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Thu, 09 May 2019 10:59:05 +0200 Received: from zeta.dmz-eu.st.com (zeta.dmz-eu.st.com [164.129.230.9]) by beta.dmz-eu.st.com (STMicroelectronics) with ESMTP id 9D72831; Thu, 9 May 2019 08:59:04 +0000 (GMT) Received: from Webmail-eu.st.com (Safex1hubcas21.st.com [10.75.90.44]) by zeta.dmz-eu.st.com (STMicroelectronics) with ESMTP id 5D0B5153D; Thu, 9 May 2019 08:59:04 +0000 (GMT) Received: from SAFEX1HUBCAS24.st.com (10.75.90.95) by SAFEX1HUBCAS21.st.com (10.75.90.44) with Microsoft SMTP Server (TLS) id 14.3.361.1; Thu, 9 May 2019 10:59:04 +0200 Received: from localhost (10.201.20.5) by webmail-ga.st.com (10.75.90.48) with Microsoft SMTP Server (TLS) id 14.3.439.0; Thu, 9 May 2019 10:59:03 +0200 From: Amelie Delaunay To: Lee Jones , Linus Walleij , Rob Herring , Mark Rutland , Alexandre Torgue , "Maxime Coquelin" Subject: [PATCH v6 0/9] Introduce STMFX I2C Multi-Function eXpander Date: Thu, 9 May 2019 10:58:47 +0200 Message-ID: <1557392336-28239-1-git-send-email-amelie.delaunay@st.com> X-Mailer: git-send-email 2.7.4 MIME-Version: 1.0 X-Originating-IP: [10.201.20.5] X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:, , definitions=2019-05-09_02:, , signatures=0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190509_015911_403350_C0261D68 X-CRM114-Status: GOOD ( 16.76 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree@vger.kernel.org, Amelie Delaunay , linux-kernel@vger.kernel.org, linux-gpio@vger.kernel.org, linux-stm32@st-md-mailman.stormreply.com, linux-arm-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP This series adds support for STMicroelectronics Multi-Function eXpander (STMFX), used on some STM32 discovery and evaluation boards. STMFX is an STM32L152 slave controller whose firmware embeds the following features: - I/O expander (16 GPIOs + 8 extra if the other features are not enabled), - resistive touchscreen controller, - IDD measurement. I2C stuff and chip initialization is based on an MFD parent driver, which registers STMFX features MFD children. --- Changes in v6: - mfd: go with Lee's suggestion about vdd regulator management (but initialize ret with PTR_ERR_OR_ZERO to use it in if/else if and error log), also remove backup/restore helpers and move the code in suspend/ resume Changes in v5: - mfd: fix Lee's comments (reorder struct declaration, drop mfd cells platform data initialization, typos) - pinctrl: get stmfx struct through dev_get_drvdata(pdev->dev.parent) instead of dev_get_platdata(&pdev->dev); Changes in v4: - mfd: move registers #define into the header - mfd: merge stmfx and stmfx_ddata structures into one stmfx structure - mfd: change stmfx_chip_init/exit and stmfx_irq_init/exit args: use i2c_client struct and i2c_get_clientdata - mfd: fix typos - mfd: add MFD cells for IDD and TS features - pinctrl: rework registers #define - dts: add STMFX support on stm32mp157c-ev1 Changes in v3: - fix MFD interrupt bindings - fix drivers/mfd/stmfx.c:103:8: warning: 'mask' may be used uninitialized in this function Changes in v2: - move to MFD parent driver for i2c stuff and chip initialization - improve regmap configuration - take advantage of the use of gpio-ranges Amelie Delaunay (9): dt-bindings: mfd: Add ST Multi-Function eXpander (STMFX) core bindings mfd: Add ST Multi-Function eXpander (STMFX) core driver dt-bindings: pinctrl: document the STMFX pinctrl bindings pinctrl: Add STMFX GPIO expander Pinctrl/GPIO driver ARM: dts: stm32: add STMFX support on stm32746g-eval ARM: dts: stm32: add joystick support on stm32746g-eval ARM: dts: stm32: add orange and blue leds on stm32746g-eval ARM: dts: stm32: add STMFX support on stm32mp157c-ev1 ARM: dts: stm32: add joystick support on stm32mp157c-ev1 Documentation/devicetree/bindings/mfd/stmfx.txt | 28 + .../devicetree/bindings/pinctrl/pinctrl-stmfx.txt | 116 +++ arch/arm/boot/dts/stm32746g-eval.dts | 66 ++ arch/arm/boot/dts/stm32mp157c-ev1.dts | 60 ++ drivers/mfd/Kconfig | 13 + drivers/mfd/Makefile | 2 +- drivers/mfd/stmfx.c | 545 ++++++++++++++ drivers/pinctrl/Kconfig | 12 + drivers/pinctrl/Makefile | 1 + drivers/pinctrl/pinctrl-stmfx.c | 820 +++++++++++++++++++++ include/linux/mfd/stmfx.h | 123 ++++ 11 files changed, 1785 insertions(+), 1 deletion(-) create mode 100644 Documentation/devicetree/bindings/mfd/stmfx.txt create mode 100644 Documentation/devicetree/bindings/pinctrl/pinctrl-stmfx.txt create mode 100644 drivers/mfd/stmfx.c create mode 100644 drivers/pinctrl/pinctrl-stmfx.c create mode 100644 include/linux/mfd/stmfx.h