From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pl1-f178.google.com (mail-pl1-f178.google.com [209.85.214.178]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 50A2647887A for ; Wed, 3 Jun 2026 18:49:41 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.214.178 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1780512582; cv=none; b=RsTfnN50+XzUMbu1EqxCNWOMPr7hHbBOOeEEBDmJk5C2Fj2ZCsBTQ7TGBp5GxL1qabDZhiuDlaXWA7Ww1BMqqbW1NoGfZXHSDPYJWkd/XTyxjMiJ6bRKBKGVXezV9trQ98NyhqERY0yfq5B6luZb/iK03fj8imBrogf6qQSJsYk= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1780512582; c=relaxed/simple; bh=GP/zXsIk7W/qQ+UNS2wJhazgPEjZIr5oEO/HNA2gsAk=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=iLuLIlguPZ6mYQoyn4NrFXN59BDhmBZNAROnWq8UyQ7aNmh2Z2AR2g8OuaXtXn9f9OgbVZg/WmYc/HJi9DGRL/tVOvmZpaeKcrwfn+F22x/L+6UwAIepkxA1PDcWWezjo1U2GQUYjLA2FfX9O+MeI+RRB/WLgiS0E63TrF5WPVI= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=omYHZ2SM; arc=none smtp.client-ip=209.85.214.178 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="omYHZ2SM" Received: by mail-pl1-f178.google.com with SMTP id d9443c01a7336-2c168baac83so5477445ad.2 for ; Wed, 03 Jun 2026 11:49:41 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20251104; t=1780512580; x=1781117380; darn=vger.kernel.org; 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=2d3GApoepHVx+uh3La4WWn+PmYLbQZlFvom3bYXI8VQ=; b=omYHZ2SM0ACQiBUEAzyuKr44yVdvGKcTl848iXfq5dZvKywtqVHm43wdA6qwjWRDE3 aTVb+w5bMg8UjaJ93wkwQ0tTXKOqzxcLNqDc3GBugBfMqBnLNtNRMcsUx4DUgAIRiu4F hTPWiW0PiSxaj4tB9hlSOJ9YhWu2f/QXc7wl+RR8vGCB5BzNN8fCE8ofmeh/fxItfkY1 b+Wrt0WBkWfZNSlvZX4SfJTCgjU23rw5Kvaqttw4M2qtRB/i5vIk95Al6+NFJnjQoagr TaaBpwQKoZIbxWKbyh/Umfcx3cQI5kwexPktagUuS342MNyRM8VaHnY7hAXR2xeoMOOL PjYA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1780512580; x=1781117380; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-gg:x-gm-message-state:from :to:cc:subject:date:message-id:reply-to; bh=2d3GApoepHVx+uh3La4WWn+PmYLbQZlFvom3bYXI8VQ=; b=dC/FmtWJrbaonaKFAp90lk43fKIOCG5mxAvF1WLkVbnt8IXVLe67T+x+VT/jDoxgOv JcHYQPJHNUnIp/EXRUGvm6tfSaxC47b5+dEl6NaAudLMsMARXJpAfFkLARot14OjstDo dSFP3flT+JwYohoj3JznClDp/RDJnx42ILIX1NmPox8HX/R1U4uBgpcDlgSHxhgf9whn NIkitVpEbnR4rszJGsKfbzRD5DgAlt/nQBTtuysd7qUTDwSOlNi4BmkhN4hDMj9wHQd4 Zs8WfE2Z/ox7JNXAyfat1OiM2mJMxVcCOE4Q7XufgTsweNxe2ygA4KBkce8ZGuZ3pCUq RtDQ== X-Gm-Message-State: AOJu0YyNxQed+OX5wH9W50ZsekAOgpTlKsMxNcwYcTXlcp/DgujspBNm WNmjBFWGY+HthNOdBctbxHGfcfs5gFLVfWj9CHoS8L2DcAgyL0eL4mQFoMglfg== X-Gm-Gg: Acq92OGe1dRqAazUckMBFVA5UzLjqfgbDiIbeMlKot042YoDhv/TPy8Bh7FDi3Xep9V /oqfh+i7qA9WTkF4g8hazaiNNIprYkjVwBv4Zvtai9mlANqmOAc5BoWWarjhsYnlgKWdZDkMOAV Qq4Zwe+ISMMo94zillw5WETA+rd9C83H51KJ7zpFLEJXFC6/YcZpB/sfJWf6U+HFohZNijTsRp1 TIrUxMuB1kWX4RGoRXVy1yjtE0+DyWSyTggRt7WY6fFCdb2dYj5DWMaPsykmw2vWQjvo7IuNHkp AwTqnBP0lzaXHbERNmOP9TFfh389OWRc7s/mxgyMLIliOYUBa1TeMjUAd/eVrtr7NCTkNJoNmMQ U0uNFo00nPw/5iBxoGAxn45Gl0r83SA4iBoKGlC4QwF1D53kytjMVSZTSIOR/E1qrOxHhAu4g7+ fhELUOAQFGaVg3aOYqGazyZiLa1q+fo0AjF/Wu5GpsBY4A1zAso4SrN49raalPGdSH2Wr9Ls+gE SwtxQXy7V6CG/QXfJSFj77qKrKCO6RJ3bO56rk01AEYR5atWGFVsg== X-Received: by 2002:a17:903:acd:b0:2c0:ab82:6b99 with SMTP id d9443c01a7336-2c1644ec5cemr45165205ad.33.1780512580507; Wed, 03 Jun 2026 11:49:40 -0700 (PDT) Received: from lord-daniel-VivoBook-ASUSLaptop-K3502ZA-S3502ZA.. ([2409:40c1:4015:6e6f:ee79:7998:9a6f:65e3]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-2c164f6d59csm32139675ad.4.2026.06.03.11.49.35 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 03 Jun 2026 11:49:40 -0700 (PDT) From: Piyush Patle To: linux-iio@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Cc: jic23@kernel.org, ak@it-klinger.de, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, andy@kernel.org, nuno.sa@analog.com, dlechner@baylibre.com