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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 9265CC4332F for ; Wed, 6 Apr 2022 18:11:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240442AbiDFSNd (ORCPT ); Wed, 6 Apr 2022 14:13:33 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42724 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S240358AbiDFSNM (ORCPT ); Wed, 6 Apr 2022 14:13:12 -0400 Received: from mail-pl1-x635.google.com (mail-pl1-x635.google.com [IPv6:2607:f8b0:4864:20::635]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E6B237676 for ; Wed, 6 Apr 2022 09:50:41 -0700 (PDT) Received: by mail-pl1-x635.google.com with SMTP id n8so2482691plh.1 for ; Wed, 06 Apr 2022 09:50:41 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=53sX0CQ0dSON0UrxsaG2RHL4F5xS2YOFLLPeADqFZXc=; b=nJOnU3mFPmzMNMMWYADu/x5bs+vys214sWEUHjki9biwd0uDPdNyflMt3p4loIxQoD YYR98iSr4RI1SteBsjtXI2quY1Ofbx4sMmMZLOpRJ7i8SDYJ8O+I7qJCQJOxI+hvkkL8 fH9Th5Rl7MuBOcLdIoW96IV58FXjFfOit7foY= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=53sX0CQ0dSON0UrxsaG2RHL4F5xS2YOFLLPeADqFZXc=; b=okjBtCIzlOK3Zm48e9UFhntBZZ6VqqT7RdfOOw4g0+a2mmpR+IeoJWSpomru1hgxiM PvfewBEDCe6zi8HUmhl8KSZ9juVa1Beb4iyqMX0vkPe7g3hyxMSQtDOKy7z6sO0eSnj3 q2GJg8uA2LQ8OFiYzutFmqdMEU+2fGAKOskhhzjuH5jztPoHANozLoBTSyxJcsiP3LZV qq7OhWYRxQ1vUiCrXRkvcKj7uAtuWvvvzMzXe19hoFTh+HLzylgrDsQyyMGpCnNNSee0 4DNXNmyhXZnxocdzbRrs/abl/rU2YoQP0Na8ZR5lHVwCHyyFet8wll2yS/BHlH0+LTi9 DRtQ== X-Gm-Message-State: AOAM532jgY5I07KnmttWm7QibfO2x0XKj9YsDUuzBnM3RLQg0VX8Wefm 20vg/XFAKgaJjDoAJ7eFSvXKPQ== X-Google-Smtp-Source: ABdhPJzDtKK4ffie+FK5FYkGI38BvdFWKS60/cXQ0DEADdP15hgakmPadlbxTklI6kRa6OcmBgxfbg== X-Received: by 2002:a17:90b:4a47:b0:1c6:42c6:fef2 with SMTP id lb7-20020a17090b4a4700b001c642c6fef2mr10717342pjb.147.1649263841428; Wed, 06 Apr 2022 09:50:41 -0700 (PDT) Received: from localhost ([2620:15c:202:201:c9d3:469f:91e4:c022]) by smtp.gmail.com with UTF8SMTPSA id s3-20020a056a00194300b004f6da3a1a3bsm22030709pfk.8.2022.04.06.09.50.40 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 06 Apr 2022 09:50:41 -0700 (PDT) From: Gwendal Grignou To: jic23@kernel.org, robh+dt@kernel.org, swboyd@chromium.org Cc: linux-iio@vger.kernel.org, devicetree@vger.kernel.org, Gwendal Grignou Subject: [PATCH v4 8/8] iio: sx9360: Add pre-charge resistor setting Date: Wed, 6 Apr 2022 09:50:11 -0700 Message-Id: <20220406165011.10202-9-gwendal@chromium.org> X-Mailer: git-send-email 2.35.1.1094.g7c7d902a7c-goog In-Reply-To: <20220406165011.10202-1-gwendal@chromium.org> References: <20220406165011.10202-1-gwendal@chromium.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-iio@vger.kernel.org Add ability to set the precharge internal resistance from the device tree. Signed-off-by: Gwendal Grignou Reviewed-by: Stephen Boyd --- Changes since v3: - Added Review tags. Changes since v2: - Change kOhms into ohms. Changes since v1: - Suffix field with kOhms unit. drivers/iio/proximity/sx9360.c | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-) diff --git a/drivers/iio/proximity/sx9360.c b/drivers/iio/proximity/sx9360.c index 3ebb30c8a4f61..21cade4358aeb 100644 --- a/drivers/iio/proximity/sx9360.c +++ b/drivers/iio/proximity/sx9360.c @@ -51,6 +51,8 @@ #define SX9360_REG_GNRL_REG_2_FREQ(_r) (SX9360_FOSC_HZ / ((_r) * 8192)) #define SX9360_REG_AFE_CTRL1 0x21 +#define SX9360_REG_AFE_CTRL1_RESFILTIN_MASK GENMASK(3, 0) +#define SX9360_REG_AFE_CTRL1_RESFILTIN_0OHMS 0 #define SX9360_REG_AFE_PARAM0_PHR 0x22 #define SX9360_REG_AFE_PARAM1_PHR 0x23 #define SX9360_REG_AFE_PARAM0_PHM 0x24 @@ -671,7 +673,7 @@ static const struct sx_common_reg_default sx9360_default_regs[] = { { SX9360_REG_GNRL_CTRL1, 0x00 }, { SX9360_REG_GNRL_CTRL2, SX9360_REG_GNRL_CTRL2_PERIOD_102MS }, - { SX9360_REG_AFE_CTRL1, 0x00 }, + { SX9360_REG_AFE_CTRL1, SX9360_REG_AFE_CTRL1_RESFILTIN_0OHMS }, { SX9360_REG_AFE_PARAM0_PHR, SX9360_REG_AFE_PARAM0_RSVD | SX9360_REG_AFE_PARAM0_RESOLUTION_128 }, { SX9360_REG_AFE_PARAM1_PHR, SX9360_REG_AFE_PARAM1_AGAIN_PHM_6PF | @@ -722,6 +724,14 @@ sx9360_get_default_reg(struct device *dev, int idx, memcpy(reg_def, &sx9360_default_regs[idx], sizeof(*reg_def)); switch (reg_def->reg) { + case SX9360_REG_AFE_CTRL1: + ret = device_property_read_u32(dev, + "semtech,input-precharge-resistor-ohms", + &raw); + reg_def->def &= ~SX9360_REG_AFE_CTRL1_RESFILTIN_MASK; + reg_def->def |= FIELD_PREP(SX9360_REG_AFE_CTRL1_RESFILTIN_MASK, + raw / 2000); + break; case SX9360_REG_AFE_PARAM0_PHR: case SX9360_REG_AFE_PARAM0_PHM: ret = device_property_read_u32(dev, "semtech,resolution", &raw); -- 2.35.1.1094.g7c7d902a7c-goog