From patchwork Wed Apr 29 06:05:25 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: =?utf-8?b?Q2h1bmZlbmcgWXVuICjkupHmmKXls7Ap?= X-Patchwork-Id: 1278987 X-Patchwork-Delegate: marek.vasut@gmail.com Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=lists.denx.de (client-ip=85.214.62.61; helo=phobos.denx.de; envelope-from=u-boot-bounces@lists.denx.de; receiver=) Authentication-Results: ozlabs.org; dmarc=pass (p=none dis=none) header.from=mediatek.com Authentication-Results: ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=mediatek.com header.i=@mediatek.com header.a=rsa-sha256 header.s=dk header.b=M8hbAu3U; dkim-atps=neutral Received: from phobos.denx.de (phobos.denx.de [85.214.62.61]) (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) by ozlabs.org (Postfix) with ESMTPS id 49BpF23vTXz9sSq for ; Wed, 29 Apr 2020 16:16:38 +1000 (AEST) Received: from h2850616.stratoserver.net (localhost [IPv6:::1]) by phobos.denx.de (Postfix) with ESMTP id E2E6782099; Wed, 29 Apr 2020 08:16:34 +0200 (CEST) Authentication-Results: phobos.denx.de; dmarc=pass (p=none dis=none) header.from=mediatek.com Authentication-Results: phobos.denx.de; spf=pass smtp.mailfrom=u-boot-bounces@lists.denx.de Authentication-Results: phobos.denx.de; dkim=pass (1024-bit key; unprotected) header.d=mediatek.com header.i=@mediatek.com header.b="M8hbAu3U"; dkim-atps=neutral Received: by phobos.denx.de (Postfix, from userid 109) id 18E34820A2; Wed, 29 Apr 2020 08:16:27 +0200 (CEST) X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on phobos.denx.de X-Spam-Level: X-Spam-Status: No, score=0.5 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MIME_BASE64_TEXT,RDNS_NONE,SPF_HELO_NONE, UNPARSEABLE_RELAY,URIBL_BLOCKED autolearn=no autolearn_force=no version=3.4.2 Received: from mailgw02.mediatek.com (unknown [210.61.82.184]) by phobos.denx.de (Postfix) with ESMTP id 7BFD282097 for ; Wed, 29 Apr 2020 08:16:22 +0200 (CEST) Authentication-Results: phobos.denx.de; dmarc=pass (p=none dis=none) header.from=mediatek.com Authentication-Results: phobos.denx.de; spf=pass smtp.mailfrom=chunfeng.yun@mediatek.com X-UUID: 52bf0f428e7742bbab49a72e6c6250bc-20200429 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=mediatek.com; s=dk; h=Content-Transfer-Encoding:Content-Type:MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:CC:To:From; bh=DPtrO1p32aAi5aCodqN2VMUamecNBSYBbK3yWoFxKgQ=; b=M8hbAu3Ut7xBU2oIQlqgHuUGh7eszbJiQuZgODgp007OKT6LbzpcSuUEHBvr9Z2JZGFPCLGgYeTdaK5e+d5Zo4iJsPmSUaHGnxGZbJsDnGhdGmyZFoC9Mqj0svhNCjcE/8imBjk7nOMlzrmJclvKTTMdvUz7Aq7UFv61ZGL5l/4=; X-UUID: 52bf0f428e7742bbab49a72e6c6250bc-20200429 Received: from mtkexhb02.mediatek.inc [(172.21.101.103)] by mailgw02.mediatek.com (envelope-from ) (Cellopoint E-mail Firewall v4.1.10 Build 0809 with TLS) with ESMTP id 826167069; Wed, 29 Apr 2020 14:07:34 +0800 Received: from MTKCAS06.mediatek.inc (172.21.101.30) by mtkmbs05n1.mediatek.inc (172.21.101.15) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Wed, 29 Apr 2020 14:07:31 +0800 Received: from localhost.localdomain (10.17.3.153) by MTKCAS06.