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 mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id E3AE9C433EF for ; Sun, 26 Sep 2021 14:10:30 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 9B01E60F9B for ; Sun, 26 Sep 2021 14:10:30 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 9B01E60F9B Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Subject:Cc:To:From:Date:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=vDNu27GFYvqxvWPByKtEvV/VzvmLFqT8uu4yMHP6r/I=; b=KntUArP71Qq4N3 fjv6yZ/nagNM+o8eE+RxGeDHdZo2BwaM155lf8s7PxuSwkrVmR7+cmLCVkKsghY17lphUB4MkPPqe /ep2/j0olZ1bF2N6W/cxNZibF1p5gaDLcG7EvF1+iMJClNVxtJcaF13dieoNklnT1Z+rl/+Dj11+b +mUylKrRyqQpCj1JSNQNTI1X+7o4aSfxBP7n4cFUzHywLrxvlnDSs8IyhsVi07yzptiJ64B3rSUWl dM7Q40iMPfaCuYBHKNTzu1W74oeJvO++FfzO220aK4BEiVAtoGwPaJ85pVjHKi0Chhu059YE2h8Wo 47urZLOLZTnYKP/uhAIA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1mUUpo-000gbK-Ng; Sun, 26 Sep 2021 14:08:52 +0000 Received: from mail.kernel.org ([198.145.29.99]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1mUUpl-000gav-7r for linux-arm-kernel@lists.infradead.org; Sun, 26 Sep 2021 14:08:51 +0000 Received: from jic23-huawei (cpc108967-cmbg20-2-0-cust86.5-4.cable.virginm.net [81.101.6.87]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id BCC6460724; Sun, 26 Sep 2021 14:08:45 +0000 (UTC) Date: Sun, 26 Sep 2021 15:12:34 +0100 From: Jonathan Cameron To: Cai Huoqing Cc: Lars-Peter Clausen , Rob Herring , Shawn Guo , "Sascha Hauer" , Pengutronix Kernel Team , Fabio Estevam , NXP Linux Team , , , , Subject: Re: [PATCH v6 1/3] iio: imx8qxp-adc: Add driver support for NXP IMX8QXP ADC Message-ID: <20210926151234.2b7b728b@jic23-huawei> In-Reply-To: <20210925020555.129-2-caihuoqing@baidu.com> References: <20210925020555.129-1-caihuoqing@baidu.com> <20210925020555.129-2-caihuoqing@baidu.com> X-Mailer: Claws Mail 4.0.0 (GTK+ 3.24.30; x86_64-pc-linux-gnu) MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210926_070849_356558_CACBD727 X-CRM114-Status: GOOD ( 14.18 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Sat, 25 Sep 2021 10:05:45 +0800 Cai Huoqing wrote: > The NXP i.MX 8QuadXPlus SOC has a new ADC IP, so add > driver support for this ADC. > > Signed-off-by: Cai Huoqing Hi. My local build tests throw up a "set but unused" warning which made me take another look. I've fixed as commented below. Shout if that was not the right fix! > + > +static void imx8qxp_adc_reg_config(struct imx8qxp_adc *adc, int channel) > +{ > + u32 adc_cfg, adc_tctrl, adc_cmdl, adc_cmdh; > + > + /* ADC configuration */ > + adc_cfg = FIELD_PREP(IMX8QXP_ADC_CFG_PWREN_MASK, 1) | > + FIELD_PREP(IMX8QXP_ADC_CFG_PUDLY_MASK, 0x80)| > + FIELD_PREP(IMX8QXP_ADC_CFG_REFSEL_MASK, 0) | > + FIELD_PREP(IMX8QXP_ADC_CFG_PWRSEL_MASK, 3) | > + FIELD_PREP(IMX8QXP_ADC_CFG_TPRICTRL_MASK, 0); > + writel(adc_cfg, adc->regs + IMX8QXP_ADR_ADC_CFG); > + > + /* config the trigger control */ > + adc_tctrl = FIELD_PREP(IMX8QXP_ADC_TCTRL_TCMD_MASK, 1) | > + FIELD_PREP(IMX8QXP_ADC_TCTRL_TDLY_MASK, 0) | > + FIELD_PREP(IMX8QXP_ADC_TCTRL_TPRI_MASK, IMX8QXP_ADC_TCTRL_TPRI_PRIORITY_HIGH) | > + FIELD_PREP(IMX8QXP_ADC_TCTRL_HTEN_MASK, IMX8QXP_ADC_TCTRL_HTEN_HW_TIRG_DIS); > + writel(adc_cfg, adc->regs + IMX8QXP_ADR_ADC_TCTRL(0)); adc_tctrl I assume? I've changed it to that so shout if that was not what was intented. > + > + /* config the cmd */ > + adc_cmdl = FIELD_PREP(IMX8QXP_ADC_CMDL_CSCALE_MASK, IMX8QXP_ADC_CMDL_CHANNEL_SCALE_FULL) | > + FIELD_PREP(IMX8QXP_ADC_CMDL_MODE_MASK, IMX8QXP_ADC_CMDL_STANDARD_RESOLUTION) | > + FIELD_PREP(IMX8QXP_ADC_CMDL_DIFF_MASK, IMX8QXP_ADC_CMDL_MODE_SINGLE) | > + FIELD_PREP(IMX8QXP_ADC_CMDL_ABSEL_MASK, IMX8QXP_ADC_CMDL_SEL_A_A_B_CHANNEL) | > + FIELD_PREP(IMX8QXP_ADC_CMDL_ADCH_MASK, channel); > + writel(adc_cmdl, adc->regs + IMX8QXP_ADR_ADC_CMDL(0)); > + > + adc_cmdh = FIELD_PREP(IMX8QXP_ADC_CMDH_NEXT_MASK, 0) | > + FIELD_PREP(IMX8QXP_ADC_CMDH_LOOP_MASK, 0) | > + FIELD_PREP(IMX8QXP_ADC_CMDH_AVGS_MASK, 7) | > + FIELD_PREP(IMX8QXP_ADC_CMDH_STS_MASK, 0) | > + FIELD_PREP(IMX8QXP_ADC_CMDH_LWI_MASK, IMX8QXP_ADC_CMDH_LWI_INCREMENT_DIS) | > + FIELD_PREP(IMX8QXP_ADC_CMDH_CMPEN_MASK, IMX8QXP_ADC_CMDH_CMPEN_DIS); > + writel(adc_cmdh, adc->regs + IMX8QXP_ADR_ADC_CMDH(0)); > +} > + _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel