From patchwork Mon Jun 19 15:42:23 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Maksim Kiselev X-Patchwork-Id: 13284717 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id CDBEEEB64DB for ; Mon, 19 Jun 2023 15:43:07 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231330AbjFSPnH (ORCPT ); Mon, 19 Jun 2023 11:43:07 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45738 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231130AbjFSPnG (ORCPT ); Mon, 19 Jun 2023 11:43:06 -0400 Received: from mail-lf1-x130.google.com (mail-lf1-x130.google.com [IPv6:2a00:1450:4864:20::130]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0F21A83; Mon, 19 Jun 2023 08:43:05 -0700 (PDT) Received: by mail-lf1-x130.google.com with SMTP id 2adb3069b0e04-4f004cc54f4so4781381e87.3; Mon, 19 Jun 2023 08:43:04 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20221208; t=1687189383; x=1689781383; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=ONxNNZw/qmdwlne5gEPTK3bLBdHTya93hQkUoKWnPqE=; b=QzFQD0kW5M7hiQP0BvScCgizwq82HavcztJnTml/MMDEMrA9ytHqYflCzsjgHLoBA7 ro+hTf+n4XIV7mQz9+v8jVS3NAzHV+/pkvfpG+AuiWc39fiOwvxSVd1dJwVVqE83OggC sBlYxFgc2S0pgTfFhe01MLcf9FkfMdcKpCXxtf03TkWsiS3v6IR1ERBMjXJjd+zb0j/7 0otLD1Eyh6wu90VrPmoGsAVCZ2P+7LCFexg3EYF6RqqoX4qWcE5sPv35JoxYmy47rvdk /6MsgPCeVmKMt2KI3Beju3sisLU9oEwamwt6pp1WoUQHb0w9mDEFhBlxaSogONGIJRWt YEiw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1687189383; x=1689781383; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=ONxNNZw/qmdwlne5gEPTK3bLBdHTya93hQkUoKWnPqE=; b=ELNlZMIC1mPP2bpJ57elj+J0zbNgqAz1cN0+YUnPXrrlk4mU4gMW3odgS5NeEDFo0+ QJ0PDB3sn+Rvf93BFeuygkhJ3WWj8T0V+S2Ad5T7tNp/pKuwaD4LaBOyAnaBoi6Xwj3c Z0j+0U1K5Epxb93rwJV7sb7xkYsJubIQwKX51y2x/NIpTR+ooGXCixULu9E1ZcDsVePY yJ8gDA3LPnceKWNGsKWnPn1gv8woirXFlszsOIX5zkkGGAgx2GwRCWSeixYwxPr8UhjB apEViEbmFQqtYVgObnKT+sKKWFF7E+i8OD6fsOv7BG5ZxOK1nacqvhBylIMtKAOaMNGV UVyA== X-Gm-Message-State: AC+VfDzXv1A2q1HDbh+DDWsDnDajBmiC5hlc8R8UoL7Bx0TIPyEKjLCP i76EZIGa+rhC1j2LewNByDg7DD+2u7coaXjJ X-Google-Smtp-Source: ACHHUZ4yL4aD+qEJZ0h0+bGI3YNOliImTCvoONhBTFNNWCuE57QQWU4tZRBQX1lukt9ksOQnP13AQg== X-Received: by 2002:a19:e04d:0:b0:4e8:4abf:f19d with SMTP id g13-20020a19e04d000000b004e84abff19dmr5744863lfj.15.1687189382656; Mon, 19 Jun 2023 08:43:02 -0700 (PDT) Received: from user-PC.. ([178.134.198.138]) by smtp.gmail.com with ESMTPSA id f11-20020a19ae0b000000b004f85e53250bsm1207144lfc.191.2023.06.19.08.42.58 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 19 Jun 2023 08:43:02 -0700 (PDT) From: Maksim Kiselev To: linux-iio@vger.kernel.org Cc: Maksim Kiselev , Jonathan Cameron , Lars-Peter Clausen , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Chen-Yu Tsai , Jernej Skrabec , Samuel Holland , Paul Walmsley , Palmer Dabbelt , Albert Ou , Philipp Zabel , Cristian Ciocaltea , Andre Przywara , Andy Shevchenko , Cosmin Tanislav , Alexander Sverdlin , ChiYuan Huang , =?utf-8?q?Leonard_G=C3=B6hrs?= , Haibo Chen , Ramona Bolboaca , Ibrahim Tilki , ChiaEn Wu , William Breathitt Gray , Arnd Bergmann , Hugo Villeneuve , Mike Looijmans , Quentin Schulz , Maxime Ripard , devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-sunxi@lists.linux.dev, linux-kernel@vger.kernel.org, linux-riscv@lists.infradead.org Subject: [PATCH v8 0/4] Add support for Allwinner GPADC on D1/T113s/R329/T507 SoCs Date: Mon, 19 Jun 2023 18:42:23 +0300 Message-Id: <20230619154252.3951913-1-bigunclemax@gmail.com> X-Mailer: git-send-email 2.39.2 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-iio@vger.kernel.org This series adds support for general purpose ADC (GPADC) on new Allwinner's SoCs, such as D1, T113s, T507 and R329. The implemented driver provides basic functionality for getting ADC channels data. Change History: v8: - Added patch that changes Kconfig description for previous Allwinner GPADC - Changed Kconfig description for this GPADC driver - Fixed 'reg' range for gpadc node in 'sunxi-d1s-t113.dtsi' v7: - Fixed typo in DT bindings property v6: - Fixed DT bindings regexp for channel properties - Dropped checking the max number of channels from the drivers code (This is redundant as we raly on DT bindings check) v5: - Fixed DT bindings properties for child nodes v4: - Fixed DT bindings warnings - Used GENMASK to clear the irq register - Minor formatting fixes v3: - Added DT bindings dual license, fixed property order and example formatting - Added explanations comments for timeout and mutex - Dropped unnecessary regmap and used readl/writel instead - Added error message about getting channel number - Renamed labels and variables to make them self-explanatory v2: - Added lastch flag to avoid addition work for already selected channel - Added reset assertion on module remove - Added dynamic channel allocation and dropped iio_chan_spec arrays - Changed IIO_CHAN_INFO_SCALE type to FRACTIONAL_LOG2 - Dropped separate compatible strings and configs for T113s and R329 - Fixed includes - Fixed Kconfig description - Removed duplicate probe error messages - Used FIELD_PREP for bit setup v1: - Initial version Maksim Kiselev (4): iio: adc: Kconfig change description for Allwinner GPADC iio: adc: Add Allwinner D1/T113s/R329/T507 SoCs GPADC dt-bindings: iio: adc: Add Allwinner D1/T113s/R329/T507 SoCs GPADC riscv: dts: allwinner: d1: Add GPADC node .../iio/adc/allwinner,sun20i-d1-gpadc.yaml | 91 ++++++ .../boot/dts/allwinner/sunxi-d1s-t113.dtsi | 10 + drivers/iio/adc/Kconfig | 12 +- drivers/iio/adc/Makefile | 1 + drivers/iio/adc/sun20i-gpadc-iio.c | 276 ++++++++++++++++++ 5 files changed, 389 insertions(+), 1 deletion(-) create mode 100644 Documentation/devicetree/bindings/iio/adc/allwinner,sun20i-d1-gpadc.yaml create mode 100644 drivers/iio/adc/sun20i-gpadc-iio.c