ARM: OMAP2+: l3-noc: Add support for device-tree

Add device-tree support for the l3-noc driver.

Use platform_driver_register to defer the probing at device init
time.

Add documentation for the l3-noc bindings.

Signed-off-by: Benoit Cousson <b-cousson@ti.com>
Cc: Tony Lindgren <tony@atomide.com>
Cc: Santosh Shilimkar <santosh.shilimkar@ti.com>

1 files changed, 19 insertions, 6 deletions

diff --git a/arch/arm/mach-omap2/omap_l3_noc.c b/arch/arm/mach-omap2/omap_l3_noc.c
index 07a3d3ede768..c8b1bef92e5a 100644
--- a/arch/arm/mach-omap2/omap_l3_noc.c
+++ b/arch/arm/mach-omap2/omap_l3_noc.c
@@ -127,7 +127,7 @@ static irqreturn_t l3_interrupt_handler(int irq, void *_l3)
         return IRQ_HANDLED;
 }
 
-static int __init omap4_l3_probe(struct platform_device *pdev)
+static int __devinit omap4_l3_probe(struct platform_device *pdev)
 {
         static struct omap4_l3 *l3;
         struct resource *res;
@@ -218,7 +218,7 @@ err0:
         return ret;
 }
 
-static int __exit omap4_l3_remove(struct platform_device *pdev)
+static int __devexit omap4_l3_remove(struct platform_device *pdev)
 {
         struct omap4_l3 *l3 = platform_get_drvdata(pdev);
 
@@ -232,16 +232,29 @@ static int __exit omap4_l3_remove(struct platform_device *pdev)
         return 0;
 }
 
+#if defined(CONFIG_OF)
+static const struct of_device_id l3_noc_match[] = {
+        {.compatible = "ti,omap4-l3-noc", },
+        {},
+}
+MODULE_DEVICE_TABLE(of, l3_noc_match);
+#else
+#define l3_noc_match NULL
+#endif
+
 static struct platform_driver omap4_l3_driver = {
-        .remove = __exit_p(omap4_l3_remove),
-        .driver = {
-        .name = "omap_l3_noc",
+        .probe          = omap4_l3_probe,
+        .remove         = __devexit_p(omap4_l3_remove),
+        .driver         = {
+                .name           = "omap_l3_noc",
+                .owner          = THIS_MODULE,
+                .of_match_table = l3_noc_match,
         },
 };
 
 static int __init omap4_l3_init(void)
 {
-        return platform_driver_probe(&omap4_l3_driver, omap4_l3_probe);
+        return platform_driver_register(&omap4_l3_driver);
 }
 postcore_initcall_sync(omap4_l3_init);