From patchwork Thu Jun 15 20:55:20 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Maksim Kiselev X-Patchwork-Id: 13281733 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id E925BEB64D9 for ; Thu, 15 Jun 2023 20:57:30 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=LMNS4qsRhMV+I6ygE4t2dvFY1DQX5lZeCiSvPSK6bno=; b=rQPh7U/bmD5gb9 m8+RuUIAPCC9/YSnk6WcuP+CHV2EIoLQFsR3205xjfrDjmHis/nlgLR/2CePT3mANjNk4ErCD55b6 8i7uEnC/VBHfu+C5ZvwqtmaxZeKzSx7+qMzw8sR+Mj+GOMohSRnXAT7ajs0xqAIQgvsX1zvjvZ/d6 3yGxOcZvJ8xzkmkgbZzJ7H13ANojunI7zVXiX3k6C97qK5rKCpxzbwriCIBSYJV8/ul8UDfWJS1pK 2lfTPcGja+vZRDxKnSeaQxhItPKQKwXQzZjK59ONuOOnvrVY4Z5kZd2JJ/ASja7/SI4aPQEJR0lEe migTCD/YQKU9RXQIcFgA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1q9u1a-00G4mK-1J; Thu, 15 Jun 2023 20:56:58 +0000 Received: from mail-wm1-x336.google.com ([2a00:1450:4864:20::336]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1q9u1X-00G4l0-22; Thu, 15 Jun 2023 20:56:57 +0000 Received: by mail-wm1-x336.google.com with SMTP id 5b1f17b1804b1-3f8d5262dc8so857215e9.0; Thu, 15 Jun 2023 13:56:54 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20221208; t=1686862613; x=1689454613; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=ts7gDe7gravmJggnFCoLYjTVBJjvPvcISMM3enedaR4=; b=M2PxwDA0P9WW4osM7hrnAIqVvH7RBJHlw8HeRAtBKJ5O8cobDfo5CjznvJbtIRiHFL nztaqc8WtYPCdZNfe3Cm5J9AKs8FHi5ZHg/uyZ74IvMkqf9a+MdYGU1LPWtu7wRQSQWV zAdTOtgHwCRGMb3/k17mCa4jtfztb8PIagw15I7JVHNA07k3Zn4aFDCUsP3pKXM9uyBl a/p9dGZy5VMe2+YscL+BSGgUcBmZ9AWLT+dliiTByhM1SsLlyryNvNdlNyPshPJJ5Pow EgFW0rE74TQocnh7t1AKGwshNogWHDhHXWtCiQxtdG15Z5jDHy3YxZ/QZTxhbMXybOxE ap9g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1686862613; x=1689454613; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=ts7gDe7gravmJggnFCoLYjTVBJjvPvcISMM3enedaR4=; b=QYLKZBz1P+DHwgK5Dn/evY3/oXwMWNst//GMpTCPYICEg1BlH8Ferl/9gJBP7SnX/3 LnDzqLpIv8MKwHDhkk344ynWk8xLsq2Y/kKj0DqmL5WeLNOQc2yrfGpdHwKPiDFXKls0 uhqyo+g6gvJRL5kbf3lDDfRpTBO0vNeAMnYlTTqqonZ5ZGfZtMN1pDCBYhEKPRoGfHkr wPHZhsY7dxjk2u47G/U4eFuABAxFM8XCZYfPC8Hwg+OYaqkp2V4gsaxvNZOOdWdFKuQd JBA+AVJmZUEL1QiMAp0pGShcV1qwfWLwSy5m9Ho6bylN4TSEiD817JCJQKvuiXYoXLQN 2oSA== X-Gm-Message-State: AC+VfDw6bE4Mpr+kLDOqEAf37HOwNZ1JwcmiIEj7V8vFL6uQhUNlNOM9 5iHo8/nSGslFTIN4b/zCUAE= X-Google-Smtp-Source: ACHHUZ6kIyqRy3rH63vp+f08fVqpBoTuVC/fqdFp1q9q3QaIXjwvnFOhC+WQAPLcMIfpC7WUn2NVPw== X-Received: by 2002:a05:600c:19cb:b0:3f7:e559:ddf5 with SMTP id u11-20020a05600c19cb00b003f7e559ddf5mr4839921wmq.17.1686862612986; Thu, 15 Jun 2023 13:56:52 -0700 (PDT) Received: from user-PC.. ([92.51.95.194]) by smtp.gmail.com with ESMTPSA id k24-20020a7bc318000000b003f733c1129fsm176372wmj.33.2023.06.15.13.56.49 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 15 Jun 2023 13:56:52 -0700 (PDT) From: Maksim Kiselev To: linux-iio@vger.kernel.org Cc: Maksim Kiselev , Andy Shevchenko , 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 , Heiko Stuebner , Cosmin Tanislav , Haibo Chen , =?utf-8?q?Leonard_G=C3=B6hrs?