From patchwork Thu Mar 11 02:09:53 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ilya Lipnitskiy X-Patchwork-Id: 398240 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=-15.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, USER_AGENT_GIT autolearn=ham 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 BCB6BC433E9 for ; Thu, 11 Mar 2021 02:12:39 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 7C17A64FDF for ; Thu, 11 Mar 2021 02:12:39 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230212AbhCKCMH (ORCPT ); Wed, 10 Mar 2021 21:12:07 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42350 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229887AbhCKCLk (ORCPT ); Wed, 10 Mar 2021 21:11:40 -0500 Received: from mail-pl1-x629.google.com (mail-pl1-x629.google.com [IPv6:2607:f8b0:4864:20::629]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4D820C061574; Wed, 10 Mar 2021 18:11:40 -0800 (PST) Received: by mail-pl1-x629.google.com with SMTP id u18so9437636plc.12; Wed, 10 Mar 2021 18:11:40 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=B3NvjxFQkBW7qiD7WXidQCqOgaMtOHmNc5t+RjW8jYs=; b=Ag4U2H/cx+7yWjZGqdF8jnN9Ftc1pFYjhKg1Qw/pfE+4UNlElJXTGt+DRYq5/fLFcf 4ihweh8lj8HfxiisnOoSxxoIio7jJX9I2f3X9SVyKbILLCPRzbVGzxDXjcZsbELf4xVB lRvDAbE6Z12HPMYC1h+p2qvPAU1vTXFHbRn2mVkkm+WI2Q7lS45WcUQ6YwhofEtXKGkB ZSrUAj8Jk2C12+mZyhZHZF4oRkdrc7rHgRDmG0+Qge+kCeou2tb+ZuzUgAUz+Xc6ejHW T+IU2eBT8bjy+9cpBIgrxWSXPM5bkWXaQ4vZppl58LNITAeZvnWoAeWuCW3QDMtNP4ex p77A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=B3NvjxFQkBW7qiD7WXidQCqOgaMtOHmNc5t+RjW8jYs=; b=s0/YdcmEQl602VGdYGqKzT/8aVt5j9fXQ/1vey1qhld6cThdtfyitM8zHuYIFyg04a 0DQ+/h74CweJA6qW2cwlQQwJFkmCOqN0eRKCZfNAlcWxRnd/wJvTrNeX2KEmuZSEtet+ e0BEfGG68KW3M9S2x2vavVdRwMQivzn3ST/niB6fVT5WZgG33JnE7Qc2lAWvZ2SIlOXK Rxlvh0k2339tX2lLSnP8TiaAXWCG/hFWrHcbMkxEQS+4eCZqZZ/DNMnf49Uu+fNAUxrt bX8hci7xEH/LfA5GmfF/nq+BFxtQqb1s6a1i/CiomP42ditGJwdZWY8oIfHvEFgUKy8U oZSA== X-Gm-Message-State: AOAM532EjrrlCBOAfoGXAnRjXtST3yS+dPWOWrC9cOykoxn7JHYGf/Oc pg4Ib38TcxPotsfH7g7FEQg= X-Google-Smtp-Source: ABdhPJypqyrbNio+ygSelexHSUtxznF8mzVzEBNNmvXV5kFlJJk14K7c2oLyfeZUSoVWv9YhxHNb/Q== X-Received: by 2002:a17:90a:c84:: with SMTP id v4mr6627560pja.228.1615428699863; Wed, 10 Mar 2021 18:11:39 -0800 (PST) Received: from z640-arch.lan ([2602:61:738f:1000::678]) by smtp.gmail.com with ESMTPSA id p190sm672603pga.78.2021.03.10.18.11.39 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 10 Mar 2021 18:11:39 -0800 (PST) From: Ilya Lipnitskiy To: Sean Wang , Landen Chao , Andrew Lunn , Vivien Didelot , Florian Fainelli , Vladimir Oltean , "David S. Miller" , Jakub Kicinski , Matthias Brugger , Philipp Zabel , Russell King , netdev@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, linux-kernel@vger.kernel.org Cc: Ilya Lipnitskiy Subject: [PATCH net-next, v2 2/3] net: dsa: mt7530: clean up redundant clock enables Date: Wed, 10 Mar 2021 18:09:53 -0800 Message-Id: <20210311020954.842341-2-ilya.lipnitskiy@gmail.com> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210311020954.842341-1-ilya.lipnitskiy@gmail.com> References: <20210311020954.842341-1-ilya.lipnitskiy@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Two minor changes: - In RGMII mode, the REG_GSWCK_EN bit of CORE_TRGMII_GSW_CLK_CG gets set three times in a row. In TRGMII mode, two times. Simplify the code and only set it once for both modes. - When disabling PLL, there is no need to call core_write_mmd_indirect directly, use the core_write wrapper instead like the rest of the code in the function does. This change helps with consistency and readability. Signed-off-by: Ilya Lipnitskiy --- drivers/net/dsa/mt7530.c | 11 +++-------- 1 file changed, 3 insertions(+), 8 deletions(-) diff --git a/drivers/net/dsa/mt7530.c b/drivers/net/dsa/mt7530.c index 9871d7cff93a..80a35caf920e 100644 --- a/drivers/net/dsa/mt7530.c +++ b/drivers/net/dsa/mt7530.c @@ -444,10 +444,7 @@ mt7530_pad_clk_setup(struct dsa_switch *ds, phy_interface_t interface) * provide our own core_write_mmd_indirect to complete this * function. */ - core_write_mmd_indirect(priv, - CORE_GSWPLL_GRP1, - MDIO_MMD_VEND2, - 0); + core_write(priv, CORE_GSWPLL_GRP1, 0); /* Set core clock into 500Mhz */ core_write(priv, CORE_GSWPLL_GRP2, @@ -460,11 +457,7 @@ mt7530_pad_clk_setup(struct dsa_switch *ds, phy_interface_t interface) RG_GSWPLL_POSDIV_200M(2) | RG_GSWPLL_FBKDIV_200M(32)); - /* Enable MT7530 core clock */ - core_set(priv, CORE_TRGMII_GSW_CLK_CG, REG_GSWCK_EN); - /* Setup the MT7530 TRGMII Tx Clock */ - core_set(priv, CORE_TRGMII_GSW_CLK_CG, REG_GSWCK_EN); core_write(priv, CORE_PLL_GROUP5, RG_LCDDS_PCW_NCPO1(ncpo1)); core_write(priv, CORE_PLL_GROUP6, RG_LCDDS_PCW_NCPO0(0)); core_write(priv, CORE_PLL_GROUP10, RG_LCDDS_SSC_DELTA(ssc_delta)); @@ -478,6 +471,8 @@ mt7530_pad_clk_setup(struct dsa_switch *ds, phy_interface_t interface) core_write(priv, CORE_PLL_GROUP7, RG_LCDDS_PCW_NCPO_CHG | RG_LCCDS_C(3) | RG_LCDDS_PWDB | RG_LCDDS_ISO_EN); + + /* Enable MT7530 core and TRGMII Tx clocks */ core_set(priv, CORE_TRGMII_GSW_CLK_CG, REG_GSWCK_EN | REG_TRGMIICK_EN);