From patchwork Tue Aug 25 12:47:11 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nishant Malpani X-Patchwork-Id: 11735669 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 30F83913 for ; Tue, 25 Aug 2020 12:48:16 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 19D7A2078A for ; Tue, 25 Aug 2020 12:48:16 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="cXoZCcdh" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728861AbgHYMsP (ORCPT ); Tue, 25 Aug 2020 08:48:15 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45680 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727941AbgHYMsJ (ORCPT ); Tue, 25 Aug 2020 08:48:09 -0400 Received: from mail-pg1-x541.google.com (mail-pg1-x541.google.com [IPv6:2607:f8b0:4864:20::541]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 99104C061574; Tue, 25 Aug 2020 05:48:08 -0700 (PDT) Received: by mail-pg1-x541.google.com with SMTP id o13so6768693pgf.0; Tue, 25 Aug 2020 05:48:08 -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=4269fKP33XlJpXg8yjCtAkVnsXDMAY6w7aJ7rv3Q3M0=; b=cXoZCcdhfytkmnTMsokXvLlvrp+x9/j5jLJpaflRFfXKbkLI8fNXIoVs2NJVWTXVCl CbygMLkkVo3e1I0wxWWbEosJkqHRLxfOR7WH+HmcWtVcLNm+6QhC+SlRMyCDuoVaO++l 3u77s46eU8Fti9PGm4wrerGQU4lRaZ+8JgKRRc47TGwBMYMYe2WyDmQNpW08Tk48vV8J EWBbsR3Tj3LJu2UtGGTdCXZZSdg0csCGc+vIioXNGWlSVEokqFcnzCUcttuOnQFOFcIX Su3SAfZDF9FyhvdGdAKvW7D4jjLfbkVxx1BrpD/t3ItTJ1PtfXlLCEIvy2UyRhD4mfY7 8kNA== 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=4269fKP33XlJpXg8yjCtAkVnsXDMAY6w7aJ7rv3Q3M0=; b=kcrrted2cL65oBDx313u7t2pQVLPqhsK06eLg4/tIJV/wGK6HzNux0GXTy0UXaEfpI YgvXcgS6OTE/6xAhKywiJLLuWMQCaXhvDgo5bW9IWN93igM0dorwH+VpGHOQQbGv4cAh PTo4cmigLGALiTqfYvjBufekMWM/bMj/b2ha4Ros1zt/8R4ePPmCGbEUmFRPHOqvavfr cyLpQIRRC4nQYvO3yLyWximgBIFc5bYgi/tasPjsmmKBIGPlDdUk00SELbjFDdfwdPDB WQTYoTfyaFJ5LbfkjbRiJ6TI3I5VkE3MZ7SYjRLo26cTqQrBzEPaDK6/9r1qL6LgJfYq Ek+g== X-Gm-Message-State: AOAM5309dos15yXEkcB7mRgiA8rdl6Ha/2K/70qF+4ooduzRfnEjqU99 ydYPNJQsyLinl7rR/iUQjGM= X-Google-Smtp-Source: ABdhPJyKqLBHjOHXcKbgxx6YQqv8L76E4HOjzEbGrQ+8+X5EMajVHExAlrgCk3/r9dhSPzwIYbVZBQ== X-Received: by 2002:a63:161d:: with SMTP id w29mr6416171pgl.16.1598359688232; Tue, 25 Aug 2020 05:48:08 -0700 (PDT) Received: from nish-HP-Pavilion ([2409:4072:619:dc6c:a526:a3b6:4686:f6fb]) by smtp.gmail.com with ESMTPSA id a20sm5675597pfi.11.2020.08.25.05.48.06 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 25 Aug 2020 05:48:07 -0700 (PDT) From: Nishant Malpani To: jic23@kernel.org, robh+dt@kernel.org Cc: dragos.bogdan@analog.com, darius.berghe@analog.com, linux-kernel@vger.kernel.org, linux-iio@vger.kernel.org, devicetree@vger.kernel.org, Nishant Malpani Subject: [PATCH 3/3] iio: gyro: adxrs290: Add debugfs register access support Date: Tue, 25 Aug 2020 18:17:11 +0530 Message-Id: <20200825124711.11455-4-nish.malpani25@gmail.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20200825124711.11455-1-nish.malpani25@gmail.com> References: <20200825124711.11455-1-nish.malpani25@gmail.com> MIME-Version: 1.0 Sender: linux-iio-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-iio@vger.kernel.org Extend support to read/write byte data from/to the device using debugfs iio interface. Signed-off-by: Nishant Malpani --- drivers/iio/gyro/adxrs290.c | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) diff --git a/drivers/iio/gyro/adxrs290.c b/drivers/iio/gyro/adxrs290.c index 25046590761e..b0050cdd2b90 100644 --- a/drivers/iio/gyro/adxrs290.c +++ b/drivers/iio/gyro/adxrs290.c @@ -435,6 +435,24 @@ static int adxrs290_read_avail(struct iio_dev *indio_dev, } } +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); + int ret; + + if (!readval) + return adxrs290_spi_write_reg(st->spi, reg, writeval); + + ret = spi_w8r8(st->spi, ADXRS290_READ_REG(reg)); + if (ret < 0) + return ret; + + *readval = ret; + + return 0; +} + static int adxrs290_data_rdy_trigger_set_state(struct iio_trigger *trig, bool state) { struct iio_dev *indio_dev = iio_trigger_get_drvdata(trig); @@ -547,6 +565,7 @@ 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)