[RFC patch 2/5] ASoC: tlv320aic31xx: Add support for pll_r coefficient
From: Ariel D'Alessandro
Date: Fri Nov 19 2021 - 10:34:21 EST
When the clock used by the codec is BCLK, the operation parameters need
to be calculated from input sample rate and format. Low frequency rates
required different r multipliers, in order to achieve a higher PLL
output frequency.
Signed-off-by: Michael Trimarchi <michael@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Ariel D'Alessandro <ariel.dalessandro@xxxxxxxxxxxxx>
---
sound/soc/codecs/tlv320aic31xx.c | 71 ++++++++++++++++----------------
1 file changed, 36 insertions(+), 35 deletions(-)
diff --git a/sound/soc/codecs/tlv320aic31xx.c b/sound/soc/codecs/tlv320aic31xx.c
index 52d2c968b5c0..1aec03d834d0 100644
--- a/sound/soc/codecs/tlv320aic31xx.c
+++ b/sound/soc/codecs/tlv320aic31xx.c
@@ -180,6 +180,7 @@ struct aic31xx_priv {
struct aic31xx_rate_divs {
u32 mclk_p;
u32 rate;
+ u8 pll_r;
u8 pll_j;
u16 pll_d;
u16 dosr;
@@ -192,51 +193,51 @@ struct aic31xx_rate_divs {
/* ADC dividers can be disabled by configuring them to 0 */
static const struct aic31xx_rate_divs aic31xx_divs[] = {
- /* mclk/p rate pll: j d dosr ndac mdac aors nadc madc */
+ /* mclk/p rate pll: r j d dosr ndac mdac aors nadc madc */
/* 8k rate */
- {12000000, 8000, 8, 1920, 128, 48, 2, 128, 48, 2},
- {12000000, 8000, 8, 1920, 128, 32, 3, 128, 32, 3},
- {12500000, 8000, 7, 8643, 128, 48, 2, 128, 48, 2},
+ {12000000, 8000, 1, 8, 1920, 128, 48, 2, 128, 48, 2},
+ {12000000, 8000, 1, 8, 1920, 128, 32, 3, 128, 32, 3},
+ {12500000, 8000, 1, 7, 8643, 128, 48, 2, 128, 48, 2},
/* 11.025k rate */
- {12000000, 11025, 7, 5264, 128, 32, 2, 128, 32, 2},
- {12000000, 11025, 8, 4672, 128, 24, 3, 128, 24, 3},
- {12500000, 11025, 7, 2253, 128, 32, 2, 128, 32, 2},
+ {12000000, 11025, 1, 7, 5264, 128, 32, 2, 128, 32, 2},
+ {12000000, 11025, 1, 8, 4672, 128, 24, 3, 128, 24, 3},
+ {12500000, 11025, 1, 7, 2253, 128, 32, 2, 128, 32, 2},
/* 16k rate */
- {12000000, 16000, 8, 1920, 128, 24, 2, 128, 24, 2},
- {12000000, 16000, 8, 1920, 128, 16, 3, 128, 16, 3},
- {12500000, 16000, 7, 8643, 128, 24, 2, 128, 24, 2},
+ {12000000, 16000, 1, 8, 1920, 128, 24, 2, 128, 24, 2},
+ {12000000, 16000, 1, 8, 1920, 128, 16, 3, 128, 16, 3},
+ {12500000, 16000, 1, 7, 8643, 128, 24, 2, 128, 24, 2},
/* 22.05k rate */
- {12000000, 22050, 7, 5264, 128, 16, 2, 128, 16, 2},
- {12000000, 22050, 8, 4672, 128, 12, 3, 128, 12, 3},
- {12500000, 22050, 7, 2253, 128, 16, 2, 128, 16, 2},
+ {12000000, 22050, 1, 7, 5264, 128, 16, 2, 128, 16, 2},
+ {12000000, 22050, 1, 8, 4672, 128, 12, 3, 128, 12, 3},
+ {12500000, 22050, 1, 7, 2253, 128, 16, 2, 128, 16, 2},
/* 32k rate */
- {12000000, 32000, 8, 1920, 128, 12, 2, 128, 12, 2},
