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Mon, 06 Oct 2025 18:39:52 -0700 (PDT) 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: Tue, 07 Oct 2025 02:39:50 +0100 Message-Id: From: "Alexey Klimov" To: "Neil Armstrong" , "Srinivas Kandagatla" , "Liam Girdwood" , "Mark Brown" , "Jaroslav Kysela" , "Takashi Iwai" , "Rob Herring" , "Krzysztof Kozlowski" , "Conor Dooley" , "Bjorn Andersson" , "Konrad Dybcio" Cc: , , , Subject: Re: [PATCH RFC 4/6] sm8650-hdk: Enable I2S for HDMI X-Mailer: aerc 0.20.0 References: <20251006-topic-sm8x50-next-hdk-i2s-v1-0-184b15a87e0a@linaro.org> <20251006-topic-sm8x50-next-hdk-i2s-v1-4-184b15a87e0a@linaro.org> In-Reply-To: <20251006-topic-sm8x50-next-hdk-i2s-v1-4-184b15a87e0a@linaro.org> On Mon Oct 6, 2025 at 7:37 PM BST, Neil Armstrong wrote: > Add the necessary nodes to configure the right I2S interface > to output audio via the DSI HDMI bridge. > > Signed-off-by: Neil Armstrong > --- > arch/arm64/boot/dts/qcom/sm8650-hdk.dts | 30 +++++++++++++++++++++++++ > arch/arm64/boot/dts/qcom/sm8650.dtsi | 40 +++++++++++++++++++++++++++= ++++++ > 2 files changed, 70 insertions(+) > > diff --git a/arch/arm64/boot/dts/qcom/sm8650-hdk.dts b/arch/arm64/boot/dt= s/qcom/sm8650-hdk.dts > index 87d7190dc991b11f5d1162aabb693dcadd198c51..1286ce95235d5544322a18772= 92cbdd426298c11 100644 > --- a/arch/arm64/boot/dts/qcom/sm8650-hdk.dts > +++ b/arch/arm64/boot/dts/qcom/sm8650-hdk.dts > @@ -171,6 +171,19 @@ sound { > "TX SWR_INPUT1", "ADC2_OUTPUT", > "TX SWR_INPUT3", "ADC4_OUTPUT"; > =20 > + pinctrl-0 =3D <&i2s0_default_state>, <&audio_mclk0_default_state>; > + pinctrl-names =3D "default"; > + > + clocks =3D <&q6prmcc LPASS_CLK_ID_PRI_MI2S_IBIT LPASS_CLK_ATTRIBUTE_CO= UPLE_NO>, > + <&q6prmcc LPASS_CLK_ID_MCLK_1 LPASS_CLK_ATTRIBUTE_COUPLE_NO>; > + clock-names =3D "pri-mi2s", > + "pri-mclk"; > + > + assigned-clocks =3D <&q6prmcc LPASS_CLK_ID_PRI_MI2S_IBIT LPASS_CLK_ATT= RIBUTE_COUPLE_NO>, > + <&q6prmcc LPASS_CLK_ID_MCLK_1 LPASS_CLK_ATTRIBUTE_COUPLE_NO>; > + assigned-clock-rates =3D <1536000>, > + <24576000>; > + > wcd-playback-dai-link { > link-name =3D "WCD Playback"; > =20 > @@ -218,6 +231,22 @@ platform { > sound-dai =3D <&q6apm>; > }; > }; > + > + pri-mi2s-dai-link { > + link-name =3D "Primary MI2S Playback"; Is it HDMI only audio playback or does it have switches to playback it as r= aw i2s (when external DAC is needed)? > + cpu { > + sound-dai =3D <&q6apmbedai PRIMARY_MI2S_RX>; > + }; > + > + codec { > + sound-dai =3D <<9611_codec 0>; > + }; > + > + platform { > + sound-dai =3D <&q6apm>; > + }; > + }; > }; [..] Best regards, Alexey