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=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 66847C43461 for ; Thu, 10 Sep 2020 12:36:37 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 1185120BED for ; Thu, 10 Sep 2020 12:36:37 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="qG/rKcK2" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730463AbgIJMgQ (ORCPT ); Thu, 10 Sep 2020 08:36:16 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37746 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730396AbgIJMdB (ORCPT ); Thu, 10 Sep 2020 08:33:01 -0400 Received: from mail-pl1-x644.google.com (mail-pl1-x644.google.com [IPv6:2607:f8b0:4864:20::644]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id CFA80C061757; Thu, 10 Sep 2020 05:33:00 -0700 (PDT) Received: by mail-pl1-x644.google.com with SMTP id d16so831768pll.13; Thu, 10 Sep 2020 05:33:00 -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:mime-version :content-transfer-encoding; bh=4mAC7AY2dom2okuDhz5TwwH+eN++c0Zg21VAJ30tmZE=; b=qG/rKcK2HhixjeHOwx22cnu5vsq8XLz5RXaPsgu9QDXQi0LEGNYwf6bpkI5tuOVfQT qL94/g9KbH0MlePhTboZv1bJUtR36YPqv+MbGfsqVXmu+Pc7gs527U0DLNOq2WYytdgI P3KsMw7cWHxNhbHzImQRJBSsk2vprNBqSXj/tC3ub/BKPPqhSgOxjhXzbseGFv15Jxlx LmmPekD31CngpQVRV1iRcLrwUXYE9y7kymgY5eNhL5o9G9grrXtPUj6862e9XZd7kBFP u/qtP2vXk/DHK7cOlm6L2z46IB1k2nCopfwArf4KK0oRAfF+B33VAl4wFMWfUYLcT/T9 vtSw== 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:mime-version :content-transfer-encoding; bh=4mAC7AY2dom2okuDhz5TwwH+eN++c0Zg21VAJ30tmZE=; b=IvznwsfCnS262FikdhG5KNk+Q6736DELg7yHjNIvE4zJotlmWroF6QF53JeB4qLR+h d1K7oxyXUfRuY/6/MuAVSJy1fzJVYj13fYYJxBK7fnG2YWJHYOWXB5Mwnzyue4u90ty1 dABEar+eU5fKNlx16LWfrlhouCk/LmDGSxkwZtdL7JWnEjiIS5SuD8fcEPDuupaAAPEj 5epe0uvU3YF5j3qKCC6iurzanCOZk/rU4zTwjKvHNEUwlFRACWzzT7+rmAx0NCr+yb2H +rXktMmw4mw8E1p0iTLjvYOXVRersRxN2TfhyeA1DceO2MA9j6DgY3YSY0wcr95A85dG seDA== X-Gm-Message-State: AOAM533YJuH6/eLHFqYsFT8sTBaMRuBnl9VloKNjIcXfSIzz7C7u365g BcYH4P6NIVJpNBuVReDmI14= X-Google-Smtp-Source: ABdhPJxLK5IOkPuZQSvSgkg8AkXwFKqrh/T7qtwK4UBm7gI5yfAXyN4l5FBr5fZALkKhZHOCS02vEg== X-Received: by 2002:a17:902:74c8:: with SMTP id f8mr5383439plt.78.1599741180451; Thu, 10 Sep 2020 05:33:00 -0700 (PDT) Received: from nish-HP-Pavilion ([2409:4072:6218:54d7:9928:e984:12bb:783d]) by smtp.gmail.com with ESMTPSA id j14sm5031485pgf.76.2020.09.10.05.32.58 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 10 Sep 2020 05:32:59 -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: [PATCH v3 3/3] iio: gyro: adxrs290: Add debugfs register access support Date: Thu, 10 Sep 2020 18:02:49 +0530 Message-Id: <20200910123249.17204-1-nish.malpani25@gmail.com> X-Mailer: git-send-email 2.20.1 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. 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