diff options
Diffstat (limited to 'drivers/mfd/axp20x.c')
| -rw-r--r-- | drivers/mfd/axp20x.c | 24 |
1 files changed, 17 insertions, 7 deletions
diff --git a/drivers/mfd/axp20x.c b/drivers/mfd/axp20x.c index 3eae04e24ac8..4145a38b3890 100644 --- a/drivers/mfd/axp20x.c +++ b/drivers/mfd/axp20x.c @@ -884,8 +884,13 @@ int axp20x_match_device(struct axp20x_dev *axp20x) axp20x->regmap_irq_chip = &axp803_regmap_irq_chip; break; case AXP806_ID: + /* + * Don't register the power key part if in slave mode or + * if there is no interrupt line. + */ if (of_property_read_bool(axp20x->dev->of_node, - "x-powers,self-working-mode")) { + "x-powers,self-working-mode") && + axp20x->irq > 0) { axp20x->nr_cells = ARRAY_SIZE(axp806_self_working_cells); axp20x->cells = axp806_self_working_cells; } else { @@ -959,12 +964,17 @@ 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; + /* Only if there is an interrupt line connected towards the CPU. */ + if (axp20x->irq > 0) { + 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, |