---

yaml
---
r: 226676
b: refs/heads/master
c: 8d9af88
h: refs/heads/master
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 9796b323b5a1940f9ec62c3a6cf7e442bf540d53
+refs/heads/master: 8d9af88f55be89fa4c897ded3204ef12c947731e

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

@@ -317,6 +317,54 @@ omap_hwmod_mux_init(struct omap_device_pad *bpads, int nr_pads)
 	return NULL;
 }
 
+/* Assumes the calling function takes care of locking */
+void omap_hwmod_mux(struct omap_hwmod_mux_info *hmux, u8 state)
+{
+	int i;
+
+	for (i = 0; i < hmux->nr_pads; i++) {
+		struct omap_device_pad *pad = &hmux->pads[i];
+		int flags, val = -EINVAL;
+
+		flags = pad->flags;
+
+		switch (state) {
+		case _HWMOD_STATE_ENABLED:
+			if (flags & OMAP_DEVICE_PAD_ENABLED)
+				break;
+			flags |= OMAP_DEVICE_PAD_ENABLED;
+			val = pad->enable;
+			pr_debug("%s: Enabling %s %x\n", __func__,
+					pad->name, val);
+			break;
+		case _HWMOD_STATE_IDLE:
+			if (!(flags & OMAP_DEVICE_PAD_REMUX))
+				break;
+			flags &= ~OMAP_DEVICE_PAD_ENABLED;
+			val = pad->idle;
+			pr_debug("%s: Idling %s %x\n", __func__,
+					pad->name, val);
+			break;
+		case _HWMOD_STATE_DISABLED:
+		default:
+			/* Use safe mode unless OMAP_DEVICE_PAD_REMUX */
+			if (flags & OMAP_DEVICE_PAD_REMUX)
+				val = pad->off;
+			else
+				val = OMAP_MUX_MODE7;
+			flags &= ~OMAP_DEVICE_PAD_ENABLED;
+			pr_debug("%s: Disabling %s %x\n", __func__,
+					pad->name, val);
+		};
+
+		if (val >= 0) {
+			omap_mux_write(pad->partition, val,
+					pad->mux->reg_offset);
+			pad->flags = flags;
+		}
+	}
+}
+
 #ifdef CONFIG_DEBUG_FS
 
 #define OMAP_MUX_MAX_NR_FLAGS	10

trunk/arch/arm/mach-omap2/mux.h

@@ -171,6 +171,8 @@ struct omap_device_pad {
 	struct omap_mux			*mux;
 };
 
+struct omap_hwmod_mux_info;
+
 #if defined(CONFIG_OMAP_MUX)
 
 /**
@@ -195,6 +197,15 @@ int omap_mux_init_signal(const char *muxname, int val);
 extern struct omap_hwmod_mux_info *
 omap_hwmod_mux_init(struct omap_device_pad *bpads, int nr_pads);
 
+/**
+ * omap_hwmod_mux - omap hwmod specific pin muxing
+ * @hmux:		Pads for a hwmod
+ * @state:		Desired _HWMOD_STATE
+ *
+ * Called only from omap_hwmod.c, do not use.
+ */
+void omap_hwmod_mux(struct omap_hwmod_mux_info *hmux, u8 state);
+
 #else
 
 static inline int omap_mux_init_gpio(int gpio, int val)
@@ -212,6 +223,10 @@ omap_hwmod_mux_init(struct omap_device_pad *bpads, int nr_pads)
 	return NULL;
 }
 
+static inline void omap_hwmod_mux(struct omap_hwmod_mux_info *hmux, u8 state)
+{
+}
+
 static struct omap_board_mux *board_mux __initdata __maybe_unused;
 
 #endif

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

@@ -116,7 +116,6 @@
  * - Open Core Protocol Specification 2.2
  *
  * To do:
- * - pin mux handling
  * - handle IO mapping
  * - bus throughput & module latency measurement code
  *
@@ -149,6 +148,7 @@
 #include "cm44xx.h"
 #include "prm2xxx_3xxx.h"
 #include "prm44xx.h"
+#include "mux.h"
 
 /* Maximum microseconds to wait for OMAP module to softreset */
 #define MAX_MODULE_SOFTRESET_WAIT	10000
@@ -1229,7 +1229,9 @@ static int _enable(struct omap_hwmod *oh)
 	     oh->_state == _HWMOD_STATE_DISABLED) && oh->rst_lines_cnt == 1)
 		_deassert_hardreset(oh, oh->rst_lines[0].name);
 
-	/* XXX mux balls */
+	/* Mux pins for device runtime if populated */
+	if (oh->mux)
+		omap_hwmod_mux(oh->mux, _HWMOD_STATE_ENABLED);
 
 	_add_initiator_dep(oh, mpu_oh);
 	_enable_clocks(oh);
@@ -1276,6 +1278,10 @@ static int _idle(struct omap_hwmod *oh)
 	_del_initiator_dep(oh, mpu_oh);
 	_disable_clocks(oh);
 
+	/* Mux pins for device idle if populated */
+	if (oh->mux)
+		omap_hwmod_mux(oh->mux, _HWMOD_STATE_IDLE);
+
 	oh->_state = _HWMOD_STATE_IDLE;
 
 	return 0;
@@ -1334,7 +1340,9 @@ static int _shutdown(struct omap_hwmod *oh)
 	}
 	/* XXX Should this code also force-disable the optional clocks? */
 
-	/* XXX mux any associated balls to safe mode */
+	/* Mux pins to safe mode or use populated off mode values */
+	if (oh->mux)
+		omap_hwmod_mux(oh->mux, _HWMOD_STATE_DISABLED);
 
 	oh->_state = _HWMOD_STATE_DISABLED;