From patchwork Fri Apr 15 05:59:04 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: =?utf-8?b?UmV4LUJDIENoZW4gKOmZs+afj+i+sCk=?= X-Patchwork-Id: 12814610 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 9FEF2C433EF for ; Fri, 15 Apr 2022 06:25:50 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:CC:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=tYwLFeR4M8fqOyj+vvABA+pg2sWpAKoqO/BVF87dWWg=; b=WjQoP19QTVAfbe cWAzOAGDz/4ADrj9RlQ+cPL31LjVDWWsMFm9b0rbXZsAYfGr0NACdM171UUJkMA1utbWAaA6lCuqy Zdnt5rV9rzZF63Xry06FC5BigkIg/UOPgGPZ59esMwxEOD3LEx5zJN5ko2hHbbLV9El+Ut0NP4IYn gQEtb8VVaGwk4qTuV+IHeRRvwzWcDykTw4gruiKy2NJTTYBfKzqkiSAPcLcT6XuVks4peW6U9ytS4 3lbdcB3VaBZDH9ROXW16yRIPdP7a+BqceQmmo8u6I+9WpNcD0Gr6c92hRzju8PpidAmMcMof4lary zRJMposXokEiZ/KcHm9g==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1nfFNZ-008y4C-Mi; Fri, 15 Apr 2022 06:24:26 +0000 Received: from mailgw01.mediatek.com ([216.200.240.184]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1nfF97-008tIx-CK; Fri, 15 Apr 2022 06:09:32 +0000 X-UUID: ab2fd4fb1c3b4b7cad2600de731a1d6a-20220414 X-UUID: ab2fd4fb1c3b4b7cad2600de731a1d6a-20220414 Received: from mtkcas66.mediatek.inc [(172.29.193.44)] by mailgw01.mediatek.com (envelope-from ) (musrelay.mediatek.com ESMTP with TLSv1.2 ECDHE-RSA-AES256-SHA384 256/256) with ESMTP id 1755753983; Thu, 14 Apr 2022 23:09:23 -0700 Received: from mtkexhb02.mediatek.inc (172.21.101.103) by MTKMBS62N2.mediatek.inc (172.29.193.42) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Thu, 14 Apr 2022 22:59:26 -0700 Received: from mtkcas11.mediatek.inc (172.21.101.40) by mtkexhb02.mediatek.inc (172.21.101.103) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Fri, 15 Apr 2022 13:59:18 +0800 Received: from mtksdccf07.mediatek.inc (172.21.84.99) by mtkcas11.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Fri, 15 Apr 2022 13:59:18 +0800 From: Rex-BC Chen To: , , , , CC: , , , , , , , , , , , Rex-BC Chen Subject: [PATCH V3 03/15] cpufreq: mediatek: Replace old_* with pre_* Date: Fri, 15 Apr 2022 13:59:04 +0800 Message-ID: <20220415055916.28350-4-rex-bc.chen@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20220415055916.28350-1-rex-bc.chen@mediatek.com> References: <20220415055916.28350-1-rex-bc.chen@mediatek.com> MIME-Version: 1.0 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220414_230929_494246_CCFD4457 X-CRM114-Status: GOOD ( 14.62 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org To make driver more readable, replace old_* with pre_*. Signed-off-by: Rex-BC Chen Reviewed-by: AngeloGioacchino Del Regno proc_reg; struct regulator *sram_reg = info->sram_reg; - int old_vproc, old_vsram, new_vsram, vsram, vproc, ret; + int pre_vproc, pre_vsram, new_vsram, vsram, vproc, ret; - old_vproc = regulator_get_voltage(proc_reg); - if (old_vproc < 0) { + pre_vproc = regulator_get_voltage(proc_reg); + if (pre_vproc < 0) { dev_err(info->cpu_dev, - "invalid Vproc value: %d\n", old_vproc); - return old_vproc; + "invalid Vproc value: %d\n", pre_vproc); + return pre_vproc; } /* Vsram should not exceed the maximum allowed voltage of SoC. */ new_vsram = min(new_vproc + MIN_VOLT_SHIFT, MAX_VOLT_LIMIT); - if (old_vproc < new_vproc) { + if (pre_vproc < new_vproc) { /* * When scaling up voltages, Vsram and Vproc scale up step * by step. At each step, set Vsram to (Vproc + 200mV) first, @@ -80,20 +80,20 @@ static int mtk_cpufreq_voltage_tracking(struct mtk_cpu_dvfs_info *info, * Keep doing it until Vsram and Vproc hit target voltages. */ do { - old_vsram = regulator_get_voltage(sram_reg); - if (old_vsram < 0) { + pre_vsram = regulator_get_voltage(sram_reg); + if (pre_vsram < 0) { dev_err(info->cpu_dev, - "invalid Vsram value: %d\n", old_vsram); - return old_vsram; + "invalid Vsram value: %d\n", pre_vsram); + return pre_vsram; } - old_vproc = regulator_get_voltage(proc_reg); - if (old_vproc < 0) { + pre_vproc = regulator_get_voltage(proc_reg); + if (pre_vproc < 0) { dev_err(info->cpu_dev, - "invalid Vproc value: %d\n", old_vproc); - return old_vproc; + "invalid Vproc value: %d\n", pre_vproc); + return pre_vproc; } - vsram = min(new_vsram, old_vproc + MAX_VOLT_SHIFT); + vsram = min(new_vsram, pre_vproc + MAX_VOLT_SHIFT); if (vsram + VOLT_TOL >= MAX_VOLT_LIMIT) { vsram = MAX_VOLT_LIMIT; @@ -122,12 +122,12 @@ static int mtk_cpufreq_voltage_tracking(struct mtk_cpu_dvfs_info *info, ret = regulator_set_voltage(proc_reg, vproc, vproc + VOLT_TOL); if (ret) { - regulator_set_voltage(sram_reg, old_vsram, - old_vsram); + regulator_set_voltage(sram_reg, pre_vsram, + pre_vsram); return ret; } } while (vproc < new_vproc || vsram < new_vsram); - } else if (old_vproc > new_vproc) { + } else if (pre_vproc > new_vproc) { /* * When scaling down voltages, Vsram and Vproc scale down step * by step. At each step, set Vproc to (Vsram - 200mV) first, @@ -135,20 +135,20 @@ static int mtk_cpufreq_voltage_tracking(struct mtk_cpu_dvfs_info *info, * Keep doing it until Vsram and Vproc hit target voltages. */ do { - old_vproc = regulator_get_voltage(proc_reg); - if (old_vproc < 0) { + pre_vproc = regulator_get_voltage(proc_reg); + if (pre_vproc < 0) { dev_err(info->cpu_dev, - "invalid Vproc value: %d\n", old_vproc); - return old_vproc; + "invalid Vproc value: %d\n", pre_vproc); + return pre_vproc; } - old_vsram = regulator_get_voltage(sram_reg); - if (old_vsram < 0) { + pre_vsram = regulator_get_voltage(sram_reg); + if (pre_vsram < 0) { dev_err(info->cpu_dev, - "invalid Vsram value: %d\n", old_vsram); - return old_vsram; + "invalid Vsram value: %d\n", pre_vsram); + return pre_vsram; } - vproc = max(new_vproc, old_vsram - MAX_VOLT_SHIFT); + vproc = max(new_vproc, pre_vsram - MAX_VOLT_SHIFT); ret = regulator_set_voltage(proc_reg, vproc, vproc + VOLT_TOL); if (ret) @@ -178,8 +178,8 @@ static int mtk_cpufreq_voltage_tracking(struct mtk_cpu_dvfs_info *info, } if (ret) { - regulator_set_voltage(proc_reg, old_vproc, - old_vproc); + regulator_set_voltage(proc_reg, pre_vproc, + pre_vproc); return ret; } } while (vproc > new_vproc + VOLT_TOL || @@ -207,16 +207,16 @@ static int mtk_cpufreq_set_target(struct cpufreq_policy *policy, struct mtk_cpu_dvfs_info *info = policy->driver_data; struct device *cpu_dev = info->cpu_dev; struct dev_pm_opp *opp; - long freq_hz, old_freq_hz; - int vproc, old_vproc, inter_vproc, target_vproc, ret; + long freq_hz, pre_freq_hz; + int vproc, pre_vproc, inter_vproc, target_vproc, ret; inter_vproc = info->intermediate_voltage; - old_freq_hz = clk_get_rate(cpu_clk); - old_vproc = regulator_get_voltage(info->proc_reg); - if (old_vproc < 0) { - dev_err(cpu_dev, "invalid Vproc value: %d\n", old_vproc); - return old_vproc; + pre_freq_hz = clk_get_rate(cpu_clk); + pre_vproc = regulator_get_voltage(info->proc_reg); + if (pre_vproc < 0) { + dev_err(cpu_dev, "invalid Vproc value: %d\n", pre_vproc); + return pre_vproc; } freq_hz = freq_table[index].frequency * 1000; @@ -235,12 +235,12 @@ static int mtk_cpufreq_set_target(struct cpufreq_policy *policy, * current voltage, scale up voltage first. */ target_vproc = (inter_vproc > vproc) ? inter_vproc : vproc; - if (old_vproc < target_vproc) { + if (pre_vproc < target_vproc) { ret = mtk_cpufreq_set_voltage(info, target_vproc); if (ret) { dev_err(cpu_dev, "cpu%d: failed to scale up voltage!\n", policy->cpu); - mtk_cpufreq_set_voltage(info, old_vproc); + mtk_cpufreq_set_voltage(info, pre_vproc); return ret; } } @@ -250,7 +250,7 @@ static int mtk_cpufreq_set_target(struct cpufreq_policy *policy, if (ret) { dev_err(cpu_dev, "cpu%d: failed to re-parent cpu clock!\n", policy->cpu); - mtk_cpufreq_set_voltage(info, old_vproc); + mtk_cpufreq_set_voltage(info, pre_vproc); WARN_ON(1); return ret; } @@ -261,7 +261,7 @@ static int mtk_cpufreq_set_target(struct cpufreq_policy *policy, dev_err(cpu_dev, "cpu%d: failed to scale cpu clock rate!\n", policy->cpu); clk_set_parent(cpu_clk, armpll); - mtk_cpufreq_set_voltage(info, old_vproc); + mtk_cpufreq_set_voltage(info, pre_vproc); return ret; } @@ -279,13 +279,13 @@ static int mtk_cpufreq_set_target(struct cpufreq_policy *policy, * If the new voltage is lower than the intermediate voltage or the * original voltage, scale down to the new voltage. */ - if (vproc < inter_vproc || vproc < old_vproc) { + if (vproc < inter_vproc || vproc < pre_vproc) { ret = mtk_cpufreq_set_voltage(info, vproc); if (ret) { dev_err(cpu_dev, "cpu%d: failed to scale down voltage!\n", policy->cpu); clk_set_parent(cpu_clk, info->inter_clk); - clk_set_rate(armpll, old_freq_hz); + clk_set_rate(armpll, pre_freq_hz); clk_set_parent(cpu_clk, armpll); return ret; }