From patchwork Tue Mar 8 19:08:54 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Brian Norris X-Patchwork-Id: 12774252 X-Patchwork-Delegate: cw00.choi@samsung.com Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id B39F6C433F5 for ; Tue, 8 Mar 2022 19:09:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1349909AbiCHTKq (ORCPT ); Tue, 8 Mar 2022 14:10:46 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55526 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1349935AbiCHTKj (ORCPT ); Tue, 8 Mar 2022 14:10:39 -0500 Received: from mail-pj1-x102f.google.com (mail-pj1-x102f.google.com [IPv6:2607:f8b0:4864:20::102f]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 209DF4B418 for ; Tue, 8 Mar 2022 11:09:29 -0800 (PST) Received: by mail-pj1-x102f.google.com with SMTP id z12-20020a17090ad78c00b001bf022b69d6so211095pju.2 for ; Tue, 08 Mar 2022 11:09:29 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=qamn1KXLKkoAp4pJxR8atvIxLoRPmk7xdgGcjv6i0+c=; b=KWpUP9V1zWY6hI52DajnsMEkJD26WM9/Ne3QgRKuLujtTMP2693SAgDCFDcDgwEAt1 61zLFBQ2BCxo90/6a+I4tJNLsduxlllG5zcG6lqTCv5kSeKtgZuSVDFCSH7lWIyVt0gh jIix0O3NEpZiThGtbsqHsraHNYAV0oKrhUEm0= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=qamn1KXLKkoAp4pJxR8atvIxLoRPmk7xdgGcjv6i0+c=; b=QO9SWIVta+3ttMTd99PV/vwD4DkGN1lLaOMpUf8tAQ/SluJWJs1azl9IaUeP6Zfq8m AfgcUCj1crMRm46JJw9sN3jKRC1N+i1chO29zDwptMiPL4c1wdrzXFByc7mwvKAsFcBt hjfkoKVKdE1PMncfhDqfQOuWvCy6vhbVB46iBgJs6Umki21FQKcOceh2YKCQHwu/7tod dZfle3RwE7QnLjccMOEnqoOTeoEXK/kkA6fhyGzwc4SGxPsGG/kqGpbyKltiGkdRDdqX WIOs2ddcW7z5j1tVgSFkdf/jsyRNOLpobl4K/RL82DmrsZbqCtaGjEYnOD2cCcjo7fBD IXbA== X-Gm-Message-State: AOAM532gfrqSSfptA+6Hh6y1qoSC5yO9f3be4rjtABgn0DKOOf7L//bF 6SJMZCFjsKH/XBXcJTCrs3ysrQ== X-Google-Smtp-Source: ABdhPJxMRM3jSlzJKvwYSqv2fc/aj5x5HjMrnLPxxun/3azB6oM37SyO01OzdnD9GIMEeXXx7+NFgg== X-Received: by 2002:a17:90a:3906:b0:1bf:a0a6:d208 with SMTP id y6-20020a17090a390600b001bfa0a6d208mr1809264pjb.21.1646766568597; Tue, 08 Mar 2022 11:09:28 -0800 (PST) Received: from localhost ([2620:15c:202:201:b3e3:a188:cbfc:3a0e]) by smtp.gmail.com with UTF8SMTPSA id f13-20020a056a001acd00b004f0f9a967basm20781448pfv.100.2022.03.08.11.09.27 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 08 Mar 2022 11:09:28 -0800 (PST) From: Brian Norris To: MyungJoo Ham , Kyungmin Park , Chanwoo Choi , Rob Herring , Heiko Stuebner Cc: Derek Basehore , devicetree@vger.kernel.org, linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org, Lin Huang , linux-arm-kernel@lists.infradead.org, linux-pm@vger.kernel.org, Brian Norris Subject: [PATCH v4 08/15] PM / devfreq: rk3399_dmc: Use bitfield macro definitions for ODT_PD Date: Tue, 8 Mar 2022 11:08:54 -0800 Message-Id: <20220308110825.v4.8.I0f36da588afd01d0dc9ce5866240efa34bd91e21@changeid> X-Mailer: git-send-email 2.35.1.616.g0bdcbb4464-goog In-Reply-To: <20220308190901.3144566-1-briannorris@chromium.org> References: <20220308190901.3144566-1-briannorris@chromium.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org We're going to add new usages, and it's cleaner to work with macros instead of comments and magic numbers. Signed-off-by: Brian Norris --- (no changes since v1) drivers/devfreq/rk3399_dmc.c | 43 ++++++++++++++++++++---------------- 1 file changed, 24 insertions(+), 19 deletions(-) diff --git a/drivers/devfreq/rk3399_dmc.c b/drivers/devfreq/rk3399_dmc.c index 8f447217303f..c4efbc15cbb1 100644 --- a/drivers/devfreq/rk3399_dmc.c +++ b/drivers/devfreq/rk3399_dmc.c @@ -5,6 +5,7 @@ */ #include +#include #include #include #include @@ -23,6 +24,15 @@ #include #include +#define RK3399_SET_ODT_PD_0_SR_IDLE GENMASK(7, 0) +#define RK3399_SET_ODT_PD_0_SR_MC_GATE_IDLE GENMASK(15, 8) +#define RK3399_SET_ODT_PD_0_STANDBY_IDLE GENMASK(31, 16) + +#define RK3399_SET_ODT_PD_1_PD_IDLE GENMASK(11, 0) +#define RK3399_SET_ODT_PD_1_SRPD_LITE_IDLE GENMASK(27, 16) + +#define RK3399_SET_ODT_PD_2_ODT_ENABLE BIT(0) + struct rk3399_dmcfreq { struct device *dev; struct devfreq *devfreq; @@ -55,7 +65,6 @@ static int rk3399_dmcfreq_target(struct device *dev, unsigned long *freq, unsigned long old_clk_rate = dmcfreq->rate; unsigned long target_volt, target_rate; struct arm_smccc_res res; - bool odt_enable = false; int err; opp = devfreq_recommended_opp(dev, freq, flags); @@ -72,8 +81,10 @@ static int rk3399_dmcfreq_target(struct device *dev, unsigned long *freq, mutex_lock(&dmcfreq->lock); if (dmcfreq->regmap_pmu) { + unsigned int odt_pd_arg2 = 0; + if (target_rate >= dmcfreq->odt_dis_freq) - odt_enable = true; + odt_pd_arg2 |= RK3399_SET_ODT_PD_2_ODT_ENABLE; /* * This makes a SMC call to the TF-A to set the DDR PD @@ -83,7 +94,7 @@ static int rk3399_dmcfreq_target(struct device *dev, unsigned long *freq, arm_smccc_smc(ROCKCHIP_SIP_DRAM_FREQ, dmcfreq->odt_pd_arg0, dmcfreq->odt_pd_arg1, ROCKCHIP_SIP_CONFIG_DRAM_SET_ODT_PD, - odt_enable, 0, 0, 0, &res); + odt_pd_arg2, 0, 0, 0, &res); } /* @@ -316,23 +327,17 @@ static int rk3399_dmcfreq_probe(struct platform_device *pdev) /* * In TF-A there is a platform SIP call to set the PD (power-down) * timings and to enable or disable the ODT (on-die termination). - * This call needs three arguments as follows: - * - * arg0: - * bit[0-7] : sr_idle - * bit[8-15] : sr_mc_gate_idle - * bit[16-31] : standby idle - * arg1: - * bit[0-11] : pd_idle - * bit[16-27] : srpd_lite_idle - * arg2: - * bit[0] : odt enable */ - data->odt_pd_arg0 = (data->sr_idle & 0xff) | - ((data->sr_mc_gate_idle & 0xff) << 8) | - ((data->standby_idle & 0xffff) << 16); - data->odt_pd_arg1 = (data->pd_idle & 0xfff) | - ((data->srpd_lite_idle & 0xfff) << 16); + data->odt_pd_arg0 = + FIELD_PREP(RK3399_SET_ODT_PD_0_SR_IDLE, data->sr_idle) | + FIELD_PREP(RK3399_SET_ODT_PD_0_SR_MC_GATE_IDLE, + data->sr_mc_gate_idle) | + FIELD_PREP(RK3399_SET_ODT_PD_0_STANDBY_IDLE, + data->standby_idle); + data->odt_pd_arg1 = + FIELD_PREP(RK3399_SET_ODT_PD_1_PD_IDLE, data->pd_idle) | + FIELD_PREP(RK3399_SET_ODT_PD_1_SRPD_LITE_IDLE, + data->srpd_lite_idle); /* * We add a devfreq driver to our parent since it has a device tree node