= , Caleb Connolly , Hugo Villeneuve , Mike Looijmans , ChiYuan Huang , Ramona Bolboaca , Ibrahim Tilki , William Breathitt Gray , Arnd Bergmann , ChiaEn Wu , 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 v7 1/3] iio: adc: Add Allwinner D1/T113s/R329/T507 SoCs GPADC Date: Thu, 15 Jun 2023 23:55:20 +0300 Message-Id: <20230615205540.1803975-2-bigunclemax@gmail.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230615205540.1803975-1-bigunclemax@gmail.com> References: <20230615205540.1803975-1-bigunclemax@gmail.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230615_135655_675375_708812EC X-CRM114-Status: GOOD ( 30.47 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org The General Purpose ADC (GPADC) can convert the external signal into a certain proportion of digital value, to realize the measurement of analog signal, which can be applied to power detection and key detection. Theoretically, this ADC can support up to 16 channels. All SoCs below contain this GPADC IP. The only difference between them is the number of available channels: T113 - 1 channel D1 - 2 channels R329 - 4 channels T507 - 4 channels Reviewed-by: Andy Shevchenko Signed-off-by: Maksim Kiselev --- drivers/iio/adc/Kconfig | 10 ++ drivers/iio/adc/Makefile | 1 + drivers/iio/adc/sun20i-gpadc-iio.c | 276 +++++++++++++++++++++++++++++ 3 files changed, 287 insertions(+) create mode 100644 drivers/iio/adc/sun20i-gpadc-iio.c diff --git a/drivers/iio/adc/Kconfig b/drivers/iio/adc/Kconfig index eb2b09ef5d5b..deff7ae704ce 100644 --- a/drivers/iio/adc/Kconfig +++ b/drivers/iio/adc/Kconfig @@ -1123,6 +1123,16 @@ config SUN4I_GPADC To compile this driver as a module, choose M here: the module will be called sun4i-gpadc-iio. +config SUN20I_GPADC + tristate "Support for the Allwinner SoCs GPADC" + depends on ARCH_SUNXI || COMPILE_TEST + help + Say yes here to build support for Allwinner (D1, T113, T507 and R329) + SoCs GPADC. This ADC provides up to 16 channels. + + To compile this driver as a module, choose M here: the module will be + called sun20i-gpadc-iio. + config TI_ADC081C tristate "Texas Instruments ADC081C/ADC101C/ADC121C family" depends on I2C diff --git a/drivers/iio/adc/Makefile b/drivers/iio/adc/Makefile index e07e4a3e6237..fc4ef71d5f8f 100644 --- a/drivers/iio/adc/Makefile +++ b/drivers/iio/adc/Makefile @@ -95,6 +95,7 @@ obj-$(CONFIG_RZG2L_ADC) += rzg2l_adc.o obj-$(CONFIG_SC27XX_ADC) += sc27xx_adc.o obj-$(CONFIG_SPEAR_ADC) += spear_adc.o obj-$(CONFIG_SUN4I_GPADC) += sun4i-gpadc-iio.o +obj-$(CONFIG_SUN20I_GPADC) += sun20i-gpadc-iio.o obj-$(CONFIG_STM32_ADC_CORE) += stm32-adc-core.o obj-$(CONFIG_STM32_ADC) += stm32-adc.o obj-$(CONFIG_STM32_DFSDM_CORE) += stm32-dfsdm-core.o diff --git a/drivers/iio/adc/sun20i-gpadc-iio.c b/drivers/iio/adc/sun20i-gpadc-iio.c new file mode 100644 index 000000000000..6a893d484cf7 --- /dev/null +++ b/drivers/iio/adc/sun20i-gpadc-iio.c @@ -0,0 +1,276 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * GPADC driver for sunxi platforms (D1, T113-S3 and R329) + * Copyright (c) 2023 Maksim Kiselev + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include + +#define SUN20I_GPADC_DRIVER_NAME "sun20i-gpadc" + +/* Register map definition */ +#define SUN20I_GPADC_SR 0x00 +#define SUN20I_GPADC_CTRL 0x04 +#define SUN20I_GPADC_CS_EN 0x08 +#define SUN20I_GPADC_FIFO_INTC 0x0c +#define SUN20I_GPADC_FIFO_INTS 0x10 +#define SUN20I_GPADC_FIFO_DATA 0X14 +#define SUN20I_GPADC_CB_DATA 0X18 +#define SUN20I_GPADC_DATAL_INTC 0x20 +#define SUN20I_GPADC_DATAH_INTC 0x24 +#define SUN20I_GPADC_DATA_INTC 0x28 +#define SUN20I_GPADC_DATAL_INTS 0x30 +#define SUN20I_GPADC_DATAH_INTS 0x34 +#define SUN20I_GPADC_DATA_INTS 0x38 +#define SUN20I_GPADC_CH_CMP_DATA(x) (0x40 + (x) * 4) +#define SUN20I_GPADC_CH_DATA(x) (0x80 + (x) * 4) + +#define SUN20I_GPADC_CTRL_ADC_AUTOCALI_EN_MASK BIT(23) +#define SUN20I_GPADC_CTRL_WORK_MODE_MASK GENMASK(19, 18) +#define SUN20I_GPADC_CTRL_ADC_EN_MASK BIT(16) +#define SUN20I_GPADC_CS_EN_ADC_CH(x) BIT(x) +#define SUN20I_GPADC_DATA_INTC_CH_DATA_IRQ_EN(x) BIT(x) + +#define SUN20I_GPADC_WORK_MODE_SINGLE 0 + +struct sun20i_gpadc_iio { + void __iomem *regs; + struct completion completion; + int last_channel; + /* + * Lock to protect the device state during a potential concurrent + * read access from userspace. Reading a raw value requires a sequence + * of register writes, then a wait for a completion callback, + * and finally a register read, during which userspace could issue + * another read request. This lock protects a read access from + * ocurring before another one has finished. + */ + struct mutex lock; +}; + +static int sun20i_gpadc_adc_read(struct sun20i_gpadc_iio *info, + struct iio_chan_spec const *chan, int *val) +{ + u32 ctrl; + int ret = IIO_VAL_INT; + + mutex_lock(&info->lock); + + reinit_completion(&info->completion); + + if (info->last_channel != chan->channel) { + info->last_channel = chan->channel; + + /* enable the analog input channel */ + writel(SUN20I_GPADC_CS_EN_ADC_CH(chan->channel), + info->regs + SUN20I_GPADC_CS_EN); + + /* enable the data irq for input channel */ + writel(SUN20I_GPADC_DATA_INTC_CH_DATA_IRQ_EN(chan->channel), + info->regs + SUN20I_GPADC_DATA_INTC); + } + + /* enable the ADC function */ + ctrl = readl(info->regs + SUN20I_GPADC_CTRL); + ctrl |= FIELD_PREP(SUN20I_GPADC_CTRL_ADC_EN_MASK, 1); + writel(ctrl, info->regs + SUN20I_GPADC_CTRL); + + /* + * According to the datasheet maximum acquire time(TACQ) can be + * (65535+1)/24Mhz and conversion time(CONV_TIME) is always constant + * and equal to 14/24Mhz, so (TACQ+CONV_TIME) <= 2.73125ms. + * A 10ms delay should be enough to make sure an interrupt occurs in + * normal conditions. If it doesn't occur, then there is a timeout. + */ + if (!wait_for_completion_timeout(&info->completion, msecs_to_jiffies(10))) { + ret = -ETIMEDOUT; + goto err_unlock; + } + + /* read the ADC data */ + *val = readl(info->regs + SUN20I_GPADC_CH_DATA(chan->channel)); + +err_unlock: + mutex_unlock(&info->lock); + + return ret; +} + +static int sun20i_gpadc_read_raw(struct iio_dev *indio_dev, + struct iio_chan_spec const *chan, int *val, + int *val2, long mask) +{ + struct sun20i_gpadc_iio *info = iio_priv(indio_dev); + + switch (mask) { + case IIO_CHAN_INFO_RAW: + return sun20i_gpadc_adc_read(info, chan, val); + case IIO_CHAN_INFO_SCALE: + /* value in mv = 1800mV / 4096 raw */ + *val = 1800; + *val2 = 12; + return IIO_VAL_FRACTIONAL_LOG2; + default: + return -EINVAL; + } +} + +static irqreturn_t sun20i_gpadc_irq_handler(int irq, void *data) +{ + struct sun20i_gpadc_iio *info = data; + + /* clear data interrupt status register */ + writel(GENMASK(31, 0), info->regs + SUN20I_GPADC_DATA_INTS); + + complete(&info->completion); + + return IRQ_HANDLED; +} + +static const struct iio_info sun20i_gpadc_iio_info = { + .read_raw = sun20i_gpadc_read_raw, +}; + +static void sun20i_gpadc_reset_assert(void *data) +{ + struct reset_control *rst = data; + + reset_control_assert(rst); +} + +static int sun20i_gpadc_alloc_channels(struct iio_dev *indio_dev, + struct device *dev) +{ + unsigned int channel; + int num_channels, i, ret; + struct iio_chan_spec *channels; + struct fwnode_handle *node; + + num_channels = device_get_child_node_count(dev); + if (num_channels == 0) + return dev_err_probe(dev, -ENODEV, "no channel children\n"); + + channels = devm_kcalloc(dev, num_channels, sizeof(*channels), + GFP_KERNEL); + if (!channels) + return -ENOMEM; + + i = 0; + device_for_each_child_node(dev, node) { + ret = fwnode_property_read_u32(node, "reg", &channel); + if (ret) { + fwnode_handle_put(node); + return dev_err_probe(dev, ret, "invalid channel number\n"); + } + + channels[i].type = IIO_VOLTAGE; + channels[i].indexed = 1; + channels[i].channel = channel; + channels[i].info_mask_separate = BIT(IIO_CHAN_INFO_RAW); + channels[i].info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE); + + i++; + } + + indio_dev->channels = channels; + indio_dev->num_channels = num_channels; + + return 0; +} + +static int sun20i_gpadc_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct iio_dev *indio_dev; + struct sun20i_gpadc_iio *info; + struct reset_control *rst; + struct clk *clk; + int irq; + int ret; + + indio_dev = devm_iio_device_alloc(dev, sizeof(*info)); + if (!indio_dev) + return -ENOMEM; + + info = iio_priv(indio_dev); + info->last_channel = -1; + + mutex_init(&info->lock); + init_completion(&info->completion); + + ret = sun20i_gpadc_alloc_channels(indio_dev, dev); + if (ret) + return ret; + + indio_dev->info = &sun20i_gpadc_iio_info; + indio_dev->name = SUN20I_GPADC_DRIVER_NAME; + + info->regs = devm_platform_ioremap_resource(pdev, 0); + if (IS_ERR(info->regs)) + return PTR_ERR(info->regs); + + clk = devm_clk_get_enabled(dev, NULL); + if (IS_ERR(clk)) + return dev_err_probe(dev, PTR_ERR(clk), "failed to enable bus clock\n"); + + rst = devm_reset_control_get_exclusive(dev, NULL); + if (IS_ERR(rst)) + return dev_err_probe(dev, PTR_ERR(rst), "failed to get reset control\n"); + + ret = reset_control_deassert(rst); + if (ret) + return dev_err_probe(dev, ret, "failed to deassert reset\n"); + + ret = devm_add_action_or_reset(dev, sun20i_gpadc_reset_assert, rst); + if (ret) + return ret; + + irq = platform_get_irq(pdev, 0); + if (irq < 0) + return irq; + + ret = devm_request_irq(dev, irq, sun20i_gpadc_irq_handler, 0, + dev_name(dev), info); + if (ret) + return dev_err_probe(dev, ret, "failed requesting irq %d\n", irq); + + writel(FIELD_PREP(SUN20I_GPADC_CTRL_ADC_AUTOCALI_EN_MASK, 1) | + FIELD_PREP(SUN20I_GPADC_CTRL_WORK_MODE_MASK, SUN20I_GPADC_WORK_MODE_SINGLE), + info->regs + SUN20I_GPADC_CTRL); + + ret = devm_iio_device_register(dev, indio_dev); + if (ret) + return dev_err_probe(dev, ret, "could not register the device\n"); + + return 0; +} + +static const struct of_device_id sun20i_gpadc_of_id[] = { + { .compatible = "allwinner,sun20i-d1-gpadc" }, + { /* sentinel */ } +}; +MODULE_DEVICE_TABLE(of, sun20i_gpadc_of_id); + +static struct platform_driver sun20i_gpadc_driver = { + .driver = { + .name = SUN20I_GPADC_DRIVER_NAME, + .of_match_table = sun20i_gpadc_of_id, + }, + .probe = sun20i_gpadc_probe, +}; +module_platform_driver(sun20i_gpadc_driver); + +MODULE_DESCRIPTION("ADC driver for sunxi platforms"); +MODULE_AUTHOR("Maksim Kiselev "); +MODULE_LICENSE("GPL"); From patchwork Thu Jun 15 20:55:21 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Maksim Kiselev X-Patchwork-Id: 13281734 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 6D255EB64DC for ; Thu, 15 Jun 2023 20:57:47 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=cjl9OJavFcnTE5+t8nKZSOouf5WDPfK8nXXTmCqRFuA=; b=bHntxYEBcmLROg LWITL/KhHigDTSd692r/ViTL+dOAmfdT5tw1fPYLJajeWMZsLsADL8NCV7vSt6Lrz5hd/mGAo7XwQ /hqG8mKVXcfZ8kG8mVmreSDjrn5hKyE5mZwPOkdAbB2Cwf98RHFez2UqiVWjADl+DKSMkculfJ0GP frn0X2js37hQfPEW3CclUzeF7BnhvGrgRoyAV5guppF6B1tJoD/I4mq/OM9jJTjWWak7kqCKs4Y1Q YKYYADjg2HV4L4TzpAmSmNbRhIYsWOFR1c30ohrGpWukB5lN8k5jARrvVaGGFX95Wx2Ol1W9aT0d1 7STpmDGHJINFjiUcsxjg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1q9u1t-00G4rj-3D; Thu, 15 Jun 2023 20:57:18 +0000 Received: from mail-wm1-x32e.google.com ([2a00:1450:4864:20::32e]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1q9u1r-00G4qs-1a; Thu, 15 Jun 2023 20:57:16 +0000 Received: by mail-wm1-x32e.google.com with SMTP id 5b1f17b1804b1-3f8c9cb3144so21265585e9.0; Thu, 15 Jun 2023 13:57:14 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20221208; t=1686862633; x=1689454633; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=z5rIbWUvXPqdJJgOnGLL8m8IBmG8tIePJ5zzh46kuSM=; b=nX/f79n3CU6wg9P7tabFSVT2oNPbzNQCmL2F7glG7yGWlgNzZR1PvS6lOEvcWflUkl