linux-kernel - Re: [PATCH v2] arm64: dts: qcom: sc7180-trogdor: Fix lpass dai link for HDMI

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Date:   Wed, 11 Aug 2021 15:45:51 -0700
From:   Doug Anderson <dianders@...omium.org>
To:     Stephen Boyd <swboyd@...omium.org>
Cc:     Andy Gross <agross@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        LKML <linux-kernel@...r.kernel.org>,
        linux-arm-msm <linux-arm-msm@...r.kernel.org>,
        Srinivasa Rao Mandadapu <srivasam@....qualcomm.com>,
        Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
Subject: Re: [PATCH v2] arm64: dts: qcom: sc7180-trogdor: Fix lpass dai link
 for HDMI

Hi,

On Wed, Aug 11, 2021 at 3:41 PM Stephen Boyd <swboyd@...omium.org> 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: Srinivasa Rao Mandadapu <srivasam@....qualcomm.com>
> Cc: Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
> Cc: Douglas Anderson <dianders@...omium.org>
> Fixes: b22d313e1772 ("arm64: dts: qcom: sc7180-trogdor: Add lpass dai link for HDMI")
> Link: https://lore.kernel.org/r/20210721080549.28822-3-srivasam@qti.qualcomm.com [1]
> Link: https://lore.kernel.org/r/20210726120910.20335-3-srivasam@codeaurora.org [2]
> Signed-off-by: Stephen Boyd <swboyd@...omium.org>
> ---
>
> Changes from v1:
>  - Drop sound-dai-cells
>  - Replace hdmi-primary with hdmi
>
>  arch/arm64/boot/dts/qcom/sc7180-trogdor.dtsi | 9 ++++-----
>  1 file changed, 4 insertions(+), 5 deletions(-)

I'm no audio expert, but this matches v7 except for the bugfix setting
the ID for the `sound-dai` to be LPASS_DP_RX instead of 2, which
matches downstream.

Reviewed-by: Douglas Anderson <dianders@...omium.org>