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Subject[PATCH v4 06/22] gpio: Probe pinctrl devices on demand
Date
When looking up a pin controller through its OF node, probe it if it
hasn't already.

The goal is to reduce deferred probes to a minimum, as it makes it very
cumbersome to find out why a device failed to probe, and can introduce
very big delays in when a critical device is probed.

Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
---

Changes in v4: None
Changes in v3: None
Changes in v2: None

drivers/gpio/gpiolib-of.c | 2 ++
1 file changed, 2 insertions(+)

diff --git a/drivers/gpio/gpiolib-of.c b/drivers/gpio/gpiolib-of.c
index 9a439dab7a87..05da9a56608d 100644
--- a/drivers/gpio/gpiolib-of.c
+++ b/drivers/gpio/gpiolib-of.c
@@ -359,6 +359,8 @@ static int of_gpiochip_add_pin_range(struct gpio_chip *chip)
if (ret)
break;

+ of_device_probe(pinspec.np);
+
pctldev = of_pinctrl_get(pinspec.np);
if (!pctldev)
return -EPROBE_DEFER;
--
2.4.3


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