From patchwork Sun Jun 4 18:53:14 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Maksim Kiselev X-Patchwork-Id: 689085 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 61505C7EE23 for ; Sun, 4 Jun 2023 18:54:46 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232377AbjFDSyn (ORCPT ); Sun, 4 Jun 2023 14:54:43 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41870 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232250AbjFDSyk (ORCPT ); Sun, 4 Jun 2023 14:54:40 -0400 Received: from mail-lj1-x232.google.com (mail-lj1-x232.google.com [IPv6:2a00:1450:4864:20::232]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 38C8CD2; Sun, 4 Jun 2023 11:54:38 -0700 (PDT) Received: by mail-lj1-x232.google.com with SMTP id 38308e7fff4ca-2b1b72dc2feso21857861fa.3; Sun, 04 Jun 2023 11:54:38 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20221208; t=1685904876; x=1688496876; 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=EOsbGLwPhi1rdbY0AeNUZxXnxRsioir9fINUrjCxSmY=; b=NpMSK/8CnfB4k5XkNEE97AyPnImToJU7zAbMvxdMf9VFOIlIq8zeGYrJ6dQpa5z3GV JIelwJX/SVKbijD11x2ANgB/bqt+KF+IRN/nFAoOSVvWvGGjAibvRS2i9bcHbiwjm/0P Be10IIVYU0LIxsN7aMUYPukyu81uWWQNrwEuDAZCrvPEwu9mbnxhgneSdsenLS+2EH3U JQojGgeHDQnpYemA0DzO5HThil06LRh4m3y0NGpG/gTjTN6LPf4S9YgJECgahImNKjat 8QBC6n9GQRATbkQiX+mQkjoOa9CzkG1oqp5zWwLqyb7XN06fz6jdmyM/drY50RuyksTZ N5Ew== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1685904876; x=1688496876; 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=EOsbGLwPhi1rdbY0AeNUZxXnxRsioir9fINUrjCxSmY=; b=VEQzWOyd5i+HYL7MH6O62oFHw2QsFXvtnwm8xhOKWk9qAmG4pa5+clHMkJDTlW2wpH tjddTZEqcVwEiUyGvYJ/eu5PPbL9Id+JeyoLrFIbskhurjlaDtSghhIs698I2lCZ7UOz JAK9M/h0leF0KUqxrRcI6YGoYa/UD3rlYDP2pP1hbc6bAOUb64RyU/iokAZGVRJ6zlth R3WI+0exaIye85hUMKCln2wLYGm1AxINBDmGlfTk7cgs5yoWl5Jc0UZ5voLJG5zki0Wi uHSORIydYzXRJbMYmD2susKmAFSP8GNqB930hWAH9pS4Yxw3kAy1XH3zEwI7zp/plNCq FDYQ== X-Gm-Message-State: AC+VfDyz03nR4bD4oe/ZhdOmE1g2lQksr68qgVbJh7pRZWj0byML42Az 4mmE6LJpk/V8/JXdvvkMK8+0j+AIWNig03nn X-Google-Smtp-Source: ACHHUZ52dO7qJtzITDj+CXitVtB65gYu8NoQVf5eLPKkVY5SFypP/rGqHoHq2vJN/NT7WA3n9obrCA== X-Received: by 2002:a2e:9647:0:b0:2a8:ad36:f8ca with SMTP id z7-20020a2e9647000000b002a8ad36f8camr3217537ljh.14.1685904875610; Sun, 04 Jun 2023 11:54:35 -0700 (PDT) Received: from user-PC.. ([178.134.198.138]) by smtp.gmail.com with ESMTPSA id l8-20020a5d4108000000b00304adbeeabbsm7636433wrp.99.2023.06.04.11.54.31 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 04 Jun 2023 11:54:35 -0700 (PDT) From: Maksim Kiselev To: linux-iio@vger.kernel.org Cc: Maxim 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 , Heiko Stuebner , Andy Shevchenko , Cosmin Tanislav , ChiaEn Wu , Miquel Raynal , Mike Looijmans , Marcus Folkesson , ChiYuan Huang , Ramona Bolboaca , Ibrahim Tilki , Caleb Connolly , William Breathitt Gray , Arnd Bergmann , AngeloGioacchino Del Regno , =?utf-8?q?Leonard_G=C3=B6hrs?= , Hugo Villeneuve , 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 v3 1/3] iio: adc: Add Allwinner D1/T113s/R329/T507 SoCs GPADC Date: Sun, 4 Jun 2023 21:53:14 +0300 Message-Id: <20230604185336.1943889-2-bigunclemax@gmail.