From: V Sujith Kumar Reddy vsujithk@codeaurora.org
Add support for audio playback over DP in lpass sc7180 platform driver. Add lpass_variant structure for hdmi data configuaration.
Signed-off-by: Srinivasa Rao srivasam@codeaurora.org Signed-off-by: V Sujith Kumar Reddy vsujithk@codeaurora.org --- sound/soc/qcom/lpass-sc7180.c | 121 +++++++++++++++++++++++++++++++++++++++++- 1 file changed, 120 insertions(+), 1 deletion(-)
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 @@ -62,6 +62,24 @@ static struct snd_soc_dai_driver sc7180_lpass_cpu_dai_driver[] = { }, };
+static struct snd_soc_dai_driver sc7180_lpass_cpu_hdmi_dai_driver[] = { + [0] = { + .id = HDMI, + .name = "Hdmi", + .playback = { + .stream_name = "Hdmi Playback", + .formats = SNDRV_PCM_FMTBIT_S24_3LE | + SNDRV_PCM_FMTBIT_S24_LE, + .rates = SNDRV_PCM_RATE_48000, + .rate_min = 48000, + .rate_max = 48000, + .channels_min = 2, + .channels_max = 2, + }, + .ops = &asoc_qcom_lpass_hdmi_dai_ops, + }, +}; + static int sc7180_lpass_alloc_dma_channel(struct lpass_data *drvdata, int direction) { @@ -88,13 +106,37 @@ static int sc7180_lpass_alloc_dma_channel(struct lpass_data *drvdata,
return chan; } +static int sc7180_lpass_alloc_hdmi_dma_channel(struct lpass_data *drvdata, + int direction) +{ + struct lpass_variant *v = drvdata->variant; + int chan = 0; + + if (direction == SNDRV_PCM_STREAM_PLAYBACK) { + chan = find_first_zero_bit(&drvdata->dma_ch_bit_map, + v->rdma_channels); + + if (chan >= v->rdma_channels) + return -EBUSY; + } + set_bit(chan, &drvdata->dma_ch_bit_map); + + return chan;
+} static int sc7180_lpass_free_dma_channel(struct lpass_data *drvdata, int chan) { clear_bit(chan, &drvdata->dma_ch_bit_map);
return 0; } +static int sc7180_lpass_free_hdmi_dma_channel(struct lpass_data *drvdata, int chan) +{ + clear_bit(chan, &drvdata->dma_ch_bit_map); + + return 0; +} +
static int sc7180_lpass_init(struct platform_device *pdev) { @@ -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 = { + .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, + +}; 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} };
static struct platform_driver sc7180_lpass_cpu_platform_driver = {