus on a given system. Previously all of the I2C bus > names were "xiic-i2c" which caused issues with lm_sensors when trying to > map human-readable names to sensor inputs because it could not properly > distinguish the busses, for example. Append the platform device name to > the I2C bus name so it is unique between different instances. > > Fixes: e1d5b6598cdc ("i2c: Add support for Xilinx XPS IIC Bus Interface") > Signed-off-by: Robert Hancock <robert.hancock@calian.com> Michal, is this okay with you?
On 3/1/22 22:43, Wolfram Sang wrote: > On Thu, Jan 27, 2022 at 11:50:13AM -0600, Robert Hancock wrote: >> This driver is for an FPGA logic core, so there can be arbitrarily many >> instances of the bus on a given system. Previously all of the I2C bus >> names were "xiic-i2c" which caused issues with lm_sensors when trying to >> map human-readable names to sensor inputs because it could not properly >> distinguish the busses, for example. Append the platform device name to >> the I2C bus name so it is unique between different instances. >> >> Fixes: e1d5b6598cdc ("i2c: Add support for Xilinx XPS IIC Bus Interface") >> Signed-off-by: Robert Hancock <robert.hancock@calian.com> > > Michal, is this okay with you? > Origin state ~# cat /sys/class/i2c-adapter/i2c-0/name xiic-i2c new state. ~# cat /sys/class/i2c-adapter/i2c-0/name xiic-i2c 40800000.i2c I am fine with it. Tested-by: Michal Simek <michal.simek@xilinx.com> Thanks, Michal
On Thu, Jan 27, 2022 at 11:50:13AM -0600, Robert Hancock wrote: > This driver is for an FPGA logic core, so there can be arbitrarily many > instances of the bus on a given system. Previously all of the I2C bus > names were "xiic-i2c" which caused issues with lm_sensors when trying to > map human-readable names to sensor inputs because it could not properly > distinguish the busses, for example. Append the platform device name to > the I2C bus name so it is unique between different instances. > > Fixes: e1d5b6598cdc ("i2c: Add support for Xilinx XPS IIC Bus Interface") > Signed-off-by: Robert Hancock <robert.hancock@calian.com> Applied to for-next, thanks!
diff --git a/drivers/i2c/busses/i2c-xiic.c b/drivers/i2c/busses/i2c-xiic.c index eb789cfb9973..ffefe3c482e9 100644 --- a/drivers/i2c/busses/i2c-xiic.c +++ b/drivers/i2c/busses/i2c-xiic.c @@ -734,7 +734,6 @@ static const struct i2c_adapter_quirks xiic_quirks = { static const struct i2c_adapter xiic_adapter = { .owner = THIS_MODULE, - .name = DRIVER_NAME, .class = I2C_CLASS_DEPRECATED, .algo = &xiic_algorithm, .quirks = &xiic_quirks, @@ -771,6 +770,8 @@ static int xiic_i2c_probe(struct platform_device *pdev) i2c_set_adapdata(&i2c->adap, i2c); i2c->adap.dev.parent = &pdev->dev; i2c->adap.dev.of_node = pdev->dev.of_node; + snprintf(i2c->adap.name, sizeof(i2c->adap.name), + DRIVER_NAME " %s", pdev->name); mutex_init(&i2c->lock);
This driver is for an FPGA logic core, so there can be arbitrarily many instances of the bus on a given system. Previously all of the I2C bus names were "xiic-i2c" which caused issues with lm_sensors when trying to map human-readable names to sensor inputs because it could not properly distinguish the busses, for example. Append the platform device name to the I2C bus name so it is unique between different instances. Fixes: e1d5b6598cdc ("i2c: Add support for Xilinx XPS IIC Bus Interface") Signed-off-by: Robert Hancock <robert.hancock@calian.com> --- drivers/i2c/busses/i2c-xiic.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)