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d="scan'208";a="312620126" Received: from irsmsx606.ger.corp.intel.com ([163.33.146.139]) by fmsmga008.fm.intel.com with ESMTP; 24 Nov 2020 08:07:20 -0800 Received: from irsmsx601.ger.corp.intel.com (163.33.146.7) by IRSMSX606.ger.corp.intel.com (163.33.146.139) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.1713.5; Tue, 24 Nov 2020 16:07:20 +0000 Received: from irsmsx601.ger.corp.intel.com ([163.33.146.7]) by irsmsx601.ger.corp.intel.com ([163.33.146.7]) with mapi id 15.01.1713.004; Tue, 24 Nov 2020 16:07:20 +0000 From: "Rojewski, Cezary" To: Takashi Iwai , Mark Brown Subject: RE: [PATCH 00/14] ASoC: Intel/SOF: extend run-time driver selection to ACPI devices Thread-Topic: [PATCH 00/14] ASoC: Intel/SOF: extend run-time driver selection to ACPI devices Thread-Index: AQHWuUTISKj33SVxVku5O7g0f1ygmanF+0XggABMLQCAAASUgIAEnFAQgAAmMgCAAVQSgIAAh8aQgAAL6wCAAWXZUIAAA0eAgALUmaCAABNygIAABbuAgAAQAICAADBe4IAEff6AgAEzKOCAACNSgIAAA+gAgAAZcGA= Date: Tue, 24 Nov 2020 16:07:19 +0000 Message-ID: References: <0badb36f-3089-dc34-f7b0-75a73b856f0d@linux.intel.com> <20201120164841.GF6751@sirena.org.uk> <758af664b89545c5be83ca2bc81078fb@intel.com> <20201120180627.GI6751@sirena.org.uk> <20201123173533.GL6322@sirena.org.uk> <41fbc38fa46f41f49b4ff846f9f7b5b2@intel.com> <20201124140119.GC4933@sirena.org.uk> In-Reply-To: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: dlp-product: dlpe-windows dlp-reaction: no-action dlp-version: 11.5.1.3 x-originating-ip: [163.33.253.164] Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Cc: Hans de Goede , "alsa-devel@alsa-project.org" , "andriy.shevchenko@linux.intel.com" , Pierre-Louis Bossart 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" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: alsa-devel-bounces@alsa-project.org Sender: "Alsa-devel" On 2020-11-24 3:15 PM, Takashi Iwai wrote: > On Tue, 24 Nov 2020 15:01:19 +0100, Mark Brown wrote: >> >> On Tue, Nov 24, 2020 at 11:56:36AM +0000, Rojewski, Cezary wrote: >> >>> What the patchset presents catpt vs SOF. /sof/ runs through SOF firmwar= e >>> so it cannot be account as old-implementation. It's a mix of not >>> recommended fw + incorrect sw flow. As old /haswell/ is no more, there >>> is no worrying about catpt deployment - it's your only option. As there >>> is no userspace involved (lack of topology files), base firmware binary >>> remains the same and amixer kcontrols behave 1:1 when compared to its >>> predecessor, compatibility is left intact. >> >>> That's exactly why we should be explicit in driver selection. Pretty >>> sure hsw/bdw case is still mistakenly addressed to as if it was >>> atom-based platform. >> >> It's not just the userspace interface that worries people, it's also any >> board specific quirks that might turn up. A good chunk of the work with >> x86 sound support is quirking around platform specifics - look at all >> the patches Hans sends for example. In an ideal world this would just >> be people worrying too much but the general history with getting generic >> code working well on a wide range of x86 hardware it's hard to blame >> anyone for being conservative about substantial changes in the software >> stack. Mark, there is not a single word I don't agree with in your statement. In regard to quirks - I was surprised how much detail Hans found out regarding atom platforms. That's a lot of good input. And that's probably one of the key reasons why atom is properly supported in linux. My point has more "basic" nature. =20 > I guess Cezary's point is that CATPT is the only driver for Haswell, > hence the intel-dsp-config is useless for it. This! and.. > But I thought CATPT also covers Broadwell, and Broadwell can be > supported by both CATPT and SOF? If so, the dynamic switching makes > sense. ..more. Dynamic selection made sense if you're in transition period as it is the case for atoms. There is no transition period for hsw/bdw. BDW as "supported" by SOF would be a strong claim. There is no commitment and Intel does not recommend using it for hsw/bdw for any scenario. And as such, selection-subject does not apply here. Believe removal of /sof/intel/bdw.c is in order? Czarek