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hwmon: chipcap2: defer probe when IRQs are unavailable

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This device can work with or without interrupts, but if they
are provided and still not available, but if -EPROBE_DEFER is read,
its value must be propagated to enable probe retries.

Fixes: 3af350929e ("hwmon: Add support for Amphenol ChipCap 2")
Cc: stable@vger.kernel.org
Signed-off-by: Javier Carrasco <javier.carrasco.cruz@gmail.com>
Link: https://patch.msgid.link/20261014-chipcap2_locks-v3-4-27ebfc2c5b9e@gmail.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
This commit is contained in:
Javier Carrasco 2026-10-14 19:34:03 +02:00 committed by Guenter Roeck
parent 36b07ddfe2
commit b5a1412618
1 changed files with 6 additions and 0 deletions
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6
drivers/hwmon/chipcap2.c
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@ -636,6 +636,8 @@ static int cc2_request_ready_irq(struct cc2_data *data, struct device *dev)
int ret = 0;
data->irq_ready = fwnode_irq_get_byname(dev_fwnode(dev), "ready");
if (data->irq_ready == -EPROBE_DEFER)
return data->irq_ready;
if (data->irq_ready > 0) {
init_completion(&data->complete);
ret = devm_request_threaded_irq(dev, data->irq_ready, NULL,
@ -653,6 +655,8 @@ static int cc2_request_alarm_irqs(struct cc2_data *data, struct device *dev)
int ret = 0;
data->irq_low = fwnode_irq_get_byname(dev_fwnode(dev), "low");
if (data->irq_low == -EPROBE_DEFER)
return data->irq_low;
if (data->irq_low > 0) {
ret = devm_request_threaded_irq(dev, data->irq_low, NULL,
cc2_low_interrupt,
@ -666,6 +670,8 @@ static int cc2_request_alarm_irqs(struct cc2_data *data, struct device *dev)
}
data->irq_high = fwnode_irq_get_byname(dev_fwnode(dev), "high");
if (data->irq_high == -EPROBE_DEFER)
return data->irq_high;
if (data->irq_high > 0) {
ret = devm_request_threaded_irq(dev, data->irq_high, NULL,
cc2_high_interrupt,