From patchwork Wed Jun 12 07:43:02 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: 13694571 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 A9C76C27C53 for ; Wed, 12 Jun 2024 07:43:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:Cc:To:From: Reply-To:Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=7rgvK6tvAwEac4inpFacUSnKukUEOa7RqQhbKlC0FOA=; b=ShY9HwwcnwRW1x10wrc7pEXEF9 0UlmTKCSWQqcev22lJnKCwHtKYy7kAHWzfYWLuBL1z++bZMPjiFrgP7a0eyGpn+WXN8r3mL6rhmbL OmVGM7Zu/F42xztbQidAKKhykl9zZYBf6T939y1uq1CSlUSX+W5gBNzV/wvQwNMIyn2kHgTtBIWl0 aJfy6ODsaHwD0SFneK4N2eTT3O3HwbO9TFWO1HKa/qLpSJk0rKUqzcAhttHSaV1Gv5VNaQLrlRLPv p2Ag45e4oxI3shAojnNB772ablhr3kr26A37irvhUCpWoequ6JLtrnxJlsTgZ8DGZGOAq7iFBNPLe TStKJW3A==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1sHIdm-0000000BU3m-3lGB; Wed, 12 Jun 2024 07:43:30 +0000 Received: from madrid.collaboradmins.com ([2a00:1098:ed:100::25]) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1sHIdg-0000000BU0o-3W3W; Wed, 12 Jun 2024 07:43:26 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1718178203; bh=2rsptygWifRO/c0OTQta4XS0LqTtMDZVNSsQpMH8z8A=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=2D5ReFgCJ0rNdPab1qhWShJZEjGyFXubQVbypSqm26hV10K6fOnoNldYMD6Ir5B4l dhCMjArm9ltXzjdeHpguPw2v2UyAy76xgyegFOSHz/rdRkH8suCc5jghYAHa8w1ao6 ESRPhlV+Zt5W+60sq1HDzpbHxXor5LAsKO7NdV4F5zvlFqUvGdZ4VfqAqHi2aH8W6Y cbjJKL3Ft2B5QnPEaNz38u0AdIr6vNnW/0/sgY4+wg+aT9mbcPIWDWwJPsYg1+adMa LorIwLHrd+g4dbAxr+Kf6b35R4UPipa2nxO8g63zgDEsBdQjihbFcLpgOprtotdaao OF7sbDCP+beAQ== 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 4E45437820A9; Wed, 12 Jun 2024 07:43:22 +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, jejb@linux.ibm.com, martin.petersen@oracle.com, lgirdwood@gmail.com, broonie@kernel.org, matthias.bgg@gmail.com, angelogioacchino.delregno@collabora.com, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mediatek@lists.infradead.org, linux-arm-kernel@lists.infradead.org, wenst@chromium.org, michael@walle.cc Subject: [PATCH v5 1/8] scsi: ufs: ufs-mediatek: Remove useless mediatek,ufs-support-va09 property Date: Wed, 12 Jun 2024 09:43:02 +0200 Message-ID: <20240612074309.50278-2-angelogioacchino.delregno@collabora.com> X-Mailer: git-send-email 2.45.2 In-Reply-To: <20240612074309.50278-1-angelogioacchino.delregno@collabora.com> References: <20240612074309.50278-1-angelogioacchino.delregno@collabora.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240612_004325_155132_D751A538 X-CRM114-Status: GOOD ( 16.57 ) 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 c7a0ab9b1f59..47c7d34b9be9 100644 --- a/drivers/ufs/host/ufs-mediatek.c +++ b/drivers/ufs/host/ufs-mediatek.c @@ -623,27 +623,38 @@ 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; @@ -664,6 +675,7 @@ 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) @@ -986,7 +998,9 @@ 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);