diff options
| author | Peter Ujfalusi <peter.ujfalusi@ti.com> | 2015-06-04 16:04:22 +0300 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2015-06-05 20:53:33 +0300 |
| commit | 9d87a8888c0b2a3b2ec1204e0488935f021d6968 (patch) | |
| tree | d6ec04f81a0cbd36125220d96a5aa4e145ea234b /sound/soc/codecs/tas2552.c | |
| parent | 3715eda766a290fb8682bc2aabb2f23386f534de (diff) | |
| download | linux-9d87a8888c0b2a3b2ec1204e0488935f021d6968.tar.xz | |
ASoC: tas2552: Add support for pll and pdm source clock selection
Instead of hard wiring the PLL_CLKIN and PDM_CLK to be sourced from BCLK add
proper clock configuration via the set_dai_sysclk callback.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/codecs/tas2552.c')
| -rw-r--r-- | sound/soc/codecs/tas2552.c | 33 |
1 files changed, 29 insertions, 4 deletions
diff --git a/sound/soc/codecs/tas2552.c b/sound/soc/codecs/tas2552.c index e29b29b279d9..34495241c674 100644 --- a/sound/soc/codecs/tas2552.c +++ b/sound/soc/codecs/tas2552.c @@ -34,6 +34,7 @@ #include <sound/soc-dapm.h> #include <sound/tlv.h> #include <sound/tas2552-plat.h> +#include <dt-bindings/sound/tas2552.h> #include "tas2552.h" @@ -76,6 +77,7 @@ struct tas2552_data { struct gpio_desc *enable_gpio; unsigned char regs[TAS2552_VBAT_DATA]; unsigned int pll_clkin; + unsigned int pdm_clk; }; /* Input mux controls */ @@ -244,8 +246,33 @@ static int tas2552_set_dai_sysclk(struct snd_soc_dai *dai, int clk_id, { struct snd_soc_codec *codec = dai->codec; struct tas2552_data *tas2552 = dev_get_drvdata(codec->dev); + u8 reg, mask, val; + + switch (clk_id) { + case TAS2552_PLL_CLKIN_MCLK: + case TAS2552_PLL_CLKIN_BCLK: + case TAS2552_PLL_CLKIN_IVCLKIN: + case TAS2552_PLL_CLKIN_1_8_FIXED: + mask = TAS2552_PLL_SRC_MASK; + val = (clk_id << 3) & mask; /* bit 4:5 in the register */ + reg = TAS2552_CFG_1; + tas2552->pll_clkin = freq; + break; + case TAS2552_PDM_CLK_PLL: + case TAS2552_PDM_CLK_IVCLKIN: + case TAS2552_PDM_CLK_BCLK: + case TAS2552_PDM_CLK_MCLK: + mask = TAS2552_PDM_CLK_SEL_MASK; + val = (clk_id >> 1) & mask; /* bit 0:1 in the register */ + reg = TAS2552_PDM_CFG; + tas2552->pdm_clk = freq; + break; + default: + dev_err(codec->dev, "Invalid clk id: %d\n", clk_id); + return -EINVAL; + } - tas2552->pll_clkin = freq; + snd_soc_update_bits(codec, reg, mask, val); return 0; } @@ -366,13 +393,11 @@ static int tas2552_codec_probe(struct snd_soc_codec *codec) goto probe_fail; } - snd_soc_write(codec, TAS2552_CFG_1, TAS2552_MUTE | - TAS2552_PLL_SRC_BCLK); + snd_soc_write(codec, TAS2552_CFG_1, TAS2552_MUTE); snd_soc_write(codec, TAS2552_CFG_3, TAS2552_I2S_OUT_SEL | TAS2552_DIN_SRC_SEL_AVG_L_R | TAS2552_88_96KHZ); snd_soc_write(codec, TAS2552_DOUT, TAS2552_PDM_DATA_I); snd_soc_write(codec, TAS2552_OUTPUT_DATA, TAS2552_PDM_DATA_V_I | 0x8); - snd_soc_write(codec, TAS2552_PDM_CFG, TAS2552_PDM_CLK_SEL_PLL); snd_soc_write(codec, TAS2552_BOOST_PT_CTRL, TAS2552_APT_DELAY_200 | TAS2552_APT_THRESH_2_1_7); |