- {12000000, 32000, 8, 1920, 128, 8, 3, 128, 8, 3},
- {12500000, 32000, 7, 8643, 128, 12, 2, 128, 12, 2},
+ {12000000, 32000, 1, 8, 1920, 128, 12, 2, 128, 12, 2},
+ {12000000, 32000, 1, 8, 1920, 128, 8, 3, 128, 8, 3},
+ {12500000, 32000, 1, 7, 8643, 128, 12, 2, 128, 12, 2},
/* 44.1k rate */
- {12000000, 44100, 7, 5264, 128, 8, 2, 128, 8, 2},
- {12000000, 44100, 8, 4672, 128, 6, 3, 128, 6, 3},
- {12500000, 44100, 7, 2253, 128, 8, 2, 128, 8, 2},
+ {12000000, 44100, 1, 7, 5264, 128, 8, 2, 128, 8, 2},
+ {12000000, 44100, 1, 8, 4672, 128, 6, 3, 128, 6, 3},
+ {12500000, 44100, 1, 7, 2253, 128, 8, 2, 128, 8, 2},
/* 48k rate */
- {12000000, 48000, 8, 1920, 128, 8, 2, 128, 8, 2},
- {12000000, 48000, 7, 6800, 96, 5, 4, 96, 5, 4},
- {12500000, 48000, 7, 8643, 128, 8, 2, 128, 8, 2},
+ {12000000, 48000, 1, 8, 1920, 128, 8, 2, 128, 8, 2},
+ {12000000, 48000, 1, 7, 6800, 96, 5, 4, 96, 5, 4},
+ {12500000, 48000, 1, 7, 8643, 128, 8, 2, 128, 8, 2},
/* 88.2k rate */
- {12000000, 88200, 7, 5264, 64, 8, 2, 64, 8, 2},
- {12000000, 88200, 8, 4672, 64, 6, 3, 64, 6, 3},
- {12500000, 88200, 7, 2253, 64, 8, 2, 64, 8, 2},
+ {12000000, 88200, 1, 7, 5264, 64, 8, 2, 64, 8, 2},
+ {12000000, 88200, 1, 8, 4672, 64, 6, 3, 64, 6, 3},
+ {12500000, 88200, 1, 7, 2253, 64, 8, 2, 64, 8, 2},
/* 96k rate */
- {12000000, 96000, 8, 1920, 64, 8, 2, 64, 8, 2},
- {12000000, 96000, 7, 6800, 48, 5, 4, 48, 5, 4},
- {12500000, 96000, 7, 8643, 64, 8, 2, 64, 8, 2},
+ {12000000, 96000, 1, 8, 1920, 64, 8, 2, 64, 8, 2},
+ {12000000, 96000, 1, 7, 6800, 48, 5, 4, 48, 5, 4},
+ {12500000, 96000, 1, 7, 8643, 64, 8, 2, 64, 8, 2},
/* 176.4k rate */
- {12000000, 176400, 7, 5264, 32, 8, 2, 32, 8, 2},
- {12000000, 176400, 8, 4672, 32, 6, 3, 32, 6, 3},
- {12500000, 176400, 7, 2253, 32, 8, 2, 32, 8, 2},
+ {12000000, 176400, 1, 7, 5264, 32, 8, 2, 32, 8, 2},
+ {12000000, 176400, 1, 8, 4672, 32, 6, 3, 32, 6, 3},
+ {12500000, 176400, 1, 7, 2253, 32, 8, 2, 32, 8, 2},
/* 192k rate */
- {12000000, 192000, 8, 1920, 32, 8, 2, 32, 8, 2},
- {12000000, 192000, 7, 6800, 24, 5, 4, 24, 5, 4},
- {12500000, 192000, 7, 8643, 32, 8, 2, 32, 8, 2},
+ {12000000, 192000, 1, 8, 1920, 32, 8, 2, 32, 8, 2},
+ {12000000, 192000, 1, 7, 6800, 24, 5, 4, 24, 5, 4},
+ {12500000, 192000, 1, 7, 8643, 32, 8, 2, 32, 8, 2},
};
static const char * const ldac_in_text[] = {
@@ -888,7 +889,7 @@ static int aic31xx_setup_pll(struct snd_soc_component *component,
/* PLL configuration */
snd_soc_component_update_bits(component, AIC31XX_PLLPR, AIC31XX_PLL_MASK,
- (aic31xx->p_div << 4) | 0x01);
+ (aic31xx->p_div << 4) | aic31xx_divs[i].pll_r);
snd_soc_component_write(component, AIC31XX_PLLJ, aic31xx_divs[i].pll_j);
snd_soc_component_write(component, AIC31XX_PLLDMSB,
--
2.30.2