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[92.42.140.82]) by smtp.gmail.com with ESMTPSA id l16-20020adfe9d0000000b00317e77106dbsm23511973wrn.48.2023.09.07.08.18.03 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 07 Sep 2023 08:18:04 -0700 (PDT) From: Jakob Unterwurzacher X-Google-Original-From: Jakob Unterwurzacher To: Rob Herring , Krzysztof Kozlowski , Conor Dooley , Heiko Stuebner , Jakob Unterwurzacher , Ermin Sunj , Quentin Schulz Cc: stable@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH v3 1/2] arm64: dts: rockchip: use codec as clock master on px30-ringneck-haikou Date: Thu, 7 Sep 2023 17:17:15 +0200 Message-Id: <20230907151725.198347-1-jakob.unterwurzacher@theobroma-systems.com> X-Mailer: git-send-email 2.39.2 MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230907_081809_686151_5D5DC716 X-CRM114-Status: GOOD ( 13.67 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: Ermin Sunj If the codec is not the clock master, the MCLK needs to be synchronous to both I2S_SCL ans I2S_LRCLK. We do not have that on Haikou, causing distorted audio. Before: Running an audio test script on Ringneck, 1kHz output sine wave is not stable and shows distortion. After: 10h audio test script loop failed only one time. That is 0.00014% failure rate. Cc: stable@vger.kernel.org Fixes: c484cf93f61b ("arm64: dts: rockchip: add PX30-µQ7 (Ringneck) SoM with Haikou baseboard") Signed-off-by: Ermin Sunj Signed-off-by: Jakob Unterwurzacher --- Notes: v1: https://lore.kernel.org/lkml/20230823122000.585787-1-jakob.unterwurzacher@theobroma-systems.com/ v2: https://lore.kernel.org/lkml/20230823131651.586934-1-jakob.unterwurzacher@theobroma-systems.com/ arch/arm64/boot/dts/rockchip/px30-ringneck-haikou.dts | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/arch/arm64/boot/dts/rockchip/px30-ringneck-haikou.dts b/arch/arm64/boot/dts/rockchip/px30-ringneck-haikou.dts index 08a3ad3e7ae9..8792fae50257 100644 --- a/arch/arm64/boot/dts/rockchip/px30-ringneck-haikou.dts +++ b/arch/arm64/boot/dts/rockchip/px30-ringneck-haikou.dts @@ -68,15 +68,15 @@ i2s0-sound { simple-audio-card,format = "i2s"; simple-audio-card,name = "Haikou,I2S-codec"; simple-audio-card,mclk-fs = <512>; + simple-audio-card,frame-master = <&sgtl5000_codec>; + simple-audio-card,bitclock-master = <&sgtl5000_codec>; - simple-audio-card,codec { + sgtl5000_codec: simple-audio-card,codec { clocks = <&sgtl5000_clk>; sound-dai = <&sgtl5000>; }; simple-audio-card,cpu { - bitclock-master; - frame-master; sound-dai = <&i2s0_8ch>; }; };