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=-4.0 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED autolearn=no 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 66E53C43331 for ; Fri, 6 Sep 2019 17:24:59 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 3B01220838 for ; Fri, 6 Sep 2019 17:24:59 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="jYfgVxiF"; dkim=fail reason="signature verification failed" (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="2wTQ0bRk" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 3B01220838 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+infradead-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=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:Message-Id:Date:Subject:From:To: References:In-Reply-To:MIME-Version:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=1cBBIdJoF6snkjONMtEMMWqy7LkqOl39y053NBJ3cmw=; b=jYfgVxiFXgFJvO Es1eFwk2698lBqrFdZ3RRYW/UyLrLcuX5ycQUy2lIZXUh8z+HKyHuG419BN6pqNqol8t/7N/WM8Go fmCpXS4TKgvc07ndE0KApFqcGRECJGh+HSdhOX1ShpmPw9vDRIlmMnDnRAORW3ow2HFsFOKsblYwG Dy+wgvzA8d6/Ggh4YlmmtrkjSf84pS+kSSILmOOoj3YpYhUi/yTjpOfanoRJfcfJTHDz8CMQ3h+DL KapBzoSioLVt8NipNGYG+f3Y7uiP9rvM/dtIiVPea4xg+Bta7roxC4fxCLdFSYhzfSg13TUMGEuFb OHt3ScORw66wy2H/SpFA==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92 #3 (Red Hat Linux)) id 1i6Hyh-0000KV-Tg; Fri, 06 Sep 2019 17:24:55 +0000 Received: from mail.kernel.org ([198.145.29.99]) by bombadil.infradead.org with esmtps (Exim 4.92 #3 (Red Hat Linux)) id 1i6Hyf-0000K7-7v for linux-arm-kernel@lists.infradead.org; Fri, 06 Sep 2019 17:24:54 +0000 Received: from kernel.org (unknown [104.132.0.74]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id D1ED620838; Fri, 6 Sep 2019 17:24:52 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1567790692; bh=VFA2y6aGSEi1O7IjtmDRuhV4iW9oDnoUYHFJr+NnkZw=; h=In-Reply-To:References:To:From:Cc:Subject:Date:From; b=2wTQ0bRk+dT5wClH2j/LUxzHRh/DqGD52/v9A6Ct++U/etB+2/+3zj5FvvNZCSqFB vKsJpAU8WI43KaV3kjS3zqr7kwZL2KS9jiiANcjo2eqH+QL7lQhtad4nvReOwtFlvL infNYS+DXT/9y0hmiCEmYGsUtd2SfQHXH3liB610= MIME-Version: 1.0 In-Reply-To: References: To: Leonard Crestez , Peng Fan , Shawn Guo From: Stephen Boyd Subject: Re: [PATCH] clk: imx: pll14xx: Fix quick switch of S/K parameter User-Agent: alot/0.8.1 Date: Fri, 06 Sep 2019 10:24:51 -0700 Message-Id: <20190906172452.D1ED620838@mail.kernel.org> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190906_102453_305268_F31809AB X-CRM114-Status: GOOD ( 10.40 ) 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: Dong Aisheng , Jacky Bai , Michael Turquette , linux-clk@vger.kernel.org, linux-imx@nxp.com, Viorel Suman , Fabio Estevam , Daniel Baluta , kernel@pengutronix.de, linux-arm-kernel@lists.infradead.org, Abel Vesa Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org Quoting Leonard Crestez (2019-09-04 02:49:18) > The PLL14xx on imx8m can change the S and K parameter without requiring > a reset and relock of the whole PLL. > > Fix clk_pll144xx_mp_change register reading and use it for pll1443 as > well since no reset+relock is required on K changes either. > > Signed-off-by: Leonard Crestez > --- > drivers/clk/imx/clk-pll14xx.c | 40 +++++++---------------------------- > 1 file changed, 8 insertions(+), 32 deletions(-) > > The PLLs are currently table-based and none of the entries differ only > in S/K so further work would be required to make use of this. The > prospective user is audio doing tiny freq adjustments and there is no > standard API for that. sub-Hz adjustments? > > Lacking users is not a good reason to carry broken code around. Maybe add a Fixes tag so if anyone wants to use it in LTS kernels there might be a chance that they'll find this patch mention code they're using. _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel