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drm/bridge: maxim-max96745: Make lock GPIO optional

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Signed-off-by: Wyon Bi <bivvy.bi@rock-chips.com>
Change-Id: I45f6469f98ab7cbbab3fb5d04aa6a9be03324422
This commit is contained in:
Wyon Bi
2023-03-07 03:52:19 +00:00
committed by Tao Huang
parent 964565ca62
commit a5be0ba345
1 changed files with 15 additions and 10 deletions
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25
drivers/gpu/drm/bridge/maxim-max96745.c
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@@ -51,6 +51,9 @@ static bool max96745_bridge_link_locked(struct max96745_bridge *ser)
{
u32 val;
if (ser->lock.gpio)
return gpiod_get_value_cansleep(ser->lock.gpio);
if (regmap_read(ser->regmap, 0x002a, &val))
return false;
@@ -238,7 +241,7 @@ static int max96745_bridge_probe(struct platform_device *pdev)
if (!ser->regmap)
return dev_err_probe(dev, -ENODEV, "failed to get regmap\n");
ser->lock.gpio = devm_gpiod_get(dev, "lock", GPIOD_IN);
ser->lock.gpio = devm_gpiod_get_optional(dev, "lock", GPIOD_IN);
if (IS_ERR(ser->lock.gpio))
return dev_err_probe(dev, PTR_ERR(ser->lock.gpio),
"failed to get lock GPIO\n");
@@ -253,16 +256,18 @@ static int max96745_bridge_probe(struct platform_device *pdev)
return dev_err_probe(dev, ret,
"failed to register extcon device\n");
ser->lock.irq = gpiod_to_irq(ser->lock.gpio);
if (ser->lock.irq < 0)
return ser->lock.irq;
if (ser->lock.gpio) {
ser->lock.irq = gpiod_to_irq(ser->lock.gpio);
if (ser->lock.irq < 0)
return ser->lock.irq;
ret = devm_request_threaded_irq(dev, ser->lock.irq, NULL,
max96745_bridge_lock_irq_handler,
IRQF_TRIGGER_RISING | IRQF_ONESHOT,
dev_name(dev), ser);
if (ret)
return dev_err_probe(dev, ret, "failed to request lock IRQ\n");
ret = devm_request_threaded_irq(dev, ser->lock.irq, NULL,
max96745_bridge_lock_irq_handler,
IRQF_TRIGGER_RISING | IRQF_ONESHOT,
dev_name(dev), ser);
if (ret)
return dev_err_probe(dev, ret, "failed to request lock IRQ\n");
}
ser->bridge.funcs = &max96745_bridge_funcs;
ser->bridge.of_node = dev->of_node;