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Message-Id: <1438089593-7696-9-git-send-email-tomeu.vizoso@collabora.com>
Date: Tue, 28 Jul 2015 15:19:39 +0200
From: Tomeu Vizoso <tomeu.vizoso@...labora.com>
To: linux-kernel@...r.kernel.org
Cc: Stephen Warren <swarren@...dotorg.org>,
Javier Martinez Canillas <javier@....samsung.com>,
Mark Brown <broonie@...nel.org>,
Thierry Reding <thierry.reding@...il.com>,
"Rafael J. Wysocki" <rjw@...ysocki.net>,
linux-arm-kernel@...ts.infradead.org,
Dmitry Torokhov <dmitry.torokhov@...il.com>,
devicetree@...r.kernel.org,
Linus Walleij <linus.walleij@...aro.org>,
linux-acpi@...r.kernel.org, Arnd Bergmann <arnd@...db.de>,
Tomeu Vizoso <tomeu.vizoso@...labora.com>,
linux-gpio@...r.kernel.org, Alexandre Courbot <gnurou@...il.com>
Subject: [PATCH v2 08/22] gpio: Probe pinctrl devices on demand
When looking up a pin controller through its firmware 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@...labora.com>
---
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 31a6b18a6542..2a6379c1fea7 100644
--- a/drivers/gpio/gpiolib-of.c
+++ b/drivers/gpio/gpiolib-of.c
@@ -358,6 +358,8 @@ static int of_gpiochip_add_pin_range(struct gpio_chip *chip)
if (ret)
break;
+ fwnode_ensure_device(&pinspec.np->fwnode);
+
pctldev = of_pinctrl_get(pinspec.np);
if (!pctldev)
return -EPROBE_DEFER;
--
2.4.3
--
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