| Message ID | 20090609.102054.125129248.saito@densan.co.jp (mailing list archive) |
|---|---|
| State | Rejected, archived |
| Headers | show |
On Mon, Jun 8, 2009 at 7:20 PM, Hide Saito<hsaito.ppc@gmail.com> wrote: > sensors can't be detected on i2c-mpc > > Hi all, > > The sensors can't be detected on the built-in I2C interface on the Freescale's MPC processors on linux-2.6.29. > If it is not yet fixed, I think that it is forgotten to set the following values in the class. > > Signed-off-by: Hideo Saito <hsaito.ppc@gmail.com> Since i2c probing is hit and miss at best; Most MPCxxxx SPI busses get the i2c bus topology out of the device tree file (arch/powerpc/boot/dts/<board-name>.dts) and do not support probing. If the i2c device you need is missing, then add a node to the .dts file for the missing device (there are lots of examples of this in the dts directory). g.
--- drivers/i2c/busses/i2c-mpc.c.org 2009-03-24 08:12:14.000000000 +0900 +++ drivers/i2c/busses/i2c-mpc.c 2009-06-04 08:50:34.000000000 +0900 @@ -304,16 +304,17 @@ static u32 mpc_functionality(struct i2c_ static const struct i2c_algorithm mpc_algo = { .master_xfer = mpc_xfer, .functionality = mpc_functionality, }; static struct i2c_adapter mpc_ops = { .owner = THIS_MODULE, + .class = I2C_CLASS_HWMON | I2C_CLASS_SPD, .name = "MPC adapter", .algo = &mpc_algo, .timeout = 1, }; static int __devinit fsl_i2c_probe(struct of_device *op, const struct of_device_id *match) { int result = 0;
sensors can't be detected on i2c-mpc Hi all, The sensors can't be detected on the built-in I2C interface on the Freescale's MPC processors on linux-2.6.29. If it is not yet fixed, I think that it is forgotten to set the following values in the class. Signed-off-by: Hideo Saito <hsaito.ppc@gmail.com> ---