From patchwork Wed Dec 6 13:48:19 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: 751352 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="UJvXA19L" Received: from mail-pl1-x641.google.com (mail-pl1-x641.google.com [IPv6:2607:f8b0:4864:20::641]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id AF5CAC3; Wed, 6 Dec 2023 05:48:36 -0800 (PST) Received: by mail-pl1-x641.google.com with SMTP id d9443c01a7336-1d0ccda19eeso11718615ad.1; Wed, 06 Dec 2023 05:48:36 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1701870516; x=1702475316; 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=VuRiXX+tHD8qpaoQh6okUrfYXevnVhYrWjiozg0Jp5A=; b=UJvXA19LveTth5rIb+QtqYfTJiXYlRue04PwaX1gggDwVZ3kydnyH2gUEGXfYcMVmR NdkAIHJmGwQ++Ray+Hra2BiLHhddEN8qjtakywsRxHxhqAijLdiMphwiPrBjifuo89Tl VZiF7kg6dXaWe0Qx4RBaW3HBNGVIZ985n+7FKRsHji4IYFx+tLbgGWf+8AH5m3xTq4Xc 6niRLdoycjNig5WtQ5tb96jghtfXn9+OVfm94aB/BAXxA4pGEbs6sZcACMIXTNvVpQac Ln0u07GzmXhlqdV+LK7h7PDyLF7UyzEtBkJhIraLTlAFSouHHH4WuWlhPyHfLf6bKlVG Mz7A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1701870516; x=1702475316; 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=VuRiXX+tHD8qpaoQh6okUrfYXevnVhYrWjiozg0Jp5A=; b=nZAdDiIecLjD+f6BNBK1UpiCb2T0SPbPpCBOkSq+9Ouy67dcp9dNyHHn8FiyvlJLeP Bf5Tr3HqaD8BAr7OYmc7N01pXOKDS+UtxuznATvYEt6CSWHx7KIyAcYzmTYNFkU8V3pY /W0hKfrKiB549kpi+r+BF6ADTDXJ0L2Y0AiS/KkLKYdxu3y7EJzqEkmFgG37p83xIVWi L+jTS8HNNlnuQgzQ8EoOPvOxS3LmNk/2RvSyM+jm+aDg8z0Qd+oyyF77wjSUx3Q9Omdn JPKBvzd8adt7QVktCdXcvkOo3G9asPOFPj8Pdjg1/PwoYvIVFcRCEFkhQIwN6+wQQcc1 8AFg== X-Gm-Message-State: AOJu0YwY35qj957yqbx96jW4CGN1ZnkjNtrQ+KRItcjV6uq9fBnvcev6 wQx3b1kQ53eTEGxknfYzHz0= X-Google-Smtp-Source: AGHT+IHJCnNN6jAi/auxopsAFgFgPJ/SKihWkFX7W9wBYi3ra5wXzfUbJT2PlIu9KFCLvS7T3bCOUQ== X-Received: by 2002:a17:902:c40d:b0:1d0:6ffe:1e90 with SMTP id k13-20020a170902c40d00b001d06ffe1e90mr639926plk.115.1701870515952; Wed, 06 Dec 2023 05:48:35 -0800 (PST) Received: from dawn-virtual-machine.localdomain ([183.198.59.249]) by smtp.gmail.com with ESMTPSA id l4-20020a170902eb0400b001d055328e1dsm3525812plb.223.2023.12.06.05.48.31 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 06 Dec 2023 05:48:35 -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 v4 1/4] iio: core: introduce trough modifier for minimum values Date: Wed, 6 Dec 2023 21:48:19 +0800 Message-Id: <20231206134819.559496-1-579lpy@gmail.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20231206134655.559474-1-579lpy@gmail.com> References: <20231206134655.559474-1-579lpy@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 modifier is used for maximum values and currently there is no equivalent for minimum values. Instead of overloading the existing peak modifier, a new modifier can be added. In principle there is no need to add a _TROUGH_SCALE modifier as the scale will be the same as the one required for the INFO_PEAK modifier, which in turn is sometimes omitted if a single scale for peaks and raw values is required. Add an IIO_CHAN_INFO_TROUGH modifier 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 c77745b594bd..351c64c2f4da 100644 --- a/drivers/iio/industrialio-core.c +++ b/drivers/iio/industrialio-core.c @@ -182,6 +182,7 @@ 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_ */