From patchwork Tue May 22 06:28:51 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?S=C3=A9bastien_Szymanski?= X-Patchwork-Id: 10417353 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 98C5C6016C for ; Tue, 22 May 2018 06:18:47 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 8817027F3E for ; Tue, 22 May 2018 06:18:47 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 7B96C2867F; Tue, 22 May 2018 06:18:47 +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=-2.9 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI 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 1580727F3E for ; Tue, 22 May 2018 06:18:46 +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: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:In-Reply-To:References: List-Owner; bh=4RJpGWTZ/tjpWMzYNZpw7n5s5pgJFrlYEgRA1942C88=; b=MtQTG4A8ATL4Pg sMN21XlDbLWVlZyiV74fgdjTy/iPWJk3sXALgJFjihrQgJNBhoHc5iTm0/EJiz7IihDJl3zymwbzQ WLgCAiDHvZO61coJoI59+DY0I+V3ACdgY4uQj2v7C6Ai4urrbxsVwdV8HAs8FPWmscXpzieTo/oi3 UXUOTjQSOnTTRAe8t693IFsyRrTzOgY9aVu+IzST13FUUq7FpzjPwh/ayV6VM6eZubvY9V+w88vdp mmTdeSEIO7bJCI60TabQuOhJhGAUA8rwpEzkAJYirXcbDEcHpgXcAWbSE4ezN1hh+OxKpV1UOz4hi yiZZBgREMMWJs3/S7gjQ==; 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 1fL0d7-0004kg-19; Tue, 22 May 2018 06:18:41 +0000 Received: from 6.mo5.mail-out.ovh.net ([178.32.119.138]) by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1fL0d3-0004iu-7x for linux-arm-kernel@lists.infradead.org; Tue, 22 May 2018 06:18:39 +0000 Received: from player797.ha.ovh.net (unknown [10.109.122.36]) by mo5.mail-out.ovh.net (Postfix) with ESMTP id A9D4F1B0183 for ; Tue, 22 May 2018 08:18:21 +0200 (CEST) Received: from localhost.localdomain (22.220.201.77.rev.sfr.net [77.201.220.22]) (Authenticated sender: sebastien.szymanski@armadeus.com) by player797.ha.ovh.net (Postfix) with ESMTPSA id A15C52E00B2; Tue, 22 May 2018 08:18:06 +0200 (CEST) From: =?UTF-8?q?S=C3=A9bastien=20Szymanski?= To: linux-arm-kernel@lists.infradead.org Subject: [PATCH v3 1/3] cpufreq: imx6q: check speed grades for i.MX6ULL Date: Tue, 22 May 2018 08:28:51 +0200 Message-Id: <20180522062853.24799-1-sebastien.szymanski@armadeus.com> X-Mailer: git-send-email 2.16.1 MIME-Version: 1.0 X-Ovh-Tracer-Id: 13126867014484710652 X-VR-SPAMSTATE: OK X-VR-SPAMSCORE: -100 X-VR-SPAMCAUSE: gggruggvucftvghtrhhoucdtuddrgedthedrgedtgddutdegucetufdoteggodetrfdotffvucfrrhhofhhilhgvmecuqfggjfdpvefjgfevmfevgfenuceurghilhhouhhtmecufedttdenucesvcftvggtihhpihgvnhhtshculddquddttddm X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20180521_231837_434560_E6A86288 X-CRM114-Status: GOOD ( 14.31 ) 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: Mark Rutland , devicetree@vger.kernel.org, linux-pm@vger.kernel.org, Viresh Kumar , "Rafael J . Wysocki" , linux-kernel@vger.kernel.org, Stefan Agner , Rob Herring , Sascha Hauer , Fabio Estevam , Shawn Guo 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 Check the max speed supported from the fuses for i.MX6ULL and update the operating points table accordingly. Signed-off-by: Sébastien Szymanski Acked-by: Viresh Kumar Tested-by: Stefan Agner Reviewed-by: Stefan Agner Reviewed-by: Fabio Estevam Acked-by: Shawn Guo --- Changes for v3: - none Changes for v2: - none drivers/cpufreq/imx6q-cpufreq.c | 29 +++++++++++++++++++++++------ 1 file changed, 23 insertions(+), 6 deletions(-) diff --git a/drivers/cpufreq/imx6q-cpufreq.c b/drivers/cpufreq/imx6q-cpufreq.c index 83cf631fc9bc..f094687cae52 100644 --- a/drivers/cpufreq/imx6q-cpufreq.c +++ b/drivers/cpufreq/imx6q-cpufreq.c @@ -266,6 +266,8 @@ static void imx6q_opp_check_speed_grading(struct device *dev) } #define OCOTP_CFG3_6UL_SPEED_696MHZ 0x2 +#define OCOTP_CFG3_6ULL_SPEED_792MHZ 0x2 +#define OCOTP_CFG3_6ULL_SPEED_900MHZ 0x3 static void imx6ul_opp_check_speed_grading(struct device *dev) { @@ -287,16 +289,30 @@ static void imx6ul_opp_check_speed_grading(struct device *dev) * Speed GRADING[1:0] defines the max speed of ARM: * 2b'00: Reserved; * 2b'01: 528000000Hz; - * 2b'10: 696000000Hz; - * 2b'11: Reserved; + * 2b'10: 696000000Hz on i.MX6UL, 792000000Hz on i.MX6ULL; + * 2b'11: 900000000Hz on i.MX6ULL only; * We need to set the max speed of ARM according to fuse map. */ val = readl_relaxed(base + OCOTP_CFG3); val >>= OCOTP_CFG3_SPEED_SHIFT; val &= 0x3; - if (val != OCOTP_CFG3_6UL_SPEED_696MHZ) - if (dev_pm_opp_disable(dev, 696000000)) - dev_warn(dev, "failed to disable 696MHz OPP\n"); + + if (of_machine_is_compatible("fsl,imx6ul")) { + if (val != OCOTP_CFG3_6UL_SPEED_696MHZ) + if (dev_pm_opp_disable(dev, 696000000)) + dev_warn(dev, "failed to disable 696MHz OPP\n"); + } + + if (of_machine_is_compatible("fsl,imx6ull")) { + if (val != OCOTP_CFG3_6ULL_SPEED_792MHZ) + if (dev_pm_opp_disable(dev, 792000000)) + dev_warn(dev, "failed to disable 792MHz OPP\n"); + + if (val != OCOTP_CFG3_6ULL_SPEED_900MHZ) + if (dev_pm_opp_disable(dev, 900000000)) + dev_warn(dev, "failed to disable 900MHz OPP\n"); + } + iounmap(base); put_node: of_node_put(np); @@ -356,7 +372,8 @@ static int imx6q_cpufreq_probe(struct platform_device *pdev) goto put_reg; } - if (of_machine_is_compatible("fsl,imx6ul")) + if (of_machine_is_compatible("fsl,imx6ul") || + of_machine_is_compatible("fsl,imx6ull")) imx6ul_opp_check_speed_grading(cpu_dev); else imx6q_opp_check_speed_grading(cpu_dev);