From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtpbgsg2.qq.com (smtpbgsg2.qq.com [54.254.200.128]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id E529538AC83; Wed, 29 Apr 2026 08:06:37 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=54.254.200.128 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1777450000; cv=none; b=P9eUwHga8yZuLj5kVamwZwl1BGtAqJoyhqzGUjU7KG6f2T2DjznKbWnYaAoWFnXiDpB1vaKgwxCxi4nCPLrswIy7dpMgpwLDWksPMg6JiIYQoM33CrVW3fv5IifVI5sUacUs0cuBE6zFWo2ocvFYF2yt/iZUc771srE55o8lnfo= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1777450000; c=relaxed/simple; bh=VVYnj1NTnND102+Nf5YuvXZE1Q7Pxxugvsqk0sklmCc=; h=Mime-Version:Content-Type:Date:Message-Id:Cc:Subject:From:To: References:In-Reply-To; b=hxh6Oh1b6jiNFRw3Bz+gAXEgnJKLZq1nOLDMjfR7XpV/Uvk1W2qhTcDvq3GkUkZpVu97HHGcL+X1VcnAutylAjCfOy9o9SGsIHV0wh75Z2Z1FsVuSz/wgpvJqMckIRtmZ96CkuigXjY/l1VapMr7z6WsMYdvPKrOFG2EsP3DPao= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=linux.spacemit.com; spf=none smtp.mailfrom=linux.spacemit.com; dkim=pass (1024-bit key) header.d=linux.spacemit.com header.i=@linux.spacemit.com header.b=Pupt700R; arc=none smtp.client-ip=54.254.200.128 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=linux.spacemit.com Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=linux.spacemit.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux.spacemit.com header.i=@linux.spacemit.com header.b="Pupt700R" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.spacemit.com; s=mxsw2412; t=1777449996; bh=syEXayrqEHH29YbUaaMKUuDyp4pncudJ2CvPpGtXRfE=; h=Mime-Version:Date:Message-Id:Subject:From:To; b=Pupt700REialrguCPvpqNzAf65wEHclICw8FbyEX7TtFrbRuN+hjQ70F6/sjK6dPX L4dXfRwgmySHdDpviIhNB1s7wqlpUWSTlBEOVAOnbnjPc6ly7hpeqGzL0OdfJl+pkb ZNq8O0YRWyCzVPoZwlKPEGaIzt+8Mnq7GMgAPz9U= X-QQ-mid: esmtpsz16t1777449991t0408f2f1 X-QQ-Originating-IP: zsMbRQkynHqJbH/L4Vq0BAqBfw14VUbJtUTjJQM+xnU= Received: from = ( [120.237.158.181]) by bizesmtp.qq.com (ESMTP) with id ; Wed, 29 Apr 2026 16:06:29 +0800 (CST) X-QQ-SSF: 0000000000000000000000000000000 X-QQ-GoodBg: 0 X-BIZMAIL-ID: 2472965661338442668 EX-QQ-RecipientCnt: 15 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=UTF-8 Date: Wed, 29 Apr 2026 16:06:29 +0800 Message-Id: Cc: "Liam Girdwood" , "Jaroslav Kysela" , "Takashi Iwai" , "Yixun Lan" , "Jinmei Wei" , "Rob Herring" , "Krzysztof Kozlowski" , "Conor Dooley" , , , , , Subject: Re: [PATCH 5/7] ASoC: dt-bindings: add fixed-sample-rate property for SpacemiT K1/K3 From: "Troy Mitchell" To: "Mark Brown" , "Troy Mitchell" X-Mailer: aerc 0.21.0-0-g5549850facc2 References: <20260429-k3-i2s-v1-0-2fe99db11ecb@linux.spacemit.com> <20260429-k3-i2s-v1-5-2fe99db11ecb@linux.spacemit.com> In-Reply-To: X-QQ-SENDSIZE: 520 Feedback-ID: esmtpsz:linux.spacemit.com:qybglogicsvrgz:qybglogicsvrgz3a-0 X-QQ-XMAILINFO: NvjhxCSDgXICNTjF5sbhR1Ej1KS02YF/43sZoKoKRo1Wt/BFz3Eozs1g szIwzAQfrwcXlmGc/EivbdsQBLMg3NHxaQysIsJUMzbso2+j8TEhRq0HBkwyr0WNKD4+o0q s3TohujMd71h0sxQGLlwV0Vpj828JTF8zwvKc2vnXURXjGbs4BhCnPXEFgQLnaiGOYf/cyY Mc4n11PXb0ovHnvOd6snNJX/ol5cjCiZxIcbwozrEJtkPb0NYqXd5PwaIrOxO+cRQ//BS+s iJce7xvsIt2VZcPPZQs2rCMnRg1y95wTL4TTqO2prKJsVaxRge8OqaU6QkybaSzrH0UgZu9 x9vjOTI1qN9apasI5md8rYiem7i4n/5aH3dVxLC7/nPflnM5FtmyVBD0zM3MfXrU4wAw4f8 o4iemIo33jzu3p6+P6jd/KkepaHQvk2CS/nMjxJUQxDXqFDIe7EgLFfLirKDZdamCktsnqd t9/POJt/QCDP1U/7Y8DK5ouNFyVXsfDn597+ykXTjaaliNUQqs4hRzOnVE6d+Vg3HewuYxh zELL9RYki/w6ZUDgNEsbmxoxlB3vJQBwow+YmooznSUShkUFkwYHkWND/cB3HuqCc8JkX+S YdfhqySEaZDALLmwh+TEjfkkD05DbXnnOuKwhYMQQG39QeTHkg1//dSi45EhOEoO8kKy0Pl qWmzKeJo/mQ2Ho8Px387TJzk6NXoHSjjrUuNc0XdCx5s+LISSnaTmqnSDEkA4+LqRI5k/lp atnLMVgpaKg1yGYdtkmsC6jdzsWoW0MgAEEPqoznSriaj2xL94RSwSPpk6QyC2rUn5O7MbG gbHDcShTGuXq9vSSvf4nvRMzrNkqOVYZBc7wzpufsLEgxf0A2V0fGh6xWaQlqUweLOLc9Ol OzB1MwDDvih7QjOA+S9l9fGApaO915yevjo2Q+m6j2wzMsMffiKPhgqfipKSsqFDGw7bInz kUX0k88J3dHdf4yLrGBsKrPSyzHdWMoST4P/XOvDuEd9oCdi9Gip2Sr1/GrlQblmVgN0EXv 2hYRvnNLWAuckhAnT7OE8qmMfe8O/xlX9erUilOCyl9njL8iIwYxUfRqpJJErc7SgTd+73Z Q== X-QQ-XMRINFO: MPJ6Tf5t3I/ylTmHUqvI8+Wpn+Gzalws3A== X-QQ-RECHKSPAM: 0 On Wed Apr 29, 2026 at 10:18 AM CST, Mark Brown wrote: > On Wed, Apr 29, 2026 at 09:38:50AM +0800, Troy Mitchell wrote: >> Add the optional spacemit,fixed-sample-rate property. When multiple I2S >> controllers share a common bclk, this property constrains all >> controllers to the same sample rate. This applies to both K1 and K3 >> SoCs and is only needed when two or more I2S controllers are active >> simultaneously. > > This doesn't seem controller specific, it should be factored out into > the core - the same issue will apply with any system sharing a BCLK. Agreed, this isn't SpacemiT-specific. I'll drop the fixed-sample-rate patches (5/7 and 6/7) from the K3 series to keep things moving, and follow up with a separate series that addresses the shared BCLK constraint at the core level. - Troy