From e49d5539c06f1d026a23c1c764495d9195fbc345 Mon Sep 17 00:00:00 2001
From: Paul Walmsley <paul@pwsan.com>
Date: Thu, 19 Apr 2012 04:04:27 -0600
Subject: [PATCH] --- yaml --- r: 303023 b: refs/heads/master c:
 2d6141baf15df188283ada7c0fa04679c4fcf1c7 h: refs/heads/master i:   303021:
 0dd401938249213384dd24e712007d877c358889   303019:
 b56a7d11ea49740afc4e20088b8428c47a73775b   303015:
 ec797c16515f36d150b996c4d2671517499ec70a   303007:
 0b2906a8ea6c5f5644bb45f7c2842e7128d570b7 v: v3

---
 [refs]                                 |  2 +-
 trunk/arch/arm/mach-omap2/omap_hwmod.c | 39 +++++++++++++++++++-------
 2 files changed, 30 insertions(+), 11 deletions(-)

diff --git a/[refs] b/[refs]
index 4d4f5459bf0a..c20bb1f98f9d 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 515237d6fef36ebc476a4ce9204a3234ac14cf45
+refs/heads/master: 2d6141baf15df188283ada7c0fa04679c4fcf1c7
diff --git a/trunk/arch/arm/mach-omap2/omap_hwmod.c b/trunk/arch/arm/mach-omap2/omap_hwmod.c
index 230119756504..241c663a8f62 100644
--- a/trunk/arch/arm/mach-omap2/omap_hwmod.c
+++ b/trunk/arch/arm/mach-omap2/omap_hwmod.c
@@ -1024,6 +1024,27 @@ static int __init _find_mpu_port_index(struct omap_hwmod *oh)
 	return (found) ? i : -EINVAL;
 }
 
+/**
+ * _find_mpu_rt_port - return omap_hwmod_ocp_if accessible by the MPU
+ * @oh: struct omap_hwmod *
+ *
+ * Given a pointer to a struct omap_hwmod record @oh, return a pointer
+ * to the struct omap_hwmod_ocp_if record that is used by the MPU to
+ * communicate with the IP block.  This interface need not be directly
+ * connected to the MPU (and almost certainly is not), but is directly
+ * connected to the IP block represented by @oh.  Returns a pointer
+ * to the struct omap_hwmod_ocp_if * upon success, or returns NULL upon
+ * error or if there does not appear to be a path from the MPU to this
+ * IP block.
+ */
+static struct omap_hwmod_ocp_if *_find_mpu_rt_port(struct omap_hwmod *oh)
+{
+	if (!oh || oh->_int_flags & _HWMOD_NO_MPU_PORT || oh->slaves_cnt == 0)
+		return NULL;
+
+	return oh->slaves[oh->_mpu_port_index];
+};
+
 /**
  * _find_mpu_rt_addr_space - return MPU register target address space for @oh
  * @oh: struct omap_hwmod *
@@ -1037,10 +1058,7 @@ static struct omap_hwmod_addr_space * __init _find_mpu_rt_addr_space(struct omap
 	struct omap_hwmod_addr_space *mem;
 	int found = 0, i = 0;
 
-	if (!oh || oh->_int_flags & _HWMOD_NO_MPU_PORT || oh->slaves_cnt == 0)
-		return NULL;
-
-	os = oh->slaves[oh->_mpu_port_index];
+	os = _find_mpu_rt_port(oh);
 	if (!os->addr)
 		return NULL;
 
@@ -1298,12 +1316,11 @@ static int _wait_target_ready(struct omap_hwmod *oh)
 	if (!oh)
 		return -EINVAL;
 
-	if (oh->_int_flags & _HWMOD_NO_MPU_PORT)
+	if (oh->flags & HWMOD_NO_IDLEST)
 		return 0;
 
-	os = oh->slaves[oh->_mpu_port_index];
-
-	if (oh->flags & HWMOD_NO_IDLEST)
+	os = _find_mpu_rt_port(oh);
+	if (!os)
 		return 0;
 
 	/* XXX check module SIDLEMODE */
@@ -2747,6 +2764,7 @@ int omap_hwmod_get_resource_byname(struct omap_hwmod *oh, unsigned int type,
 struct powerdomain *omap_hwmod_get_pwrdm(struct omap_hwmod *oh)
 {
 	struct clk *c;
+	struct omap_hwmod_ocp_if *oi;
 
 	if (!oh)
 		return NULL;
@@ -2754,9 +2772,10 @@ struct powerdomain *omap_hwmod_get_pwrdm(struct omap_hwmod *oh)
 	if (oh->_clk) {
 		c = oh->_clk;
 	} else {
-		if (oh->_int_flags & _HWMOD_NO_MPU_PORT)
+		oi = _find_mpu_rt_port(oh);
+		if (!oi)
 			return NULL;
-		c = oh->slaves[oh->_mpu_port_index]->_clk;
+		c = oi->_clk;
 	}
 
 	if (!c->clkdm)