Re: [PATCH v3 4/5] ASoC: qcom: Add support for audio over DP

[Stephen Boyd]

Quoting Srinivasa Rao Mandadapu (2020-08-30 23:39:23)
> diff --git a/sound/soc/qcom/lpass-sc7180.c b/sound/soc/qcom/lpass-sc7180.c
> index 167bf2c..cea7ae7 100644
> --- a/sound/soc/qcom/lpass-sc7180.c
> +++ b/sound/soc/qcom/lpass-sc7180.c
> @@ -190,15 +232,92 @@ static struct lpass_variant sc7180_data = {
>                                    "mi2s-bit-clk0",
>                                    "mi2s-bit-clk1",
>                                 },
> +       .id                             = I2S_INTERFACE,
>         .init                   = sc7180_lpass_init,
>         .exit                   = sc7180_lpass_exit,
>         .alloc_dma_channel      = sc7180_lpass_alloc_dma_channel,
>         .free_dma_channel       = sc7180_lpass_free_dma_channel,
>  };
>  
> +static struct lpass_variant sc7180_hdmi_data = {

Can this be const?

> +       .hdmi_tx_ctl_addr       = 0x1000,
> +       .hdmi_legacy_addr       = 0x1008,
> +       .hdmi_vbit_addr         = 0x610c0,
> +       .hdmi_ch_lsb_addr       = 0x61048,
> +       .hdmi_ch_msb_addr       = 0x6104c,
> +       .ch_stride              = 0x8,
> +       .hdmi_parity_addr       = 0x61034,
> +       .hdmi_dmactl_addr       = 0x61038,
> +       .hdmi_dma_stride        = 0x4,
> +       .hdmi_DP_addr           = 0x610c8,
> +       .hdmi_sstream_addr      = 0x6101c,
> +       .irq_reg_base           = 0x63000,
> +       .irq_ports              = 1,
> +       .rdma_reg_base          = 0x64000,
> +       .rdma_reg_stride        = 0x1000,
> +       .rdma_channels          = 4,
> +
> +       .rdma_dyncclk           = REG_FIELD_ID(0x64000, 14, 14, 4, 0x1000),
> +       .rdma_bursten           = REG_FIELD_ID(0x64000, 13, 13, 4, 0x1000),
> +       .rdma_burst8            = REG_FIELD_ID(0x64000, 15, 15, 4, 0x1000),
> +       .rdma_burst16           = REG_FIELD_ID(0x64000, 16, 16, 4, 0x1000),
> +       .rdma_dynburst          = REG_FIELD_ID(0x64000, 18, 18, 4, 0x1000),
> +       .rdma_wpscnt            = REG_FIELD_ID(0x64000, 10, 12, 4, 0x1000),
> +       .rdma_fifowm            = REG_FIELD_ID(0x64000, 1, 5, 4, 0x1000),
> +       .rdma_enable            = REG_FIELD_ID(0x64000, 0, 0, 4, 0x1000),
> +
> +       .sstream_en             = REG_FIELD(0x6101c, 0, 0),
> +       .dma_sel                        = REG_FIELD(0x6101c, 1, 2),
> +       .auto_bbit_en   = REG_FIELD(0x6101c, 3, 3),
> +       .layout                 = REG_FIELD(0x6101c, 4, 4),
> +       .layout_sp              = REG_FIELD(0x6101c, 5, 8),
> +       .set_sp_on_en   = REG_FIELD(0x6101c, 10, 10),
> +       .dp_audio               = REG_FIELD(0x6101c, 11, 11),
> +       .dp_staffing_en = REG_FIELD(0x6101c, 12, 12),
> +       .dp_sp_b_hw_en  = REG_FIELD(0x6101c, 13, 13),
> +
> +       .mute                   = REG_FIELD(0x610c8, 0, 0),
> +       .as_sdp_cc              = REG_FIELD(0x610c8, 1, 3),
> +       .as_sdp_ct              = REG_FIELD(0x610c8, 4, 7),
> +       .aif_db4                        = REG_FIELD(0x610c8, 8, 15),
> +       .frequency              = REG_FIELD(0x610c8, 16, 21),
> +       .mst_index              = REG_FIELD(0x610c8, 28, 29),
> +       .dptx_index             = REG_FIELD(0x610c8, 30, 31),
> +
> +       .soft_reset             = REG_FIELD(0x1000, 31, 31),
> +       .force_reset    = REG_FIELD(0x1000, 30, 30),
> +
> +       .use_hw_chs             = REG_FIELD(0x61038, 0, 0),
> +       .use_hw_usr             = REG_FIELD(0x61038, 1, 1),
> +       .hw_chs_sel             = REG_FIELD(0x61038, 2, 4),
> +       .hw_usr_sel             = REG_FIELD(0x61038, 5, 6),
> +
> +       .replace_vbit   = REG_FIELD(0x610c0, 0, 0),
> +       .vbit_stream    = REG_FIELD(0x610c0, 1, 1),
> +
> +       .legacy_en              =  REG_FIELD(0x1008, 0, 0),
> +       .calc_en                =  REG_FIELD(0x61034, 0, 0),
> +       .lsb_bits               =  REG_FIELD(0x61048, 0, 31),
> +       .msb_bits               =  REG_FIELD(0x6104c, 0, 31),
> +
> +       .clk_name               = (const char*[]) {
> +                                       "pcnoc-sway-clk",
> +                                       "audio-core",
> +                                       "pcnoc-mport-clk",
> +                               },
> +       .num_clks               = 3,
> +       .id                     = HDMI_INTERFACE,
> +       .dai_driver             = sc7180_lpass_cpu_hdmi_dai_driver,
> +       .num_dai                = ARRAY_SIZE(sc7180_lpass_cpu_hdmi_dai_driver),
> +       .init                   = sc7180_lpass_init,
> +       .exit                   = sc7180_lpass_exit,
> +       .alloc_dma_channel = sc7180_lpass_alloc_hdmi_dma_channel,
> +       .free_dma_channel = sc7180_lpass_free_hdmi_dma_channel,
> +
> +};

Add a newline here?

>  static const struct of_device_id sc7180_lpass_cpu_device_id[] = {
>         {.compatible = "qcom,sc7180-lpass-cpu", .data = &sc7180_data},
> -       {}
> +       {.compatible = "qcom,sc7180-lpass-hdmi", .data = &sc7180_hdmi_data}

This most likely needs to keep the sentinel around so that a match can
be made or stop if nothing is found.

>  };
>