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,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE, SPF_PASS,T_DKIMWL_WL_HIGH,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 6E2D3C28CC1 for ; Sat, 1 Jun 2019 13:27:19 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 43671273E5 for ; Sat, 1 Jun 2019 13:27:19 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1559395639; bh=NXRP5iIORsVwjkHjS8fPpUcqxL+R+Gvk7tie5kKBxM4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=AuGeOy54cad+txyGCnVQWg+B63nvmncmACbE00pOwMug8e4GB34/pnsxP/Vp69lqp VblcvO+5n9xc9Ok1yUt+8s7sYHTTSCm3xLO8qtw8EtSTwyZuhMNm8jnr+jg1DUhIuY j18XWkxW2pQNXPYbeHJW6C4gsQf9w/nOKfMnGhek= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729932AbfFAN1R (ORCPT ); Sat, 1 Jun 2019 09:27:17 -0400 Received: from mail.kernel.org ([198.145.29.99]:57676 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729231AbfFAN1F (ORCPT ); Sat, 1 Jun 2019 09:27:05 -0400 Received: from sasha-vm.mshome.net (c-73-47-72-35.hsd1.nh.comcast.net [73.47.72.35]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 9021F273BD; Sat, 1 Jun 2019 13:27:03 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1559395624; bh=NXRP5iIORsVwjkHjS8fPpUcqxL+R+Gvk7tie5kKBxM4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=v9NYSGxdwpMJtJYU2jRqzITEc3bqKxMV/GyJRBgDxRp+MDTRUIEvVENOY6eUqEY5N rV7UyBq0171TtCbolOIhchNdqXLLtUrrdMDAK+TGwe1ds125LLawfptbQgY7b0Vv5h 1eVFWAyrK6sT+YwE1rGULEfPG3fhxiC6zyNHwA1s= From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Andrey Smirnov , Lucas Stach , Angus Ainslie , Chris Healy , Fabio Estevam , Shawn Guo , linux-arm-kernel@lists.infradead.org, Adam Ford , Sasha Levin , devicetree@vger.kernel.org Subject: [PATCH AUTOSEL 4.4 37/56] ARM: dts: imx6qdl: Specify IMX6QDL_CLK_IPG as "ipg" clock to SDMA Date: Sat, 1 Jun 2019 09:25:41 -0400 Message-Id: <20190601132600.27427-37-sashal@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190601132600.27427-1-sashal@kernel.org> References: <20190601132600.27427-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Andrey Smirnov [ Upstream commit b14c872eebc501b9640b04f4a152df51d6eaf2fc ] Since 25aaa75df1e6 SDMA driver uses clock rates of "ipg" and "ahb" clock to determine if it needs to configure the IP block as operating at 1:1 or 1:2 clock ratio (ACR bit in SDMAARM_CONFIG). Specifying both clocks as IMX6QDL_CLK_SDMA results in driver incorrectly thinking that ratio is 1:1 which results in broken SDMA funtionality(this at least breaks RAVE SP serdev driver on RDU2). Fix the code to specify IMX6QDL_CLK_IPG as "ipg" clock for SDMA, to avoid detecting incorrect clock ratio. Signed-off-by: Andrey Smirnov Reviewed-by: Lucas Stach Cc: Angus Ainslie (Purism) Cc: Chris Healy Cc: Lucas Stach Cc: Fabio Estevam Cc: Shawn Guo Cc: linux-arm-kernel@lists.infradead.org Cc: linux-kernel@vger.kernel.org Tested-by: Adam Ford Signed-off-by: Shawn Guo Signed-off-by: Sasha Levin --- arch/arm/boot/dts/imx6qdl.dtsi | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/boot/dts/imx6qdl.dtsi b/arch/arm/boot/dts/imx6qdl.dtsi index e6af41c4bbc12..3992b8ea1c48f 100644 --- a/arch/arm/boot/dts/imx6qdl.dtsi +++ b/arch/arm/boot/dts/imx6qdl.dtsi @@ -853,7 +853,7 @@ compatible = "fsl,imx6q-sdma", "fsl,imx35-sdma"; reg = <0x020ec000 0x4000>; interrupts = <0 2 IRQ_TYPE_LEVEL_HIGH>; - clocks = <&clks IMX6QDL_CLK_SDMA>, + clocks = <&clks IMX6QDL_CLK_IPG>, <&clks IMX6QDL_CLK_SDMA>; clock-names = "ipg", "ahb"; #dma-cells = <3>; -- 2.20.1