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mfd: axp20x: Use IRQF_TRIGGER_LOW on the axp288

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The interrupt line of the entire family of axp2xx pmics is active-low,
for devicetree enumerated irqs, this is dealt with in the devicetree.

ACPI irq resources have a flag field for this too, I tried using this
on my CUBE iwork8 Air tablet, but it does not contain the right data.

The dstd shows the irq listed as either ActiveLow or ActiveHigh,
depending on the OSID variable, which seems to be set by the
"OS IMAGE ID" in the BIOS/EFI setup screen.

Since the acpi-resource info is no good, simply pass in IRQF_TRIGGER_LOW
on the axp288.

Together with the other axp288 fixes in this series, this fixes the axp288
irq contineously triggering.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
This commit is contained in:
Hans de Goede 2016-12-14 14:52:05 +01:00 committed by Lee Jones
parent 34a2332769
commit 0a5454c901
2 changed files with 4 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
drivers/mfd/axp20x.c
View File

@ -802,6 +802,7 @@ int axp20x_match_device(struct axp20x_dev *axp20x)
axp20x->nr_cells = ARRAY_SIZE(axp288_cells);
axp20x->regmap_cfg = &axp288_regmap_config;
axp20x->regmap_irq_chip = &axp288_regmap_irq_chip;
axp20x->irq_flags = IRQF_TRIGGER_LOW;
break;
case AXP806_ID:
axp20x->nr_cells = ARRAY_SIZE(axp806_cells);
@ -831,9 +832,8 @@ int axp20x_device_probe(struct axp20x_dev *axp20x)
int ret;
ret = regmap_add_irq_chip(axp20x->regmap, axp20x->irq,
IRQF_ONESHOT | IRQF_SHARED, -1,
axp20x->regmap_irq_chip,
&axp20x->regmap_irqc);
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;

1
include/linux/mfd/axp20x.h
View File

@ -523,6 +523,7 @@ enum axp809_irqs {
struct axp20x_dev {
struct device *dev;
int irq;
unsigned long irq_flags;
struct regmap *regmap;
struct regmap_irq_chip_data *regmap_irqc;
long variant;