arm64: dts: verdin-imx8mm: fix dahlia audio playback

[ Upstream commit 0d1d030f00f3f3eea04017cbd50ffe44a2842ebc ]

Set optional `simple-audio-card,mclk-fs` parameter to ensure a proper
clock to the wm8904 audio codec. Without this change with an audio
stream rate of 44.1 kHz the playback is completely distorted.

Fixes: 6a57f224f734 ("arm64: dts: freescale: add initial support for verdin imx8m mini")
Signed-off-by: Emanuele Ghidoli <emanuele.ghidoli@toradex.com>
Signed-off-by: Francesco Dolcini <francesco.dolcini@toradex.com>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/arch/arm64/boot/dts/freescale/imx8mm-verdin-dahlia.dtsi b/arch/arm64/boot/dts/freescale/imx8mm-verdin-dahlia.dtsi
index c2a5c2f..7c3f5c5 100644 (file)
--- a/arch/arm64/boot/dts/freescale/imx8mm-verdin-dahlia.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mm-verdin-dahlia.dtsi
@@ -9,6 +9,7 @@
                simple-audio-card,bitclock-master = <&dailink_master>;
                simple-audio-card,format = "i2s";
                simple-audio-card,frame-master = <&dailink_master>;
+               simple-audio-card,mclk-fs = <256>;
                simple-audio-card,name = "imx8mm-wm8904";
                simple-audio-card,routing =
                        "Headphone Jack", "HPOUTL",