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=-12.0 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, MENTIONS_GIT_HOSTING,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED 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 40B4CC0650E for ; Mon, 1 Jul 2019 09:02:11 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 0F228208E4 for ; Mon, 1 Jul 2019 09:02:10 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1561971731; bh=6NTdJ10c2XbenmGqAJoRMKr0iha2JG7ymgBHgQ29lkw=; h=Subject:To:From:Date:List-ID:From; b=pnpKUl5pGAnVQ7Ms3tJRLFnQ10sEy9KMwsvmmR5Qjqg6QKZtOAl3Dp5vzoV+I/aUK Jl+HdSaue44JdOdf9sKiX3rhih4GLjANFEaZO8vTAkdCVlsynZy9YFdcoJqumOOQ6Y 8+z0u8j5OjaBkYXA3PkVmon51pCjVvt9gNnGZTZ8= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728233AbfGAJCK (ORCPT ); Mon, 1 Jul 2019 05:02:10 -0400 Received: from mail.kernel.org ([198.145.29.99]:43346 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728196AbfGAJCK (ORCPT ); Mon, 1 Jul 2019 05:02:10 -0400 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (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 5C901217D9; Mon, 1 Jul 2019 09:02:08 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1561971728; bh=6NTdJ10c2XbenmGqAJoRMKr0iha2JG7ymgBHgQ29lkw=; h=Subject:To:From:Date:From; b=fBCtgmNRCRskq6DrNdIQah19gUw0diSICCbwtgpqb1BPZlPswX/Q+HwF/DhjVd3G5 4XFQWeFFAa2wbwHdbJ+zYEgl/Lq1FUGBF41DbzAV/Colbyz75HJ1PXGREL+4RjQu0q BcHOb7HuYEbTS8yPjf567D+JvzK0XRwwfJpQI/T0= Subject: patch "iio: adc: stm32-adc: add missing vdda-supply" added to staging-testing To: fabrice.gasnier@st.com, Jonathan.Cameron@huawei.com, Stable@vger.kernel.org From: Date: Mon, 01 Jul 2019 10:59:57 +0200 Message-ID: <1561971597188147@kroah.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ANSI_X3.4-1968 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org This is a note to let you know that I've just added the patch titled iio: adc: stm32-adc: add missing vdda-supply to my staging git tree which can be found at git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging.git in the staging-testing branch. The patch will show up in the next release of the linux-next tree (usually sometime within the next 24 hours during the week.) The patch will be merged to the staging-next branch sometime soon, after it passes testing, and the merge window is open. If you have any questions about this process, please let me know. >From 7685010fca2ba0284f31fd1380df3cffc96d847e Mon Sep 17 00:00:00 2001 From: Fabrice Gasnier Date: Wed, 19 Jun 2019 14:29:55 +0200 Subject: iio: adc: stm32-adc: add missing vdda-supply Add missing vdda-supply, analog power supply, to STM32 ADC. When vdda is an independent supply, it needs to be properly turned on or off to supply the ADC. Signed-off-by: Fabrice Gasnier Fixes: 1add69880240 ("iio: adc: Add support for STM32 ADC core"). Cc: Signed-off-by: Jonathan Cameron --- drivers/iio/adc/stm32-adc-core.c | 21 ++++++++++++++++++++- 1 file changed, 20 insertions(+), 1 deletion(-) diff --git a/drivers/iio/adc/stm32-adc-core.c b/drivers/iio/adc/stm32-adc-core.c index 2327ec18b40c..1f7ce5186dfc 100644 --- a/drivers/iio/adc/stm32-adc-core.c +++ b/drivers/iio/adc/stm32-adc-core.c @@ -87,6 +87,7 @@ struct stm32_adc_priv_cfg { * @domain: irq domain reference * @aclk: clock reference for the analog circuitry * @bclk: bus clock common for all ADCs, depends on part used + * @vdda: vdda analog supply reference * @vref: regulator reference * @cfg: compatible configuration data * @common: common data for all ADC instances @@ -97,6 +98,7 @@ struct stm32_adc_priv { struct irq_domain *domain; struct clk *aclk; struct clk *bclk; + struct regulator *vdda; struct regulator *vref; const struct stm32_adc_priv_cfg *cfg; struct stm32_adc_common common; @@ -394,10 +396,16 @@ static int stm32_adc_core_hw_start(struct device *dev) struct stm32_adc_priv *priv = to_stm32_adc_priv(common); int ret; + ret = regulator_enable(priv->vdda); + if (ret < 0) { + dev_err(dev, "vdda enable failed %d\n", ret); + return ret; + } + ret = regulator_enable(priv->vref); if (ret < 0) { dev_err(dev, "vref enable failed\n"); - return ret; + goto err_vdda_disable; } if (priv->bclk) { @@ -425,6 +433,8 @@ static int stm32_adc_core_hw_start(struct device *dev) clk_disable_unprepare(priv->bclk); err_regulator_disable: regulator_disable(priv->vref); +err_vdda_disable: + regulator_disable(priv->vdda); return ret; } @@ -441,6 +451,7 @@ static void stm32_adc_core_hw_stop(struct device *dev) if (priv->bclk) clk_disable_unprepare(priv->bclk); regulator_disable(priv->vref); + regulator_disable(priv->vdda); } static int stm32_adc_probe(struct platform_device *pdev) @@ -468,6 +479,14 @@ static int stm32_adc_probe(struct platform_device *pdev) return PTR_ERR(priv->common.base); priv->common.phys_base = res->start; + priv->vdda = devm_regulator_get(&pdev->dev, "vdda"); + if (IS_ERR(priv->vdda)) { + ret = PTR_ERR(priv->vdda); + if (ret != -EPROBE_DEFER) + dev_err(&pdev->dev, "vdda get failed, %d\n", ret); + return ret; + } + priv->vref = devm_regulator_get(&pdev->dev, "vref"); if (IS_ERR(priv->vref)) { ret = PTR_ERR(priv->vref); -- 2.22.0