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ARM: dts: stm32: add system-clock-direction-out on stm32mp15xx-dkx

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The commit 5725bce709
("ASoC: simple-card-utils: Unify clock direction by clk_direction")
corrupts the audio on STM32MP15 DK sound cards.
The parent clock is not correctly set, because set_sai_ck_rate() is not
executed in stm32_sai_set_sysclk() callback.
This occurs because set_sysclk() is called with the wrong direction,
SND_SOC_CLOCK_IN instead of SND_SOC_CLOCK_OUT.

Add system-clock-direction-out property in SAI2A endpoint node of
STM32MP15XX-DKX device tree, to specify the MCLK clock direction.

Signed-off-by: Olivier Moysan <olivier.moysan@foss.st.com>
Link: https://lore.kernel.org/r/20250521150418.488152-1-olivier.moysan@foss.st.com
Signed-off-by: Alexandre Torgue <alexandre.torgue@foss.st.com>
This commit is contained in:
Olivier Moysan 2025-05-21 17:04:18 +02:00 committed by Alexandre Torgue
parent 9259e150de
commit ebf53abe62
1 changed files with 1 additions and 0 deletions
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arch/arm/boot/dts/st/stm32mp15xx-dkx.dtsi
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@ -515,6 +515,7 @@ sai2a_endpoint: endpoint {
remote-endpoint = <&cs42l51_tx_endpoint>;
dai-format = "i2s";
mclk-fs = <256>;
system-clock-direction-out;
dai-tdm-slot-num = <2>;
dai-tdm-slot-width = <32>;
};