diff options
| author | Nicolas Frattaroli <frattaroli.nicolas@gmail.com> | 2022-10-25 15:41:30 +0300 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2022-11-25 22:31:05 +0300 |
| commit | d980004e349049a3fcbffc6096d14896f6a122ed (patch) | |
| tree | 43fd86c5a05f5eac19675f7028ce3c5e150b00e0 /sound/soc/rockchip | |
| parent | 1024a5b29e90a18530588b3f161e81cf3fae7dcf (diff) | |
| download | linux-d980004e349049a3fcbffc6096d14896f6a122ed.tar.xz | |
ASoC: rockchip: i2s_tdm: Make the grf property optional
Only IO Multiplex and two TRCM modes need access to the GRF, so
making it a hard requirement is not a wise idea, as it complicates
support for newer SoCs which do not do these things.
Signed-off-by: Nicolas Frattaroli <frattaroli.nicolas@gmail.com>
Link: https://lore.kernel.org/r/20221025124132.399729-3-frattaroli.nicolas@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/rockchip')
| -rw-r--r-- | sound/soc/rockchip/rockchip_i2s_tdm.c | 16 |
1 files changed, 12 insertions, 4 deletions
diff --git a/sound/soc/rockchip/rockchip_i2s_tdm.c b/sound/soc/rockchip/rockchip_i2s_tdm.c index 2550bd2a5e78..917f17107891 100644 --- a/sound/soc/rockchip/rockchip_i2s_tdm.c +++ b/sound/soc/rockchip/rockchip_i2s_tdm.c @@ -756,6 +756,12 @@ static int rockchip_i2s_io_multiplex(struct snd_pcm_substream *substream, if (!i2s_tdm->io_multiplex) return 0; + if (IS_ERR_OR_NULL(i2s_tdm->grf)) { + dev_err(i2s_tdm->dev, + "io multiplex not supported for this device\n"); + return -EINVAL; + } + if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) { struct snd_pcm_str *playback_str = &substream->pcm->streams[SNDRV_PCM_STREAM_PLAYBACK]; @@ -1222,6 +1228,12 @@ static int common_soc_init(struct device *dev, u32 addr) if (trcm == TRCM_TXRX) return 0; + if (IS_ERR_OR_NULL(i2s_tdm->grf)) { + dev_err(i2s_tdm->dev, + "no grf present but non-txrx TRCM specified\n"); + return -EINVAL; + } + for (i = 0; i < i2s_tdm->soc_data->config_count; i++) { if (addr != configs[i].addr) continue; @@ -1568,10 +1580,6 @@ static int rockchip_i2s_tdm_probe(struct platform_device *pdev) return ret; i2s_tdm->grf = syscon_regmap_lookup_by_phandle(node, "rockchip,grf"); - if (IS_ERR(i2s_tdm->grf)) - return dev_err_probe(i2s_tdm->dev, PTR_ERR(i2s_tdm->grf), - "Error in rockchip,grf\n"); - i2s_tdm->tx_reset = devm_reset_control_get_optional_exclusive(&pdev->dev, "tx-m"); if (IS_ERR(i2s_tdm->tx_reset)) { |