From patchwork Mon Dec 11 12:27:47 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Li peiyu <579lpy@gmail.com> X-Patchwork-Id: 752688 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="mheZ+JDS" Received: from mail-pg1-x543.google.com (mail-pg1-x543.google.com [IPv6:2607:f8b0:4864:20::543]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 563C01BE; Mon, 11 Dec 2023 04:27:58 -0800 (PST) Received: by mail-pg1-x543.google.com with SMTP id 41be03b00d2f7-5ca29c131ebso59554a12.0; Mon, 11 Dec 2023 04:27:58 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1702297677; x=1702902477; 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=lh2d4eIQQpeZhqaTpIu7fiK0w7WGTGpR/zV0sJF4iLA=; b=mheZ+JDSfPxyfrUeBR/ZCpUThmxNTY1GBijL+IQH4SyQmZLz9S5rEBzTnQmzyQ20xO KpbkpXNm4LYitYZfYnbmdzW/WNqQvT5vk5x7ERl3DHImThRLl8i/WPgN2frog9+mxzjv bjO+VMFH0iFUSC7YxWOpszS4r0wtN9LC4vbLY0IEJJC1ZlfY1Wf5WA7EdgrS77h7MLtg P9/S4kPgaj/PJlB7Y7EkpmmBJpnMnEjumNs6FEV50YiAgbtcY4WBD6h/hVa4JLWIu7IB sWIoul0sOHqrfz6qGCzAKz0Nfn0cRCcD7LJVuEf9xkl7PIvCIFKqBPl04agYXrxSva6O PHBg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1702297677; x=1702902477; 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=lh2d4eIQQpeZhqaTpIu7fiK0w7WGTGpR/zV0sJF4iLA=; b=YWYpLaUkOobZNA1ZCuqdcGE4/uzx3TulIti3EfgoRwP4WG1MxXHZNIhG//A/SNJ2s0 OCjhwO5K296NI0t8f6Xkk3UiqeGHWsV6aBbgE+IZHJzImtulXRJkgsCHw+fovCGu7KnQ OuiXwjekECfSrhCrV6hvkpHIFYPesMPcZzcmjeP8XT+M1JvrXc3veZwrPmLRIzGcNZvV cEzFahIHpkdkSCPFTr5uv4nFJfbNPiA/w9mBGY7Se45lUKImkWquMsrdpV/+igVcU4o6 0+vjZdJJ+9tddR+MKE5kU78redPS1QOGA8/3aQxsOkAVFiDqiOkgZN7N168PZzAQltpZ Ze7Q== X-Gm-Message-State: AOJu0YxkHHLIyN3e2o1bmxR0RCL5JhqwXMjE4cOF6xv0sdoPVJsgyhVB 4YyCk8KN7TVdbpo3tLreuVmPJnfYhkVVgGG5 X-Google-Smtp-Source: AGHT+IE1TEJ++VWCi9AftDuGLa6dUkkntlusw+w0FMs/RT6hY2YzCnxHcDlZcQ1gRnxhwHFnlHCVBw== X-Received: by 2002:a17:90a:d407:b0:27c:f309:f381 with SMTP id r7-20020a17090ad40700b0027cf309f381mr3117162pju.6.1702297677385; Mon, 11 Dec 2023 04:27:57 -0800 (PST) Received: from dawn-virtual-machine.localdomain ([183.198.110.72]) by smtp.gmail.com with ESMTPSA id r11-20020a17090ad40b00b002868f5c2847sm6834746pju.7.2023.12.11.04.27.52 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 11 Dec 2023 04:27:56 -0800 (PST) From: Li peiyu <579lpy@gmail.com> To: jic23@kernel.org Cc: javier.carrasco.cruz@gmail.com, lars@metafoo.de, robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org, conor+dt@kernel.org, linux-iio@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v6 1/4] iio: core: introduce trough info element for minimum values Date: Mon, 11 Dec 2023 20:27:47 +0800 Message-Id: <20231211122747.9723-1-579lpy@gmail.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20231211122201.9598-1-579lpy@gmail.com> References: <20231211122201.9598-1-579lpy@gmail.com> Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 From: Javier Carrasco The IIO_CHAN_INFO_PEAK info element is used for maximum values and currently there is no equivalent for minimum values. Instead of overloading the existing peak info element, a new info element can be added. In principle there is no need to add a _TROUGH_SCALE element as the scale will be the same as the one required for INFO_PEAK, which in turn is sometimes omitted if a single scale for peaks and raw values is required. Add an IIO_CHAN_INFO_TROUGH info element for minimum values. Signed-off-by: Javier Carrasco --- drivers/iio/industrialio-core.c | 1 + include/linux/iio/types.h | 1 + 2 files changed, 2 insertions(+) diff --git a/drivers/iio/industrialio-core.c b/drivers/iio/industrialio-core.c index f6a123d397db..9a85752124dd 100644 --- a/drivers/iio/industrialio-core.c +++ b/drivers/iio/industrialio-core.c @@ -184,6 +184,7 @@ static const char * const iio_chan_info_postfix[] = { [IIO_CHAN_INFO_THERMOCOUPLE_TYPE] = "thermocouple_type", [IIO_CHAN_INFO_CALIBAMBIENT] = "calibambient", [IIO_CHAN_INFO_ZEROPOINT] = "zeropoint", + [IIO_CHAN_INFO_TROUGH] = "trough_raw", }; /** * iio_device_id() - query the unique ID for the device diff --git a/include/linux/iio/types.h b/include/linux/iio/types.h index 117bde7d6ad7..d89982c98368 100644 --- a/include/linux/iio/types.h +++ b/include/linux/iio/types.h @@ -68,6 +68,7 @@ enum iio_chan_info_enum { IIO_CHAN_INFO_THERMOCOUPLE_TYPE, IIO_CHAN_INFO_CALIBAMBIENT, IIO_CHAN_INFO_ZEROPOINT, + IIO_CHAN_INFO_TROUGH, }; #endif /* _IIO_TYPES_H_ */