[PATCH v2 04/26] ALSA: hda: cs35l41: Add Support for Interrupts
Vitaly Rodionov
vitalyr at opensource.cirrus.com
Mon May 9 23:46:41 CEST 2022
From: Stefan Binding <sbinding at opensource.cirrus.com>
The CS35L41 can produce interrupts on error.
When the interrupts occur, the driver will report
the error, but errors will only be fixed after playback
finishes.
Signed-off-by: Stefan Binding <sbinding at opensource.cirrus.com>
Signed-off-by: Vitaly Rodionov <vitalyr at opensource.cirrus.com>
---
include/sound/cs35l41.h | 54 +++++++++++++++
sound/pci/hda/Kconfig | 2 +
sound/pci/hda/cs35l41_hda.c | 134 +++++++++++++++++++++++++++++++++++-
sound/pci/hda/cs35l41_hda.h | 2 +
4 files changed, 191 insertions(+), 1 deletion(-)
diff --git a/include/sound/cs35l41.h b/include/sound/cs35l41.h
index 48ea76e9a7a5..5bd2a5d370ce 100644
--- a/include/sound/cs35l41.h
+++ b/include/sound/cs35l41.h
@@ -690,6 +690,13 @@
#define CS35L41_TEMP_WARN_ERR_RLS 0x20
#define CS35L41_TEMP_ERR_RLS 0x40
+#define CS35L41_AMP_SHORT_ERR_RLS_SHIFT 1
+#define CS35L41_BST_SHORT_ERR_RLS_SHIFT 2
+#define CS35L41_BST_OVP_ERR_RLS_SHIFT 3
+#define CS35L41_BST_UVP_ERR_RLS_SHIFT 4
+#define CS35L41_TEMP_WARN_ERR_RLS_SHIFT 5
+#define CS35L41_TEMP_ERR_RLS_SHIFT 6
+
#define CS35L41_INT1_MASK_DEFAULT 0x7FFCFE3F
#define CS35L41_INT1_UNMASK_PUP 0xFEFFFFFF
#define CS35L41_INT1_UNMASK_PDN 0xFF7FFFFF
@@ -793,6 +800,53 @@ struct cs35l41_otp_map_element_t {
u32 word_offset;
};
+/*
+ * IRQs
+ */
+#define CS35L41_IRQ(_irq, _name, _hand) \
+ { \
+ .irq = CS35L41_ ## _irq ## _IRQ,\
+ .name = _name, \
+ .handler = _hand, \
+ }
+
+struct cs35l41_irq {
+ int irq;
+ const char *name;
+ irqreturn_t (*handler)(int irq, void *data);
+};
+
+#define CS35L41_REG_IRQ(_reg, _irq) \
+ [CS35L41_ ## _irq ## _IRQ] = { \
+ .reg_offset = (CS35L41_ ## _reg) - CS35L41_IRQ1_STATUS1,\
+ .mask = CS35L41_ ## _irq ## _MASK \
+ }
+
+/* (0x0000E010) CS35L41_IRQ1_STATUS1 */
+#define CS35L41_BST_OVP_ERR_SHIFT 6
+#define CS35L41_BST_OVP_ERR_MASK BIT(CS35L41_BST_OVP_ERR_SHIFT)
+#define CS35L41_BST_DCM_UVP_ERR_SHIFT 7
+#define CS35L41_BST_DCM_UVP_ERR_MASK BIT(CS35L41_BST_DCM_UVP_ERR_SHIFT)
+#define CS35L41_BST_SHORT_ERR_SHIFT 8
+#define CS35L41_BST_SHORT_ERR_MASK BIT(CS35L41_BST_SHORT_ERR_SHIFT)
+#define CS35L41_TEMP_WARN_SHIFT 15
+#define CS35L41_TEMP_WARN_MASK BIT(CS35L41_TEMP_WARN_SHIFT)
+#define CS35L41_TEMP_ERR_SHIFT 17
+#define CS35L41_TEMP_ERR_MASK BIT(CS35L41_TEMP_ERR_SHIFT)
+#define CS35L41_AMP_SHORT_ERR_SHIFT 31
