From patchwork Tue Dec 22 07:05:07 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kishon Vijay Abraham I X-Patchwork-Id: 346953 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=-18.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, USER_AGENT_GIT autolearn=unavailable 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 BAC9CC433E6 for ; Tue, 22 Dec 2020 07:08:05 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 833BA23120 for ; Tue, 22 Dec 2020 07:08:05 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726412AbgLVHHS (ORCPT ); Tue, 22 Dec 2020 02:07:18 -0500 Received: from fllv0015.ext.ti.com ([198.47.19.141]:53844 "EHLO fllv0015.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726396AbgLVHHR (ORCPT ); Tue, 22 Dec 2020 02:07:17 -0500 Received: from lelv0265.itg.ti.com ([10.180.67.224]) by fllv0015.ext.ti.com (8.15.2/8.15.2) with ESMTP id 0BM75UJO064018; Tue, 22 Dec 2020 01:05:30 -0600 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1608620730; bh=HHTvmMjtTJRPNFpN3zkcx0PIiGXY1RMP1eK0a1ouBO4=; h=From:To:CC:Subject:Date:In-Reply-To:References; b=aGAEk04v60w1DV9ToCDUcSTdb5TacFqifX2ky8qkVMtFrePrgzSzDVvnqAZm6sMrz RTq8jDtEle+Yg3A/g0f3+forpgz33cttvCa9F9l3gX1phah2abQxvEaQwjsAbbVkCQ d4y8rxDY4JQ2hlU+px4YBPd9xpzlG+pMr/a3pDos= Received: from DLEE103.ent.ti.com (dlee103.ent.ti.com [157.170.170.33]) by lelv0265.itg.ti.com (8.15.2/8.15.2) with ESMTPS id 0BM75UFo014639 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Tue, 22 Dec 2020 01:05:30 -0600 Received: from DLEE114.ent.ti.com (157.170.170.25) by DLEE103.ent.ti.com (157.170.170.33) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1979.3; Tue, 22 Dec 2020 01:05:30 -0600 Received: from fllv0039.itg.ti.com (10.64.41.19) by DLEE114.ent.ti.com (157.170.170.25) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1979.3 via Frontend Transport; Tue, 22 Dec 2020 01:05:30 -0600 Received: from a0393678-ssd.dal.design.ti.com (ileax41-snat.itg.ti.com [10.172.224.153]) by fllv0039.itg.ti.com (8.15.2/8.15.2) with ESMTP id 0BM75N7A050344; Tue, 22 Dec 2020 01:05:27 -0600 From: Kishon Vijay Abraham I To: Kishon Vijay Abraham I , Vinod Koul , Rob Herring , Swapnil Jakhade , , , CC: Nishanth Menon , Philipp Zabel , Subject: [PATCH v2 01/14] phy: cadence: Sierra: Fix PHY power_on sequence Date: Tue, 22 Dec 2020 12:35:07 +0530 Message-ID: <20201222070520.28132-2-kishon@ti.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20201222070520.28132-1-kishon@ti.com> References: <20201222070520.28132-1-kishon@ti.com> MIME-Version: 1.0 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org Commit 44d30d622821d ("phy: cadence: Add driver for Sierra PHY") de-asserts PHY_RESET even before the configurations are loaded in phy_init(). However PHY_RESET should be de-asserted only after all the configurations has been initialized, instead of de-asserting in probe. Fix it here. Fixes: 44d30d622821d ("phy: cadence: Add driver for Sierra PHY") Signed-off-by: Kishon Vijay Abraham I Cc: # v5.4+ --- drivers/phy/cadence/phy-cadence-sierra.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/drivers/phy/cadence/phy-cadence-sierra.c b/drivers/phy/cadence/phy-cadence-sierra.c index 26a0badabe38..19f32ae877b9 100644 --- a/drivers/phy/cadence/phy-cadence-sierra.c +++ b/drivers/phy/cadence/phy-cadence-sierra.c @@ -319,6 +319,12 @@ static int cdns_sierra_phy_on(struct phy *gphy) u32 val; int ret; + ret = reset_control_deassert(sp->phy_rst); + if (ret) { + dev_err(dev, "Failed to take the PHY out of reset\n"); + return ret; + } + /* Take the PHY lane group out of reset */ ret = reset_control_deassert(ins->lnk_rst); if (ret) { @@ -616,7 +622,6 @@ static int cdns_sierra_phy_probe(struct platform_device *pdev) pm_runtime_enable(dev); phy_provider = devm_of_phy_provider_register(dev, of_phy_simple_xlate); - reset_control_deassert(sp->phy_rst); return PTR_ERR_OR_ZERO(phy_provider); put_child: