From patchwork Thu Apr 11 11:42:53 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: AngeloGioacchino Del Regno X-Patchwork-Id: 13625798 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 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 smtp.lore.kernel.org (Postfix) with ESMTPS id EDFA0CD1284 for ; Thu, 11 Apr 2024 11:43:50 +0000 (UTC) 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:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=FtfuUxjovZtxa/OMnFY4fY+ePKj0oAZILtR/NhGsOjk=; b=fw5kOYj80yPmot F/su+u5s8+ZxHYpQ2AVOdzY/IjfxFVCJUeVfopbKhJ/jw2eZSHrcp5oJ4pqc+6uIB13GH6nAYjVEp JVa/btRAlRbpKWUb5rU3kZ1WfLBIkPXnMUS0iTomN3LwS2gsIokEfnbEjo+qxZIOc1IN0PYviOQtG 8YIsZwMRLgGevk1fdcJEN3Ih4z8CtmBBd1dOrxiD+hT1FnX1JXSUsh5/yjdWpltbgyW5udn8tnQ7D 1Mz/RjMhw6mJY4QtoPk+LkxrrkqAmg4yTFMqGWqMvOhoX+dTXf1SBJNYAv+GlSimutIXzVpAIjcm4 FrdHD1nLuDa3muZFP5GA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1rusq5-0000000Bm8O-3d0C; Thu, 11 Apr 2024 11:43:33 +0000 Received: from madrid.collaboradmins.com ([46.235.227.194]) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1ruspg-0000000Blxn-0PX7; Thu, 11 Apr 2024 11:43:09 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1712835786; bh=GYrCUPwSvlfdLE3J9cAWMICwrZAfevrC39qq1M3MwBM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=s1EdeL4B5cOSHif/ZFFdTpG9TouVl498pjChgSA0FUVlM2B3gN0TMHvZ4wrQEu91o zLPVI5dibN2mRzaR5RQyl7IstTiTcwsOkmmhawK3fFlsmw/NRsosn3n40Gi7J64soA AMtVorjiFPd2gL6fqrAMgsxakW+/+V+Cbtq3xpENBn083MlJ+aIHtaRawZzUT8gtPI WMXAEhc10dwe9wh+bFIQ3yXMaAemh9yY8FCwlyjIdYQ4eKNI+A+mmG3t19Ktap6Ue7 0weB6tQW3bWIzEnVVbGkslSqqUIlTHhrWzmLduYeCw0tZsyBkHt5glMeb73nSdycr4 gafZx8zrVHIMg== Received: from IcarusMOD.eternityproject.eu (cola.collaboradmins.com [195.201.22.229]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) (Authenticated sender: kholk11) by madrid.collaboradmins.com (Postfix) with ESMTPSA id A169237820A1; Thu, 11 Apr 2024 11:43:05 +0000 (UTC) From: AngeloGioacchino Del Regno To: linux-scsi@vger.kernel.org Cc: alim.akhtar@samsung.com, avri.altman@wdc.com, bvanassche@acm.org, robh@kernel.org, krzysztof.kozlowski+dt@linaro.org, conor+dt@kernel.org, peter.wang@mediatek.com, chu.stanley@gmail.com, jejb@linux.ibm.com, martin.petersen@oracle.com, lgirdwood@gmail.com, broonie@kernel.org, matthias.bgg@gmail.com, angelogioacchino.delregno@collabora.com, stanley.chu@mediatek.com, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mediatek@lists.infradead.org, linux-arm-kernel@lists.infradead.org Subject: [PATCH v2 1/8] scsi: ufs: ufs-mediatek: Remove useless mediatek,ufs-support-va09 property Date: Thu, 11 Apr 2024 13:42:53 +0200 Message-ID: <20240411114300.169055-2-angelogioacchino.delregno@collabora.com> X-Mailer: git-send-email 2.44.0 In-Reply-To: <20240411114300.169055-1-angelogioacchino.delregno@collabora.com> References: <20240411114300.169055-1-angelogioacchino.delregno@collabora.