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230604185336.1943889-1-bigunclemax@gmail.com> References: <20230604185336.1943889-1-bigunclemax@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org From: Maxim Kiselev 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 Signed-off-by: Maxim Kiselev --- drivers/iio/adc/Kconfig | 10 + drivers/iio/adc/Makefile | 1 + drivers/iio/adc/sun20i-gpadc-iio.c | 296 +++++++++++++++++++++++++++++ 3 files changed, 307 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..7b03e8cf02df --- /dev/null +++ b/drivers/iio/adc/sun20i-gpadc-iio.c @@ -0,0 +1,296 @@ +// 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 + +#define SUN20I_GPADC_MAX_CHANNELS 16 + +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(~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) { + dev_err(dev, "no channel children"); + return -ENODEV; + } + + if (num_channels > SUN20I_GPADC_MAX_CHANNELS) { + dev_err(dev, "num of channel children out of range"); + return -EINVAL; + } + + 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) { + dev_err(dev, "invalid channel number"); + goto err_put_child; + } + + 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; + +err_put_child: + fwnode_handle_put(node); + + return ret; +} + +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 Sun Jun 4 18:53:15 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Maksim Kiselev X-Patchwork-Id: 689557 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 7D51EC7EE23 for ; Sun, 4 Jun 2023 18:55:07 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232316AbjFDSzE (ORCPT ); Sun, 4 Jun 2023 14:55:04 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42352 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232349AbjFDSzC (ORCPT ); Sun, 4 Jun 2023 14:55:02 -0400 Received: from mail-wr1-x42e.google.com (mail-wr1-x42e.google.com [IPv6:2a00:1450:4864:20::42e]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B10F8F2; Sun, 4 Jun 2023 11:54:57 -0700 (PDT) Received: by mail-wr1-x42e.google.com with SMTP id ffacd0b85a97d-30ad99fa586so4062722f8f.2; Sun, 04 Jun 2023 11:54:57 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20221208; t=1685904896; x=1688496896; 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=rzwo7MuRNtXcUZRiLMVdnWkiH+vug12Y5tIMzd06xkc=; b=dtN7wjZaTsNocuP8paje8z4jh1t3o0zPEL3lUe7icfmKJdzzwEkLu3ZlOkLep+5h7A nQPAFEOZHswTycVAzk7lBOzxGo3fehL6FpUEajH5Xm2/+1BCoBC/AHPzAu/j4bdz/102 7+Di/Xcd29LGaB5a84q5Lz7TmgDR+53IVZbDDrAUjcH/oxOJVC9daVopBFcRYZj0LTaX 6m9zQ8SAK6EE4mS35EPZBfvvLLc++pnEWeOjG1OBLxZT+boOPJki3dUAFT7LsY3+IFUh gJQKjNfn+E/KUE1SkcLGCqrIVPFP+YSqB1hF/qaRaQVte9rvkejtlieRxSHc2vAg+uDQ DGsw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1685904896; x=1688496896; 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=rzwo7MuRNtXcUZRiLMVdnWkiH+vug12Y5tIMzd06xkc=; b=C8nVLgO3D4JZRm6nGHh5UTyu5/8snZUgJI667+f3xcY3u6urX+sCWV00TGXP8RN09/ fNYpaHWm0GT2BTlNqptGwWqdlY1X7O+riKTtQQNpNgKW4PTOfwOxr4LSkFTjBu6Qy38P APRyp/9ZnsEHMoJbTkKHcnuXqR73MQGt9ZLORix5Z68ahDSDyCkzQR5Xf5B/VHK4grM0 