Here is a patch series adding DT support for timing parameters like raise-time or falling-time. There is a core function for parsing and an implementation for the RCar driver how to use it. This series is still RFC because some documentation is missing. It worked fine on my Lager board this afternoon. However, since then my Lager board refuses to boot new kernels, even known working branches with known working configs, so I assume the current failure is unrelated. Anyway, this is to let you know what I am up to. Please have a look and comment. Cheers, Wolfram Wolfram Sang (9): i2c: document generic DT bindings for timing parameters i2c: add generic routine to parse DT timing information i2c: rcar: refactor probe function a little i2c: rcar: switch to i2c generic dt parsing i2c: rcar: honor additional i2c timings from DT ARM: shmobile: r8a7790: dtsi: add internal delay for i2c IPs ARM: shmobile: r8a7791: dtsi: add internal delay for i2c IPs ARM: shmobile: r8a7794: dtsi: add internal delay for i2c IPs arm64: renesas: r8a7795: add internal delay for i2c IPs Documentation/devicetree/bindings/i2c/i2c-rcar.txt | 4 ++ Documentation/devicetree/bindings/i2c/i2c.txt | 31 ++++++++-- arch/arm/boot/dts/r8a7790.dtsi | 4 ++ arch/arm/boot/dts/r8a7791.dtsi | 6 ++ arch/arm/boot/dts/r8a7794.dtsi | 6 ++ arch/arm64/boot/dts/renesas/r8a7795.dtsi | 7 +++ drivers/i2c/busses/i2c-rcar.c | 67 +++++++++++----------- drivers/i2c/i2c-core.c | 34 +++++++++++ include/linux/i2c.h | 15 +++++ 9 files changed, 135 insertions(+), 39 deletions(-) -- 2.1.4 -- To unsubscribe from this list: send the line "unsubscribe linux-i2c" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
