1 files changed, 25 insertions, 19 deletions

diff --git a/arch/arm/mach-omap2/mux.c b/arch/arm/mach-omap2/mux.c
index 701e17cba46..f62f7537d89 100644
--- a/arch/arm/mach-omap2/mux.c
+++ b/arch/arm/mach-omap2/mux.c
@@ -36,8 +36,9 @@
 #include <linux/interrupt.h>
 
 
-#include <plat/omap_hwmod.h>
+#include "omap_hwmod.h"
 
+#include "soc.h"
 #include "control.h"
 #include "mux.h"
 #include "prm.h"
@@ -69,18 +70,18 @@ struct omap_mux_partition *omap_mux_get(const char *name)
 u16 omap_mux_read(struct omap_mux_partition *partition, u16 reg)
 {
 	if (partition->flags & OMAP_MUX_REG_8BIT)
-		return __raw_readb(partition->base + reg);
+		return readb_relaxed(partition->base + reg);
 	else
-		return __raw_readw(partition->base + reg);
+		return readw_relaxed(partition->base + reg);
 }
 
 void omap_mux_write(struct omap_mux_partition *partition, u16 val,
 			   u16 reg)
 {
 	if (partition->flags & OMAP_MUX_REG_8BIT)
-		__raw_writeb(val, partition->base + reg);
+		writeb_relaxed(val, partition->base + reg);
 	else
-		__raw_writew(val, partition->base + reg);
+		writew_relaxed(val, partition->base + reg);
 }
 
 void omap_mux_write_array(struct omap_mux_partition *partition,
@@ -134,10 +135,7 @@ static int __init _omap_mux_init_gpio(struct omap_mux_partition *partition,
 
 	old_mode = omap_mux_read(partition, gpio_mux->reg_offset);
 	mux_mode = val & ~(OMAP_MUX_NR_MODES - 1);
-	if (partition->flags & OMAP_MUX_GPIO_IN_MODE3)
-		mux_mode |= OMAP_MUX_MODE3;
-	else
-		mux_mode |= OMAP_MUX_MODE4;
+	mux_mode |= partition->gpio;
 	pr_debug("%s: Setting signal %s.gpio%i 0x%04x -> 0x%04x\n", __func__,
 		 gpio_mux->muxnames[0], gpio, old_mode, mux_mode);
 	omap_mux_write(partition, mux_mode, gpio_mux->reg_offset);
@@ -185,8 +183,10 @@ static int __init _omap_mux_get_by_name(struct omap_mux_partition *partition,
 		m0_entry = mux->muxnames[0];
 
 		/* First check for full name in mode0.muxmode format */
-		if (mode0_len && strncmp(muxname, m0_entry, mode0_len))
-			continue;
+		if (mode0_len)
+			if (strncmp(muxname, m0_entry, mode0_len) ||
+			    (strlen(m0_entry) != mode0_len))
+				continue;
 
 		/* Then check for muxmode only */
 		for (i = 0; i < OMAP_MUX_NR_MODES; i++) {
@@ -213,8 +213,6 @@ static int __init _omap_mux_get_by_name(struct omap_mux_partition *partition,
 		return -EINVAL;
 	}
 
-	pr_err("%s: Could not find signal %s\n", __func__, muxname);
-
 	return -ENODEV;
 }
 
@@ -236,6 +234,8 @@ int __init omap_mux_get_by_name(const char *muxname,
 		return mux_mode;
 	}
 
+	pr_err("%s: Could not find signal %s\n", __func__, muxname);
+
 	return -ENODEV;
 }
 
@@ -741,8 +741,9 @@ static void __init omap_mux_dbg_create_entry(
 	list_for_each_entry(e, &partition->muxmodes, node) {
 		struct omap_mux *m = &e->mux;
 
-		(void)debugfs_create_file(m->muxnames[0], S_IWUSR, mux_dbg_dir,
-					  m, &omap_mux_dbg_signal_fops);
+		(void)debugfs_create_file(m->muxnames[0], S_IWUSR | S_IRUGO,
+					  mux_dbg_dir, m,
+					  &omap_mux_dbg_signal_fops);
 	}
 }
 
@@ -799,7 +800,7 @@ int __init omap_mux_late_init(void)
 			struct omap_mux *m = &e->mux;
 			u16 mode = omap_mux_read(partition, m->reg_offset);
 
-			if (OMAP_MODE_GPIO(mode))
+			if (OMAP_MODE_GPIO(partition, mode))
 				continue;
 
 #ifndef CONFIG_DEBUG_FS
@@ -812,6 +813,12 @@ int __init omap_mux_late_init(void)
 		}
 	}
 
+	omap_mux_dbg_init();
+
+	/* see pinctrl-single-omap for the wake-up interrupt handling */
+	if (of_have_populated_dt())
+		return 0;
+
 	ret = request_irq(omap_prcm_event_to_irq("io"),
 		omap_hwmod_mux_handle_irq, IRQF_SHARED | IRQF_NO_SUSPEND,
 			"hwmod_io", omap_mux_late_init);
@@ -819,8 +826,6 @@ int __init omap_mux_late_init(void)
 	if (ret)
 		pr_warning("mux: Failed to setup hwmod io irq %d\n", ret);
 
-	omap_mux_dbg_init();
-
 	return 0;
 }
 
@@ -1064,7 +1069,7 @@ static void __init omap_mux_init_list(struct omap_mux_partition *partition,
 		}
 #else
 		/* Skip pins that are not muxed as GPIO by bootloader */
-		if (!OMAP_MODE_GPIO(omap_mux_read(partition,
+		if (!OMAP_MODE_GPIO(partition, omap_mux_read(partition,
 				    superset->reg_offset))) {
 			superset++;
 			continue;
@@ -1131,6 +1136,7 @@ int __init omap_mux_init(const char *name, u32 flags,
 
 	partition->name = name;
 	partition->flags = flags;
+	partition->gpio = flags & OMAP_MUX_MODE7;
 	partition->size = mux_size;
 	partition->phys = mux_pbase;
 	partition->base = ioremap(mux_pbase, mux_size);