From patchwork Mon May 20 10:47:03 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nicolas Saenz Julienne X-Patchwork-Id: 10950853 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id E55F517E0 for ; Mon, 20 May 2019 10:47:57 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id D1FED28696 for ; Mon, 20 May 2019 10:47:57 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id C651C287C1; Mon, 20 May 2019 10:47:57 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.2 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 74F8B28696 for ; Mon, 20 May 2019 10:47:57 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.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=mCxOTBzfHiuI6M9SXyyXOf+XH7MBXY1qnAA81jU5/m0=; b=D3Aef2ajh2vhul fEZDER32Bo3ORDdFHibIIBPrVuwNX7EMDB0dCpIo7aG3kOS4Rn9lA8EPjoHSHImB3sTWHNA/OQTpC X5KfeyTEEg+sQ/4YLM5X6s69+V2DrONBm2BP6+nPEpPR1b5Oa/PyRigWFJPtY/suEiqHqYRnRSu4V Bhv3vTXcqeu0JsTg7OV2xoPalCT27Y1xHuOBjtbz11KI/y20fRes6c8ne8rxy1yJJlluY2nv+Duc3 bxUHhrrMvl5cHy1DnIhtdZJcXnKUGNhkXVhVD95dBQ0Xt3130hv9kzgM/ilJ5/OMF9dO/Zb2UYyzY krS502X50ub9ZGHWyNmw==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1hSfpf-0000km-Rd; Mon, 20 May 2019 10:47:51 +0000 Received: from mx2.suse.de ([195.135.220.15] helo=mx1.suse.de) by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1hSfpU-0000QN-4t; Mon, 20 May 2019 10:47:43 +0000 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.220.254]) by mx1.suse.de (Postfix) with ESMTP id 91BADAFD2; Mon, 20 May 2019 10:47:35 +0000 (UTC) From: Nicolas Saenz Julienne To: stefan.wahren@i2se.com, Florian Fainelli , Ray Jui , Scott Branden , bcm-kernel-feedback-list@broadcom.com, Eric Anholt Subject: [RFC v2 1/5] clk: bcm2835: set CLK_GET_RATE_NOCACHE on CPU clocks Date: Mon, 20 May 2019 12:47:03 +0200 Message-Id: <20190520104708.11980-2-nsaenzjulienne@suse.de> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20190520104708.11980-1-nsaenzjulienne@suse.de> References: <20190520104708.11980-1-nsaenzjulienne@suse.de> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190520_034740_330997_CE1AC184 X-CRM114-Status: GOOD ( 12.88 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-arm-kernel@lists.infradead.org, ptesarik@suse.com, sboyd@kernel.org, viresh.kumar@linaro.org, mturquette@baylibre.com, linux-pm@vger.kernel.org, rjw@rjwysocki.net, linux-kernel@vger.kernel.org, Nicolas Saenz Julienne , linux-rpi-kernel@lists.infradead.org, linux-clk@vger.kernel.org, mbrugger@suse.de, ssuloev@orpaltech.com Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP Raspberry Pi's firmware is responsible for updating the cpu clocks and pll. This makes sure we get the right rates anytime. Signed-off-by: Nicolas Saenz Julienne Acked-by: Stefan Wahren --- drivers/clk/bcm/clk-bcm2835.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/clk/bcm/clk-bcm2835.c b/drivers/clk/bcm/clk-bcm2835.c index 770bb01f523e..c2772dfb155a 100644 --- a/drivers/clk/bcm/clk-bcm2835.c +++ b/drivers/clk/bcm/clk-bcm2835.c @@ -411,6 +411,7 @@ struct bcm2835_pll_data { u32 reference_enable_mask; /* Bit in CM_LOCK to indicate when the PLL has locked. */ u32 lock_mask; + u32 flags; const struct bcm2835_pll_ana_bits *ana; @@ -1299,7 +1300,7 @@ static struct clk_hw *bcm2835_register_pll(struct bcm2835_cprman *cprman, init.num_parents = 1; init.name = data->name; init.ops = &bcm2835_pll_clk_ops; - init.flags = CLK_IGNORE_UNUSED; + init.flags = data->flags | CLK_IGNORE_UNUSED; pll = kzalloc(sizeof(*pll), GFP_KERNEL); if (!pll) @@ -1660,6 +1661,7 @@ static const struct bcm2835_clk_desc clk_desc_array[] = { .ana_reg_base = A2W_PLLB_ANA0, .reference_enable_mask = A2W_XOSC_CTRL_PLLB_ENABLE, .lock_mask = CM_LOCK_FLOCKB, + .flags = CLK_GET_RATE_NOCACHE, .ana = &bcm2835_ana_default, @@ -1674,7 +1676,7 @@ static const struct bcm2835_clk_desc clk_desc_array[] = { .load_mask = CM_PLLB_LOADARM, .hold_mask = CM_PLLB_HOLDARM, .fixed_divider = 1, - .flags = CLK_SET_RATE_PARENT), + .flags = CLK_SET_RATE_PARENT | CLK_GET_RATE_NOCACHE), /* * PLLC is the core PLL, used to drive the core VPU clock.