@@ -959,12 +959,17 @@ int axp20x_device_probe(struct axp20x_dev *axp20x)
AXP806_REG_ADDR_EXT_ADDR_SLAVE_MODE);
}
- ret = regmap_add_irq_chip(axp20x->regmap, axp20x->irq,
- IRQF_ONESHOT | IRQF_SHARED | axp20x->irq_flags,
- -1, axp20x->regmap_irq_chip, &axp20x->regmap_irqc);
- if (ret) {
- dev_err(axp20x->dev, "failed to add irq chip: %d\n", ret);
- return ret;
+ if (!axp20x->dev->of_node ||
+ of_property_read_bool(axp20x->dev->of_node, "interrupt-controller")) {
+ ret = regmap_add_irq_chip(axp20x->regmap, axp20x->irq,
+ IRQF_ONESHOT | IRQF_SHARED | axp20x->irq_flags,
+ -1, axp20x->regmap_irq_chip,
+ &axp20x->regmap_irqc);
+ if (ret) {
+ dev_err(axp20x->dev, "failed to add irq chip: %d\n",
+ ret);
+ return ret;
+ }
}
ret = mfd_add_devices(axp20x->dev, -1, axp20x->cells,
Currently the AXP chip requires to have its IRQ line connected to some interrupt controller, and will fail probing when this is not the case. On a new Allwinner SoC (H616) there is no NMI pin anymore, so the interrupt functionality of the AXP chip is simply not available. Check whether the DT describes the AXP chip as an interrupt controller before trying to register the irqchip, to avoid probe failures on setups without an interrupt. Signed-off-by: Andre Przywara <andre.przywara@arm.com> --- drivers/mfd/axp20x.c | 17 +++++++++++------ 1 file changed, 11 insertions(+), 6 deletions(-)