Re: [PATCH] arm64: dts: qcom: sc7180-trogdor: Fix lpass dai link for HDMI

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Hi,

On Wed, Aug 11, 2021 at 12:47 PM Stephen Boyd <swboyd@xxxxxxxxxxxx> wrote:
>
> This should be the dai for display port. Without this set properly we
> fail to get audio routed through external displays on trogdor. It looks
> like we picked up v4[1] of this patch when there was a v7[2]. The v7
> patch still had the wrong sound-dai but at least we can fix all this up
> and audio works.
>
> Cc: V Sujith Kumar Reddy <vsujithk@xxxxxxxxxxxxxx>
> Cc: Srinivasa Rao Mandadapu <srivasam@xxxxxxxxxxxxxxxx>
> Cc: Srinivas Kandagatla <srinivas.kandagatla@xxxxxxxxxx>
> Fixes: b22d313e1772 ("arm64: dts: qcom: sc7180-trogdor: Add lpass dai link for HDMI")
> Link: https://lore.kernel.org/r/20210721080549.28822-3-srivasam@xxxxxxxxxxxxxxxx [1]
> Link: https://lore.kernel.org/r/20210726120910.20335-3-srivasam@xxxxxxxxxxxxxx [2]
> Signed-off-by: Stephen Boyd <swboyd@xxxxxxxxxxxx>
> ---
>  arch/arm64/boot/dts/qcom/sc7180-trogdor.dtsi | 8 ++++----
>  1 file changed, 4 insertions(+), 4 deletions(-)

There were other changes between v4 and v7. Do we want to take those
too? Basically two things discussed in my response to v5 [1].

1. I think we don't need `#sound-dai-cells = <0>;`

2. It seemed marginally better to call the node `hdmi@5`, not `hdmi-primary@5`.

Also, in case you're comparing to v7, it looks like v7 still had a
bug, though, that your patch fixes. It still had "sound-dai =
<&lpass_cpu 2>;"

So confusing!

[1] https://lore.kernel.org/linux-arm-msm/CAD=FV=W3X8W90vPdrDAymzTKj-J7QPyn4ukaLSOhEkCme3+r_Q@xxxxxxxxxxxxxx/

-Doug



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