.. | .. |
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19 | 19 | #include <sound/tlv.h> |
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20 | 20 | |
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21 | 21 | #include "rockchip_sai.h" |
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| 22 | +#include "rockchip_dlp_pcm.h" |
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| 23 | +#include "rockchip_utils.h" |
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22 | 24 | |
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23 | 25 | #define DRV_NAME "rockchip-sai" |
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24 | 26 | |
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25 | | -#define CLK_SHIFT_RATE_HZ_MAX 1 /* 1 Hz */ |
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| 27 | +#define CLK_SHIFT_RATE_HZ_MAX 5 |
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26 | 28 | #define FW_RATIO_MAX 8 |
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27 | 29 | #define FW_RATIO_MIN 1 |
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28 | 30 | #define MAXBURST_PER_FIFO 8 |
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.. | .. |
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422 | 424 | { |
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423 | 425 | struct rk_sai_dev *sai = snd_soc_dai_get_drvdata(dai); |
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424 | 426 | struct snd_dmaengine_dai_dma_data *dma_data; |
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425 | | - unsigned int mclk_rate, bclk_rate, div_bclk; |
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| 427 | + unsigned int mclk_rate, mclk_req_rate, bclk_rate, div_bclk; |
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426 | 428 | unsigned int ch_per_lane, lanes, slot_width; |
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427 | | - unsigned int val, fscr, reg; |
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| 429 | + unsigned int val, fscr, reg, fifo; |
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428 | 430 | |
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429 | 431 | dma_data = snd_soc_dai_get_dma_data(dai, substream); |
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430 | 432 | dma_data->maxburst = MAXBURST_PER_FIFO * params_channels(params) / 2; |
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431 | 433 | |
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432 | 434 | lanes = rockchip_sai_lanes_auto(params, dai); |
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433 | 435 | |
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| 436 | + regmap_read(sai->regmap, SAI_DMACR, &val); |
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| 437 | + |
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434 | 438 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { |
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435 | 439 | reg = SAI_TXCR; |
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436 | 440 | if (sai->tx_lanes) |
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437 | 441 | lanes = sai->tx_lanes; |
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| 442 | + fifo = SAI_DMACR_TDL_V(val) * lanes; |
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438 | 443 | } else { |
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439 | 444 | reg = SAI_RXCR; |
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440 | 445 | if (sai->rx_lanes) |
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441 | 446 | lanes = sai->rx_lanes; |
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| 447 | + fifo = SAI_DMACR_TDL_V(val) * lanes; |
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442 | 448 | } |
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443 | 449 | |
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444 | 450 | switch (params_format(params)) { |
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.. | .. |
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497 | 503 | if (sai->is_clk_auto) |
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498 | 504 | clk_set_rate(sai->mclk, bclk_rate); |
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499 | 505 | mclk_rate = clk_get_rate(sai->mclk); |
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500 | | - if (mclk_rate < bclk_rate - CLK_SHIFT_RATE_HZ_MAX || |
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501 | | - mclk_rate > bclk_rate + CLK_SHIFT_RATE_HZ_MAX) { |
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| 506 | + div_bclk = DIV_ROUND_CLOSEST(mclk_rate, bclk_rate); |
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| 507 | + mclk_req_rate = bclk_rate * div_bclk; |
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| 508 | + |
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| 509 | + if (mclk_rate < mclk_req_rate - CLK_SHIFT_RATE_HZ_MAX || |
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| 510 | + mclk_rate > mclk_req_rate + CLK_SHIFT_RATE_HZ_MAX) { |
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502 | 511 | dev_err(sai->dev, "Mismatch mclk: %u, expected %u (+/- %dHz)\n", |
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503 | | - mclk_rate, bclk_rate, CLK_SHIFT_RATE_HZ_MAX); |
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| 512 | + mclk_rate, mclk_req_rate, CLK_SHIFT_RATE_HZ_MAX); |
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504 | 513 | return -EINVAL; |
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505 | 514 | } |
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506 | | - |
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507 | | - div_bclk = DIV_ROUND_CLOSEST(mclk_rate, bclk_rate); |
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508 | 515 | |
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509 | 516 | regmap_update_bits(sai->regmap, SAI_CKR, SAI_CKR_MDIV_MASK, |
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510 | 517 | SAI_CKR_MDIV(div_bclk)); |
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511 | 518 | } |
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| 519 | + |