+#define CS35L41_AMP_SHORT_ERR_MASK BIT(CS35L41_AMP_SHORT_ERR_SHIFT)
+
+enum cs35l41_irq_list {
+ CS35L41_BST_OVP_ERR_IRQ,
+ CS35L41_BST_DCM_UVP_ERR_IRQ,
+ CS35L41_BST_SHORT_ERR_IRQ,
+ CS35L41_TEMP_WARN_IRQ,
+ CS35L41_TEMP_ERR_IRQ,
+ CS35L41_AMP_SHORT_ERR_IRQ,
+
+ CS35L41_NUM_IRQ
+};
+
extern struct regmap_config cs35l41_regmap_i2c;
extern struct regmap_config cs35l41_regmap_spi;
diff --git a/sound/pci/hda/Kconfig b/sound/pci/hda/Kconfig
index 9f6c99c1d87b..79ade4787d95 100644
--- a/sound/pci/hda/Kconfig
+++ b/sound/pci/hda/Kconfig
@@ -102,6 +102,7 @@ config SND_HDA_SCODEC_CS35L41_I2C
select SND_HDA_GENERIC
select SND_SOC_CS35L41_LIB
select SND_HDA_SCODEC_CS35L41
+ select REGMAP_IRQ
help
Say Y or M here to include CS35L41 I2C HD-audio side codec support
in snd-hda-intel driver, such as ALC287.
@@ -117,6 +118,7 @@ config SND_HDA_SCODEC_CS35L41_SPI
select SND_HDA_GENERIC
select SND_SOC_CS35L41_LIB
select SND_HDA_SCODEC_CS35L41
+ select REGMAP_IRQ
help
Say Y or M here to include CS35L41 SPI HD-audio side codec support
in snd-hda-intel driver, such as ALC287.
diff --git a/sound/pci/hda/cs35l41_hda.c b/sound/pci/hda/cs35l41_hda.c
index 96c3e541696d..bd52e0c2c772 100644
--- a/sound/pci/hda/cs35l41_hda.c
+++ b/sound/pci/hda/cs35l41_hda.c
@@ -32,6 +32,21 @@ static const struct reg_sequence cs35l41_hda_mute[] = {
{ CS35L41_AMP_DIG_VOL_CTRL, 0x0000A678 }, // AMP_VOL_PCM Mute
};
+/* Protection release cycle to get the speaker out of Safe-Mode */
+static void cs35l41_error_release(struct device *dev, struct regmap *regmap, unsigned int mask)
+{
+ regmap_write(regmap, CS35L41_PROTECT_REL_ERR_IGN, 0);
+ regmap_set_bits(regmap, CS35L41_PROTECT_REL_ERR_IGN, mask);
+ regmap_clear_bits(regmap, CS35L41_PROTECT_REL_ERR_IGN, mask);
+}
+
+/* Clear all errors to release safe mode. Global Enable must be cleared first. */
+static void cs35l41_irq_release(struct cs35l41_hda *cs35l41)
+{
+ cs35l41_error_release(cs35l41->dev, cs35l41->regmap, cs35l41->irq_errors);
+ cs35l41->irq_errors = 0;
+}
+
static void cs35l41_hda_playback_hook(struct device *dev, int action)
{
struct cs35l41_hda *cs35l41 = dev_get_drvdata(dev);
@@ -58,6 +73,7 @@ static void cs35l41_hda_playback_hook(struct device *dev, int action)
CS35L41_AMP_EN_MASK, 0 << CS35L41_AMP_EN_SHIFT);
if (cs35l41->hw_cfg.bst_type == CS35L41_EXT_BOOST)
regmap_write(reg, CS35L41_GPIO1_CTRL1, 0x00000001);
+ cs35l41_irq_release(cs35l41);
break;
default:
dev_warn(cs35l41->dev, "Playback action not supported: %d\n", action);
