arm/dts: OMAP4: Add gpio nodes
Add the 6 GPIOs controller nodes present in OMAP4.
Remove gpio static device initialisation if DT is populated.
Signed-off-by: Benoit Cousson <b-cousson@ti.com>
Cc: Grant Likely <grant.likely@secretlab.ca>
diff --git a/arch/arm/boot/dts/omap4.dtsi b/arch/arm/boot/dts/omap4.dtsi
index 3d35559..7f8463b 100644
--- a/arch/arm/boot/dts/omap4.dtsi
+++ b/arch/arm/boot/dts/omap4.dtsi
@@ -104,6 +104,60 @@
<0x48240100 0x0100>;
};
+ gpio1: gpio@4a310000 {
+ compatible = "ti,omap4-gpio";
+ ti,hwmods = "gpio1";
+ gpio-controller;
+ #gpio-cells = <2>;
+ interrupt-controller;
+ #interrupt-cells = <1>;
+ };
+
+ gpio2: gpio@48055000 {
+ compatible = "ti,omap4-gpio";
+ ti,hwmods = "gpio2";
+ gpio-controller;
+ #gpio-cells = <2>;
+ interrupt-controller;
+ #interrupt-cells = <1>;
+ };
+
+ gpio3: gpio@48057000 {
+ compatible = "ti,omap4-gpio";
+ ti,hwmods = "gpio3";
+ gpio-controller;
+ #gpio-cells = <2>;
+ interrupt-controller;
+ #interrupt-cells = <1>;
+ };
+
+ gpio4: gpio@48059000 {
+ compatible = "ti,omap4-gpio";
+ ti,hwmods = "gpio4";
+ gpio-controller;
+ #gpio-cells = <2>;
+ interrupt-controller;
+ #interrupt-cells = <1>;
+ };
+
+ gpio5: gpio@4805b000 {
+ compatible = "ti,omap4-gpio";
+ ti,hwmods = "gpio5";
+ gpio-controller;
+ #gpio-cells = <2>;
+ interrupt-controller;
+ #interrupt-cells = <1>;
+ };
+
+ gpio6: gpio@4805d000 {
+ compatible = "ti,omap4-gpio";
+ ti,hwmods = "gpio6";
+ gpio-controller;
+ #gpio-cells = <2>;
+ interrupt-controller;
+ #interrupt-cells = <1>;
+ };
+
uart1: serial@4806a000 {
compatible = "ti,omap4-uart";
ti,hwmods = "uart1";
diff --git a/arch/arm/mach-omap2/gpio.c b/arch/arm/mach-omap2/gpio.c
index 8cbfbc2..8412746 100644
--- a/arch/arm/mach-omap2/gpio.c
+++ b/arch/arm/mach-omap2/gpio.c
@@ -20,6 +20,7 @@
#include <linux/err.h>
#include <linux/slab.h>
#include <linux/interrupt.h>
+#include <linux/of.h>
#include <plat/omap_hwmod.h>
#include <plat/omap_device.h>
@@ -122,7 +123,10 @@
*/
static int __init omap2_gpio_init(void)
{
- return omap_hwmod_for_each_by_class("gpio", omap2_gpio_dev_init,
- NULL);
+ /* If dtb is there, the devices will be created dynamically */
+ if (of_have_populated_dt())
+ return -ENODEV;
+
+ return omap_hwmod_for_each_by_class("gpio", omap2_gpio_dev_init, NULL);
}
postcore_initcall(omap2_gpio_init);