From patchwork Mon Oct 26 11:10:46 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tony Lindgren X-Patchwork-Id: 11856727 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=-10.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, UNWANTED_LANGUAGE_BODY,URIBL_BLOCKED,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 9C12BC4363A for ; Mon, 26 Oct 2020 11:13:08 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 4B70922263 for ; Mon, 26 Oct 2020 11:13:08 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="DBrig1Ft" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 4B70922263 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=atomide.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=merlin.20170209; h=Sender:Content-Transfer-Encoding: Content-Type:Cc:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To:Message-Id:Date: Subject:To:From:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=Qceky7KHtqmMCTcLSH/0Vh/WH1esYWLeeoRAi4ICYN4=; b=DBrig1FtQZ6wcLHvbHjqia0xK 5zdz7muQcv0u1gbthFokLUZ5j4/Etu712Tl+d5DufdVU9ttqYNor6sM5ki49C802OWDxN2M74aETk cHscIyUgox/1yD7eqVYunb4dX9AUR+Qn2b0A0v+KjYvovBfPeDwmFjP0QYH277lff3mfZ7onEXwIi wq6ygPx3hzyzPUq0C19RyVHuQgCtvfTCn8SI1HpcQGSQR8rdTOw1XZ5wtml+A6Dh14EDCrkEp+sEh zRFUc/GKcoCVcaKL3tuBNWetSEAJu1pAvJGgKuTRY72C5buHdi/OrFm3nbtAQM112BzPdaw7KUQHB rwEmwhgTQ==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1kX0Pj-0007Jd-9O; Mon, 26 Oct 2020 11:11:47 +0000 Received: from muru.com ([72.249.23.125]) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1kX0PI-0007AQ-FT for linux-arm-kernel@lists.infradead.org; Mon, 26 Oct 2020 11:11:22 +0000 Received: from hillo.muru.com (localhost [127.0.0.1]) by muru.com (Postfix) with ESMTP id 3B65A80AA; Mon, 26 Oct 2020 11:11:22 +0000 (UTC) From: Tony Lindgren To: linux-omap@vger.kernel.org Subject: [PATCH 6/9] soc: ti: omap-prm: Add pm_clk for genpd Date: Mon, 26 Oct 2020 13:10:46 +0200 Message-Id: <20201026111049.54835-7-tony@atomide.com> X-Mailer: git-send-email 2.29.1 In-Reply-To: <20201026111049.54835-1-tony@atomide.com> References: <20201026111049.54835-1-tony@atomide.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20201026_071120_676708_596218C5 X-CRM114-Status: GOOD ( 17.42 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Nishanth Menon , Tero Kristo , Grygorii Strashko , Dave Gerlach , Stephen Boyd , Keerthy , Michael Turquette , Santosh Shilimkar , linux-remoteproc@vger.kernel.org, linux-kernel@vger.kernel.org, "Andrew F . Davis" , Peter Ujfalusi , Faiz Abbas , Bjorn Andersson , Philipp Zabel , Greg Kroah-Hartman , linux-clk@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Roger Quadros Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org In order to probe l3 and l4 interconnects with simple-pm-bus, we want genpd to manage the clocks for the interconnects. For interconnect target modules, we already have ti-sysc manage the clocks so let's skipe managing clocks for ti-sysc modules. Cc: Santosh Shilimkar Signed-off-by: Tony Lindgren --- drivers/soc/ti/omap_prm.c | 37 +++++++++++++++++++++++++++++++++++++ 1 file changed, 37 insertions(+) diff --git a/drivers/soc/ti/omap_prm.c b/drivers/soc/ti/omap_prm.c --- a/drivers/soc/ti/omap_prm.c +++ b/drivers/soc/ti/omap_prm.c @@ -7,6 +7,7 @@ */ #include +#include #include #include #include @@ -14,6 +15,7 @@ #include #include #include +#include #include #include #include @@ -325,6 +327,35 @@ static int omap_prm_domain_power_off(struct generic_pm_domain *domain) return 0; } +/* + * Note that ti-sysc already manages the module clocks separately so + * no need to manage those. Interconnect instances need clocks managed + * for simple-pm-bus. + */ +static int omap_prm_domain_attach_clock(struct device *dev) +{ + struct device_node *np = dev->of_node; + int error; + + if (of_device_is_compatible(np, "ti-sysc")) + return 0; + + if (!of_property_read_bool(np, "clocks")) + return 0; + + error = pm_clk_create(dev); + if (error) + return error; + + error = of_pm_clk_add_clks(dev); + if (error < 0) { + pm_clk_destroy(dev); + return error; + } + + return 0; +} + static int omap_prm_domain_attach_dev(struct generic_pm_domain *domain, struct device *dev) { @@ -349,6 +380,10 @@ static int omap_prm_domain_attach_dev(struct generic_pm_domain *domain, genpd_data = dev_gpd_data(dev); genpd_data->data = NULL; + ret = omap_prm_domain_attach_clock(dev); + if (ret) + return ret; + return 0; } @@ -357,6 +392,7 @@ static void omap_prm_domain_detach_dev(struct generic_pm_domain *domain, { struct generic_pm_domain_data *genpd_data; + pm_clk_destroy(dev); genpd_data = dev_gpd_data(dev); genpd_data->data = NULL; } @@ -393,6 +429,7 @@ static int omap_prm_domain_init(struct device *dev, struct omap_prm *prm) prmd->pd.power_off = omap_prm_domain_power_off; prmd->pd.attach_dev = omap_prm_domain_attach_dev; prmd->pd.detach_dev = omap_prm_domain_detach_dev; + prmd->pd.flags = GENPD_FLAG_PM_CLK; pm_genpd_init(&prmd->pd, NULL, true); error = of_genpd_add_provider_simple(np, &prmd->pd);