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authorRobert Jarzmik <robert.jarzmik@free.fr>2015-11-13 21:22:38 +0100
committerLinus Walleij <linus.walleij@linaro.org>2015-11-19 09:24:38 +0100
commiteae122b829483f677dc7784f82437c5d0274e019 (patch)
tree6c9a6863d93dcd06db0a6783d4dfe23b5760e658 /drivers/gpio/gpio-pxa.c
parentfe6435282b4c6f036427cdee83a2a83356d636c0 (diff)
gpio: pxa: change initcall level second attempt
This patch is a second attempt at what was previously in commit 6c7e660a27da ("gpio: pxa: set initcall level to module init"). The goal is the same : enable gpio & pinctrl driver to work together. As pinctrl driver will be initialized at device level, the gpio should be as well, so that the deferring mechanism is honored. Yet this patch should also respect the legacy platforms, so the set of constraints is : - in legacy platforms (ie. non dt), gpio_[gs]et_*() should be available for machine code => core initcall - in new platforms (ie. dt based), pinctrl will be available and no machine code => device initcall In order to fullfill all these constraints, the initcall level is either postcore for non devicetree platforms, and device for devicetree platforms. Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/gpio/gpio-pxa.c')
-rw-r--r--drivers/gpio/gpio-pxa.c16
1 files changed, 14 insertions, 2 deletions
diff --git a/drivers/gpio/gpio-pxa.c b/drivers/gpio/gpio-pxa.c
index df2ce550f309..bce99182578b 100644
--- a/drivers/gpio/gpio-pxa.c
+++ b/drivers/gpio/gpio-pxa.c
@@ -690,11 +690,23 @@ static struct platform_driver pxa_gpio_driver = {
.id_table = gpio_id_table,
};
-static int __init pxa_gpio_init(void)
+static int __init pxa_gpio_legacy_init(void)
{
+ if (of_have_populated_dt())
+ return 0;
+
return platform_driver_register(&pxa_gpio_driver);
}
-postcore_initcall(pxa_gpio_init);
+postcore_initcall(pxa_gpio_legacy_init);
+
+static int __init pxa_gpio_dt_init(void)
+{
+ if (of_have_populated_dt())
+ return platform_driver_register(&pxa_gpio_driver);
+
+ return 0;
+}
+device_initcall(pxa_gpio_dt_init);
#ifdef CONFIG_PM
static int pxa_gpio_suspend(void)