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Wed, 29 Apr 2020 14:07:30 +0800 From: Chunfeng Yun To: Simon Glass , Ryder Lee , Marek Vasut , Bin Meng CC: Weijie Gao , GSS_MTK_Uboot_upstream , Jagan Teki , Stefan Roese , Neil Armstrong , Sam Shih , Chunfeng Yun , Frank Wunderlich , Jean-Jacques Hiblot , Alex Marginean , Patrick Delaunay , Lukasz Majewski , AKASHI Takahiro , Anatolij Gustschin , Ye Li , Fabio Estevam , Marcel Ziswiler , Heiko Schocher , Mark Kettenis , Adam Ford , , Masahiro Yamada , Vignesh Raghavendra Subject: [PATCH v7 09/14] phy: phy-mtk-tphy: add a new reference clock Date: Wed, 29 Apr 2020 14:05:25 +0800 Message-ID: <1588140330-9910-10-git-send-email-chunfeng.yun@mediatek.com> X-Mailer: git-send-email 1.8.1.1.dirty In-Reply-To: <1588140330-9910-1-git-send-email-chunfeng.yun@mediatek.com> References: <1588140330-9910-1-git-send-email-chunfeng.yun@mediatek.com> MIME-Version: 1.0 X-MTK: N X-BeenThere: u-boot@lists.denx.de X-Mailman-Version: 2.1.30rc1 Precedence: list List-Id: U-Boot discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: u-boot-bounces@lists.denx.de Sender: "U-Boot" X-Virus-Scanned: clamav-milter 0.102.2 at phobos.denx.de X-Virus-Status: Clean Usually the digital and analog phys use the same reference clock, but some platforms have two separate reference clocks for each of them, so add another optional clock to support them. In order to keep the clock names consistent with PHY IP's, change the da_ref for analog phy and ref clock for digital phy. Signed-off-by: Chunfeng Yun Reviewed-by: Weijie Gao --- v7: no changes v6: add Reviewed-by Weijie v2~v5: no changes --- drivers/phy/phy-mtk-tphy.c | 21 ++++++++++++++++++--- 1 file changed, 18 insertions(+), 3 deletions(-) diff --git a/drivers/phy/phy-mtk-tphy.c b/drivers/phy/phy-mtk-tphy.c index 20167fe7cb..81525a48b7 100644 --- a/drivers/phy/phy-mtk-tphy.c +++ b/drivers/phy/phy-mtk-tphy.c @@ -199,8 +199,8 @@ struct mtk_phy_instance { struct u3phy_banks u3_banks; }; - /* reference clock of anolog phy */ - struct clk ref_clk; + struct clk ref_clk; /* reference clock of (digital) phy */ + struct clk da_ref_clk; /* reference clock of analog phy */ u32 index; u32 type; }; @@ -450,8 +450,17 @@ static int mtk_phy_init(struct phy *phy) int ret; ret = clk_enable(&instance->ref_clk); - if (ret) + if (ret < 0) { + dev_err(tphy->dev, "failed to enable ref_clk\n"); return ret; + } + + ret = clk_enable(&instance->da_ref_clk); + if (ret < 0) { + dev_err(tphy->dev, "failed to enable da_ref_clk %d\n", ret); + clk_disable(&instance->ref_clk); + return ret; + } switch (instance->type) { case PHY_TYPE_USB2: @@ -502,6 +511,7 @@ static int mtk_phy_exit(struct phy *phy) struct mtk_tphy *tphy = dev_get_priv(phy->dev); struct mtk_phy_instance *instance = tphy->phys[phy->id]; + clk_disable(&instance->da_ref_clk); clk_disable(&instance->ref_clk); return 0; @@ -611,6 +621,11 @@ static int mtk_tphy_probe(struct udevice *dev) &instance->ref_clk); if (err) return err; + + err = clk_get_optional_nodev(subnode, "da_ref", + &instance->da_ref_clk); + if (err) + return err; } return 0;