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Subject[PATCH v2 1/2] OMAP: mailbox: add device tree support
Date
Adapt driver to use DT if provided.

Signed-off-by: Omar Ramirez Luna <omar.luna@linaro.org>
---
.../devicetree/bindings/arm/omap/mailbox.txt | 9 +++++++++
arch/arm/mach-omap2/devices.c | 3 +++
arch/arm/mach-omap2/mailbox.c | 12 ++++++++++++
3 files changed, 24 insertions(+)
create mode 100644 Documentation/devicetree/bindings/arm/omap/mailbox.txt

diff --git a/Documentation/devicetree/bindings/arm/omap/mailbox.txt b/Documentation/devicetree/bindings/arm/omap/mailbox.txt
new file mode 100644
index 0000000..c57c0d5
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/omap/mailbox.txt
@@ -0,0 +1,9 @@
+OMAP Mailbox module
+
+Required properties:
+ compatible : should be "ti,omap2-mailbox" for OMAP2 mailbox
+ compatible : should be "ti,omap3-mailbox" for OMAP3 mailbox
+ compatible : should be "ti,omap4-mailbox" for OMAP4 mailbox
+
+Optional properties:
+ None
diff --git a/arch/arm/mach-omap2/devices.c b/arch/arm/mach-omap2/devices.c
index c00c689..19093fb 100644
--- a/arch/arm/mach-omap2/devices.c
+++ b/arch/arm/mach-omap2/devices.c
@@ -279,6 +279,9 @@ static inline void __init omap_init_mbox(void)
struct omap_hwmod *oh;
struct platform_device *pdev;

+ if (of_have_populated_dt())
+ return;
+
oh = omap_hwmod_lookup("mailbox");
if (!oh) {
pr_err("%s: unable to find hwmod\n", __func__);
diff --git a/arch/arm/mach-omap2/mailbox.c b/arch/arm/mach-omap2/mailbox.c
index 6875be8..80beadf 100644
--- a/arch/arm/mach-omap2/mailbox.c
+++ b/arch/arm/mach-omap2/mailbox.c
@@ -13,6 +13,7 @@
#include <linux/module.h>
#include <linux/clk.h>
#include <linux/err.h>
+#include <linux/of_device.h>
#include <linux/platform_device.h>
#include <linux/io.h>
#include <linux/pm_runtime.h>
@@ -400,11 +401,22 @@ static int __devexit omap2_mbox_remove(struct platform_device *pdev)
return 0;
}

+#if defined(CONFIG_OF)
+static const struct of_device_id omap_mailbox_of_match[] = {
+ { .compatible = "ti,omap2-mailbox" },
+ { .compatible = "ti,omap3-mailbox" },
+ { .compatible = "ti,omap4-mailbox" },
+ {},
+};
+MODULE_DEVICE_TABLE(of, omap_mailbox_of_match);
+#endif
+
static struct platform_driver omap2_mbox_driver = {
.probe = omap2_mbox_probe,
.remove = __devexit_p(omap2_mbox_remove),
.driver = {
.name = "omap-mailbox",
+ .of_match_table = of_match_ptr(omap_mailbox_of_match),
},
};

--
1.7.9.5


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