diff options
| author | Chancel Liu <chancel.liu@nxp.com> | 2024-11-26 20:54:39 +0900 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2024-12-09 13:11:11 +0000 |
| commit | b622b677d255b41cbfce20b66535723933a6b640 (patch) | |
| tree | 2d5eafda2d53bdfbfbdd9155d6a13ffb0c7dadb6 | |
| parent | daf7a173fc7c4b652f3fe69d3b5aa520976a7d63 (diff) | |
ASoC: fsl_xcvr: Add sample rate constraint
Platforms like i.MX93/91 only have one audio PLL. Some sample rates are
not supported. If the PLL source is used for 8kHz series rates, then
11kHz series rates can't be supported. Use fsl_asoc_constrain_rates()
to constrain rates according to PLL sources. This constraint is merely
applicable to playback cases on SPDIF only platforms.
Signed-off-by: Chancel Liu <chancel.liu@nxp.com>
Link: https://patch.msgid.link/20241126115440.3929061-4-chancel.liu@nxp.com
Acked-by: Shengjiu Wang <shengjiu.wang@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
| -rw-r--r-- | sound/soc/fsl/fsl_xcvr.c | 20 |
1 files changed, 18 insertions, 2 deletions
diff --git a/sound/soc/fsl/fsl_xcvr.c b/sound/soc/fsl/fsl_xcvr.c index 8150f877e1ae..051add793022 100644 --- a/sound/soc/fsl/fsl_xcvr.c +++ b/sound/soc/fsl/fsl_xcvr.c @@ -19,6 +19,7 @@ #include "imx-pcm.h" #define FSL_XCVR_CAPDS_SIZE 256 +#define SPDIF_NUM_RATES 7 enum fsl_xcvr_pll_verison { PLL_MX8MP, @@ -57,6 +58,8 @@ struct fsl_xcvr { u8 cap_ds[FSL_XCVR_CAPDS_SIZE]; struct work_struct work_rst; spinlock_t lock; /* Protect hw_reset and trigger */ + struct snd_pcm_hw_constraint_list spdif_constr_rates; + u32 spdif_constr_rates_list[SPDIF_NUM_RATES]; }; static const struct fsl_xcvr_pll_conf { @@ -640,8 +643,12 @@ static int fsl_xcvr_startup(struct snd_pcm_substream *substream, switch (xcvr->mode) { case FSL_XCVR_MODE_SPDIF: case FSL_XCVR_MODE_ARC: - ret = fsl_xcvr_constr(substream, &fsl_xcvr_spdif_channels_constr, - &fsl_xcvr_spdif_rates_constr); + if (xcvr->soc_data->spdif_only && tx) + ret = fsl_xcvr_constr(substream, &fsl_xcvr_spdif_channels_constr, + &xcvr->spdif_constr_rates); + else + ret = fsl_xcvr_constr(substream, &fsl_xcvr_spdif_channels_constr, + &fsl_xcvr_spdif_rates_constr); break; case FSL_XCVR_MODE_EARC: ret = fsl_xcvr_constr(substream, &fsl_xcvr_earc_channels_constr, @@ -1546,6 +1553,15 @@ static int fsl_xcvr_probe(struct platform_device *pdev) fsl_asoc_get_pll_clocks(dev, &xcvr->pll8k_clk, &xcvr->pll11k_clk); + if (xcvr->soc_data->spdif_only) { + if (!(xcvr->pll8k_clk || xcvr->pll11k_clk)) + xcvr->pll8k_clk = xcvr->phy_clk; + fsl_asoc_constrain_rates(&xcvr->spdif_constr_rates, + &fsl_xcvr_spdif_rates_constr, + xcvr->pll8k_clk, xcvr->pll11k_clk, NULL, + xcvr->spdif_constr_rates_list); + } + xcvr->ram_addr = devm_platform_ioremap_resource_byname(pdev, "ram"); if (IS_ERR(xcvr->ram_addr)) return PTR_ERR(xcvr->ram_addr); |