Vl16WFUR/ZMny7l8zXcJz4mzUhDH7HlcO5jAhtpN3eIXUa4JPCJnAdLKhz733x+Qx3iV t2KUCdmSl/rJ7Etb/lDFDMkDo+3/+joioZFWGWUpnCGSh+fQSwu+dX5KItGWraPe0elR WqcFuAQPdCi1ejcFAygi3kM1Qos6VeVfXga/Za4jpbMUEe1nSI0Lma1fW/J2jFTYzRes 02KSmpvE4AFQt+79g9D11Z4s6eSo7WLl/bb/4TxAvw3c1Nxtnd3kh7mIPUH/TkesFCI2 sJWw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1686862633; x=1689454633; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=z5rIbWUvXPqdJJgOnGLL8m8IBmG8tIePJ5zzh46kuSM=; b=DvAPigwwPZdnAbwk3BbzVZEvIRe+5k8Al2bnGShJ4R67Y5c/bwd+9bY+WMt8+xNmvo LX8xiJhFkUhc0FzaD59RLwDO1XpZ61vQW5scc8yJljvL3tCBQG4qFlCBNwNk2jjxfZxf kNw5RpY2F64u6XV0+wjhQDWyArrhghlfOwVH6g6j0EHQuAhi6kbjVkfIWtnZ3N5PKHBF HwvZpvUO7lUgVZIQBYXaNbgDkMJ9cDaRhibNH+4ok9UqK19sETfkKYM5rvi1iIltDsDV NX/udNOwni7HCXt21qwV0XbQ+eT1d8Q1rvKYDmJzj3b4yfm0UmqiSV7i/F554gzQdwi8 2sEA== X-Gm-Message-State: AC+VfDwVpfXiWBbcndoozvoGdTRwRePaXQFgwfzjbqIZm7RyLxshP07e ndP7K+CePYVlTiZ09tj+kIM= X-Google-Smtp-Source: ACHHUZ49tinnDakWJhHOxIkwJwpg1xHEAgq8HMLqj8tWi1TJC0EPNTFsPDNHIfYdFtMbxDt56YU1hA== X-Received: by 2002:a7b:ca4a:0:b0:3f8:afe:5c39 with SMTP id m10-20020a7bca4a000000b003f80afe5c39mr298289wml.2.1686862633077; Thu, 15 Jun 2023 13:57:13 -0700 (PDT) Received: from user-PC.. ([92.51.95.194]) by smtp.gmail.com with ESMTPSA id k24-20020a7bc318000000b003f733c1129fsm176372wmj.33.2023.06.15.13.57.09 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 15 Jun 2023 13:57:12 -0700 (PDT) From: Maksim Kiselev To: linux-iio@vger.kernel.org Cc: Maksim Kiselev , Conor Dooley , 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 , Andy Shevchenko , Cosmin Tanislav , Marcus Folkesson , =?utf-8?q?Leonard_G=C3=B6hrs?= , William Breathitt Gray , Haibo Chen , ChiYuan Huang , Ramona Bolboaca , Ibrahim Tilki , Caleb Connolly , Arnd Bergmann , ChiaEn Wu , 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 v7 2/3] dt-bindings: iio: adc: Add Allwinner D1/T113s/R329/T507 SoCs GPADC Date: Thu, 15 Jun 2023 23:55:21 +0300 Message-Id: <20230615205540.1803975-3-bigunclemax@gmail.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230615205540.1803975-1-bigunclemax@gmail.com> References: <20230615205540.1803975-1-bigunclemax@gmail.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230615_135715_528889_322E3231 X-CRM114-Status: GOOD ( 13.09 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Allwinner's D1/T113s/R329/T507 SoCs have a new general purpose ADC. This ADC is the same for all of this SoCs. The only difference is the number of available channels. Reviewed-by: Conor Dooley Signed-off-by: Maksim Kiselev --- .../iio/adc/allwinner,sun20i-d1-gpadc.yaml | 91 +++++++++++++++++++ 1 file changed, 91 insertions(+) create mode 100644 Documentation/devicetree/bindings/iio/adc/allwinner,sun20i-d1-gpadc.yaml diff --git a/Documentation/devicetree/bindings/iio/adc/allwinner,sun20i-d1-gpadc.yaml b/Documentation/devicetree/bindings/iio/adc/allwinner,sun20i-d1-gpadc.yaml new file mode 100644 index 000000000000..23c584f5a6e6 --- /dev/null +++ b/Documentation/devicetree/bindings/iio/adc/allwinner,sun20i-d1-gpadc.yaml @@ -0,0 +1,91 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/iio/adc/allwinner,sun20i-d1-gpadc.