Hi Stephen > > Documentation/devicetree/bindings/sound/simple-card.txt > > explains 1st of_clk_get will be used as "if needed", > > 2nd of_clk_get will be used as "not needed pattern". > > 1st pattern will use specific clock, 2nd pattern will use > > "cpu" or "codec" clock. > > 2nd one was added by someone (I forgot), and many driver is > > based on this feature. > > > > Can you point to some dts file in the kernel that falls into the > devm_get_clk_from_child(dev, dai_of_node, NULL) part?
How about this ? linux/arch/arm/boot/dts/r8a7790-lager.dts :: rsnd_ak4643
