From patchwork Mon Dec 14 09:16:12 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Serge Semin X-Patchwork-Id: 343868 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=-13.7 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED 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 EFB11C1B0E3 for ; Mon, 14 Dec 2020 09:26:58 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B5A2A22AB0 for ; Mon, 14 Dec 2020 09:26:58 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2439643AbgLNJXd (ORCPT ); Mon, 14 Dec 2020 04:23:33 -0500 Received: from ns2.baikalelectronics.com ([94.125.187.42]:46530 "EHLO mail.baikalelectronics.ru" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S2439736AbgLNJSQ (ORCPT ); Mon, 14 Dec 2020 04:18:16 -0500 From: Serge Semin To: Rob Herring , Giuseppe Cavallaro , Alexandre Torgue , Jose Abreu , "David S. Miller" , Jakub Kicinski , Johan Hovold , Maxime Ripard , Joao Pinto , Lars Persson , Shawn Guo , Sascha Hauer , Pengutronix Kernel Team , Fabio Estevam , NXP Linux Team , Maxime Coquelin CC: Serge Semin , Serge Semin , Alexey Malahov , Pavel Parkhomenko , Vyacheslav Mitrofanov , , , , , Subject: [PATCH 22/25] net: stmmac: dwmac-imx: Discard Tx clock request Date: Mon, 14 Dec 2020 12:16:12 +0300 Message-ID: <20201214091616.13545-23-Sergey.Semin@baikalelectronics.ru> In-Reply-To: <20201214091616.13545-1-Sergey.Semin@baikalelectronics.ru> References: <20201214091616.13545-1-Sergey.Semin@baikalelectronics.ru> MIME-Version: 1.0 X-ClientProxiedBy: MAIL.baikal.int (192.168.51.25) To mail (192.168.51.25) Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Since the Tx clock is now requested and enabled/disabled in the STMMAC DT-based platform config method, there is no need in duplicating the same procedures in the DW MAC iMX sub-driver. Signed-off-by: Serge Semin --- .../net/ethernet/stmicro/stmmac/dwmac-imx.c | 21 +++++-------------- 1 file changed, 5 insertions(+), 16 deletions(-) diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-imx.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-imx.c index efef5476a577..7b4590670b4e 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac-imx.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-imx.c @@ -40,7 +40,6 @@ struct imx_dwmac_ops { struct imx_priv_data { struct device *dev; - struct clk *clk_tx; struct clk *clk_mem; struct regmap *intf_regmap; u32 intf_reg_off; @@ -104,12 +103,6 @@ static int imx_dwmac_init(struct platform_device *pdev, void *priv) return ret; } - ret = clk_prepare_enable(dwmac->clk_tx); - if (ret) { - dev_err(&pdev->dev, "tx clock enable failed\n"); - goto clk_tx_en_failed; - } - if (dwmac->ops->set_intf_mode) { ret = dwmac->ops->set_intf_mode(plat_dat); if (ret) @@ -119,8 +112,6 @@ static int imx_dwmac_init(struct platform_device *pdev, void *priv) return 0; intf_mode_failed: - clk_disable_unprepare(dwmac->clk_tx); -clk_tx_en_failed: clk_disable_unprepare(dwmac->clk_mem); return ret; } @@ -129,7 +120,6 @@ static void imx_dwmac_exit(struct platform_device *pdev, void *priv) { struct imx_priv_data *dwmac = priv; - clk_disable_unprepare(dwmac->clk_tx); clk_disable_unprepare(dwmac->clk_mem); } @@ -162,7 +152,7 @@ static void imx_dwmac_fix_speed(void *priv, unsigned int speed) return; } - err = clk_set_rate(dwmac->clk_tx, rate); + err = clk_set_rate(plat_dat->tx_clk, rate); if (err < 0) dev_err(dwmac->dev, "failed to set tx rate %lu\n", rate); } @@ -176,10 +166,9 @@ imx_dwmac_parse_dt(struct imx_priv_data *dwmac, struct device *dev) if (of_get_property(np, "snps,rmii_refclk_ext", NULL)) dwmac->rmii_refclk_ext = true; - dwmac->clk_tx = devm_clk_get(dev, "tx"); - if (IS_ERR(dwmac->clk_tx)) { - dev_err(dev, "failed to get tx clock\n"); - return PTR_ERR(dwmac->clk_tx); + if (!dwmac->plat_dat->tx_clk) { + dev_err(dev, "no tx clock found\n"); + return -EINVAL; } dwmac->clk_mem = NULL; @@ -239,6 +228,7 @@ static int imx_dwmac_probe(struct platform_device *pdev) dwmac->ops = data; dwmac->dev = &pdev->dev; + dwmac->plat_dat = plat_dat; ret = imx_dwmac_parse_dt(dwmac, &pdev->dev); if (ret) { @@ -257,7 +247,6 @@ static int imx_dwmac_probe(struct platform_device *pdev) plat_dat->exit = imx_dwmac_exit; plat_dat->fix_mac_speed = imx_dwmac_fix_speed; plat_dat->bsp_priv = dwmac; - dwmac->plat_dat = plat_dat; ret = imx_dwmac_init(pdev, dwmac); if (ret)