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Allwinner D1 General Purpose ADC + +maintainers: + - Maksim Kiselev + +properties: + compatible: + enum: + - allwinner,sun20i-d1-gpadc + + "#io-channel-cells": + const: 1 + + "#address-cells": + const: 1 + + "#size-cells": + const: 0 + + clocks: + maxItems: 1 + + interrupts: + maxItems: 1 + + reg: + maxItems: 1 + + resets: + maxItems: 1 + +patternProperties: + "^channel@[0-9a-f]+$": + $ref: adc.yaml + type: object + description: + Represents the internal channels of the ADC. + + properties: + reg: + items: + minimum: 0 + maximum: 15 + + required: + - reg + + unevaluatedProperties: false + +required: + - "#io-channel-cells" + - clocks + - compatible + - interrupts + - reg + - resets + +additionalProperties: false + +examples: + - | + #include + #include + #include + + gpadc: adc@2009000 { + compatible = "allwinner,sun20i-d1-gpadc"; + reg = <0x2009000 0x1000>; + clocks = <&ccu CLK_BUS_GPADC>; + resets = <&ccu RST_BUS_GPADC>; + interrupts = <73 IRQ_TYPE_LEVEL_HIGH>; + #io-channel-cells = <1>; + + #address-cells = <1>; + #size-cells = <0>; + + channel@0 { + reg = <0>; + }; + + channel@1 { + reg = <1>; + }; + }; +... From patchwork Thu Jun 15 20:55:22 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Maksim Kiselev X-Patchwork-Id: 13281735 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 13601EB64D9 for ; Thu, 15 Jun 2023 20:58:08 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=DdReMgvPFdE/vDgai32Ln3UoTdrA7/7X8bIP+E5pi/4=; b=Pn4s87u2Yv4y9G PDF87VF58VBI9vxO809GRylfDMT0SWCIF79s/1JlQlUI4p0ZfQAcUlCMzItJWRXv/fx4Yo4HFwlrT uN9GApa4GMw5kUy3Agv0x9JINpmcUuC0dN/2W1WLJg8OStYT0ESiEEWmrEXtdRqpqrYjnBn6Y5Vp6 rPtZGbIF3JWAI7FRyz0/zkU4mx/Z44MYSoCiiIpakWZe0SsD/3pscvfAm/l0ViJk2Sx6dqKPavNwi xqILcRXuoojLoO3obZabKULAq99fA88k1RpRLbIspqNsEt6RyqduDtIiQPA+NmmgOBRRibzqvpb4F 1gl8yi4iN+64RE4K/0Cw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1q9u2E-00G4xd-0o; Thu, 15 Jun 2023 20:57:38 +0000 Received: from mail-wm1-x32f.google.com ([2a00:1450:4864:20::32f]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1q9u2B-00G4wi-2j; Thu, 15 Jun 2023 20:57:37 +0000 Received: by mail-wm1-x32f.google.com with SMTP id 5b1f17b1804b1-3f8cc04c278so22726185e9.0; Thu, 15 Jun 2023 13:57:34 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20221208; t=1686862653; x=1689454653; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=dPsNG/FZ1k4UaDSBhJRqncRzudNFaZG2hOicOFjuDg0=; b=Lq6c3nOqJ/m4ocMF35gRFAvHKZHsdT0ZTfnmTKDlRj81mkl4S2DzbrY01Dd3MHb2vD LKJ97u3S6t32HPcaIzJTkSnBRFtCIckL8AlSf8FvbbsFpSZmJsjxR8HjSQ5Ne87RfOeg ZPKNUTpsUwA4zB0uxL2nCVlzZNtepLrIrCT8WU/S/4fcFEKFsG9CGji4LGTeLM8aiv6A r65sVgWOecbSgMOoDwgg4nJgtOopirkHV9raIkZOrpcLVGCHAHskpEkwBp0oChLBhBCI