From patchwork Sun Dec 6 23:52:26 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Russell King X-Patchwork-Id: 7779691 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 4F1DC9F387 for ; Sun, 6 Dec 2015 23:55:23 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 5645420453 for ; Sun, 6 Dec 2015 23:55:22 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) (using TLSv1.2 with cipher AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 4FC5F20437 for ; Sun, 6 Dec 2015 23:55:21 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1a5j79-000778-6v; Sun, 06 Dec 2015 23:53:11 +0000 Received: from pandora.arm.linux.org.uk ([2001:4d48:ad52:3201:214:fdff:fe10:1be6]) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1a5j73-000761-6a for linux-arm-kernel@lists.infradead.org; Sun, 06 Dec 2015 23:53:07 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=arm.linux.org.uk; s=pandora-2014; h=Date:Sender:Message-Id:Content-Type:Content-Transfer-Encoding:MIME-Version:Subject:Cc:To:From; bh=ykucYTkuc1oMVKN3phIxsvR4W4L3mo49Bc25Anc+r/U=; b=nAAr/EA/Avf7yJzMavOO4AHKHrU2DZ633CgmC0CAlotOkmZVBDv8PDozovhwjWlNYkH0E7tmSyfo9ISdkaRBJs27OjHJk9H4DqlUrM1ZxH5OoOHdIiO8woCU1rtfkB26UCs1jb8e9uV3o8OPexjczYNMJjT3Gm580jUUm2+t/84=; Received: from e0022681537dd.dyn.arm.linux.org.uk ([2002:4e20:1eda:1:222:68ff:fe15:37dd]:33422 helo=rmk-PC.arm.linux.org.uk) by pandora.arm.linux.org.uk with esmtpsa (TLSv1:AES128-SHA:128) (Exim 4.82_1-5b7a7c0-XX) (envelope-from ) id 1a5j6S-0004jY-Nx; Sun, 06 Dec 2015 23:52:28 +0000 Received: from rmk by rmk-PC.arm.linux.org.uk with local (Exim 4.82_1-5b7a7c0-XX) (envelope-from ) id 1a5j6Q-000879-GO; Sun, 06 Dec 2015 23:52:26 +0000 From: Russell King To: Andrew Lunn , Gregory Clement , Jason Cooper Subject: [PATCH v2 2/3] soc: dove: add legacy support to PMU driver MIME-Version: 1.0 Content-Disposition: inline Message-Id: Date: Sun, 06 Dec 2015 23:52:26 +0000 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20151206_155306_001154_89E49CBF X-CRM114-Status: GOOD ( 14.92 ) X-Spam-Score: -4.3 (----) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-arm-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Spam-Status: No, score=-4.1 required=5.0 tests=BAYES_00,DKIM_SIGNED, RCVD_IN_DNSWL_MED, T_DKIM_INVALID, T_RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Add support for legacy non-DT Dove to the PMU driver, so that we can transition the legacy support over. Signed-off-by: Russell King Acked-by: Arnd Bergmann --- This is a re-post of a previous patch, except I've split it into two to make the eventual removal of legacy Dove easier, as I believe Arnd will have some patches which touch legacy Dove which will conflict. This makes it possible to revert this when the legacy Dove code is removed. drivers/soc/Makefile | 1 + drivers/soc/dove/pmu.c | 43 +++++++++++++++++++++++++++++++++++++++++++ include/linux/soc/dove/pmu.h | 18 ++++++++++++++++++ 3 files changed, 62 insertions(+) diff --git a/drivers/soc/Makefile b/drivers/soc/Makefile index 0b12d777d3c4..c99192f30679 100644 --- a/drivers/soc/Makefile +++ b/drivers/soc/Makefile @@ -2,6 +2,7 @@ # Makefile for the Linux Kernel SOC specific device drivers. # +obj-$(CONFIG_ARCH_DOVE) += dove/ obj-$(CONFIG_MACH_DOVE) += dove/ obj-$(CONFIG_ARCH_MEDIATEK) += mediatek/ obj-$(CONFIG_ARCH_QCOM) += qcom/ diff --git a/drivers/soc/dove/pmu.c b/drivers/soc/dove/pmu.c index 052aecf29893..429e32cab55a 100644 --- a/drivers/soc/dove/pmu.c +++ b/drivers/soc/dove/pmu.c @@ -305,6 +305,49 @@ static int __init dove_init_pmu_irq(struct pmu_data *pmu, int irq) return 0; } +int __init dove_init_pmu_legacy(const struct dove_pmu_initdata *initdata) +{ + const struct dove_pmu_domain_initdata *domain_initdata; + struct pmu_data *pmu; + int ret; + + pmu = kzalloc(sizeof(*pmu), GFP_KERNEL); + if (!pmu) + return -ENOMEM; + + spin_lock_init(&pmu->lock); + pmu->pmc_base = initdata->pmc_base; + pmu->pmu_base = initdata->pmu_base; + + pmu_reset_init(pmu); + for (domain_initdata = initdata->domains; domain_initdata->name; + domain_initdata++) { + struct pmu_domain *domain; + + domain = kzalloc(sizeof(*domain), GFP_KERNEL); + if (domain) { + domain->pmu = pmu; + domain->pwr_mask = domain_initdata->pwr_mask; + domain->rst_mask = domain_initdata->rst_mask; + domain->iso_mask = domain_initdata->iso_mask; + domain->base.name = domain_initdata->name; + + __pmu_domain_register(domain, NULL); + } + } + pm_genpd_poweroff_unused(); + + ret = dove_init_pmu_irq(pmu, initdata->irq); + if (ret) + pr_err("dove_init_pmu_irq() failed: %d\n", ret); + + if (pmu->irq_domain) + irq_domain_associate_many(pmu->irq_domain, IRQ_DOVE_PMU_START, + 0, NR_PMU_IRQS); + + return 0; +} + /* * pmu: power-manager@d0000 { * compatible = "marvell,dove-pmu"; diff --git a/include/linux/soc/dove/pmu.h b/include/linux/soc/dove/pmu.h index 9c99f84bcc0e..431dfac595e7 100644 --- a/include/linux/soc/dove/pmu.h +++ b/include/linux/soc/dove/pmu.h @@ -1,6 +1,24 @@ #ifndef LINUX_SOC_DOVE_PMU_H #define LINUX_SOC_DOVE_PMU_H +#include + +struct dove_pmu_domain_initdata { + u32 pwr_mask; + u32 rst_mask; + u32 iso_mask; + const char *name; +}; + +struct dove_pmu_initdata { + void __iomem *pmc_base; + void __iomem *pmu_base; + int irq; + const struct dove_pmu_domain_initdata *domains; +}; + +int dove_init_pmu_legacy(const struct dove_pmu_initdata *); + int dove_init_pmu(void); #endif