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| 520 | + rockchip_utils_get_performance(substream, params, dai, fifo); |
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| 521 | + |
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| 522 | + return 0; |
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| 523 | +} |
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| 524 | + |
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| 525 | +static int rockchip_sai_hw_free(struct snd_pcm_substream *substream, |
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| 526 | + struct snd_soc_dai *dai) |
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| 527 | +{ |
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| 528 | + rockchip_utils_put_performance(substream, dai); |
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512 | 529 | |
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513 | 530 | return 0; |
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514 | 531 | } |
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.. | .. |
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639 | 656 | .startup = rockchip_sai_startup, |
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640 | 657 | .shutdown = rockchip_sai_shutdown, |
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641 | 658 | .hw_params = rockchip_sai_hw_params, |
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| 659 | + .hw_free = rockchip_sai_hw_free, |
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642 | 660 | .set_sysclk = rockchip_sai_set_sysclk, |
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643 | 661 | .set_fmt = rockchip_sai_set_fmt, |
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644 | 662 | .prepare = rockchip_sai_prepare, |
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.. | .. |
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879 | 897 | "From PATH0", "From PATH1", "From PATH2", "From PATH3" }; |
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880 | 898 | |
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881 | 899 | /* TXCR */ |
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882 | | -static SOC_ENUM_SINGLE_DECL(tsft_enum, SAI_TXCR, 22, edge_shift_text); |
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| 900 | +static SOC_ENUM_SINGLE_DECL(__maybe_unused tsft_enum, SAI_TXCR, 22, edge_shift_text); |
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883 | 901 | static const struct soc_enum tx_lanes_enum = |
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884 | 902 | SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(tx_lanes_text), tx_lanes_text); |
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885 | | -static SOC_ENUM_SINGLE_DECL(tsjm_enum, SAI_TXCR, 19, sjm_text); |
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886 | | -static SOC_ENUM_SINGLE_DECL(tfbm_enum, SAI_TXCR, 18, fbm_text); |
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887 | | -static SOC_ENUM_SINGLE_DECL(tvdj_enum, SAI_TXCR, 10, vdj_text); |
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888 | | -static SOC_ENUM_SINGLE_DECL(tsbw_enum, SAI_TXCR, 5, sbw_text); |
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| 903 | +static SOC_ENUM_SINGLE_DECL(__maybe_unused tsjm_enum, SAI_TXCR, 19, sjm_text); |
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| 904 | +static SOC_ENUM_SINGLE_DECL(__maybe_unused tfbm_enum, SAI_TXCR, 18, fbm_text); |
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| 905 | +static SOC_ENUM_SINGLE_DECL(__maybe_unused tvdj_enum, SAI_TXCR, 10, vdj_text); |
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| 906 | +static SOC_ENUM_SINGLE_DECL(__maybe_unused tsbw_enum, SAI_TXCR, 5, sbw_text); |
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889 | 907 | |
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890 | 908 | /* FSCR */ |
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891 | | -static SOC_ENUM_SINGLE_DECL(edge_enum, SAI_FSCR, 24, edge_text); |
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892 | | -static const struct soc_enum fpw_enum = |
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| 909 | +static SOC_ENUM_SINGLE_DECL(__maybe_unused edge_enum, SAI_FSCR, 24, edge_text); |
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| 910 | +static const struct soc_enum __maybe_unused fpw_enum = |
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893 | 911 | SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(fpw_text), fpw_text); |
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894 | | -static const struct soc_enum fw_ratio_enum = |
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| 912 | +static const struct soc_enum __maybe_unused fw_ratio_enum = |
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895 | 913 | SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(fw_ratio_text), fw_ratio_text); |
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896 | 914 | |
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897 | 915 | /* RXCR */ |
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898 | | -static SOC_ENUM_SINGLE_DECL(rsft_enum, SAI_RXCR, 22, edge_shift_text); |
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| 916 | +static SOC_ENUM_SINGLE_DECL(__maybe_unused rsft_enum, SAI_RXCR, 22, edge_shift_text); |
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899 | 917 | static const struct soc_enum rx_lanes_enum = |
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900 | 918 | SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(rx_lanes_text), rx_lanes_text); |
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901 | | -static SOC_ENUM_SINGLE_DECL(rsjm_enum, SAI_RXCR, 19, sjm_text); |
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902 | | -static SOC_ENUM_SINGLE_DECL(rfbm_enum, SAI_RXCR, 18, fbm_text); |
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903 | | -static SOC_ENUM_SINGLE_DECL(rvdj_enum, SAI_RXCR, 10, vdj_text); |
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904 | | -static SOC_ENUM_SINGLE_DECL(rsbw_enum, SAI_RXCR, 5, sbw_text); |
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| 919 | +static SOC_ENUM_SINGLE_DECL(__maybe_unused rsjm_enum, SAI_RXCR, 19, sjm_text); |
