From patchwork Wed Jul 21 20:46:48 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lucas Stach X-Patchwork-Id: 484067 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=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, 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 C224DC6377C for ; Wed, 21 Jul 2021 20:47:15 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id AD54D61241 for ; Wed, 21 Jul 2021 20:47:15 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230187AbhGUUGi (ORCPT ); Wed, 21 Jul 2021 16:06:38 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58724 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229591AbhGUUGh (ORCPT ); Wed, 21 Jul 2021 16:06:37 -0400 Received: from metis.ext.pengutronix.de (metis.ext.pengutronix.de [IPv6:2001:67c:670:201:290:27ff:fe1d:cc33]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id EFBF6C0613C1 for ; Wed, 21 Jul 2021 13:47:13 -0700 (PDT) Received: from dude03.red.stw.pengutronix.de ([2a0a:edc0:0:1101:1d::39]) by metis.ext.pengutronix.de with esmtp (Exim 4.92) (envelope-from ) id 1m6J7T-0004jk-FH; Wed, 21 Jul 2021 22:47:07 +0200 From: Lucas Stach To: Shawn Guo , Rob Herring Cc: NXP Linux Team , Adam Ford , Frieder Schrempf , Peng Fan , Marek Vasut , devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, kernel@pengutronix.de, patchwork-lst@pengutronix.de Subject: [PATCH v2 03/18] soc: imx: gpcv2: Set both GPC_PGC_nCTRL(GPU_2D|GPU_3D) for MX8MM GPU domain Date: Wed, 21 Jul 2021 22:46:48 +0200 Message-Id: <20210721204703.1424034-4-l.stach@pengutronix.de> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210721204703.1424034-1-l.stach@pengutronix.de> References: <20210716232916.3572966-1-l.stach@pengutronix.de> <20210721204703.1424034-1-l.stach@pengutronix.de> MIME-Version: 1.0 X-SA-Exim-Connect-IP: 2a0a:edc0:0:1101:1d::39 X-SA-Exim-Mail-From: l.stach@pengutronix.de X-SA-Exim-Scanned: No (on metis.ext.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: devicetree@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org From: Marek Vasut To bring up the MX8MM GPU domain, it is necessary to configure both GPC_PGC_nCTRL(GPU_2D) and GPC_PGC_nCTRL(GPU_3D) registers. Without this configuration, the system might hang on boot when bringing up the GPU power domain. This is sporadically observed on multiple disparate systems. Add the GPU3D bit into MX8MM GPU domain pgc bitfield, so that both GPC_PGC_nCTRL(GPU_2D) and GPC_PGC_nCTRL(GPU_3D) registers are configured when bringing up the GPU domain. This fixes the sporadic hang. Signed-off-by: Marek Vasut Signed-off-by: Lucas Stach Reviewed-by: Peng Fan --- drivers/soc/imx/gpcv2.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/soc/imx/gpcv2.c b/drivers/soc/imx/gpcv2.c index c7826ce92f0d..2c43e74db0be 100644 --- a/drivers/soc/imx/gpcv2.c +++ b/drivers/soc/imx/gpcv2.c @@ -679,7 +679,7 @@ static const struct imx_pgc_domain imx8mm_pgc_domains[] = { .hskreq = IMX8MM_GPU_HSK_PWRDNREQN, .hskack = IMX8MM_GPU_HSK_PWRDNACKN, }, - .pgc = BIT(IMX8MM_PGC_GPU2D), + .pgc = BIT(IMX8MM_PGC_GPU2D) | BIT(IMX8MM_PGC_GPU3D), }, [IMX8MM_POWER_DOMAIN_VPUMIX] = {