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=-17.6 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,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 6A9F7C433E0 for ; Mon, 8 Feb 2021 18:05:34 +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 2908D64E54 for ; Mon, 8 Feb 2021 18:05:34 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 2908D64E54 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org 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=dHNen1OaE3B2+hA4YUzXtmabUphCaB0sVK8iY2QQcKE=; b=u1dNRUkBMa26AppmgH90QieKJ Nny56EZWToXf2RE08Wnk3jeVaIru5BTzk4zY+92zNDM2bc3XORaeQhoaM7BGIGQ20TlrWUJh340i4 GyW/n9g3+xyHdG3gxXP9E3q4M9BKjQrMuxqOmPDr0JPMUqTa9FmYp9dNkuupX6BOonEIl9Xo8mL5B BplOCHCuZNwwiOTlX/J/JkPpd0UlZ/9/M9aLonuHhsJaztTtpcxCD5fH2KCB0n1dpubqu3Kvo14S7 ZR1vUQ/6SAYBgYmMPxMULSMaskanZCE94BHmRXqmZphWIrstKAPBDbv2A8BBnm3ggFlykv3FjSXXW WvT9OpS+w==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1l9Asw-0001EQ-EV; Mon, 08 Feb 2021 18:03:44 +0000 Received: from mail.kernel.org ([198.145.29.99]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1l9ApR-0007Xs-Sh for linux-arm-kernel@lists.infradead.org; Mon, 08 Feb 2021 18:00:07 +0000 Received: by mail.kernel.org (Postfix) with ESMTPSA id 0F59064EF4; Mon, 8 Feb 2021 18:00:03 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1612807204; bh=8olhe+kd+LG8lLR2OlrkeSqcVmhre88z3JtLm/Ojh7o=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=uvPpaSaZXwWAO3KH2W7tMs9Red09CZ8uUpR6B5zutQAiTdFynPoFrX50EuJw8I0Wn sxi5TBjPQzxoz+bC7L0wdLchrBJn5M1xB4K/08bxEBGnjPAx++euDr6qpGqY43eZN2 RS9L3OaG69MqlSVux3wx3KWx2/tp8XJlW4Nkgr9oJrox5VmYMQhTWcML7C+R+9FV3E H/ue+ED1wdRoZLau+0S/MownwfZAV7m1NXAvpCAFDA7vvxiRcLEvKu3//t45Ic3whZ sP7KG3YhWTZRHcXWxYSDFBcr+zO3BwmekbU9+h7cP3aOPJX/f3/nhNiKh8qtb0Xo6S krrgUEHCwMyfw== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Subject: [PATCH AUTOSEL 4.9 3/4] ARM: dts: lpc32xx: Revert set default clock rate of HCLK PLL Date: Mon, 8 Feb 2021 12:59:59 -0500 Message-Id: <20210208180000.2092497-3-sashal@kernel.org> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20210208180000.2092497-1-sashal@kernel.org> References: <20210208180000.2092497-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210208_130006_123016_F573A13A X-CRM114-Status: GOOD ( 11.35 ) 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: Sasha Levin , devicetree@vger.kernel.org, Alexandre Belloni , Arnd Bergmann , Gregory CLEMENT , linux-arm-kernel@lists.infradead.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: Alexandre Belloni [ Upstream commit 5638159f6d93b99ec9743ac7f65563fca3cf413d ] This reverts commit c17e9377aa81664d94b4f2102559fcf2a01ec8e7. The lpc32xx clock driver is not able to actually change the PLL rate as this would require reparenting ARM_CLK, DDRAM_CLK, PERIPH_CLK to SYSCLK, then stop the PLL, update the register, restart the PLL and wait for the PLL to lock and finally reparent ARM_CLK, DDRAM_CLK, PERIPH_CLK to HCLK PLL. Currently, the HCLK driver simply updates the registers but this has no real effect and all the clock rate calculation end up being wrong. This is especially annoying for the peripheral (e.g. UARTs, I2C, SPI). Signed-off-by: Alexandre Belloni Tested-by: Gregory CLEMENT Link: https://lore.kernel.org/r/20210203090320.GA3760268@piout.net' Signed-off-by: Arnd Bergmann Signed-off-by: Sasha Levin --- arch/arm/boot/dts/lpc32xx.dtsi | 3 --- 1 file changed, 3 deletions(-) diff --git a/arch/arm/boot/dts/lpc32xx.dtsi b/arch/arm/boot/dts/lpc32xx.dtsi index 2802c9565b6ca..976a75a4eb2c6 100644 --- a/arch/arm/boot/dts/lpc32xx.dtsi +++ b/arch/arm/boot/dts/lpc32xx.dtsi @@ -323,9 +323,6 @@ clk: clock-controller@0 { clocks = <&xtal_32k>, <&xtal>; clock-names = "xtal_32k", "xtal"; - - assigned-clocks = <&clk LPC32XX_CLK_HCLK_PLL>; - assigned-clock-rates = <208000000>; }; }; -- 2.27.0 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel