Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753352AbcLGQvr (ORCPT ); Wed, 7 Dec 2016 11:51:47 -0500 Received: from mail-wj0-f195.google.com ([209.85.210.195]:34593 "EHLO mail-wj0-f195.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752425AbcLGQvp (ORCPT ); Wed, 7 Dec 2016 11:51:45 -0500 From: "M'boumba Cedric Madianga" To: wsa@the-dreams.de, robh+dt@kernel.org, mcoquelin.stm32@gmail.com, alexandre.torgue@st.com, linus.walleij@linaro.org, patrice.chotard@st.com, linux@armlinux.org.uk, linux-i2c@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Cc: "M'boumba Cedric Madianga" Subject: [PATCH v4 0/5] Add support for the STM32F4 I2C Date: Wed, 7 Dec 2016 17:51:27 +0100 Message-Id: <1481129492-26600-1-git-send-email-cedric.madianga@gmail.com> X-Mailer: git-send-email 1.9.1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1576 Lines: 35 This patchset adds support for the I2C controller embedded in STM32F4xx SoC. It enables I2C transfer in interrupt mode with Standard-mode and Fast-mode bus speed. Changes since v3 after Wolfram's review: - Add COMPILE_TEST flag in Kconfig - Use correct driver name in Kconfig i.e i2c-stm32f4 instead of i2c-st - Use more comprehensible name stm32f4_i2c_msg for client specific data - Don't store reset control node as just needed in probe - Use clamp() function to test value between 2 ranges - Use new "i2c_8bit_addr_from_msg() function to build I2C address - Don't write error messages for timeout - Remove error message when i2c_add_adapter() fails as it is already handled by the i2c core driver M'boumba Cedric Madianga (5): dt-bindings: Document the STM32 I2C bindings i2c: Add STM32F4 I2C driver ARM: dts: Add I2C1 support for STM32F429 SoC ARM: dts: Add I2C1 support for STM32429 eval board ARM: configs: Add I2C support for STM32 defconfig .../devicetree/bindings/i2c/i2c-stm32.txt | 33 + arch/arm/boot/dts/stm32429i-eval.dts | 6 + arch/arm/boot/dts/stm32f429.dtsi | 23 + arch/arm/configs/stm32_defconfig | 3 + drivers/i2c/busses/Kconfig | 10 + drivers/i2c/busses/Makefile | 1 + drivers/i2c/busses/i2c-stm32f4.c | 857 +++++++++++++++++++++ 7 files changed, 933 insertions(+) create mode 100644 Documentation/devicetree/bindings/i2c/i2c-stm32.txt create mode 100644 drivers/i2c/busses/i2c-stm32f4.c -- 1.9.1