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=-12.6 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable 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 D25C6C433E2 for ; Thu, 10 Sep 2020 18:07:17 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 7DD8221D79 for ; Thu, 10 Sep 2020 18:07:17 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="CH6PGgp3" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726848AbgIJSHM (ORCPT ); Thu, 10 Sep 2020 14:07:12 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33620 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726663AbgIJSF7 (ORCPT ); Thu, 10 Sep 2020 14:05:59 -0400 Received: from mail-pg1-x544.google.com (mail-pg1-x544.google.com [IPv6:2607:f8b0:4864:20::544]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4E14DC0613ED; Thu, 10 Sep 2020 11:05:59 -0700 (PDT) Received: by mail-pg1-x544.google.com with SMTP id w186so4643809pgb.8; Thu, 10 Sep 2020 11:05:59 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=zosGERDH1CFvyq304LgFyQ88QlOJKzUmNYvnZLuiMG8=; b=CH6PGgp3FSZ4qxodNPZ+nSskkygJJKKwLoJvqVniOEdi19tjDcntzdPZrGsN55HZnh nD5HK0osrtlErQmXrv8SJPuQ5qxhusfvT+Wxwi/vyIYnOkgj7lEzHhvFXVqslrVMn0Yc jFxrG1jhPRmNvcHl83Pak8EAHXbSelAeXCw7keaRLR/6Ca9/K1bNRK3gj9bmmBCDEYXD 4Q/WeF5uRWQO4i/zArgDcqf9BGiDSB14YqjHWf9fjnahIxkoUVMvXlgGOjyXTjkYiIUW YFFjegD82vq5KZvBGn7n/DUlL1UXxtV/MyJrwzCcAHsJbg7t0P6WJTfEfE4uKkqvrGxS IWVQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=zosGERDH1CFvyq304LgFyQ88QlOJKzUmNYvnZLuiMG8=; b=sxhqhlYy/IXYoo8PtS2RMBAa3crBvXeI3YD9PesOTLMp76hbf0kNWnmKBMHncAJ00W 5YvTospuDjnz26VTpVHjnVXM+qRE89/mjxVFX14mJo0T6jWV2zJWmGE5Bi4bab6U0Vk+ 8Tz/4BWROZEjhkapGWUwKmuMaufx8ao83mY8Dvx7Q4aTKn9Ve87Bq5YVRgPz1VSlgQYB sEvSWymlC/NRhYaJacRObU0XiPmFUaj9kcq9ig1CSoXgZJlJQdbFW0Lozzjj5Q55zv6E ujuOWbSPyRrHaQGsOE9w40G2r5gctljuWwnlY7nWKT71mWSxowNIYjwoLx3secBytrtk tcjg== X-Gm-Message-State: AOAM531ZBCLfbL4pq1VBEqH2qSDh31XuAo0v8+GYxRD8FM4hmekChHJT sXjK79/vMdw4QTuu4IVS3p0= X-Google-Smtp-Source: ABdhPJxG9TWQJkNAZIED4Ou2mwJSB4vVmMpq06OclCcEhQb42xioXYD1oDdA06kF9HBMjA9cMMrCbQ== X-Received: by 2002:a63:c608:: with SMTP id w8mr3103345pgg.252.1599761158935; Thu, 10 Sep 2020 11:05:58 -0700 (PDT) Received: from nish-HP-Pavilion ([2409:4072:6218:54d7:9928:e984:12bb:783d]) by smtp.gmail.com with ESMTPSA id 64sm6679090pfz.204.2020.09.10.11.05.57 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 10 Sep 2020 11:05:58 -0700 (PDT) From: Nishant Malpani To: jic23@kernel.org, robh+dt@kernel.org Cc: linux-kernel@vger.kernel.org, linux-iio@vger.kernel.org, devicetree@vger.kernel.org, andy.shevchenko@gmail.com, Nishant Malpani Subject: [RESEND PATCH v3 3/3] iio: gyro: adxrs290: Add debugfs register access support Date: Thu, 10 Sep 2020 23:34:50 +0530 Message-Id: <20200910180450.29696-4-nish.malpani25@gmail.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20200910180450.29696-1-nish.malpani25@gmail.com> References: <20200910180450.29696-1-nish.malpani25@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Extend support to read/write byte data from/to the device using debugfs iio interface. Reviewed-by: Andy Shevchenko Signed-off-by: Nishant Malpani --- Changes in v3: - refactor code based on Andy's suggestions No changes in v2 --- drivers/iio/gyro/adxrs290.c | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+) diff --git a/drivers/iio/gyro/adxrs290.c b/drivers/iio/gyro/adxrs290.c index 41b1f995a143..ca6fc234076e 100644 --- a/drivers/iio/gyro/adxrs290.c +++ b/drivers/iio/gyro/adxrs290.c @@ -436,6 +436,31 @@ static int adxrs290_read_avail(struct iio_dev *indio_dev, } } +static int adxrs290_reg_access_rw(struct spi_device *spi, unsigned int reg, + unsigned int *readval) +{ + int ret; + + ret = spi_w8r8(spi, ADXRS290_READ_REG(reg)); + if (ret < 0) + return ret; + + *readval = ret; + + return 0; +} + +static int adxrs290_reg_access(struct iio_dev *indio_dev, unsigned int reg, + unsigned int writeval, unsigned int *readval) +{ + struct adxrs290_state *st = iio_priv(indio_dev); + + if (readval) + return adxrs290_reg_access_rw(st->spi, reg, readval); + else + return adxrs290_spi_write_reg(st->spi, reg, writeval); +} + static int adxrs290_data_rdy_trigger_set_state(struct iio_trigger *trig, bool state) { @@ -551,6 +576,7 @@ static const struct iio_info adxrs290_info = { .read_raw = &adxrs290_read_raw, .write_raw = &adxrs290_write_raw, .read_avail = &adxrs290_read_avail, + .debugfs_reg_access = &adxrs290_reg_access, }; static int adxrs290_probe_trigger(struct iio_dev *indio_dev) -- 2.20.1