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 A3EE21DD0EF; Mon, 18 May 2026 06:07:30 +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=1779084454; cv=none; b=QkJsPqc69Ev0OnJW8/ThSo5W0gyyxCoAH/Y5Hfx9B39QA6n9/3QYpJ/gm8xhEMjQXtoitZfXt2XBlfaHpUM6M2nMWkhN7Y2H4AkFKIZH/2HVg9Ehq9J1PggRwliIFwg9g4n8kC/NqHDQ8hP2ipjFDwCWpaONW/Hg5EJH1lGUOwM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779084454; c=relaxed/simple; bh=O6EsBYb5cXQKW5SqmIV3nbvHHWyFMWoTzDW0hRz3bp0=; h=Mime-Version:Content-Type:Date:Message-Id:To:Cc:Subject:From: References:In-Reply-To; b=FR9SR+lRMn+jM40/Pvu5kzuWHOh0f4e55ayWzY6NEVwq0IQ6R482AZNcuY4O7rhnEVbMI2a9ulE+wyWgvDaNBq12sykhnry0sLTVJ+T4ab50ckl/KX9qjc2ylZEnO8sAznM+SUclKbezF9vZnhuWpay9T4r29TG4zZeBbXPIcao= 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=VOARu9fi; 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="VOARu9fi" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.spacemit.com; s=mxsw2412; t=1779084379; bh=MrpWH7HlsQ4718RsP2YESKmL9cnLUPJilpVnbVJ80sA=; h=Mime-Version:Date:Message-Id:To:Subject:From; b=VOARu9fii1Yd1498A6G26EzCzm2lxzJLJqGMQRMQycpXWXv2EWoPI4DA/27pCQLRq yO65AwT2j55moQzyoggL6+tGLunBN0Gczuiug/1w2AM2tLwSH55QdRxvQQhhc7XcNV v020NiNGLiRSkBlejXmpdxBJi5UCxS9/1VfGlcxc= X-QQ-mid: zesmtpgz6t1779084371t299a81d7 X-QQ-Originating-IP: Naxhh+jCT4NJs5ea8bXpSGR5yxdNPwg312+/Ll2UCKI= Received: from = ( [61.145.255.150]) by bizesmtp.qq.com (ESMTP) with id ; Mon, 18 May 2026 14:06:09 +0800 (CST) X-QQ-SSF: 0000000000000000000000000000000 X-QQ-GoodBg: 0 X-BIZMAIL-ID: 8651641378394459406 EX-QQ-RecipientCnt: 11 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: Mon, 18 May 2026 14:06:08 +0800 Message-Id: To: "Mark Brown" , "Troy Mitchell" Cc: "Liam Girdwood" , "Jaroslav Kysela" , "Takashi Iwai" , "Yixun Lan" , , , , , Subject: Re: [PATCH v2 3/3] ASoC: spacemit: declare shared BCLK for cross-DAI rate constraint From: "Troy Mitchell" X-Mailer: aerc 0.21.0-0-g5549850facc2 References: <20260507-i2s-same-blk-v2-0-ede05a22f732@linux.spacemit.com> <20260507-i2s-same-blk-v2-3-ede05a22f732@linux.spacemit.com> In-Reply-To: X-QQ-SENDSIZE: 520 Feedback-ID: zesmtpgz:linux.spacemit.com:qybglogicsvrgz:qybglogicsvrgz3a-0 X-QQ-XMAILINFO: NL7b8Hgtati0awgSvM3gySwzlHj0YBaUB7eWQ/cT6pTx/spaUUlVGQ5k +q5UlcbmKB3j7EMkpbVV1ea4jh22JPlQJB9yE681lHCt0jzms0VYXyjHZTaYaaIGCC4/Nqw OYSNanpZu6fXGp3FhyjMkHvTyRgMSJHFWF14kUv76VgVzj+FPdH8dr0x02PIqEW3AdXBI2o 0jIx8+io78k6GLrbhQJmI5sG6IKlBI05hurSfxq/YzPrgol4AfawK8irVgqF3Pc0EMz9CjZ b5SjgEPJO8Ew7rE3q9aqyMqaF9SFONDWlIZ4OazDX+te1H+3fhxxl8dMIkUjc5vmpmELwmC 8rflv9O/W65ZfuqtNpJSjsr+VIQ7Da4PKj5cfjTgku1EnQkC/uPhEM01aA9DFP+YGvRYmAq T7YLHuTvQ0boQ4F4OSUQNme9vjK4btCB/QNaopROfrZY35tRKa7O8UiEM4w7OjSMQiYeyE0 n81K0pDZ3fBPvDnjI0boX/IYGNqpG18I42GTLNgD4pKit9Jek0eCv21SN9QMf3FQAcTs2G7 jUvM24GvvtrxozwvOMY0ruY3WNK0s7OHEamdvrCBfDQsXWvt3Ho44RLlJWuGMBgEPsVcnd6 55b2Y6CjcOmwS30JtovrdTuVAJWe71vNXKaaZUiSc8zZM3/GZY0xudmTxmajTzicPa0J3Vw wyVXpxapoCbbKdDvf2AoLL0QxaVslpGZavlMLtZBiXxW//vW4rmLtFuy5vNFrIY0pm0RB+i EF/DEFmwBC1JQrXx+ET4HMZjIbaRZvTdewzRcyUchSFjaeeN2oGgprzS14vo3wD8KI/3i7p XD6ZwZP6EbLGqWwwNWZqCj74xW+NmSrn4YMF2Cwa82Kv/ZTP8oYmrndDcmT48Qq7Gm0jN9o D1UZXqRMEW6LV0G/g2pyzZBKfdB9NP9xG3PKURoiBWT/yQr5brlY6Ml7b1kx9a02Jiso4M2 NCNWQvP/tilBpIVo5nj9EOkD7zu8eemka0WK3f+Jvp7pz0wLbOKrC0UA4Q4Wv7u+g/FC2OV UJ4k7QF+Huw3MlZPkNnGUo2sFww0gpWIAG9iHCfzfjjb0nuPWN/g+oXJh3aa/lVA5N1lusf jgNfmWNGlJe X-QQ-XMRINFO: OWPUhxQsoeAVwkVaQIEGSKwwgKCxK/fD5g== X-QQ-RECHKSPAM: 0 Hi Mark, On Mon May 11, 2026 at 10:21 PM CST, Mark Brown wrote: > On Thu, May 07, 2026 at 06:31:44PM +0800, Troy Mitchell wrote: >> On SpacemiT K3, multiple I2S controllers share the same physical BCLK >> (c_bclk). Declare this clock via snd_soc_dai_set_bclk_clk() so the >> ASoC core can automatically constrain hw_params when one controller is >> already streaming. >>=20 >> For K1, c_bclk is NULL (obtained via devm_clk_get_optional_enabled), >> so this call is a no-op and behavior is unchanged. > > We don't appear to have a c_bclk in current code? You're right, I forgot to note the dependency. I'll drop this patch in v3 so the core framework patches can be merged independently. I'll resend it as a standalone patch. - Troy