From: Chen-Yu Tsai Date: Wed, 5 Dec 2018 10:11:52 +0000 (+0800) Subject: ARM: dts: sun8i: a33: Drop audio codec oversampling rate to 128 fs X-Git-Tag: v5.15~7280^2~2^2~8 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=7ff33bd321b1a1092ccf4b80a1742528754ecc30;p=platform%2Fkernel%2Flinux-starfive.git ARM: dts: sun8i: a33: Drop audio codec oversampling rate to 128 fs The current oversampling rate of 512 means that for 48 kHz 16 bit stereo, the MCLK is running at the same rate as the module clock, so there is no head room to support higher sampling rates. The codec however supports up to 192 kHz for playback. This patch drops the oversampling rate from 512 to 128, so that 192 kHz audio can be played back directly without downsampling. Ideally we should be using different oversampling rates for different sampling rates, but that's not possible without a platform-specific machine driver. Fixes: 870f1bd1f5e9 ("ARM: dts: sun8i: Add audio codec, dai and card for A33") Signed-off-by: Chen-Yu Tsai Signed-off-by: Maxime Ripard --- diff --git a/arch/arm/boot/dts/sun8i-a33.dtsi b/arch/arm/boot/dts/sun8i-a33.dtsi index 9ac4fae..626152c 100644 --- a/arch/arm/boot/dts/sun8i-a33.dtsi +++ b/arch/arm/boot/dts/sun8i-a33.dtsi @@ -192,7 +192,7 @@ simple-audio-card,format = "i2s"; simple-audio-card,frame-master = <&link_codec>; simple-audio-card,bitclock-master = <&link_codec>; - simple-audio-card,mclk-fs = <512>; + simple-audio-card,mclk-fs = <128>; simple-audio-card,aux-devs = <&codec_analog>; simple-audio-card,routing = "Left DAC", "AIF1 Slot 0 Left",