From patchwork Tue Dec 1 08:54:08 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg KH X-Patchwork-Id: 335865 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=-18.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, HEADER_FROM_DIFFERENT_DOMAINS, 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 EDB94C83012 for ; Tue, 1 Dec 2020 09:07:48 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 8861A20656 for ; Tue, 1 Dec 2020 09:07:48 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="Xt5BMYMR" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2388996AbgLAJHd (ORCPT ); Tue, 1 Dec 2020 04:07:33 -0500 Received: from mail.kernel.org ([198.145.29.99]:44602 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2389134AbgLAJHb (ORCPT ); Tue, 1 Dec 2020 04:07:31 -0500 Received: from localhost (83-86-74-64.cable.dynamic.v4.ziggo.nl [83.86.74.64]) (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 BDF5E206C1; Tue, 1 Dec 2020 09:06:50 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1606813611; bh=aolf/JTFx8UwBgnU90Rlf5q5kYjL3ySZ4Yh56LQpZUk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Xt5BMYMRdrS7+eSNdwB/ABwr1rAn1fyshUyftM4XExQiKe+Dc/EUhGkdgaGlUC9oA OPwYmKrb6Ku0YRRKDe2TIlwgdh/vqSZ5Vt+rDCRddkz8ZRO6af8s5K+3xFeu2BQLaC VLKnSmglR86RhEY6YrHqa6CeXf/sQm2s6Zla5f38= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, "alsa-devel@alsa-project.org, broonie@kernel.org, tiwai@suse.com, pierre-louis.bossart@linux.intel.com, mateusz.gorski@linux.intel.com, Cezary Rojewski" , Pierre-Louis Bossart , Mark Brown , Cezary Rojewski Subject: [PATCH 5.4 91/98] ASoC: Intel: Skylake: Remove superfluous chip initialization Date: Tue, 1 Dec 2020 09:54:08 +0100 Message-Id: <20201201084659.522735398@linuxfoundation.org> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20201201084652.827177826@linuxfoundation.org> References: <20201201084652.827177826@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Cezary Rojewski commit 2ef81057d80456870b97890dd79c8f56a85b1242 upstream. Skylake driver does the controller init operation twice: - first during probe (only to stop it just before scheduling probe_work) - and during said probe_work where the actual correct sequence is executed To properly complete boot sequence when iDisp codec is present, bus initialization has to be called only after _i915_init() finishes. With additional _reset_list preceding _i915_init(), iDisp codec never gets the chance to enumerate on the link. Remove the superfluous initialization to address the issue. Signed-off-by: Cezary Rojewski Reviewed-by: Pierre-Louis Bossart Link: https://lore.kernel.org/r/20200305145314.32579-2-cezary.rojewski@intel.com Signed-off-by: Mark Brown Cc: # 5.4.x Signed-off-by: Greg Kroah-Hartman --- sound/soc/intel/skylake/skl.c | 13 ++++--------- 1 file changed, 4 insertions(+), 9 deletions(-) --- a/sound/soc/intel/skylake/skl.c +++ b/sound/soc/intel/skylake/skl.c @@ -807,6 +807,9 @@ static void skl_probe_work(struct work_s return; } + skl_init_pci(skl); + skl_dum_set(bus); + err = skl_init_chip(bus, true); if (err < 0) { dev_err(bus->dev, "Init chip failed with err: %d\n", err); @@ -922,8 +925,6 @@ static int skl_first_init(struct hdac_bu return -ENXIO; } - snd_hdac_bus_reset_link(bus, true); - snd_hdac_bus_parse_capabilities(bus); /* check if PPCAP exists */ @@ -971,11 +972,7 @@ static int skl_first_init(struct hdac_bu if (err < 0) return err; - /* initialize chip */ - skl_init_pci(skl); - skl_dum_set(bus); - - return skl_init_chip(bus, true); + return 0; } static int skl_probe(struct pci_dev *pci, @@ -1080,8 +1077,6 @@ static int skl_probe(struct pci_dev *pci if (bus->mlcap) snd_hdac_ext_bus_get_ml_capabilities(bus); - snd_hdac_bus_stop_chip(bus); - /* create device for soc dmic */ err = skl_dmic_device_register(skl); if (err < 0) {