Message ID | 20190806005522.22642-3-pierre-louis.bossart@linux.intel.com (mailing list archive) |
---|---|
State | New, archived |
Headers | show
Return-Path: <alsa-devel-bounces@alsa-project.org> Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 5AEF61850 for <patchwork-alsa-devel@patchwork.kernel.org>; Tue, 6 Aug 2019 01:07:19 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 45EE82884A for <patchwork-alsa-devel@patchwork.kernel.org>; Tue, 6 Aug 2019 01:07:19 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 399DC2899E; Tue, 6 Aug 2019 01:07:19 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.9 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI,RCVD_IN_DNSWL_NONE autolearn=ham version=3.3.1 Received: from alsa0.perex.cz (alsa0.perex.cz [77.48.224.243]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 7243D2897D for <patchwork-alsa-devel@patchwork.kernel.org>; Tue, 6 Aug 2019 01:07:18 +0000 (UTC) Received: from alsa1.perex.cz (alsa1.perex.cz [207.180.221.201]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by alsa0.perex.cz (Postfix) with ESMTPS id A83341688; Tue, 6 Aug 2019 02:57:19 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz A83341688 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1565053089; bh=fgZzmMriLYJDhFqB1ffx55hZoGn+k55wUeSU6Wl0o2o=; h=From:To:Date:In-Reply-To:References:Cc:Subject:List-Id: List-Unsubscribe:List-Archive:List-Post:List-Help:List-Subscribe: From; b=ixtTC/RsAqrPZKOrPgLPGqUDujhYbsb650VmNy2IKFy5kthNzGBfhTMWCnEtwIGk5 37qQz7Trz1NvDDdtu3UWrllGRsgB0V54sGepnUhzT4UkrHOEBDMVG5ncL2nNm/kTeh Czug1yog1FSLGtr0qV61Z1oVTo+yPD5pYAsv7BTs= Received: from alsa1.perex.cz (localhost.localdomain [127.0.0.1]) by alsa1.perex.cz (Postfix) with ESMTP id B16E2F805F5; Tue, 6 Aug 2019 02:55:39 +0200 (CEST) X-Original-To: alsa-devel@alsa-project.org Delivered-To: alsa-devel@alsa-project.org Received: by alsa1.perex.cz (Postfix, from userid 50401) id C8A57F805DF; Tue, 6 Aug 2019 02:55:37 +0200 (CEST) Received: from mga01.intel.com (mga01.intel.com [192.55.52.88]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by alsa1.perex.cz (Postfix) with ESMTPS id D94BBF800F4 for <alsa-devel@alsa-project.org>; Tue, 6 Aug 2019 02:55:34 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz D94BBF800F4 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga004.fm.intel.com ([10.253.24.48]) by fmsmga101.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 05 Aug 2019 17:55:31 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.64,350,1559545200"; d="scan'208";a="198153114" Received: from sahluwal-mobl1.amr.corp.intel.com (HELO pbossart-mobl3.intel.com) ([10.252.202.215]) by fmsmga004.fm.intel.com with ESMTP; 05 Aug 2019 17:55:29 -0700 From: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> To: alsa-devel@alsa-project.org Date: Mon, 5 Aug 2019 19:55:07 -0500 Message-Id: <20190806005522.22642-3-pierre-louis.bossart@linux.intel.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190806005522.22642-1-pierre-louis.bossart@linux.intel.com> References: <20190806005522.22642-1-pierre-louis.bossart@linux.intel.com> MIME-Version: 1.0 Cc: tiwai@suse.de, gregkh@linuxfoundation.org, Blauciak@alsa-project.org, linux-kernel@vger.kernel.org, Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>, vkoul@kernel.org, broonie@kernel.org, srinivas.kandagatla@linaro.org, jank@cadence.com, Slawomir <slawomir.blauciak@intel.com>, Sanyog Kale <sanyog.r.kale@intel.com> Subject: [alsa-devel] [PATCH 02/17] soundwire: intel: fix channel number reported by hardware X-BeenThere: alsa-devel@alsa-project.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: "Alsa-devel mailing list for ALSA developers - http://www.alsa-project.org" <alsa-devel.alsa-project.org> List-Unsubscribe: <https://mailman.alsa-project.org/mailman/options/alsa-devel>, <mailto:alsa-devel-request@alsa-project.org?subject=unsubscribe> List-Archive: <http://mailman.alsa-project.org/pipermail/alsa-devel/> List-Post: <mailto:alsa-devel@alsa-project.org> List-Help: <mailto:alsa-devel-request@alsa-project.org?subject=help> List-Subscribe: <https://mailman.alsa-project.org/mailman/listinfo/alsa-devel>, <mailto:alsa-devel-request@alsa-project.org?subject=subscribe> Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: alsa-devel-bounces@alsa-project.org Sender: "Alsa-devel" <alsa-devel-bounces@alsa-project.org> X-Virus-Scanned: ClamAV using ClamSMTP |
Series |
soundwire: fixes for 5.4
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diff --git a/drivers/soundwire/intel.c b/drivers/soundwire/intel.c index a906789c7f78..fe3266bc1d12 100644 --- a/drivers/soundwire/intel.c +++ b/drivers/soundwire/intel.c @@ -390,6 +390,16 @@ intel_pdi_get_ch_cap(struct sdw_intel *sdw, unsigned int pdi_num, bool pcm) if (pcm) { count = intel_readw(shim, SDW_SHIM_PCMSYCHC(link_id, pdi_num)); + + /* + * WORKAROUND: on all existing Intel controllers, pdi + * number 2 reports channel count as 1 even though it + * supports 8 channels. Performing hardcoding for pdi + * number 2. + */ + if (pdi_num == 2) + count = 7; + } else { count = intel_readw(shim, SDW_SHIM_PDMSCAP(link_id)); count = ((count & SDW_SHIM_PDMSCAP_CPSS) >>
On all released Intel controllers (CNL/CML/ICL), PDI2 reports an invalid count, force the correct hardware-supported value This may have to be revisited with platform-specific values if the hardware changes, but for now this is good enough. Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> --- drivers/soundwire/intel.c | 10 ++++++++++ 1 file changed, 10 insertions(+)