Re: [PATCH V4] i2c: Add generic I2C multiplexer using pinctrl API

On Fri, May 18, 2012 at 09:29:34AM -0600, Stephen Warren wrote:

From: Stephen Warren <redacted>

This is useful for SoCs whose I2C module's signals can be routed to
different sets of pins at run-time, using the pinctrl API.

                                 +-----+  +-----+
                                 | dev |  | dev |
    +------------------------+   +-----+  +-----+
    | SoC                    |      |        |
    |                   /----|------+--------+
    |   +---+   +------+     | child bus A, on first set of pins
    |   |I2C|---|Pinmux|     |
    |   +---+   +------+     | child bus B, on second set of pins
    |                   \----|------+--------+--------+
    |                        |      |        |        |
    +------------------------+  +-----+  +-----+  +-----+
                                | dev |  | dev |  | dev |
                                +-----+  +-----+  +-----+

Signed-off-by: Stephen Warren <redacted>
Acked-by: Linus Walleij <redacted>
Acked-by: Rob Herring <rob.herring-bsGFqQB8/DxBDgjK7y7TUQ@public.gmane.org>
---
Wolfram, when you apply this for 3.6, could you please put just this
patch into a stable topic branch - that way, I can merge this into a
Tegra branch too so that I can use the new driver in 3.6.

Thanks, looks good to me. I think I'll wait for rc1 and try to convince
Linus to apply the new driver rule, so we can have it in 3.5 already.

Regards,

  Wolfram

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