Hi Simon rsnd sound driver will handle SSIU from v4.21 via DT. Of course it is keeping compatibility, thus, no SSIU settings is no problem. SSIU handles BUSIFn, but rsnd driver had been assumed only BUSIF0 was used. Thus, SSIU / BUSIF0 was attached via SSI automatically, but it was not enough for TDM Split mode. To enable TDM Split mode, we need to select BUSIFn via SSIU. This patch adds SSIU DT settings to r8a7795. If we had SSIU DT settings, existing BUSIF0 settings via SSI is no longer needed. We want to remove it. To avoid git merge timing issue / git bisect issue, I will re-post "remove" patch later (= for v4.22). Please consider 1st patch and ignore 2nd patch so far. Kuninori Morimoto (2): arm64: renesas: r8a7795: add SSIU support for sound arm64: renesas: r8a7795: remove BUSIF0 settings from rcar_sound,ssi arch/arm64/boot/dts/renesas/r8a7795.dtsi | 251 ++++++++++++++++++++++++++++--- 1 file changed, 231 insertions(+), 20 deletions(-) -- 2.7.4