@@ -110,10 +126,101 @@ static const struct component_ops cs35l41_hda_comp_ops = {
.unbind = cs35l41_hda_unbind,
};
+static irqreturn_t cs35l41_bst_short_err(int irq, void *data)
+{
+ struct cs35l41_hda *cs35l41 = data;
+
+ dev_crit_ratelimited(cs35l41->dev, "LBST Error\n");
+ set_bit(CS35L41_BST_SHORT_ERR_RLS_SHIFT, &cs35l41->irq_errors);
+
+ return IRQ_HANDLED;
+}
+
+static irqreturn_t cs35l41_bst_dcm_uvp_err(int irq, void *data)
+{
+ struct cs35l41_hda *cs35l41 = data;
+
+ dev_crit_ratelimited(cs35l41->dev, "DCM VBST Under Voltage Error\n");
+ set_bit(CS35L41_BST_UVP_ERR_RLS_SHIFT, &cs35l41->irq_errors);
+
+ return IRQ_HANDLED;
+}
+
+static irqreturn_t cs35l41_bst_ovp_err(int irq, void *data)
+{
+ struct cs35l41_hda *cs35l41 = data;
+
+ dev_crit_ratelimited(cs35l41->dev, "VBST Over Voltage error\n");
+ set_bit(CS35L41_BST_OVP_ERR_RLS_SHIFT, &cs35l41->irq_errors);
+
+ return IRQ_HANDLED;
+}
+
+static irqreturn_t cs35l41_temp_err(int irq, void *data)
+{
+ struct cs35l41_hda *cs35l41 = data;
+
+ dev_crit_ratelimited(cs35l41->dev, "Over temperature error\n");
+ set_bit(CS35L41_TEMP_ERR_RLS_SHIFT, &cs35l41->irq_errors);
+
+ return IRQ_HANDLED;
+}
+
+static irqreturn_t cs35l41_temp_warn(int irq, void *data)
+{
+ struct cs35l41_hda *cs35l41 = data;
+
+ dev_crit_ratelimited(cs35l41->dev, "Over temperature warning\n");
+ set_bit(CS35L41_TEMP_WARN_ERR_RLS_SHIFT, &cs35l41->irq_errors);
+
+ return IRQ_HANDLED;
+}
+
+static irqreturn_t cs35l41_amp_short(int irq, void *data)
+{
+ struct cs35l41_hda *cs35l41 = data;
+
+ dev_crit_ratelimited(cs35l41->dev, "Amp short error\n");
+ set_bit(CS35L41_AMP_SHORT_ERR_RLS_SHIFT, &cs35l41->irq_errors);
+
+ return IRQ_HANDLED;
+}
+
+static const struct cs35l41_irq cs35l41_irqs[] = {
+ CS35L41_IRQ(BST_OVP_ERR, "Boost Overvoltage Error", cs35l41_bst_ovp_err),
+ CS35L41_IRQ(BST_DCM_UVP_ERR, "Boost Undervoltage Error", cs35l41_bst_dcm_uvp_err),
+ CS35L41_IRQ(BST_SHORT_ERR, "Boost Inductor Short Error", cs35l41_bst_short_err),
+ CS35L41_IRQ(TEMP_WARN, "Temperature Warning", cs35l41_temp_warn),
+ CS35L41_IRQ(TEMP_ERR, "Temperature Error", cs35l41_temp_err),
+ CS35L41_IRQ(AMP_SHORT_ERR, "Amp Short", cs35l41_amp_short),
+};
+
+static const struct regmap_irq cs35l41_reg_irqs[] = {
+ CS35L41_REG_IRQ(IRQ1_STATUS1, BST_OVP_ERR),
+ CS35L41_REG_IRQ(IRQ1_STATUS1, BST_DCM_UVP_ERR),
+ CS35L41_REG_IRQ(IRQ1_STATUS1, BST_SHORT_ERR),
+ CS35L41_REG_IRQ(IRQ1_STATUS1, TEMP_WARN),
+ CS35L41_REG_IRQ(IRQ1_STATUS1, TEMP_ERR),