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240411_044308_290303_200095AB X-CRM114-Status: GOOD ( 16.91 ) 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: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Remove checking the mediatek,ufs-support-va09 property to decide whether to try to support the VA09 regulator handling and change the ufs_mtk_init_va09_pwr_ctrl() function to make it call devm_regulator_get_optional(): if the regulator is present, then we set the UFS_MTK_CAP_VA09_PWR_CTRL, effectively enabling the handling of the VA09 regulator based on that. Also, make sure to pass the return value of the call to devm_regulator_get_optional() to the probe function, so that if it returns a probe deferral, the appropriate action will be taken. While at it, remove the error print (disguised as info...) when the va09 regulator was not found. Fixes: ac8c2459091c ("scsi: ufs-mediatek: Decouple features from platform bindings") Signed-off-by: AngeloGioacchino Del Regno --- drivers/ufs/host/ufs-mediatek.c | 34 +++++++++++++++++++++++---------- 1 file changed, 24 insertions(+), 10 deletions(-) diff --git a/drivers/ufs/host/ufs-mediatek.c b/drivers/ufs/host/ufs-mediatek.c index 0b0c923b1d7b..e4643ac49033 100644 --- a/drivers/ufs/host/ufs-mediatek.c +++ b/drivers/ufs/host/ufs-mediatek.c @@ -622,27 +622,38 @@ static void ufs_mtk_init_boost_crypt(struct ufs_hba *hba) return; } -static void ufs_mtk_init_va09_pwr_ctrl(struct ufs_hba *hba) +static int ufs_mtk_init_va09_pwr_ctrl(struct ufs_hba *hba) { struct ufs_mtk_host *host = ufshcd_get_variant(hba); + int ret; - host->reg_va09 = regulator_get(hba->dev, "va09"); - if (IS_ERR(host->reg_va09)) - dev_info(hba->dev, "failed to get va09"); - else - host->caps |= UFS_MTK_CAP_VA09_PWR_CTRL; + host->reg_va09 = devm_regulator_get_optional(hba->dev, "va09"); + if (IS_ERR(host->reg_va09)) { + ret = PTR_ERR(host->reg_va09); + + /* Return an error only if this is a deferral */ + if (ret == -EPROBE_DEFER) + return ret; + + return 0; + } + + host->caps |= UFS_MTK_CAP_VA09_PWR_CTRL; + return 0; } -static void ufs_mtk_init_host_caps(struct ufs_hba *hba) +static int ufs_mtk_init_host_caps(struct ufs_hba *hba) { struct ufs_mtk_host *host = ufshcd_get_variant(hba); struct device_node *np = hba->dev->of_node; + int ret; if (of_property_read_bool(np, "mediatek,ufs-boost-crypt")) ufs_mtk_init_boost_crypt(hba); - if (of_property_read_bool(np, "mediatek,ufs-support-va09")) - ufs_mtk_init_va09_pwr_ctrl(hba); + ret = ufs_mtk_init_va09_pwr_ctrl(hba); + if (ret) + return ret; if (of_property_read_bool(np, "mediatek,ufs-disable-ah8")) host->caps |= UFS_MTK_CAP_DISABLE_AH8; @@ -663,6 +674,7 @@ static void ufs_mtk_init_host_caps(struct ufs_hba *hba) host->caps |= UFS_MTK_CAP_RTFF_MTCMOS; dev_info(hba->dev, "caps: 0x%x", host->caps); + return 0; } static void ufs_mtk_scale_perf(struct ufs_hba *hba, bool scale_up) @@ -985,7 +997,9 @@ static int ufs_mtk_init(struct ufs_hba *hba) } /* Initialize host capability */ - ufs_mtk_init_host_caps(hba); + err = ufs_mtk_init_host_caps(hba); + if (err) + goto out; ufs_mtk_init_mcq_irq(hba);