From patchwork Sat Aug 15 18:13:55 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Martin Blumenstingl X-Patchwork-Id: 11715595 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 B35E416B1 for ; Sat, 15 Aug 2020 18:14:44 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (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 859D523B6F for ; Sat, 15 Aug 2020 18:14:44 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="2vYjrNkv"; dkim=fail reason="signature verification failed" (2048-bit key) header.d=googlemail.com header.i=@googlemail.com header.b="Gdr6dMre" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 859D523B6F Authentication-Results: mail.kernel.org; dmarc=fail (p=quarantine dis=none) header.from=googlemail.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=merlin.20170209; h=Sender:Content-Transfer-Encoding: Content-Type:Cc:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:MIME-Version:Message-Id:Date:Subject:To:From: Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender :Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References:List-Owner; bh=xN3PnSwtoBit5WmbSzF+jwtK2Te7gcll/V2qjr7z3jo=; b=2vYjrNkvnz4UHq56DwmtJE4A1x FdNNnfSUm82SFHrtJSNLhyCEUZuH2dvqlATAsSmpNai0IYdAfEnfPoJadO/Kr4IIqzprtNqbRpmXI ZOSlP5GQpEA2+Js7Kg3QlPOSIy04tqHo0Ld9FWVgMeiqqPAjl25YQmfSLVoH/gid45vBfwK8fmp+p mEwmFvl8bY/gAlPHyUTeQA+Cl4FrLF7A1jj7KuNozJsV9mdhsC28WWQHJ8MPUSyWh3RwJ2JuyZRJQ HbPisc7DyYyWWEY7vwJeMPSPflhpQSqklhJrY6K/Fg75zIQ0Kwpq1KkgUl6+tRo12wN8Dwb7nbSYB A8Mj53xA==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1k70hC-00057I-Bl; Sat, 15 Aug 2020 18:14:22 +0000 Received: from mail-ed1-x544.google.com ([2a00:1450:4864:20::544]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1k70h9-00056k-M5; Sat, 15 Aug 2020 18:14:20 +0000 Received: by mail-ed1-x544.google.com with SMTP id bs17so9201330edb.1; Sat, 15 Aug 2020 11:14:18 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=googlemail.com; s=20161025; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=uINicZ+DHLLF2gMCG0S676L3/FxAXJzjhmV0ZOtqSWw=; b=Gdr6dMreL94m8umOuQw9Gnk6ALyI4bOz2J1jkX35OCYz3vZKzzenUPY7Ou4pt7B8ef YJsst3uPEBlvpkwDPyewbZgJgOjgiNwSsczgytdaT+7aoMkT41HAqp+y/SVjxqTuRE0K w2TcKieWe9IP4o56pK8MOrDoPjfJdTjQtaivDkmWUJGgNvm0ieiOkqHu6StyMDfph4qN xpF8wCfpRrbEf5ADtrMk6uvpQsPpO2jlcaUdvc4fRSxf2A3KkfZICjMcQYaL5SYfqSsq ZDtY2tMvamx8CHjoldemO2Qx+I3oPj8zYp0ulm/kGNiz+45hySJIQTTeji3rPUIAUdo/ r05A== 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=uINicZ+DHLLF2gMCG0S676L3/FxAXJzjhmV0ZOtqSWw=; b=O3D2I0Idhs3qfhRNmPVT1c16lhVnyjblVopoDdZBbUS1RAVS5Zrkz64jXOcd7JZE05 Nz5XDCT96iP5kNdu5wp4h9SEk6/NIfetXk37tiyjgBk4uBSoK3/WBp2bioKuIEW3r5B7 5wE4DJ4VQEfwT8MUOm8LiiRzVCHKOMxCh8zO6vODmGTp4NfG9Ou4YCfEdH8p3S+C4Zfq /snNPX66N2H56HOonzP6smw3OkJBOOb/V+7rMYlPPXxjxv4HAftBDaT3tytCTk3ujnIW IG4BA4v9oaobIwr/ltiJtfItvSyGw6iZvZi2TmZ/tCxnXHYQbIuKK2I1HC53X23UylhH USCQ== X-Gm-Message-State: AOAM533G99uECqsurTwhgSl9tya4SlxMEOOValdMklXsAXu6lvQH/P8I d1CFFuZpQPZTyqGkU8rfmYQ= X-Google-Smtp-Source: ABdhPJwUM4wX2FiiLD7s/Ocw/648bw8oWRk3tLISpQebRyQQAOcj3KJ3d7OnMxtmXJxUG4ZpOd+/8w== X-Received: by 2002:aa7:de13:: with SMTP id h19mr7587769edv.322.1597515257318; Sat, 15 Aug 2020 11:14:17 -0700 (PDT) Received: from localhost.localdomain (p200300f1371a97000000000000000fcc.dip0.t-ipconnect.de. [2003:f1:371a:9700::fcc]) by smtp.googlemail.com with ESMTPSA id u13sm10353549eje.9.2020.08.15.11.14.16 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 15 Aug 2020 11:14:16 -0700 (PDT) From: Martin Blumenstingl To: jic23@kernel.org, lars@metafoo.de, linux-iio@vger.kernel.org, linux-amlogic@lists.infradead.org Subject: [PATCH for-5.9] iio: adc: meson-saradc: Use the parent device to look up the calib data Date: Sat, 15 Aug 2020 20:13:55 +0200 Message-Id: <20200815181355.407034-1-martin.blumenstingl@googlemail.com> X-Mailer: git-send-email 2.28.0 MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200815_141420_048727_34B025B9 X-CRM114-Status: GOOD ( 16.50 ) X-Spam-Score: -0.2 (/) X-Spam-Report: SpamAssassin version 3.4.4 on merlin.infradead.org summary: Content analysis details: (-0.2 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at https://www.dnswl.org/, no trust [2a00:1450:4864:20:0:0:0:544 listed in] [list.dnswl.org] -0.0 SPF_PASS SPF: sender matches SPF record 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record 0.0 FREEMAIL_FROM Sender email is commonly abused enduser mail provider [martin.blumenstingl[at]googlemail.com] -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from envelope-from domain -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Martin Blumenstingl , linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, knaack.h@gmx.de Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org On the older-gen 32-bit SoCs the meson-saradc driver is used to read the SoC temperature. This requires reading calibration data from the eFuse. Looking up the calibration data nvmem-cell requires the OF device_node pointer to be available in the struct device which is passed to devm_nvmem_cell_get(). This however got lost with commit 8cb631ccbb1952 ("iio: Remove superfluous of_node assignments") from indio_dev->dev. As devm_nvmem_cell_get() is called in the initialization phase the device_node is not yet available because the NVMEM cell is looked up before iio_device_register() is called (which would then set the device_node automatically). Use the parent device to look up the NVMEM cell instead to fix this issue. Fixes: 8cb631ccbb1952 ("iio: Remove superfluous of_node assignments") Signed-off-by: Martin Blumenstingl --- drivers/iio/adc/meson_saradc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/iio/adc/meson_saradc.c b/drivers/iio/adc/meson_saradc.c index 93c2252c0b89..1a9189ba69ae 100644 --- a/drivers/iio/adc/meson_saradc.c +++ b/drivers/iio/adc/meson_saradc.c @@ -707,7 +707,7 @@ static int meson_sar_adc_temp_sensor_init(struct iio_dev *indio_dev) size_t read_len; int ret; - temperature_calib = devm_nvmem_cell_get(&indio_dev->dev, + temperature_calib = devm_nvmem_cell_get(indio_dev->dev.parent, "temperature_calib"); if (IS_ERR(temperature_calib)) { ret = PTR_ERR(temperature_calib);