6+w1fB2PFbwn4mnqN8908bQZ/6qip0vwGAg8gpO1XIO0L+kItQgwUK8Al9WsTSBRX9Po GJRLKwLjWWyuTIpqsyGQYXl6cR4+NB+YzeTFZE/VphsRzqdgACllcNp9FBthp8/fuzFv n7/w== X-Gm-Message-State: AC+VfDxEp6RXWeoCMxlrNmHb2PQar2LteqWJskCqaBdxtD2qWpP1MjYK q5FVgyofV0ukhy+9jlN2zC/yO7z9s2OXAmhv X-Google-Smtp-Source: ACHHUZ6WPc41MHqJ5k7vxlqwfogl5pFyEWUQthcw6x2G2C2ELZojXFFKjeH8EGTKwra3U2mEHKzb3Q== X-Received: by 2002:a5d:65c2:0:b0:30a:edc0:c960 with SMTP id e2-20020a5d65c2000000b0030aedc0c960mr4366494wrw.26.1685904895665; Sun, 04 Jun 2023 11:54:55 -0700 (PDT) Received: from user-PC.. ([178.134.198.138]) by smtp.gmail.com with ESMTPSA id l8-20020a5d4108000000b00304adbeeabbsm7636433wrp.99.2023.06.04.11.54.51 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 04 Jun 2023 11:54:55 -0700 (PDT) From: Maksim Kiselev To: linux-iio@vger.kernel.org Cc: Maxim 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 , ChiYuan Huang , Miquel Raynal , Arnd Bergmann , Mike Looijmans , Ramona Bolboaca , Ibrahim Tilki , Caleb Connolly , William Breathitt Gray , AngeloGioacchino Del Regno , ChiaEn Wu , =?utf-8?q?Leonard_G=C3=B6hrs?= , Haibo Chen , 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 v3 2/3] dt-bindings: iio: adc: Add Allwinner D1/T113s/R329/T507 SoCs GPADC Date: Sun, 4 Jun 2023 21:53:15 +0300 Message-Id: <20230604185336.1943889-3-bigunclemax@gmail.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230604185336.1943889-1-bigunclemax@gmail.com> References: <20230604185336.1943889-1-bigunclemax@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org From: Maxim Kiselev 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. Signed-off-by: Maxim Kiselev --- .../iio/adc/allwinner,sun20i-d1-gpadc.yaml | 90 +++++++++++++++++++ 1 file changed, 90 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..8850cd296e6d --- /dev/null +++ b/Documentation/devicetree/bindings/iio/adc/allwinner,sun20i-d1-gpadc.yaml @@ -0,0 +1,90 @@ +# 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 + +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@([0-15])$": + $ref: adc.yaml + type: object + description: + Represents the internal channels of the ADC. + + properties: + reg: + items: + minimum: 0 + maximum: 15 + + required: + - reg + + additionalProperties: false + +required: + - "#io-channel-cells" + - clocks + - compatible + - interrupts + - reg + - resets + +additionalProperties: false + +examples: + - | + #include + #include + #include + #define SOC_PERIPHERAL_IRQ(nr) (nr + 16) + + gpadc: adc@2009000 { + compatible = "allwinner,sun20i-d1-gpadc"; + reg = <0x2009000 0x1000>; + clocks = <&ccu CLK_BUS_GPADC>; + resets = <&ccu RST_BUS_GPADC>; + interrupts = ; + #io-channel-cells = <1>; + + #address-cells = <1>; + #size-cells = <0>; + + channel@0 { + reg = <0>; + }; + + channel@1 { + reg = <1>; + }; + }; + +... From patchwork Sun Jun 4 18:53:16 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Maksim Kiselev X-Patchwork-Id: 689084 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 9595BC7EE23 for ; Sun, 4 Jun 2023 18:55:32 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232349AbjFDSza (ORCPT ); Sun, 4 Jun 2023 14:55:30 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42776 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232016AbjFDSz3 (ORCPT ); Sun, 4 Jun 2023 14:55:29 -0400 Received: from mail-wm1-x335.google.com (mail-wm1-x335.google.com [IPv6:2a00:1450:4864:20::335]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id AD4DCE5C; Sun, 4 Jun 2023 11:55:16 -0700 (PDT) Received: by mail-wm1-x335.google.com with SMTP id 5b1f17b1804b1-3f61530506aso41339985e9.1; Sun, 04 Jun 2023 11:55:16 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20221208; t=1685904915; x=1688496915; 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=9/TmEA+PoC7xu6/KU/ll32pvJQ2ck1CrGNuRyF6FIV0=; b=h5sKFEV8TA0OBcHdACbXty9PxKz8jgUpGUFbiy/GvEKjYur0hVmD+06SUCGLY2yHn3 wHrmRZK1WNIdgSk5SS6PxT6kyriDte832Ogpjw6YI/1Su2MZrTtdLePKdfidrymZBSIC 0RxemvtGNmqSZC4pe6IFvElKtRIapasNwQJqi6FS4I93LoK3wdw/uMn/AGaUAq2Kkmb0 LMSDKc8O1QhhA8l+6CJf6kXCkrblhF5GuqRf0ednu15Ipzaju3PIIg0Mc4Xti0Bz5SRH v6r/EYkQGmGJaArsU5mnlErTUArViEoFOXVyEoX+YBqurbPADpdfhHiIqnHr5t9go+PI R9eg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1685904915; x=1688496915; 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=9/TmEA+PoC7xu6/KU/ll32pvJQ2ck1CrGNuRyF6FIV0=; b=C1qOAQO6eH8ryL7aTvLDDFWWouy3iXsBV5kB9xpjLUM9mZ4GT2G8IvWFjmEpAUzmra meNIiUu/cVoa1noE0gU1YGKv7kfJbGjGVn3OCjX+0mgDahcXxsO2zg7EIIxx2EhEgxHn yl/sPSHDX9CdUbnqdPb0XKpfYkpszCGMvrhrO67+3copdmICzlXYWAA4Su/bQJzlWvXv hY9AX/ongEYGdLg6VVSP46c4QZ005tawJxcjAO40BwqkjTUe2FkMwIkxojh/k4QqQEIr PODKdbP89GL2exVygYesqW+8QErE0cxclDARp30oS5IaSKD3bghVHO6zRZ3KPwfk3wHb q97g== X-Gm-Message-State: AC+VfDxM5JzkOtXU0XEZl1Ff9G/p8/gbdXJIYjjiKJnG529ZsU92tDij R43CEfLzsLX0E7XRNwWjxsznG5uW22YY2V1R X-Google-Smtp-Source: ACHHUZ6QHdcEGqIc3K5pPlZKWdJlxj3Jk7ECCuHaBZpxT2c/x9Cv/yIBXAYPcu1w8wPaqG+imTMVYQ== X-Received: by 2002:adf:fb42:0:b0:306:2ef0:d223 with SMTP id c2-20020adffb42000000b003062ef0d223mr4541453wrs.62.1685904914549; Sun, 04 Jun 2023 11:55:14 -0700 (PDT) Received: from user-PC.. ([178.134.198.138]) by smtp.gmail.com with ESMTPSA id l8-20020a5d4108000000b00304adbeeabbsm7636433wrp.99.2023.06.04.11.55.11 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 04 Jun 2023 11:55:14 -0700 (PDT) From: Maksim Kiselev To: linux-iio@vger.kernel.org Cc: Maxim 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 , Arnd Bergmann , =?utf-8?q?Leonard_G=C3=B6hrs?= , ChiYuan Huang , Ramona Bolboaca , Ibrahim Tilki , ChiaEn Wu , William Breathitt Gray , Haibo Chen , Hugo Villeneuve , 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 v3 3/3] riscv: dts: allwinner: d1: Add GPADC node Date: Sun, 4 Jun 2023 21:53:16 +0300 Message-Id: <20230604185336.1943889-4-bigunclemax@gmail.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230604185336.1943889-1-bigunclemax@gmail.com> References: <20230604185336.1943889-1-bigunclemax@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org From: Maxim Kiselev This patch adds declaration of the general purpose ADC for D1 and T113s SoCs. Signed-off-by: Maxim Kiselev --- 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";