Add a device-tree node for the spinlock.
Remove the static device build code if CONFIG_OF
is set.
Update the hwspinlock driver to use the of_match method.
Add the information in Documentation/devicetree.
Signed-off-by: Benoit Cousson <b-cousson@xxxxxx>
Cc: Grant Likely <grant.likely@xxxxxxxxxxxx>
Cc: Ohad Ben-Cohen <ohad@xxxxxxxxxx>
---
arch/arm/boot/dts/omap4.dtsi | 5 +++++
arch/arm/mach-omap2/Makefile | 6 +++++-
drivers/hwspinlock/omap_hwspinlock.c | 11 +++++++++++
3 files changed, 21 insertions(+), 1 deletions(-)
diff --git a/arch/arm/boot/dts/omap4.dtsi b/arch/arm/boot/dts/omap4.dtsi
index a3efe76..231d7b4 100644
--- a/arch/arm/boot/dts/omap4.dtsi
+++ b/arch/arm/boot/dts/omap4.dtsi
@@ -105,5 +105,10 @@
reg = <0x48241000 0x1000>,
<0x48240100 0x0200>;
};
+
+ spinlock {
+ compatible = "ti,omap-spinlock";
+ hwmods = "spinlock";
+ };
};
};
diff --git a/arch/arm/mach-omap2/Makefile b/arch/arm/mach-omap2/Makefile
index 79e42a1..6ab9116 100644
--- a/arch/arm/mach-omap2/Makefile
+++ b/arch/arm/mach-omap2/Makefile
@@ -263,9 +263,13 @@ obj-y += $(smc91x-m) $(smc91x-y)
smsc911x-$(CONFIG_SMSC911X) := gpmc-smsc911x.o
obj-y += $(smsc911x-m) $(smsc911x-y)
-obj-$(CONFIG_ARCH_OMAP4) += hwspinlock.o
disp-$(CONFIG_OMAP2_DSS) := display.o
obj-y += $(disp-m) $(disp-y)
obj-y += common-board-devices.o twl-common.o
+
+# Do not build static device init code in case of DT build
+ifneq ($(CONFIG_OF),y)
+obj-$(CONFIG_ARCH_OMAP4) += hwspinlock.o
+endif
diff --git a/drivers/hwspinlock/omap_hwspinlock.c b/drivers/hwspinlock/omap_hwspinlock.c
index a8f0273..09dd132 100644
--- a/drivers/hwspinlock/omap_hwspinlock.c
+++ b/drivers/hwspinlock/omap_hwspinlock.c
@@ -203,11 +203,22 @@ static int omap_hwspinlock_remove(struct platform_device *pdev)
return 0;
}
+#if defined(CONFIG_OF)
+static const struct of_device_id spinlock_match[] = {
+ {.compatible = "ti,omap-spinlock", },
+ {},
+}
+MODULE_DEVICE_TABLE(of, spinlock_match);
+#else
+#define spinlock_match NULL
+#endif
+
static struct platform_driver omap_hwspinlock_driver = {
.probe = omap_hwspinlock_probe,
.remove = omap_hwspinlock_remove,
.driver = {
.name = "omap_hwspinlock",
+ .of_match_table = spinlock_match,
},
};
--
1.7.0.4
--
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