From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751759AbdH3O7j (ORCPT ); Wed, 30 Aug 2017 10:59:39 -0400 Received: from mx08-00178001.pphosted.com ([91.207.212.93]:42274 "EHLO mx07-00178001.pphosted.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1751326AbdH3O7h (ORCPT ); Wed, 30 Aug 2017 10:59:37 -0400 From: Alexandre Torgue To: Maxime Coquelin , Linus Walleij , Rob Herring , Mark Rutland , Arnd Bergmann , Russell King CC: , , , , Benjamin Gaignard Subject: [PATCH v4] ARM: dts: stm32: change pinctrl bindings definition Date: Wed, 30 Aug 2017 16:50:52 +0200 Message-ID: <1504104653-26804-1-git-send-email-alexandre.torgue@st.com> X-Mailer: git-send-email 2.7.4 MIME-Version: 1.0 Content-Type: text/plain X-Originating-IP: [10.75.127.50] X-ClientProxiedBy: SFHDAG5NODE2.st.com (10.75.127.14) To SFHDAG3NODE2.st.com (10.75.127.8) X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:,, definitions=2017-08-30_06:,, signatures=0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Initially each pin was declared in "include/dt-bindings/stm32-pinfunc.h" and each definition contained SOC names (ex: STM32F429_PA9_FUNC_USART1_TX). Since this approach was approved, the number of supported MCU has increased (STM32F429/STM32F469/STM32f746/STM32H743). To avoid to add a new file in "include/dt-bindings" each time a new STM32 SOC arrives I propose a new approach which consist to use a macro to define pin muxing in device tree. All STM32 DT will use the common macro to define pinmux. Furthermore, it will make maintenance and integration of new SOC easier. I made only one patch to avoid dependencies. Let me know if you prefer that I split it. To check that patch generate same dtb than befrore I used dtc binary to (re)generate dts files (before and after apply the series). Example on stm32f469-disco: ./scripts/dtc/dtc -I dtb -O dts -o stm32f469-disco-after.dts stm32f469-disco-after.dtb ./scripts/dtc/dtc -I dtb -O dts -o stm32f469-disco-before.dts stm32f469-disco-before.dtb Then diff -u stm32f469-disco-before.dts stm32f469-disco-after.dts Changes since v3: -Rewrite documentation part -Simplify macro Changes since v2: -Drop RFC tag -Add reviewers -Enhance modifications to all STM32 (F4/F7/H7) Changes since v1: -According to Vikas Manocha review, use generic macro to define port. Regards Alex Alexandre Torgue (1): ARM: dts: stm32: change pinctrl bindings definition .../bindings/pinctrl/st,stm32-pinctrl.txt | 22 +- arch/arm/boot/dts/stm32f429.dtsi | 176 +-- arch/arm/boot/dts/stm32f746.dtsi | 10 +- arch/arm/boot/dts/stm32h743-pinctrl.dtsi | 10 +- include/dt-bindings/pinctrl/stm32-pinfunc.h | 30 + include/dt-bindings/pinctrl/stm32f429-pinfunc.h | 1239 --------------- include/dt-bindings/pinctrl/stm32f746-pinfunc.h | 1324 ---------------- include/dt-bindings/pinctrl/stm32h7-pinfunc.h | 1612 -------------------- 8 files changed, 148 insertions(+), 4275 deletions(-) create mode 100644 include/dt-bindings/pinctrl/stm32-pinfunc.h delete mode 100644 include/dt-bindings/pinctrl/stm32f429-pinfunc.h delete mode 100644 include/dt-bindings/pinctrl/stm32f746-pinfunc.h delete mode 100644 include/dt-bindings/pinctrl/stm32h7-pinfunc.h -- 2.7.4