Using DMA in TDM

The following code block provides an example of the TDM device tree in the case when DMA is used in the TDM driver.

tdm: tdm@10090000 {
                        compatible = "starfive,jh7110-tdm";
                        reg = <0x0 0x10090000 0x0 0x1000>;
                        reg-names = "tdm";
                        clocks = <&clkgen JH7110_AHB0>,
                                 <&clkgen JH7110_TDM_CLK_AHB>,
                                 <&clkgen JH7110_APB0>,
                                 <&clkgen JH7110_TDM_CLK_APB>,
                                 <&clkgen JH7110_TDM_INTERNAL>,
                                 <&tdm_ext>,
                                 <&clkgen JH7110_TDM_CLK_TDM>,
                                 <&clkgen JH7110_MCLK_INNER>;
                        clock-names = "clk_ahb0", "clk_tdm_ahb",
                                      "clk_apb0", "clk_tdm_apb",
                                      "clk_tdm_internal", "clk_tdm_ext",
                                      "clk_tdm", "mclk_inner";
                        resets = <&rstgen RSTN_U0_TDM16SLOT_AHB>,
                                 <&rstgen RSTN_U0_TDM16SLOT_APB>,
                                 <&rstgen RSTN_U0_TDM16SLOT_TDM>;
                        reset-names = "tdm_ahb", "tdm_apb", "tdm_rst";
                        dmas = <&dma 20 1>, <&dma 21 1>;
                        dma-names = "rx","tx";
                        #sound-dai-cells = <0>;
                        status = "disabled";
           };