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=-9.9 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,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 B0467C2D0D0 for ; Mon, 16 Dec 2019 09:56:56 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 87F7C20725 for ; Mon, 16 Dec 2019 09:56:56 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=ti.com header.i=@ti.com header.b="XrD5/KYc" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727395AbfLPJ4m (ORCPT ); Mon, 16 Dec 2019 04:56:42 -0500 Received: from lelv0143.ext.ti.com ([198.47.23.248]:58834 "EHLO lelv0143.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727333AbfLPJ4l (ORCPT ); Mon, 16 Dec 2019 04:56:41 -0500 Received: from fllv0035.itg.ti.com ([10.64.41.0]) by lelv0143.ext.ti.com (8.15.2/8.15.2) with ESMTP id xBG9uSwc106137; Mon, 16 Dec 2019 03:56:28 -0600 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1576490188; bh=hOJHDmL6AFhdHJjk4PXU1SdyLIBqNQCFUPS9hn289rg=; h=From:To:CC:Subject:Date:In-Reply-To:References; b=XrD5/KYc7fdQd9L1OvUsxoi7uX5JF+Zq0yu2PBvXqL19r9I54e5FWU3LPCcqWVfOB 3nji6WHd8N6detzrLV4YI+udsXsowZMbFmUEMco6FZFtSuQak1UTGSkshWhSg8dDK3 kJG8+Y0UlX6u+JlyvQpqBUt4iHJxMENJRKy9iEKE= Received: from DLEE113.ent.ti.com (dlee113.ent.ti.com [157.170.170.24]) by fllv0035.itg.ti.com (8.15.2/8.15.2) with ESMTP id xBG9uS4W038405; Mon, 16 Dec 2019 03:56:28 -0600 Received: from DLEE106.ent.ti.com (157.170.170.36) by DLEE113.ent.ti.com (157.170.170.24) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1847.3; Mon, 16 Dec 2019 03:56:28 -0600 Received: from lelv0326.itg.ti.com (10.180.67.84) by DLEE106.ent.ti.com (157.170.170.36) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1847.3 via Frontend Transport; Mon, 16 Dec 2019 03:56:28 -0600 Received: from a0393678ub.india.ti.com (ileax41-snat.itg.ti.com [10.172.224.153]) by lelv0326.itg.ti.com (8.15.2/8.15.2) with ESMTP id xBG9tsJU084408; Mon, 16 Dec 2019 03:56:25 -0600 From: Kishon Vijay Abraham I To: Rob Herring , Anil Varughese , Roger Quadros , Jyri Sarha CC: , Kishon Vijay Abraham I , , Subject: [PATCH v4 11/14] phy: cadence: Sierra: Set cmn_refclk_dig_div/cmn_refclk1_dig_div frequency to 25MHz Date: Mon, 16 Dec 2019 15:27:09 +0530 Message-ID: <20191216095712.13266-12-kishon@ti.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20191216095712.13266-1-kishon@ti.com> References: <20191216095712.13266-1-kishon@ti.com> MIME-Version: 1.0 Content-Type: text/plain X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Set cmn_refclk_dig_div/cmn_refclk1_dig_div frequency to 25MHz as specified in "Common Module Clock Configurations" of the Cadence Sierra 16FFC Multi-Protocol PHY PMA Specification. It is set to 25MHz since the only user of Cadence Sierra SERDES, TI J721E SoC provides input clock frequency of 100MHz. For other frequencies, cmn_refclk_dig_div/cmn_refclk1_dig_div should be configured based on the "Common Module Clock Configurations". Signed-off-by: Kishon Vijay Abraham I --- drivers/phy/cadence/phy-cadence-sierra.c | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) diff --git a/drivers/phy/cadence/phy-cadence-sierra.c b/drivers/phy/cadence/phy-cadence-sierra.c index 665a6dbc7816..82466d0e9b38 100644 --- a/drivers/phy/cadence/phy-cadence-sierra.c +++ b/drivers/phy/cadence/phy-cadence-sierra.c @@ -198,6 +198,8 @@ struct cdns_sierra_phy { struct regmap_field *phy_pll_cfg_1; struct regmap_field *pllctrl_lock[SIERRA_MAX_LANES]; struct clk *clk; + struct clk *cmn_refclk_dig_div; + struct clk *cmn_refclk1_dig_div; int nsubnodes; u32 num_lanes; bool autoconf; @@ -279,6 +281,8 @@ static int cdns_sierra_phy_init(struct phy *gphy) if (phy->autoconf) return 0; + clk_set_rate(phy->cmn_refclk_dig_div, 25000000); + clk_set_rate(phy->cmn_refclk1_dig_div, 25000000); if (ins->phy_type == PHY_TYPE_PCIE) { num_cmn_regs = phy->init_data->pcie_cmn_regs; num_ln_regs = phy->init_data->pcie_ln_regs; @@ -468,6 +472,7 @@ static int cdns_sierra_phy_probe(struct platform_device *pdev) struct resource *res; int i, ret, node = 0; void __iomem *base; + struct clk *clk; struct device_node *dn = dev->of_node, *child; if (of_get_child_count(dn) == 0) @@ -523,6 +528,22 @@ static int cdns_sierra_phy_probe(struct platform_device *pdev) return PTR_ERR(sp->apb_rst); } + clk = devm_clk_get_optional(dev, "cmn_refclk_dig_div"); + if (IS_ERR(clk)) { + dev_err(dev, "cmn_refclk_dig_div clock not found\n"); + ret = PTR_ERR(clk); + return ret; + } + sp->cmn_refclk_dig_div = clk; + + clk = devm_clk_get_optional(dev, "cmn_refclk1_dig_div"); + if (IS_ERR(clk)) { + dev_err(dev, "cmn_refclk1_dig_div clock not found\n"); + ret = PTR_ERR(clk); + return ret; + } + sp->cmn_refclk1_dig_div = clk; + ret = clk_prepare_enable(sp->clk); if (ret) return ret; -- 2.17.1