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Wed, 25 Mar 2026 15:37:18 -0700 (PDT) Received: from localhost.localdomain ([78.241.70.142]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-48720901ac9sm1352285e9.14.2026.03.25.15.37.17 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 25 Mar 2026 15:37:17 -0700 (PDT) From: Jihed Chaibi To: aaro.koskinen@iki.fi, andreas@kemnade.info, khilman@baylibre.com, rogerq@kernel.org, tony@atomide.com Cc: robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, eballetbo@kernel.org, linux-omap@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, jihed.chaibi.dev@gmail.com Subject: [PATCH] ARM: dts: am335x-sl50: Fix audio bitclock and frame master endpoint Date: Wed, 25 Mar 2026 23:34:11 +0100 Message-ID: <20260325223411.123666-1-jihed.chaibi.dev@gmail.com> X-Mailer: git-send-email 2.47.3 Precedence: bulk X-Mailing-List: linux-omap@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit The cpu_endpoint in mcasp0 specifies the TLV320AIC3106 codec as the bitclock and frame master, but the phandles point to the codec's port node (codec_port) rather than its endpoint node (codec_endpoint). audio-graph-card calls simple_util_parse_daifmt() with ep_codec set to the endpoint node (codec_endpoint). The function resolves the bitclock-master phandle and checks whether it equals ep_codec. Since codec_port is the parent of codec_endpoint, not the endpoint itself, the comparison always evaluates to false. This causes the mcasp0 CPU side to be silently configured as bitclock and frame master instead of the codec, which is the opposite of the intended configuration. Fix by pointing bitclock-master and frame-master to codec_endpoint. Fixes: e5f89dbdebc5 ("ARM: dts: am335x-sl50: use audio-graph-card for sound") Signed-off-by: Jihed Chaibi --- arch/arm/boot/dts/ti/omap/am335x-sl50.dts | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/arm/boot/dts/ti/omap/am335x-sl50.dts b/arch/arm/boot/dts/ti/omap/am335x-sl50.dts index 1dc4e344efd6..b3a7f2c91d4e 100644 --- a/arch/arm/boot/dts/ti/omap/am335x-sl50.dts +++ b/arch/arm/boot/dts/ti/omap/am335x-sl50.dts @@ -558,8 +558,8 @@ cpu_endpoint: endpoint { remote-endpoint = <&codec_endpoint>; dai-format = "dsp_b"; - bitclock-master = <&codec_port>; - frame-master = <&codec_port>; + bitclock-master = <&codec_endpoint>; + frame-master = <&codec_endpoint>; bitclock-inversion; clocks = <&audio_mclk>; }; -- 2.47.3