From mboxrd@z Thu Jan 1 00:00:00 1970 From: Wolfram Sang Subject: [RFC 0/9] i2c: add generic support for timing parameters Date: Thu, 26 Nov 2015 23:59:08 +0100 Message-ID: <1448578757-12613-1-git-send-email-wsa@the-dreams.de> Return-path: Received: from sauhun.de ([89.238.76.85]:36517 "EHLO pokefinder.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753161AbbKZW7X (ORCPT ); Thu, 26 Nov 2015 17:59:23 -0500 Sender: linux-i2c-owner@vger.kernel.org List-Id: linux-i2c@vger.kernel.org To: linux-i2c@vger.kernel.org Cc: linux-sh@vger.kernel.org, Magnus Damm , Simon Horman , Laurent Pinchart , Geert Uytterhoeven , Wolfram Sang , Yoshihiro Shimoda 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