From mboxrd@z Thu Jan 1 00:00:00 1970 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 3ACD9C433F5 for ; Wed, 19 Jan 2022 08:58:19 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1352784AbiASI6S (ORCPT ); Wed, 19 Jan 2022 03:58:18 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53300 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1352711AbiASI6F (ORCPT ); Wed, 19 Jan 2022 03:58:05 -0500 Received: from mail-wm1-x334.google.com (mail-wm1-x334.google.com [IPv6:2a00:1450:4864:20::334]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id EC9C2C06173F for ; Wed, 19 Jan 2022 00:58:04 -0800 (PST) Received: by mail-wm1-x334.google.com with SMTP id l12-20020a7bc34c000000b003467c58cbdfso12705794wmj.2 for ; Wed, 19 Jan 2022 00:58:04 -0800 (PST) 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=oPK1edLyJrRFFEyWcyiec8UXIbfSrQa/ueeEQUG7KDE=; b=RxId/LPPz8XHSLlm0CocGEDr7QDKa56PiTrMOew8Dr7TEhxk3sQtbBjbTTP0BUbLlA hEnsQGVFflOZKZ85Pg2Lv3T7ciazoFV+eRZWdXHcbuvRWrYZe2xg3RTKN7AresVLPN5j kTCixJsmCYlYtWndRvSh8/jnLCKuahOVY3Yi8YpLfSUEzRtIwz+CaBAkyBHnYIBEyxUH +GGTTyjmWdOu+Q3eHYPZE2JjFYfX7R+wPQ9+6J2l/XNgRHXpbeRiacWlwGQSC1W1BBVG +Db+xNxOohg8Gr4cq6nlFG4Xcq1DTp1oTgR0OPzPpxcgT6Ff+EwR2on34Cq8Tch6PoLn 9ArQ== 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=oPK1edLyJrRFFEyWcyiec8UXIbfSrQa/ueeEQUG7KDE=; b=1ypf74qpCuT9S/o0nT9izO+QZmpOvOe6iwa1j/glyAaQVfPQaRoN7M1VHnhEa1lcBR /Ljd0lVGAjDpdoX52ZKrQdSnioF/MFeuiuPcGqYxV7LUvc7eMRp82PiGKife/r+x+3EX Z+GELjht/bgKtY1PdMRGfz+77Vxl27kLdGOH/hj2P489uCWHIC2k/Rh3LcDOrrlY8a5U VEVsdaTzD2pR6SV7EbKkLJwr6/7Hvc4B3ijuY0hB5N6PlCVOU0Ys3j00N10jwHcY3oEz x/fOiMFHac1nRnIHii5e6vpJkjYLPzmrPaxCVND8YC62M3XMAFBFZ+vzhZVW1xt91yrl LFNQ== X-Gm-Message-State: AOAM530KSnozIhNPqmxs80M/gvxs8sgvZHgl9xjHjVu6tefLG1W5IHhT P/+ievRpV6+uKdZ3wXxyrZ0UkQ== X-Google-Smtp-Source: ABdhPJwa3WcUUIUWowlFaLyWigMFvCU2p+CzSmV1jvvN9oTJzeLMzRF7JJk4scahGRcFbHBoAGI2Vw== X-Received: by 2002:a7b:c747:: with SMTP id w7mr1242660wmk.150.1642582683431; Wed, 19 Jan 2022 00:58:03 -0800 (PST) Received: from localhost.localdomain ([2a01:e34:ed2f:f020:ef34:de48:dc4e:ad87]) by smtp.gmail.com with ESMTPSA id 10sm4491454wmc.44.2022.01.19.00.58.01 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 19 Jan 2022 00:58:02 -0800 (PST) From: Daniel Lezcano To: daniel.lezcano@linaro.org, rjw@rjwysocki.net Cc: robh@kernel.org, lukasz.luba@arm.com, heiko@sntech.de, arnd@linaro.org, linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org, Ulf Hansson , Daniel Lezcano , "Rafael J. Wysocki" Subject: [PATCH v6 3/5] powercap/drivers/dtpm: Add CPU DT initialization support Date: Wed, 19 Jan 2022 09:57:17 +0100 Message-Id: <20220119085719.1357874-4-daniel.lezcano@linaro.