+ CS35L41_REG_IRQ(IRQ1_STATUS1, AMP_SHORT_ERR),
+};
+
+static const struct regmap_irq_chip cs35l41_regmap_irq_chip = {
+ .name = "cs35l41 IRQ1 Controller",
+ .status_base = CS35L41_IRQ1_STATUS1,
+ .mask_base = CS35L41_IRQ1_MASK1,
+ .ack_base = CS35L41_IRQ1_STATUS1,
+ .num_regs = 4,
+ .irqs = cs35l41_reg_irqs,
+ .num_irqs = ARRAY_SIZE(cs35l41_reg_irqs),
+};
+
static int cs35l41_hda_apply_properties(struct cs35l41_hda *cs35l41)
{
struct cs35l41_hw_cfg *hw_cfg = &cs35l41->hw_cfg;
+ bool using_irq = false;
+ int irq, irq_pol;
int ret;
+ int i;
if (!cs35l41->hw_cfg.valid)
return -EINVAL;
@@ -145,6 +252,7 @@ static int cs35l41_hda_apply_properties(struct cs35l41_hda *cs35l41)
case CS35L41_NOT_USED:
break;
case CS35L41_INTERRUPT:
+ using_irq = true;
break;
default:
dev_err(cs35l41->dev, "Invalid GPIO2 function %d\n", hw_cfg->gpio2.func);
@@ -152,7 +260,28 @@ static int cs35l41_hda_apply_properties(struct cs35l41_hda *cs35l41)
}
}
- cs35l41_gpio_config(cs35l41->regmap, hw_cfg);
+ irq_pol = cs35l41_gpio_config(cs35l41->regmap, hw_cfg);
+
+ if (cs35l41->irq && using_irq) {
+ ret = devm_regmap_add_irq_chip(cs35l41->dev, cs35l41->regmap, cs35l41->irq,
+ IRQF_ONESHOT | IRQF_SHARED | irq_pol,
+ 0, &cs35l41_regmap_irq_chip, &cs35l41->irq_data);
+ if (ret)
+ return ret;
+
+ for (i = 0; i < ARRAY_SIZE(cs35l41_irqs); i++) {
+ irq = regmap_irq_get_virq(cs35l41->irq_data, cs35l41_irqs[i].irq);
+ if (irq < 0)
+ return irq;
+
+ ret = devm_request_threaded_irq(cs35l41->dev, irq, NULL,
+ cs35l41_irqs[i].handler,
+ IRQF_ONESHOT | IRQF_SHARED | irq_pol,
+ cs35l41_irqs[i].name, cs35l41);
+ if (ret)
+ return ret;
+ }
+ }
return cs35l41_hda_channel_map(cs35l41->dev, 0, NULL, 1, &hw_cfg->spk_pos);
}
@@ -296,6 +425,9 @@ int cs35l41_hda_probe(struct device *dev, const char *device_name, int id, int i
struct cs35l41_hda *cs35l41;
int ret;
+ BUILD_BUG_ON(ARRAY_SIZE(cs35l41_irqs) != ARRAY_SIZE(cs35l41_reg_irqs));
+ BUILD_BUG_ON(ARRAY_SIZE(cs35l41_irqs) != CS35L41_NUM_IRQ);
+
if (IS_ERR(regmap))
return PTR_ERR(regmap);
diff --git a/sound/pci/hda/cs35l41_hda.h b/sound/pci/hda/cs35l41_hda.h
index 44d9204ffdf1..c486e4a5bb24 100644
--- a/sound/pci/hda/cs35l41_hda.h
+++ b/sound/pci/hda/cs35l41_hda.h
@@ -35,6 +35,8 @@ struct cs35l41_hda {
int irq;
int index;
+ unsigned volatile long irq_errors;
+ struct regmap_irq_chip_data *irq_data;
};
int cs35l41_hda_probe(struct device *dev, const char *device_name, int id, int irq,
--
2.34.1
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