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Wed, 29 Oct 2025 04:24:48 -0700 (PDT) Received: from 0.1.2.1.2.0.a.2.dynamic.cust.swisscom.net ([2a02:1210:8642:2b00:82ee:73ff:feb8:99e3]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-429952b7b22sm25422572f8f.9.2025.10.29.04.24.47 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 29 Oct 2025 04:24:47 -0700 (PDT) Message-ID: <3e2ebf04f53cbf801e13fd808d8438c6d2cee412.camel@gmail.com> Subject: Re: [PATCH v2 4/4] ASoC: cs4271: Add support for the external mclk From: Alexander Sverdlin To: Herve Codina Cc: linux-sound@vger.kernel.org, patches@opensource.cirrus.com, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Thomas Petazzoni , David Rhodes , Richard Fitzgerald , Liam Girdwood , Mark Brown , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Jaroslav Kysela , Takashi Iwai , Nikita Shubin , Axel Lin , Brian Austin Date: Wed, 29 Oct 2025 12:24:47 +0100 In-Reply-To: <20251029093921.624088-5-herve.codina@bootlin.com> References: <20251029093921.624088-1-herve.codina@bootlin.com> <20251029093921.624088-5-herve.codina@bootlin.com> Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable User-Agent: Evolution 3.58.0 Precedence: bulk X-Mailing-List: linux-sound@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Hi! On Wed, 2025-10-29 at 10:39 +0100, Herve Codina wrote: > The mclk (master clock) of the cs4271 codec can be an input clock. >=20 > In this case the connected clock needs to be enabled outside of any > audio stream. Indeed, this clock is needed for i2c communication. >=20 > Add support of this clock and enable it before the first i2c transfer. >=20 > Signed-off-by: Herve Codina > --- > =C2=A0sound/soc/codecs/cs4271.c | 29 ++++++++++++++++++++++++++--- > =C2=A01 file changed, 26 insertions(+), 3 deletions(-) Reviewed-by: Alexander Sverdlin --=20 Alexander Sverdlin.