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Wed, 5 Aug 2020 06:21:14 +0000 From: "Sit, Michael Wei Hong" To: Mark Brown Subject: RE: [PATCH 4/4] dt-bindings: sound: intel,keembay-i2s: Add channel-max property Thread-Topic: [PATCH 4/4] dt-bindings: sound: intel,keembay-i2s: Add channel-max property Thread-Index: AQHWZmTSECd6XhR1kUiCjOuunRmPnqklpW/ggACVP4CAAP0SgIAAplCAgAE1hHA= Date: Wed, 5 Aug 2020 06:21:14 +0000 Message-ID: References: <20200730055319.1522-1-michael.wei.hong.sit@intel.com> <20200730055319.1522-5-michael.wei.hong.sit@intel.com> <20200730112948.GB5055@sirena.org.uk> <20200803104917.GB4502@sirena.org.uk> <20200804115019.GA5249@sirena.org.uk> In-Reply-To: <20200804115019.GA5249@sirena.org.uk> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: dlp-reaction: no-action dlp-version: 11.5.1.3 dlp-product: dlpe-windows authentication-results: kernel.org; dkim=none (message not signed) header.d=none;kernel.org; dmarc=none action=none header.from=intel.com; x-originating-ip: [121.123.85.241] x-ms-publictraffictype: Email x-ms-office365-filtering-correlation-id: 7448d20c-005c-4926-6732-08d83907c13c x-ms-traffictypediagnostic: BYAPR11MB3271: x-ld-processed: 46c98d88-e344-4ed4-8496-4ed7712e255d,ExtAddr x-ms-exchange-transport-forked: True x-microsoft-antispam-prvs: x-ms-oob-tlc-oobclassifiers: OLM:6790; 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tiwai@suse.com; pierre- > louis.bossart@linux.intel.com; Rojewski, Cezary > ; Shevchenko, Andriy > ; liam.r.girdwood@linux.intel.com; > Sia, Jee Heng > Subject: Re: [PATCH 4/4] dt-bindings: sound: intel,keembay-i2s: Add > channel-max property >=20 > On Tue, Aug 04, 2020 at 01:57:23AM +0000, Sit, Michael Wei Hong > wrote: >=20 > > > > The platform also has 2 different interfaces which have > different > > > supported max-channels. > > > > Using this value in the device-tree to determine the maximum > > > supported channel of the interface. >=20 > > > These should have different compatible strings, there are likely > > > further differences between them (even if they are not currently > > > documented). >=20 > > The 2 different I2S ports are from the same SoC which supports > > different number of channels, do we need different compatible > strings for this? > > Considering the only difference is the maximum supported > channels is 8 and 2? >=20 > Are you *sure* that's the only difference, or is that just the only > difference you know about right now? Yes, I am fairy sure that is the only difference according to the design, a= s per the platform use case.