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 X-Spam-Level: X-Spam-Status: No, score=-9.1 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_PASS,USER_AGENT_GIT autolearn=ham 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 BBE59C0044C for ; Tue, 13 Nov 2018 11:17:11 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 83716223D0 for ; Tue, 13 Nov 2018 11:17:11 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=amarulasolutions.com header.i=@amarulasolutions.com header.b="ToJirpXf" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 83716223D0 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=amarulasolutions.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732553AbeKMVOs (ORCPT ); Tue, 13 Nov 2018 16:14:48 -0500 Received: from mail-pl1-f195.google.com ([209.85.214.195]:43037 "EHLO mail-pl1-f195.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1732525AbeKMVOr (ORCPT ); Tue, 13 Nov 2018 16:14:47 -0500 Received: by mail-pl1-f195.google.com with SMTP id g59-v6so5840924plb.10 for ; Tue, 13 Nov 2018 03:17:09 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amarulasolutions.com; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=Qbm/NIYuuBGisaoOf8xEjZz2GqJiY+po/xAr8VTc9Ho=; b=ToJirpXfC1n3gWkryiJS7jnKRWpzntkBX5uluzEnPwvJIU74yr+59gNpfe4mkRJsr6 ZQy5ESBGNxw5piaq9yvaXKHONhOWo5FwD/GIy/35Wcz5fsEQXlRk5Y84iuWdjHRgs6Gi s0utKmQauGwjiO5oGX1Dkw79QTh+P4obBluIk= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=Qbm/NIYuuBGisaoOf8xEjZz2GqJiY+po/xAr8VTc9Ho=; b=cA30+twFHNcvIbOLIZplpN80iVlCHy8pVyRnZmC0rqRh6JxHNMbmGyDE1KZmZFSb0m CDqrO6v1YHcGdssC5SDt7trJYPr8DT6EMMZjZyoj9zB8fCf9TDNf9aLDxNWu20m18Q0T grONBkc9otAP4K5BKPEcp2zaVrrDM3UD8ZS+edcNSZSZhA53ADynQiRimHayyzFLqfBK HVZE/clpujoraZV9CIbClLtqkN8IZdfGAV1g5LD9flFVMRf61hR5n5OwzmEN5JLaZsta 8m2enoe9Rxrdk0pJqATr07hL6YJow4eKv9LDKCVVaT2e8vi+eNg+l4pbQ0xvASmuhGez 5/mg== X-Gm-Message-State: AGRZ1gLBOwBiuj24J9lBOg9ZBpHIUjfEYeKw8cwy5gZV0S0RDDMXk+l+ AJNo7Vry9yi7edEHk7HzDJBmYw== X-Google-Smtp-Source: AJdET5f30k2tAIaqToyDxrKODYMga/iJ046M4/2dIT577ikT4Iv4sylXZhUrbjRpWQ1GftQPeTw08Q== X-Received: by 2002:a17:902:3103:: with SMTP id w3-v6mr4770500plb.18.1542107828971; Tue, 13 Nov 2018 03:17:08 -0800 (PST) Received: from localhost.localdomain ([2401:4900:3670:3f11:bc71:2ef7:4a39:e260]) by smtp.gmail.com with ESMTPSA id 27-v6sm28531377pfm.36.2018.11.13.03.17.03 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 13 Nov 2018 03:17:08 -0800 (PST) From: Jagan Teki To: Maxime Ripard , Chen-Yu Tsai , Icenowy Zheng , Jernej Skrabec , Vasily Khoruzhick , Rob Herring , Mark Rutland , Catalin Marinas , Will Deacon , David Airlie , dri-devel@lists.freedesktop.org, Michael Turquette , Stephen Boyd , linux-clk@vger.kernel.org, Michael Trimarchi , linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-sunxi@googlegroups.com, linux-amarula@amarulasolutions.com Cc: Jagan Teki Subject: [PATCH v4 03/26] clk: sunxi-ng: Add check for maximum rate to NKM PLLs Date: Tue, 13 Nov 2018 16:46:10 +0530 Message-Id: <20181113111633.20189-4-jagan@amarulasolutions.com> X-Mailer: git-send-email 2.18.0.321.gffc6fa0e3 In-Reply-To: <20181113111633.20189-1-jagan@amarulasolutions.com> References: <20181113111633.20189-1-jagan@amarulasolutions.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Some NKM PLLs, frequency can be set above PLL working range. Add a constraint for maximum supported rate. This way, drivers can specify which is maximum allowed rate for PLL. Signed-off-by: Jagan Teki Acked-by: Stephen Boyd --- drivers/clk/sunxi-ng/ccu_nkm.c | 3 +++ drivers/clk/sunxi-ng/ccu_nkm.h | 1 + 2 files changed, 4 insertions(+) diff --git a/drivers/clk/sunxi-ng/ccu_nkm.c b/drivers/clk/sunxi-ng/ccu_nkm.c index 6b5ad990f802..b8b66cdd30bf 100644 --- a/drivers/clk/sunxi-ng/ccu_nkm.c +++ b/drivers/clk/sunxi-ng/ccu_nkm.c @@ -128,6 +128,9 @@ static unsigned long ccu_nkm_round_rate(struct ccu_mux_internal *mux, if (rate < nkm->min_rate) return nkm->min_rate; + if (nkm->max_rate && rate > nkm->max_rate) + return nkm->max_rate; + ccu_nkm_find_best(*parent_rate, rate, &_nkm); rate = *parent_rate * _nkm.n * _nkm.k / _nkm.m; diff --git a/drivers/clk/sunxi-ng/ccu_nkm.h b/drivers/clk/sunxi-ng/ccu_nkm.h index ff5bd00f429f..c82590481188 100644 --- a/drivers/clk/sunxi-ng/ccu_nkm.h +++ b/drivers/clk/sunxi-ng/ccu_nkm.h @@ -36,6 +36,7 @@ struct ccu_nkm { unsigned int fixed_post_div; unsigned int min_rate; + unsigned int max_rate; struct ccu_common common; }; -- 2.18.0.321.gffc6fa0e3