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authorLee Jones <lee.jones@linaro.org>2012-05-26 06:09:29 +0100
committerArnd Bergmann <arnd@arndb.de>2012-06-01 02:03:25 +0200
commit855f80cd1683179b251b01d232b3ae228c614766 (patch)
tree0fb0d209c5e3ec073368c396515c262814da397c /drivers/pinctrl
parent76f901eb4659779ecacd0e4eba49f55442daef53 (diff)
downloadop-kernel-dev-855f80cd1683179b251b01d232b3ae228c614766.zip
op-kernel-dev-855f80cd1683179b251b01d232b3ae228c614766.tar.gz
pinctrl-nomadik: Allow Device Tree driver probing
The Nomadik GPIO controller now relies on Nomadik pinctrl, however the pinctrl driver is not currently started by any ux500 platform. This is requred or GPIOs do not work at all. Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'drivers/pinctrl')
-rw-r--r--drivers/pinctrl/pinctrl-nomadik.c20
1 files changed, 19 insertions, 1 deletions
diff --git a/drivers/pinctrl/pinctrl-nomadik.c b/drivers/pinctrl/pinctrl-nomadik.c
index b8e01c3..b26395d 100644
--- a/drivers/pinctrl/pinctrl-nomadik.c
+++ b/drivers/pinctrl/pinctrl-nomadik.c
@@ -24,6 +24,7 @@
#include <linux/irq.h>
#include <linux/irqdomain.h>
#include <linux/slab.h>
+#include <linux/of_device.h>
#include <linux/pinctrl/pinctrl.h>
#include <linux/pinctrl/pinmux.h>
#include <linux/pinctrl/pinconf.h>
@@ -1688,18 +1689,34 @@ static struct pinctrl_desc nmk_pinctrl_desc = {
.owner = THIS_MODULE,
};
+static const struct of_device_id nmk_pinctrl_match[] = {
+ {
+ .compatible = "stericsson,nmk_pinctrl",
+ .data = (void *)PINCTRL_NMK_DB8500,
+ },
+ {},
+};
+
static int __devinit nmk_pinctrl_probe(struct platform_device *pdev)
{
const struct platform_device_id *platid = platform_get_device_id(pdev);
+ struct device_node *np = pdev->dev.of_node;
struct nmk_pinctrl *npct;
+ unsigned int version = 0;
int i;
npct = devm_kzalloc(&pdev->dev, sizeof(*npct), GFP_KERNEL);
if (!npct)
return -ENOMEM;
+ if (platid)
+ version = platid->driver_data;
+ else if (np)
+ version = (unsigned int)
+ of_match_device(nmk_pinctrl_match, &pdev->dev)->data;
+
/* Poke in other ASIC variants here */
- if (platid->driver_data == PINCTRL_NMK_DB8500)
+ if (version == PINCTRL_NMK_DB8500)
nmk_pinctrl_db8500_init(&npct->soc);
/*
@@ -1758,6 +1775,7 @@ static struct platform_driver nmk_pinctrl_driver = {
.driver = {
.owner = THIS_MODULE,
.name = "pinctrl-nomadik",
+ .of_match_table = nmk_pinctrl_match,
},
.probe = nmk_pinctrl_probe,
.id_table = nmk_pinctrl_id,
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