[PATCH v6 1/4] ASoC: cs35l41: Only disable internal boost

From: Lucas Tanure
Date: Wed Feb 22 2023 - 04:37:05 EST


In error situations, only the internal boost case should be disabled and
re-enabled.
Also, for other boost cases re-enabling the boost to the default internal
boost config is incorrect.

Fixes: 6450ef559056 ("ASoC: cs35l41: CS35L41 Boosted Smart Amplifier")
Signed-off-by: Lucas Tanure <lucas.tanure@xxxxxxxxxxxxx>
Acked-by: Charles Keepax <ckeepax@xxxxxxxxxxxxxxxxxxxxx>
---
sound/soc/codecs/cs35l41.c | 34 +++++++++++++++++++---------------
1 file changed, 19 insertions(+), 15 deletions(-)

diff --git a/sound/soc/codecs/cs35l41.c b/sound/soc/codecs/cs35l41.c
index c223d83e02cf..f2b5032daa6a 100644
--- a/sound/soc/codecs/cs35l41.c
+++ b/sound/soc/codecs/cs35l41.c
@@ -356,6 +356,19 @@ static const struct snd_kcontrol_new cs35l41_aud_controls[] = {
WM_ADSP_FW_CONTROL("DSP1", 0),
};

+static void cs35l41_boost_enable(struct cs35l41_private *cs35l41, unsigned int enable)
+{
+ switch (cs35l41->hw_cfg.bst_type) {
+ case CS35L41_INT_BOOST:
+ enable = enable ? CS35L41_BST_EN_DEFAULT : CS35L41_BST_DIS_FET_OFF;
+ regmap_update_bits(cs35l41->regmap, CS35L41_PWR_CTRL2, CS35L41_BST_EN_MASK,
+ enable << CS35L41_BST_EN_SHIFT);
+ break;
+ default:
+ break;
+ }
+}
+
static irqreturn_t cs35l41_irq(int irq, void *data)
{
struct cs35l41_private *cs35l41 = data;
@@ -431,8 +444,7 @@ static irqreturn_t cs35l41_irq(int irq, void *data)

if (status[0] & CS35L41_BST_OVP_ERR) {
dev_crit_ratelimited(cs35l41->dev, "VBST Over Voltage error\n");
- regmap_update_bits(cs35l41->regmap, CS35L41_PWR_CTRL2,
- CS35L41_BST_EN_MASK, 0);
+ cs35l41_boost_enable(cs35l41, 0);
regmap_write(cs35l41->regmap, CS35L41_IRQ1_STATUS1,
CS35L41_BST_OVP_ERR);
regmap_write(cs35l41->regmap, CS35L41_PROTECT_REL_ERR_IGN, 0);
@@ -441,16 +453,13 @@ static irqreturn_t cs35l41_irq(int irq, void *data)
CS35L41_BST_OVP_ERR_RLS);
regmap_update_bits(cs35l41->regmap, CS35L41_PROTECT_REL_ERR_IGN,
CS35L41_BST_OVP_ERR_RLS, 0);
- regmap_update_bits(cs35l41->regmap, CS35L41_PWR_CTRL2,
- CS35L41_BST_EN_MASK,
- CS35L41_BST_EN_DEFAULT << CS35L41_BST_EN_SHIFT);
+ cs35l41_boost_enable(cs35l41, 1);
ret = IRQ_HANDLED;
}

if (status[0] & CS35L41_BST_DCM_UVP_ERR) {
dev_crit_ratelimited(cs35l41->dev, "DCM VBST Under Voltage Error\n");
- regmap_update_bits(cs35l41->regmap, CS35L41_PWR_CTRL2,
- CS35L41_BST_EN_MASK, 0);
+ cs35l41_boost_enable(cs35l41, 0);
regmap_write(cs35l41->regmap, CS35L41_IRQ1_STATUS1,
CS35L41_BST_DCM_UVP_ERR);
regmap_write(cs35l41->regmap, CS35L41_PROTECT_REL_ERR_IGN, 0);
@@ -459,16 +468,13 @@ static irqreturn_t cs35l41_irq(int irq, void *data)
CS35L41_BST_UVP_ERR_RLS);
regmap_update_bits(cs35l41->regmap, CS35L41_PROTECT_REL_ERR_IGN,
CS35L41_BST_UVP_ERR_RLS, 0);
- regmap_update_bits(cs35l41->regmap, CS35L41_PWR_CTRL2,
- CS35L41_BST_EN_MASK,
- CS35L41_BST_EN_DEFAULT << CS35L41_BST_EN_SHIFT);
+ cs35l41_boost_enable(cs35l41, 1);
ret = IRQ_HANDLED;
}

if (status[0] & CS35L41_BST_SHORT_ERR) {
dev_crit_ratelimited(cs35l41->dev, "LBST error: powering off!\n");
- regmap_update_bits(cs35l41->regmap, CS35L41_PWR_CTRL2,
- CS35L41_BST_EN_MASK, 0);
+ cs35l41_boost_enable(cs35l41, 0);
regmap_write(cs35l41->regmap, CS35L41_IRQ1_STATUS1,
CS35L41_BST_SHORT_ERR);
regmap_write(cs35l41->regmap, CS35L41_PROTECT_REL_ERR_IGN, 0);
@@ -477,9 +483,7 @@ static irqreturn_t cs35l41_irq(int irq, void *data)
CS35L41_BST_SHORT_ERR_RLS);
regmap_update_bits(cs35l41->regmap, CS35L41_PROTECT_REL_ERR_IGN,
CS35L41_BST_SHORT_ERR_RLS, 0);
- regmap_update_bits(cs35l41->regmap, CS35L41_PWR_CTRL2,
- CS35L41_BST_EN_MASK,
- CS35L41_BST_EN_DEFAULT << CS35L41_BST_EN_SHIFT);
+ cs35l41_boost_enable(cs35l41, 1);
ret = IRQ_HANDLED;
}

--
2.39.2