ubn5vE6xVLuNZqiEBJBRzmyDsGs5llJ/gj52BduyjC6lr5TwlGH/x/NSYa6gR3IJSosG PbRA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1686862653; x=1689454653; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=dPsNG/FZ1k4UaDSBhJRqncRzudNFaZG2hOicOFjuDg0=; b=bFzqn9aRbTFTJJw4JqYBhrU8oactjWS4z0HaU+Buf1v0czQIO21Sb0KvLq4OiDYceM zQtkinpZg3N0soOqxROvcSb8BRDD5vFtL+xv4fSAXfOk/4glcH2+S1KwrLCeTsCxB4yL enXCHxBi6TWCGSykxU/O1vAru1K4eck7pfohmyYUHtu2Tu9M7Bylitvs4DADO0Yz1dY4 6SBts5aIdeoJIS4C/zPpzqImmaJxD6AtC25dQRPEFN5W0wjsXPZsHEsFlv59JZHEZkAs URXg6KbSJjLMx16Nh7cTcI6B9L863LZsxaTkF3N/pWNFJtWOoFXbBSBoDJS/li6Pw111 h1IA== X-Gm-Message-State: AC+VfDxJp0uNL0fmlzWEyGjZ7bnPu/3At7+Zg+CnY1KTvkB50XR6WWvQ Bn98W6Eup96JU4ZMAUBuw9U= X-Google-Smtp-Source: ACHHUZ6G6BjLZPo9OOrHMIFog94EWcKf0LkdquMRmMdpIg/KVI+L1MZrvO92xcPAZ8zBJyiX2LWPlQ== X-Received: by 2002:a1c:7907:0:b0:3f6:2a6:e2c with SMTP id l7-20020a1c7907000000b003f602a60e2cmr288223wme.9.1686862653373; Thu, 15 Jun 2023 13:57:33 -0700 (PDT) Received: from user-PC.. ([92.51.95.194]) by smtp.gmail.com with ESMTPSA id k24-20020a7bc318000000b003f733c1129fsm176372wmj.33.2023.06.15.13.57.29 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 15 Jun 2023 13:57:33 -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 , Andy Shevchenko , Cosmin Tanislav , AngeloGioacchino Del Regno , Haibo Chen , ChiaEn Wu , =?utf-8?q?Leonard_G=C3=B6hrs?= , Caleb Connolly , ChiYuan Huang , Ramona Bolboaca , Ibrahim Tilki , William Breathitt Gray , Arnd Bergmann , Mike Looijmans , 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 v7 3/3] riscv: dts: allwinner: d1: Add GPADC node Date: Thu, 15 Jun 2023 23:55:22 +0300 Message-Id: <20230615205540.1803975-4-bigunclemax@gmail.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230615205540.1803975-1-bigunclemax@gmail.com> References: <20230615205540.1803975-1-bigunclemax@gmail.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230615_135735_883356_1CC76E11 X-CRM114-Status: UNSURE ( 9.70 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org This patch adds declaration of the general purpose ADC for D1 and T113s SoCs. Signed-off-by: Maksim Kiselev Reviewed-by: Conor Dooley --- arch/riscv/boot/dts/allwinner/sunxi-d1s-t113.dtsi | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/arch/riscv/boot/dts/allwinner/sunxi-d1s-t113.dtsi b/arch/riscv/boot/dts/allwinner/sunxi-d1s-t113.dtsi index 922e8e0e2c09..90c79041cfba 100644 --- a/arch/riscv/boot/dts/allwinner/sunxi-d1s-t113.dtsi +++ b/arch/riscv/boot/dts/allwinner/sunxi-d1s-t113.dtsi @@ -138,6 +138,16 @@ ccu: clock-controller@2001000 { #reset-cells = <1>; }; + gpadc: adc@2009000 { + compatible = "allwinner,sun20i-d1-gpadc"; + reg = <0x2009000 0x1000>; + clocks = <&ccu CLK_BUS_GPADC>; + resets = <&ccu RST_BUS_GPADC>; + interrupts = ; + status = "disabled"; + #io-channel-cells = <1>; + }; + dmic: dmic@2031000 { compatible = "allwinner,sun20i-d1-dmic", "allwinner,sun50i-h6-dmic";