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220119085719.1357874-1-daniel.lezcano@linaro.org> References: <20220119085719.1357874-1-daniel.lezcano@linaro.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Based on the previous DT changes in the core code, use the 'setup' callback to initialize the CPU DTPM backend. Code is reorganized to stick to the DTPM table description. No functional changes. Signed-off-by: Daniel Lezcano Reviewed-by: Ulf Hansson --- drivers/powercap/dtpm_cpu.c | 36 ++++++++++++++++++++++++++++++------ 1 file changed, 30 insertions(+), 6 deletions(-) diff --git a/drivers/powercap/dtpm_cpu.c b/drivers/powercap/dtpm_cpu.c index 5763e0ce2af5..eed5ad688d46 100644 --- a/drivers/powercap/dtpm_cpu.c +++ b/drivers/powercap/dtpm_cpu.c @@ -21,6 +21,7 @@ #include #include #include +#include #include #include #include @@ -176,6 +177,17 @@ static int cpuhp_dtpm_cpu_offline(unsigned int cpu) } static int cpuhp_dtpm_cpu_online(unsigned int cpu) +{ + struct dtpm_cpu *dtpm_cpu; + + dtpm_cpu = per_cpu(dtpm_per_cpu, cpu); + if (dtpm_cpu) + return dtpm_update_power(&dtpm_cpu->dtpm); + + return 0; +} + +static int __dtpm_cpu_setup(int cpu, struct dtpm *parent) { struct dtpm_cpu *dtpm_cpu; struct cpufreq_policy *policy; @@ -183,6 +195,10 @@ static int cpuhp_dtpm_cpu_online(unsigned int cpu) char name[CPUFREQ_NAME_LEN]; int ret = -ENOMEM; + dtpm_cpu = per_cpu(dtpm_per_cpu, cpu); + if (dtpm_cpu) + return 0; + policy = cpufreq_cpu_get(cpu); if (!policy) return 0; @@ -191,10 +207,6 @@ static int cpuhp_dtpm_cpu_online(unsigned int cpu) if (!pd) return -EINVAL; - dtpm_cpu = per_cpu(dtpm_per_cpu, cpu); - if (dtpm_cpu) - return dtpm_update_power(&dtpm_cpu->dtpm); - dtpm_cpu = kzalloc(sizeof(*dtpm_cpu), GFP_KERNEL); if (!dtpm_cpu) return -ENOMEM; @@ -207,7 +219,7 @@ static int cpuhp_dtpm_cpu_online(unsigned int cpu) snprintf(name, sizeof(name), "cpu%d-cpufreq", dtpm_cpu->cpu); - ret = dtpm_register(name, &dtpm_cpu->dtpm, NULL); + ret = dtpm_register(name, &dtpm_cpu->dtpm, parent); if (ret) goto out_kfree_dtpm_cpu; @@ -231,7 +243,18 @@ static int cpuhp_dtpm_cpu_online(unsigned int cpu) return ret; } -static int __init dtpm_cpu_init(void) +static int dtpm_cpu_setup(struct dtpm *dtpm, struct device_node *np) +{ + int cpu; + + cpu = of_cpu_node_to_id(np); + if (cpu < 0) + return 0; + + return __dtpm_cpu_setup(cpu, dtpm); +} + +static int dtpm_cpu_init(void) { int ret; @@ -272,4 +295,5 @@ static int __init dtpm_cpu_init(void) struct dtpm_subsys_ops dtpm_cpu_ops = { .name = KBUILD_MODNAME, .init = dtpm_cpu_init, + .setup = dtpm_cpu_setup, }; -- 2.25.1