Subject: [PATCH v11 06/11] iio: adc: hx711: introduce hx711_chip_info structure Date: Thu, 4 Jun 2026 00:18:54 +0530 Message-ID: <20260603184859.89693-7-piyushpatle228@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260603184859.89693-1-piyushpatle228@gmail.com> References: <20260603184859.89693-1-piyushpatle228@gmail.com> Precedence: bulk X-Mailing-List: linux-iio@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Add a per-variant static configuration structure and populate the IIO device fields from it at probe time. This is a preparatory change for adding support for more HX711-compatible hardware variants without duplicating the probe-time setup. No functional change for existing HX711 users. Signed-off-by: Piyush Patle Reviewed-by: Andy Shevchenko --- drivers/iio/adc/hx711.c | 41 ++++++++++++++++++++++++++++++++++++----- 1 file changed, 36 insertions(+), 5 deletions(-) diff --git a/drivers/iio/adc/hx711.c b/drivers/iio/adc/hx711.c index 86d2a70dd3de..10ccc69f209b 100644 --- a/drivers/iio/adc/hx711.c +++ b/drivers/iio/adc/hx711.c @@ -4,6 +4,8 @@ * * Copyright (c) 2016 Andreas Klinger */ +#include +#include #include #include #include @@ -74,6 +76,20 @@ static int hx711_get_scale_to_gain(const int *gain_scale, int scale) return -EINVAL; } +/** + * struct hx711_chip_info - per-variant static configuration + * @name: IIO device name + * @channels: channel specification array + * @num_channels: number of entries in @channels + * @iio_info: IIO info ops for this variant + */ +struct hx711_chip_info { + const char *name; + const struct iio_chan_spec *channels __counted_by_ptr(num_channels); + unsigned int num_channels; + const struct iio_info *iio_info; +}; + struct hx711_data { struct device *dev; struct gpio_desc *gpiod_pd_sck; @@ -81,6 +97,7 @@ struct hx711_data { int gain_set; /* gain set on device */ int gain_chan_a; /* gain for channel A */ int gain_scale[HX711_GAIN_MAX]; + const struct hx711_chip_info *chip_info; struct mutex lock; /* * triggered buffer @@ -456,8 +473,16 @@ static const struct iio_chan_spec hx711_chan_spec[] = { IIO_CHAN_SOFT_TIMESTAMP(2), }; +static const struct hx711_chip_info hx711_chip = { + .name = "hx711", + .channels = hx711_chan_spec, + .iio_info = &hx711_iio_info, + .num_channels = ARRAY_SIZE(hx711_chan_spec), +}; + static int hx711_probe(struct platform_device *pdev) { + const struct hx711_chip_info *chip_info; struct device *dev = &pdev->dev; struct hx711_data *hx711_data; struct iio_dev *indio_dev; @@ -473,6 +498,12 @@ static int hx711_probe(struct platform_device *pdev) mutex_init(&hx711_data->lock); + chip_info = device_get_match_data(dev); + if (!chip_info) + return dev_err_probe(dev, -ENODEV, "missing driver data\n"); + + hx711_data->chip_info = chip_info; + /* * PD_SCK stands for power down and serial clock input of HX711 * in the driver it is an output @@ -534,11 +565,11 @@ static int hx711_probe(struct platform_device *pdev) hx711_data->data_ready_delay_ns = 1000000000 / hx711_data->clock_frequency; - indio_dev->name = "hx711"; - indio_dev->info = &hx711_iio_info; + indio_dev->name = chip_info->name; + indio_dev->info = chip_info->iio_info; indio_dev->modes = INDIO_DIRECT_MODE; - indio_dev->channels = hx711_chan_spec; - indio_dev->num_channels = ARRAY_SIZE(hx711_chan_spec); + indio_dev->channels = chip_info->channels; + indio_dev->num_channels = chip_info->num_channels; ret = devm_iio_triggered_buffer_setup(dev, indio_dev, iio_pollfunc_store_time, @@ -555,7 +586,7 @@ static int hx711_probe(struct platform_device *pdev) } static const struct of_device_id of_hx711_match[] = { - { .compatible = "avia,hx711", }, + { .compatible = "avia,hx711", .data = &hx711_chip }, { } }; -- 2.43.0