From patchwork Wed Mar 31 10:57:26 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dmitry Baryshkov X-Patchwork-Id: 12175145 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,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,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 36E37C4345F for ; Wed, 31 Mar 2021 10:58:38 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 132FC619AE for ; Wed, 31 Mar 2021 10:58:38 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235137AbhCaK6G (ORCPT ); Wed, 31 Mar 2021 06:58:06 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56596 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235153AbhCaK5w (ORCPT ); Wed, 31 Mar 2021 06:57:52 -0400 Received: from mail-lf1-x135.google.com (mail-lf1-x135.google.com [IPv6:2a00:1450:4864:20::135]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C714BC061761 for ; Wed, 31 Mar 2021 03:57:51 -0700 (PDT) Received: by mail-lf1-x135.google.com with SMTP id m12so28490602lfq.10 for ; Wed, 31 Mar 2021 03:57:51 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=24LsF/6oW5HLhGbrMso4ghJ48YFWrYItlbxPNj/3ct8=; b=FI41BkrGLO4q6rZieS2DNj6k81jGZNIMnT/IPSCmqhtdmbO7wiS47zzDSPUB238Dca 799v+OB9oylpukfAOOEXaot0DX/ah9WDKdmoASvLHkqOOHP52Bs0cBAANNFDygYwRJI0 2shPNB6V3Z1nIJYHhR7dKNUI80kGZ54q65+OtTVjSxep8nNoV5TBqgfICScnOjc3zDUU 6H+AilVOMVyV0ccDK+f1ERBFcKZeVKGtysK5aYZUMK+ZkxYIU2ypYS+Wix2o/WPVl+U+ 8oNNBy9dg5l84KLbn0WE+9UERVdjqkgrInLAAE/OBFdjV5P6IHBI+pKI2mLS2SwRimCb hhpQ== 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=24LsF/6oW5HLhGbrMso4ghJ48YFWrYItlbxPNj/3ct8=; b=mlB1tIWCPAHiFlFJj6EnLPC42BR2qtx8b2ixAt9Sl4/di3N2sJKwG9agIh227iHIey iQ5QS28W9Bgpg8v+nfrPD+wbnAhRhG/l/7n9eaC6uH2io9BTSQsAHXAn+F4UlP/0YDjD PFqCGV5wyhAadmX9QPgLA+g6Jmq2MdV6AFaVszFy1zKghin8nJwdRktR5bRH8vbHSC8W 8yruDxGft8rSG/jMg9Y1GWzOyi1eDrDFfZdPFMNy0FZHYSCQMj6nJwRTGLzkGjguoY9Q T9iN41deGSUMXAmf7YmA2xHxR8dMoazHKhsPSEa0ci8FZfS/xHEnAsIfZI1a7AN9zpl6 l6pw== X-Gm-Message-State: AOAM533FWA3jXhaZ9+MqvubNyRLzdYywbHslNoD6Lc0vPLpEhyHoxBIf Wsz9EqwolnprZSpMDByqtO1p1A== X-Google-Smtp-Source: ABdhPJwXXeCYYRDmlGZqRDma+CSssOi6hZviTr7hkFQpI+vSdKCVp/3tvA5SRf9MtUaPtgiGinbcGg== X-Received: by 2002:a19:8c19:: with SMTP id o25mr1883820lfd.547.1617188270370; Wed, 31 Mar 2021 03:57:50 -0700 (PDT) Received: from eriador.lan ([37.153.55.125]) by smtp.gmail.com with ESMTPSA id h3sm184359ljc.67.2021.03.31.03.57.49 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 31 Mar 2021 03:57:49 -0700 (PDT) From: Dmitry Baryshkov To: Rob Clark , Sean Paul , Abhinav Kumar , Jonathan Marek , Michael Turquette Cc: Stephen Boyd , David Airlie , Daniel Vetter , linux-arm-msm@vger.kernel.org, dri-devel@lists.freedesktop.org, freedreno@lists.freedesktop.org, linux-clk@vger.kernel.org, Stephen Boyd Subject: [PATCH v4 15/24] drm/msm/dsi: simplify vco_delay handling in dsi_phy_28nm driver Date: Wed, 31 Mar 2021 13:57:26 +0300 Message-Id: <20210331105735.3690009-16-dmitry.baryshkov@linaro.org> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210331105735.3690009-1-dmitry.baryshkov@linaro.org> References: <20210331105735.3690009-1-dmitry.baryshkov@linaro.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org Instead of setting the variable and then using it just in the one place, determine vco_delay directly at the PLL configuration time. Signed-off-by: Dmitry Baryshkov Reviewed-by: Abhinav Kumar Tested-by: Stephen Boyd # on sc7180 lazor --- drivers/gpu/drm/msm/dsi/phy/dsi_phy_28nm.c | 12 ++++-------- 1 file changed, 4 insertions(+), 8 deletions(-) diff --git a/drivers/gpu/drm/msm/dsi/phy/dsi_phy_28nm.c b/drivers/gpu/drm/msm/dsi/phy/dsi_phy_28nm.c index 3e9b7949b038..ed369eb18e9d 100644 --- a/drivers/gpu/drm/msm/dsi/phy/dsi_phy_28nm.c +++ b/drivers/gpu/drm/msm/dsi/phy/dsi_phy_28nm.c @@ -72,8 +72,6 @@ struct dsi_pll_28nm { struct platform_device *pdev; void __iomem *mmio; - int vco_delay; - struct pll_28nm_cached_state cached_state; }; @@ -212,8 +210,10 @@ static int dsi_pll_28nm_clk_set_rate(struct clk_hw *hw, unsigned long rate, pll_write(base + REG_DSI_28nm_PHY_PLL_SDM_CFG4, 0x00); /* Add hardware recommended delay for correct PLL configuration */ - if (pll_28nm->vco_delay) - udelay(pll_28nm->vco_delay); + if (pll->cfg->quirks & DSI_PHY_28NM_QUIRK_PHY_LP) + udelay(1000); + else + udelay(1); pll_write(base + REG_DSI_28nm_PHY_PLL_REFCLK_CFG, refclk_cfg); pll_write(base + REG_DSI_28nm_PHY_PLL_PWRGEN_CFG, 0x00); @@ -580,10 +580,6 @@ static int dsi_pll_28nm_init(struct msm_dsi_phy *phy) pll = &pll_28nm->base; pll->cfg = phy->cfg; - if (phy->cfg->quirks & DSI_PHY_28NM_QUIRK_PHY_LP) - pll_28nm->vco_delay = 1000; - else - pll_28nm->vco_delay = 1; ret = pll_28nm_register(pll_28nm, phy->provided_clocks->hws); if (ret) {