From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.6 required=3.0 tests=BAYES_00,DKIMWL_WL_MED, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT,USER_IN_DEF_DKIM_WL autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 55837C43332 for ; Tue, 5 Jan 2021 23:10:11 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 3E4FB22EBF for ; Tue, 5 Jan 2021 23:10:11 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727890AbhAEXKJ (ORCPT ); Tue, 5 Jan 2021 18:10:09 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53916 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727448AbhAEXKH (ORCPT ); Tue, 5 Jan 2021 18:10:07 -0500 Received: from mail-pf1-x44a.google.com (mail-pf1-x44a.google.com [IPv6:2607:f8b0:4864:20::44a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 3DDCFC061795 for ; Tue, 5 Jan 2021 15:09:27 -0800 (PST) Received: by mail-pf1-x44a.google.com with SMTP id x21so450989pff.14 for ; Tue, 05 Jan 2021 15:09:27 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=sender:date:in-reply-to:message-id:mime-version:references:subject :from:to:cc; bh=3QQTYrRGvdGiP5J+1ZbyRpWtam1Wq+KjywVYS8/XwHY=; b=k8ZE3PyggTJSgblvZ+b3RcAVjj2MHU2Nyyb7IziH8GjdhUCpsfyJanhJdL9G9qznSR fChz3/Qmp3sp/SGid8UwZee8wpOgQRhUEeGdVNET4CuaS/xCCHixB3Zbe2egQVvXQaVo YvQtche5ilHDy7x+pskv9POs4+CRGwyOS6anrvUsvGcH1RC/mPcnjsmHXFw6AKCkLhwv wVvMIq++8YpCC6j4yEakIrOv7RSJzC1pmvzkp/xIJaypUrjJZqevx5atcpFUgDJVMpbq dackgtzWSFks/uvGfdBWarA0FALhtFE9NguRoHeBaGDUx1RDG9R7F2K82fFmm1ZN+yT5 A2eg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:sender:date:in-reply-to:message-id:mime-version :references:subject:from:to:cc; bh=3QQTYrRGvdGiP5J+1ZbyRpWtam1Wq+KjywVYS8/XwHY=; b=ulDBAZSOe0cDhXJEnYHURgy+94nxEDHCLwX3K2OeX/ED6bfN8TMVvJ24w0U+K94l2P Pk2pWLPaP4sok4Vji1Jsk1qEb5qdzMPINcNLXwEnJ0QLb7sznyRhldMUEHFqWKcSONlr 1pi+tSS2u8dXIzWAIEg+2hJ3z998QTmu4qS+NqkCPsoHb/6qlEAjzdpf5aJ8MwoH/MHL 2eFP5kMVfjZNn0tzE1YIUClzWXhUXRBHxaW9EYYgOrPCKDYAS0HvV0y9XPZ8XMM/AC1n FDnidsIyUOr5Cd0WwFQgwuGC/3rbbMP++OOqFs6NowkT1WeZkRtbHO3NUY/shFoGVPR7 huXg== X-Gm-Message-State: AOAM533NmVc/tqVUzlCFWAYD1mcpO1DOhf0rOx2eI2D0CbwYZNq734RG 7YvFWoGnUXiynTSducd+jgDLko2u2Okdzg== X-Google-Smtp-Source: ABdhPJxvqBwvgZF6Lxv8gb5kfaOQ7GBKC23lhFfPoMF23kbDAXs8Qh+5oLmgfgduzTbZcDnQM+iIdbdSi/Z7NQ== Sender: "jbhayana via sendgmr" X-Received: from jbhayana.c.googlers.com ([fda3:e722:ac3:10:24:72f4:c0a8:42b2]) (user=jbhayana job=sendgmr) by 2002:a17:90a:f288:: with SMTP id fs8mr1354336pjb.184.1609888166723; Tue, 05 Jan 2021 15:09:26 -0800 (PST) Date: Tue, 5 Jan 2021 23:09:20 +0000 In-Reply-To: <20201230123748.4e969f82@archlinux> Message-Id: <20210105230920.769144-1-jbhayana@google.com> Mime-Version: 1.0 References: <20201230123748.4e969f82@archlinux> X-Mailer: git-send-email 2.29.2.729.g45daf8777d-goog Subject: Reply to [RFC PATCH v2 0/1] Adding support for IIO SCMI based sensors From: Jyoti Bhayana To: Jonathan Cameron , Hartmut Knaack , Lars-Peter Clausen , Peter Meerwald-Stadler , Jyoti Bhayana , Mauro Carvalho Chehab , "David S. Miller" , Rob Herring , Lukas Bulwahn Cc: linux-kernel@vger.kernel.org, linux-iio@vger.kernel.org, cristian.marussi@arm.com, sudeep.holla@arm.com, egranata@google.com, mikhail.golubev@opensynergy.com, Igor.Skalkin@opensynergy.com, Peter.hilber@opensynergy.com, ankitarora@google.com Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-iio@vger.kernel.org Hi Jonathan, > So, sensor_max_range can effectively be exposed as a combination of > scale and the *_raw_avail for a raw read (via the read_avail callback in IIO). > We'll ignore the fact the interface assumes a single value (so I assume symmetric?) Based on the SCMI specification the sensor min range and max range are 64 bits signed number. looks like IIO_AVAIL_RANGE can only take the following types of data which all looks like 32 bit. IIO_VAL_FRACTIONAL also takes two int type numbers. How can I send 64 bit sensor range using this and read_avail callback? #define IIO_VAL_INT 1 #define IIO_VAL_INT_PLUS_MICRO 2 #define IIO_VAL_INT_PLUS_NANO 3 #define IIO_VAL_INT_PLUS_MICRO_DB 4 #define IIO_VAL_INT_MULTIPLE 5 #define IIO_VAL_FRACTIONAL 10 #define IIO_VAL_FRACTIONAL_LOG2 11 #define IIO_VAL_CHAR 12 Thanks, Jyoti