diff options
| author | Bernhard Walle <bernhard@bwalle.de> | 2016-02-10 21:37:30 +0100 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2016-02-12 22:35:00 +0000 |
| commit | d4930cf0ae33e944427f974f33bc43b8e6c56456 (patch) | |
| tree | 1dd14a3a118d8549154e3e2d8ed37a6f53210347 /drivers | |
| parent | 92e963f50fc74041b5e9e744c330dca48e04f08d (diff) | |
| download | linux-d4930cf0ae33e944427f974f33bc43b8e6c56456.tar.gz | |
regulator: ltc3589: Make IRQ optional
It's perfectly valid to use the LTC3589 without an interrupt pin connected to it. Currently, the driver probing fails when client->irq is 0 (which means "no interrupt"). Don't register the interrupt handler in that case but successfully finish the device probing instead. Signed-off-by: Bernhard Walle <bernhard@bwalle.de> Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/regulator/ltc3589.c | 15 |
1 files changed, 9 insertions, 6 deletions
diff --git a/drivers/regulator/ltc3589.c b/drivers/regulator/ltc3589.c index 972c386b2690..47bef328fb58 100644 --- a/drivers/regulator/ltc3589.c +++ b/drivers/regulator/ltc3589.c @@ -520,12 +520,15 @@ static int ltc3589_probe(struct i2c_client *client, } } - ret = devm_request_threaded_irq(dev, client->irq, NULL, ltc3589_isr, - IRQF_TRIGGER_LOW | IRQF_ONESHOT, - client->name, ltc3589); - if (ret) { - dev_err(dev, "Failed to request IRQ: %d\n", ret); - return ret; + if (client->irq) { + ret = devm_request_threaded_irq(dev, client->irq, NULL, + ltc3589_isr, + IRQF_TRIGGER_LOW | IRQF_ONESHOT, + client->name, ltc3589); + if (ret) { + dev_err(dev, "Failed to request IRQ: %d\n", ret); + return ret; + } } return 0; |