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ASoC: tas5720: set bit 7 in ANALOG_CTRL_REG for TAS5720A-Q1 during probe
Set the reserved bit 7 in the ANALOG_CTRL_REG for the TAS5720A-Q1 device, when probing. The datasheet mentions that the bit should be 1 during reset/powerup. The device did not initialize before setting this value to 1. So, this could be a quirk of this device. Or it could be a quirk with the board on which it was tested. That is why this patch is separate from the patch that adds support for the TAS5720A-Q1 device. Signed-off-by: Steffen Aschbacher <steffen.aschbacher@stihl.de> Signed-off-by: Alexandru Ardelean <alex@shruggie.ro> Link: https://lore.kernel.org/r/20230128082744.41849-3-alex@shruggie.ro Signed-off-by: Mark Brown <broonie@kernel.org>
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@ -351,6 +351,19 @@ static int tas5720_codec_probe(struct snd_soc_component *component)
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if (ret < 0)
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goto error_snd_soc_component_update_bits;
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/* Set Bit 7 in TAS5720_ANALOG_CTRL_REG to 1 for TAS5720A_Q1 */
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switch (tas5720->devtype) {
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case TAS5720A_Q1:
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ret = snd_soc_component_update_bits(component, TAS5720_ANALOG_CTRL_REG,
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TAS5720_Q1_RESERVED7_BIT,
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TAS5720_Q1_RESERVED7_BIT);
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break;
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default:
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break;
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}
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if (ret < 0)
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goto error_snd_soc_component_update_bits;
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/*
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* Enter shutdown mode - our default when not playing audio - to
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* minimize current consumption. On the TAS5720 there is no real down
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@ -81,6 +81,7 @@
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#define TAS5720_ANALOG_GAIN_SHIFT (0x2)
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/* TAS5720_Q1_ANALOG_CTRL_REG */
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#define TAS5720_Q1_RESERVED7_BIT BIT(7)
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#define TAS5720_Q1_CHAN_SEL BIT(1)
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/* TAS5720_FAULT_REG */
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