---

yaml
---
r: 331320
b: refs/heads/master
c: ee75d95
h: refs/heads/master
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: c7dad45f351e9bea8ebaa974f01b01c8f69432b4
+refs/heads/master: ee75d95cea05bd4f42a5db7b17dd8529d25beddd

trunk/arch/arm/mach-omap2/Makefile

@@ -199,6 +199,7 @@ obj-$(CONFIG_ARCH_OMAP4)		+= omap_hwmod_44xx_data.o
 
 # EMU peripherals
 obj-$(CONFIG_OMAP3_EMU)			+= emu.o
+obj-$(CONFIG_HW_PERF_EVENTS)		+= pmu.o
 
 # L3 interconnect
 obj-$(CONFIG_ARCH_OMAP3)		+= omap_l3_smx.o

trunk/arch/arm/mach-omap2/devices.c

@@ -434,34 +434,6 @@ static void omap_init_mcspi(void)
 static inline void omap_init_mcspi(void) {}
 #endif
 
-static struct resource omap2_pmu_resource = {
-	.start	= 3 + OMAP_INTC_START,
-	.flags	= IORESOURCE_IRQ,
-};
-
-static struct resource omap3_pmu_resource = {
-	.start	= 3 + OMAP_INTC_START,
-	.flags	= IORESOURCE_IRQ,
-};
-
-static struct platform_device omap_pmu_device = {
-	.name		= "arm-pmu",
-	.id		= ARM_PMU_DEVICE_CPU,
-	.num_resources	= 1,
-};
-
-static void omap_init_pmu(void)
-{
-	if (cpu_is_omap24xx())
-		omap_pmu_device.resource = &omap2_pmu_resource;
-	else if (cpu_is_omap34xx())
-		omap_pmu_device.resource = &omap3_pmu_resource;
-	else
-		return;
-
-	platform_device_register(&omap_pmu_device);
-}
-
 /**
  * omap_init_rng - bind the RNG hwmod to the RNG omap_device
  *
@@ -664,7 +636,6 @@ static int __init omap2_init_devices(void)
 		omap_init_mcpdm();
 		omap_init_mcspi();
 	}
-	omap_init_pmu();
 	omap_init_sti();
 	omap_init_rng();
 	omap_init_sham();

trunk/arch/arm/mach-omap2/omap_hwmod_2xxx_ipblock_data.c

@@ -218,8 +218,14 @@ struct omap_hwmod omap2xxx_l4_wkup_hwmod = {
 };
 
 /* MPU */
+static struct omap_hwmod_irq_info omap2xxx_mpu_irqs[] = {
+	{ .name = "pmu", .irq = 3 },
+	{ .irq = -1 }
+};
+
 struct omap_hwmod omap2xxx_mpu_hwmod = {
 	.name		= "mpu",
+	.mpu_irqs	= omap2xxx_mpu_irqs,
 	.class		= &mpu_hwmod_class,
 	.main_clk	= "mpu_ck",
 };

trunk/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c

@@ -93,8 +93,14 @@ static struct omap_hwmod omap3xxx_l4_sec_hwmod = {
 };
 
 /* MPU */
+static struct omap_hwmod_irq_info omap3xxx_mpu_irqs[] = {
+	{ .name = "pmu", .irq = 3 },
+	{ .irq = -1 }
+};
+
 static struct omap_hwmod omap3xxx_mpu_hwmod = {
 	.name		= "mpu",
+	.mpu_irqs	= omap3xxx_mpu_irqs,
 	.class		= &mpu_hwmod_class,
 	.main_clk	= "arm_fck",
 };

trunk/arch/arm/mach-omap2/pmu.c

@@ -0,0 +1,82 @@
+/*
+ * OMAP2 ARM Performance Monitoring Unit (PMU) Support
+ *
+ * Copyright (C) 2012 Texas Instruments, Inc.
+ *
+ * Contacts:
+ * Jon Hunter <jon-hunter@ti.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#include <asm/pmu.h>
+
+#include <plat/omap_hwmod.h>
+#include <plat/omap_device.h>
+
+static char *omap2_pmu_oh_names[] = {"mpu"};
+static char *omap3_pmu_oh_names[] = {"mpu", "debugss"};
+static struct platform_device *omap_pmu_dev;
+
+/**
+ * omap2_init_pmu - creates and registers PMU platform device
+ * @oh_num:	Number of OMAP HWMODs required to create PMU device
+ * @oh_names:	Array of OMAP HWMODS names required to create PMU device
+ *
+ * Uses OMAP HWMOD framework to create and register an ARM PMU device
+ * from a list of HWMOD names passed. Currently supports OMAP2 and
+ * OMAP3 devices.
+ */
+static int __init omap2_init_pmu(unsigned oh_num, char *oh_names[])
+{
+	int i;
+	struct omap_hwmod *oh[2];
+	char *dev_name = "arm-pmu";
+
+	if ((!oh_num) || (oh_num > 2))
+		return -EINVAL;
+
+	for (i = 0; i < oh_num; i++) {
+		oh[i] = omap_hwmod_lookup(oh_names[i]);
+		if (!oh[i]) {
+			pr_err("Could not look up %s hwmod\n", oh_names[i]);
+			return -ENODEV;
+		}
+	}
+
+	omap_pmu_dev = omap_device_build_ss(dev_name, -1, oh, oh_num, NULL, 0,
+					    NULL, 0, 0);
+	WARN(IS_ERR(omap_pmu_dev), "Can't build omap_device for %s.\n",
+	     dev_name);
+
+	return IS_ERR(omap_pmu_dev) ? PTR_ERR(omap_pmu_dev) : 0;
+}
+
+static int __init omap_init_pmu(void)
+{
+	unsigned oh_num;
+	char **oh_names;
+
+	/*
+	 * To create an ARM-PMU device the following HWMODs
+	 * are required for the various OMAP2+ devices.
+	 *
+	 * OMAP24xx:	mpu
+	 * OMAP3xxx:	mpu, debugss
+	 */
+	if (cpu_is_omap24xx()) {
+		oh_num = ARRAY_SIZE(omap2_pmu_oh_names);
+		oh_names = omap2_pmu_oh_names;
+	} else if (cpu_is_omap34xx()) {
+		oh_num = ARRAY_SIZE(omap3_pmu_oh_names);
+		oh_names = omap3_pmu_oh_names;
+	} else {
+		return 0;
+	}
+
+	return omap2_init_pmu(oh_num, oh_names);
+}
+subsys_initcall(omap_init_pmu);