i2c: rcar: add FastMode+ support for Gen4

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To support FM+, we mainly need to turn the SMD constant into a parameter
and set it accordingly. That also means we can finally fix SMD to our
needs instead of bailing out. A sanity check for SMD then becomes a
sanity check for 'x == 0'. After all that, activating the enable bit for
FM+ is all we need to do. Tested with a Renesas Falcon board using R-Car
V3U.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Andi Shyti <andi.shyti@kernel.org>
Signed-off-by: Wolfram Sang <wsa@kernel.org>

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Wolfram Sang 2023-12-14 08:43:58 +01:00 • committed by Wolfram Sang

parent 2b523c46e8

commit d0520eb3ed

1 changed files with 27 additions and 11 deletions

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drivers/i2c/busses/i2c-rcar.c

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