From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 2CF5CEACD; Tue, 7 Oct 2025 13:48:05 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1759844886; cv=none; b=dtoaOLfq+1flptDbx1WUuTXJwmIlZ8VExm9gjbBeEnSk02dYbMep2t/Jkuw6VV/NEhLKlnbJwf4TlYYhna3s5srbITEdQStXGeUZn1AAaCMaq/NvKOeZ76jcDlkmaiogz7ejxtnJf25g0UBPY8fic+n9uUlkwx0wG4PfU/BVNdQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1759844886; c=relaxed/simple; bh=4/4SX/q9VB4cE9kuVPhWF8KCi+XreZkiVVBqTifUcAA=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=sytDcMoVLWzFKPLX78M2RJldeZEFWMgRHmFzthWEBU1Dim3lXKurrcIgxlTOc6KDMPSNbyLyl6r3TfeCu2hwtUCa4mybwRHXazWEVJQzsSS8XP2jCiG55A7kpnYXngosElWaSvPRLFjvt1ZBUsVe7dRiExdGEqMtfsabS+PI9kY= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=AGo78e9G; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="AGo78e9G" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 5E44CC4CEF1; Tue, 7 Oct 2025 13:48:04 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1759844885; bh=4/4SX/q9VB4cE9kuVPhWF8KCi+XreZkiVVBqTifUcAA=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=AGo78e9GvCJP4T9EDZNxVyHHe8i4RI1V5D4fdiXpBNuuqH4DbEhY4ZQlciLOpOPmB Qk+KC/m91wjzWIkG8qqU4rmQHDbnXPAuIm6ysv75TO/vXhhR9BLuHMrqS6Zyswtbhb eg4qyc58/8jSnMURatPCObsAUG2DtKhgEo5tGZOl5wfRozRtGK8/n0TZHoMWOBl8qt 8b3yEboEyoTE6UReBIVEZdZi3GHYrhUHGHAzi+6bLXIL57TCcx42OpzckoHBoTXk6X hcZnhoH1Rnkt9OzX0IPBxxvSuyDlpQ5wTV0WAY76V2+m/hyPbqRIfskbw9Eog3xEMD p12yoirpyWSIg== Date: Tue, 7 Oct 2025 14:48:01 +0100 From: Mark Brown To: Sune Brian Cc: Charles Keepax , Liam Girdwood , Kuninori Morimoto , linux-sound@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] sound/soc/codecs/wm8978: add missing BCLK divider setup Message-ID: References: <20251003091304.3686-1-briansune@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="EFN581FX+K83+URe" Content-Disposition: inline In-Reply-To: X-Cookie: Teachers have class. --EFN581FX+K83+URe Content-Type: text/plain; charset=us-ascii Content-Disposition: inline On Tue, Oct 07, 2025 at 09:39:59PM +0800, Sune Brian wrote: > Before the below action started. I need more background, if possible. > If my understand is correct on your ideas. Do you mean the default driver calls > the bclkdiv on other places? But how could that bclkdiv # be correct > from first place? > As I had mentioned the div # ifself like this codec is a LUT rather > than the actual divided #? > For example /32 from LUT is a 3b101? > For example what if MCLK is set higher than /64 could even out of the > LUT from first place. > The external div # passed in, how to ensure it is codec LUT compatible > from first place? Systems doing this are using a machine driver written for that specific machine and will know exactly which CODEC and other components they are dealing with. --EFN581FX+K83+URe Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQEzBAABCgAdFiEEreZoqmdXGLWf4p/qJNaLcl1Uh9AFAmjlGhAACgkQJNaLcl1U h9AM6Af/eZL0C0ipwU26zrj2GjyQpI2PmWTyayMGQRploTw4F3uO1jK4v4UHjSJy 8xFRvRFll8FWv+d4sSXjQOiz1aHX0SaHjGHUwYHBx2xwty8dRearUwuIrUFkGWUf U40wGclX1Kbqlxu6KVYYIG0NYKFq4W8gAcq35nXwYgGmPwVaj9p8fYR957Goz5K2 6gDoHf6X5SxNFT6JKt7ZCbX6aFZGZsYnDMF2+spx+qlk4INRzc0GQ/GaEsmGYmcO WsDFIU594snCbSW6lDAZDJFUHnmSjWE5gP3KgcTdWaYQ8CdSHMYED219ZOLhKsUV 8GP4RGhu9PWPDQbvbULYuLIgdh0DYA== =FYKp -----END PGP SIGNATURE----- --EFN581FX+K83+URe--