[PATCH 02/13] mfd: pm8008: fix regmap irq chip initialisation

Johan Hovold
2024-05-06T15:10:15Z

The regmap irq array is potentially shared between multiple PMICs and
should only contain static data.

Use a custom macro to initialise also the type fields and drop the
unnecessary updates on each probe.

Fixes: 6b149f3310a4 ("mfd: pm8008: Add driver for QCOM PM8008 PMIC")
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
---
drivers/mfd/qcom-pm8008.c | 66 +++++++++++++++------------------------
1 file changed, 25 insertions(+), 41 deletions(-)

diff --git a/drivers/mfd/qcom-pm8008.c b/drivers/mfd/qcom-pm8008.c
index 3ac3742f438b..d53c987b0d49 100644
--- a/drivers/mfd/qcom-pm8008.c
+++ b/drivers/mfd/qcom-pm8008.c
@@ -56,15 +56,27 @@ static unsigned int pm8008_config_regs[] = {
INT_POL_LOW_OFFSET,
};

-static struct regmap_irq pm8008_irqs[] = {
- REGMAP_IRQ_REG(PM8008_IRQ_MISC_UVLO, PM8008_MISC, BIT(0)),
- REGMAP_IRQ_REG(PM8008_IRQ_MISC_OVLO, PM8008_MISC, BIT(1)),
- REGMAP_IRQ_REG(PM8008_IRQ_MISC_OTST2, PM8008_MISC, BIT(2)),
- REGMAP_IRQ_REG(PM8008_IRQ_MISC_OTST3, PM8008_MISC, BIT(3)),
- REGMAP_IRQ_REG(PM8008_IRQ_MISC_LDO_OCP, PM8008_MISC, BIT(4)),
- REGMAP_IRQ_REG(PM8008_IRQ_TEMP_ALARM, PM8008_TEMP_ALARM, BIT(0)),
- REGMAP_IRQ_REG(PM8008_IRQ_GPIO1, PM8008_GPIO1, BIT(0)),
- REGMAP_IRQ_REG(PM8008_IRQ_GPIO2, PM8008_GPIO2, BIT(0)),
+#define _IRQ(_irq, _off, _mask, _types) \
+ [_irq] = { \
+ .reg_offset = (_off), \
+ .mask = (_mask), \
+ .type = { \
+ .type_reg_offset = (_off), \
+ .types_supported = (_types), \
+ }, \
+ }
+
+#define _IRQ_TYPE_ALL (IRQ_TYPE_EDGE_BOTH | IRQ_TYPE_LEVEL_HIGH | IRQ_TYPE_LEVEL_LOW)
+
+static const struct regmap_irq pm8008_irqs[] = {
+ _IRQ(PM8008_IRQ_MISC_UVLO, PM8008_MISC, BIT(0), IRQ_TYPE_EDGE_RISING),
+ _IRQ(PM8008_IRQ_MISC_OVLO, PM8008_MISC, BIT(1), IRQ_TYPE_EDGE_RISING),
+ _IRQ(PM8008_IRQ_MISC_OTST2, PM8008_MISC, BIT(2), IRQ_TYPE_EDGE_RISING),
+ _IRQ(PM8008_IRQ_MISC_OTST3, PM8008_MISC, BIT(3), IRQ_TYPE_EDGE_RISING),
+ _IRQ(PM8008_IRQ_MISC_LDO_OCP, PM8008_MISC, BIT(4), IRQ_TYPE_EDGE_RISING),
+ _IRQ(PM8008_IRQ_TEMP_ALARM, PM8008_TEMP_ALARM,BIT(0), _IRQ_TYPE_ALL),
+ _IRQ(PM8008_IRQ_GPIO1, PM8008_GPIO1, BIT(0), _IRQ_TYPE_ALL),
+ _IRQ(PM8008_IRQ_GPIO2, PM8008_GPIO2, BIT(0), _IRQ_TYPE_ALL),
};

static const unsigned int pm8008_periph_base[] = {
@@ -143,38 +155,9 @@ static struct regmap_config qcom_mfd_regmap_cfg = {
.max_register = 0xFFFF,
};

-static int pm8008_probe_irq_peripherals(struct device *dev,
- struct regmap *regmap,
- int client_irq)
-{
- int rc, i;
- struct regmap_irq_type *type;
- struct regmap_irq_chip_data *irq_data;
-
- for (i = 0; i < ARRAY_SIZE(pm8008_irqs); i++) {
- type = &pm8008_irqs[i].type;
-
- type->type_reg_offset = pm8008_irqs[i].reg_offset;
-
- if (type->type_reg_offset == PM8008_MISC)
- type->types_supported = IRQ_TYPE_EDGE_RISING;
- else
- type->types_supported = (IRQ_TYPE_EDGE_BOTH |
- IRQ_TYPE_LEVEL_HIGH | IRQ_TYPE_LEVEL_LOW);
- }
-
- rc = devm_regmap_add_irq_chip(dev, regmap, client_irq,
- IRQF_SHARED, 0, &pm8008_irq_chip, &irq_data);
- if (rc) {
- dev_err(dev, "Failed to add IRQ chip: %d\n", rc);
- return rc;
- }
-
- return 0;
-}
-
static int pm8008_probe(struct i2c_client *client)
{
+ struct regmap_irq_chip_data *irq_data;
int rc;
struct device *dev;
struct regmap *regmap;
@@ -187,9 +170,10 @@ static int pm8008_probe(struct i2c_client *client)
i2c_set_clientdata(client, regmap);

if (of_property_read_bool(dev->of_node, "interrupt-controller")) {
- rc = pm8008_probe_irq_peripherals(dev, regmap, client->irq);
+ rc = devm_regmap_add_irq_chip(dev, regmap, client->irq,
+ IRQF_SHARED, 0, &pm8008_irq_chip, &irq_data);
if (rc)
- dev_err(dev, "Failed to probe irq periphs: %d\n", rc);
+ dev_err(dev, "failed to add IRQ chip: %d\n", rc);
}

return devm_of_platform_populate(dev);
--
2.43.2