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| 920 | +static SOC_ENUM_SINGLE_DECL(__maybe_unused rfbm_enum, SAI_RXCR, 18, fbm_text); |
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| 921 | +static SOC_ENUM_SINGLE_DECL(__maybe_unused rvdj_enum, SAI_RXCR, 10, vdj_text); |
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| 922 | +static SOC_ENUM_SINGLE_DECL(__maybe_unused rsbw_enum, SAI_RXCR, 5, sbw_text); |
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905 | 923 | |
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906 | 924 | /* MONO_CR */ |
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907 | 925 | static SOC_ENUM_SINGLE_DECL(rmono_switch, SAI_MONO_CR, 1, mono_text); |
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908 | 926 | static SOC_ENUM_SINGLE_DECL(tmono_switch, SAI_MONO_CR, 0, mono_text); |
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909 | 927 | |
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910 | 928 | /* CKR */ |
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911 | | -static const struct soc_enum mss_switch = |
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| 929 | +static const struct soc_enum __maybe_unused mss_switch = |
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912 | 930 | SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(mss_text), mss_text); |
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913 | | -static SOC_ENUM_SINGLE_DECL(sp_switch, SAI_CKR, 1, ckp_text); |
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914 | | -static SOC_ENUM_SINGLE_DECL(fp_switch, SAI_CKR, 0, ckp_text); |
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| 931 | +static SOC_ENUM_SINGLE_DECL(__maybe_unused sp_switch, SAI_CKR, 1, ckp_text); |
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| 932 | +static SOC_ENUM_SINGLE_DECL(__maybe_unused fp_switch, SAI_CKR, 0, ckp_text); |
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915 | 933 | |
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916 | 934 | /* PATH_SEL */ |
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917 | 935 | static SOC_ENUM_SINGLE_DECL(lp3_enum, SAI_PATH_SEL, 28, lpx_text); |
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.. | .. |
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1344 | 1362 | return ret; |
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1345 | 1363 | } |
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1346 | 1364 | |
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| 1365 | +static int rockchip_sai_get_fifo_count(struct device *dev, |
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| 1366 | + struct snd_pcm_substream *substream) |
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| 1367 | +{ |
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| 1368 | + struct rk_sai_dev *sai = dev_get_drvdata(dev); |
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| 1369 | + int val = 0; |
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| 1370 | + |
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| 1371 | + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) |
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| 1372 | + regmap_read(sai->regmap, SAI_TXFIFOLR, &val); |
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| 1373 | + else |
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| 1374 | + regmap_read(sai->regmap, SAI_RXFIFOLR, &val); |
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| 1375 | + |
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| 1376 | + val = ((val & SAI_FIFOLR_XFL3_MASK) >> SAI_FIFOLR_XFL3_SHIFT) + |
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| 1377 | + ((val & SAI_FIFOLR_XFL2_MASK) >> SAI_FIFOLR_XFL2_SHIFT) + |
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| 1378 | + ((val & SAI_FIFOLR_XFL1_MASK) >> SAI_FIFOLR_XFL1_SHIFT) + |
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| 1379 | + ((val & SAI_FIFOLR_XFL0_MASK) >> SAI_FIFOLR_XFL0_SHIFT); |
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| 1380 | + |
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| 1381 | + return val; |
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| 1382 | +} |
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| 1383 | + |
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| 1384 | +static const struct snd_dlp_config dconfig = { |
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| 1385 | + .get_fifo_count = rockchip_sai_get_fifo_count, |
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| 1386 | +}; |
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| 1387 | + |
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1347 | 1388 | static int rockchip_sai_probe(struct platform_device *pdev) |
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1348 | 1389 | { |
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1349 | 1390 | struct device_node *node = pdev->dev.of_node; |
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.. | .. |
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1438 | 1479 | return 0; |
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1439 | 1480 | } |
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1440 | 1481 | |
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1441 | | - ret = devm_snd_dmaengine_pcm_register(&pdev->dev, NULL, 0); |
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| 1482 | + if (device_property_read_bool(&pdev->dev, "rockchip,digital-loopback")) |
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| 1483 | + ret = devm_snd_dmaengine_dlp_register(&pdev->dev, &dconfig); |
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| 1484 | + else |
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| 1485 | + ret = devm_snd_dmaengine_pcm_register(&pdev->dev, NULL, 0); |
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| 1486 | + |
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1442 | 1487 | if (ret) |
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1443 | 1488 | goto err_runtime_suspend; |
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1444 | 1489 | |
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