6 files changed, 45 insertions, 1 deletions

diff --git a/arch/arm/plat-omap/common.c b/arch/arm/plat-omap/common.c
index bf1eaf3a27d4..dddc0273bc8b 100644
--- a/arch/arm/plat-omap/common.c
+++ b/arch/arm/plat-omap/common.c
@@ -172,6 +172,32 @@ unsigned long long sched_clock(void)
                                   clocksource_32k.mult, clocksource_32k.shift);
 }
 
+/**
+ * read_persistent_clock -  Return time from a persistent clock.
+ *
+ * Reads the time from a source which isn't disabled during PM, the
+ * 32k sync timer.  Convert the cycles elapsed since last read into
+ * nsecs and adds to a monotonically increasing timespec.
+ */
+static struct timespec persistent_ts;
+static cycles_t cycles, last_cycles;
+void read_persistent_clock(struct timespec *ts)
+{
+        unsigned long long nsecs;
+        cycles_t delta;
+        struct timespec *tsp = &persistent_ts;
+
+        last_cycles = cycles;
+        cycles = clocksource_32k.read(&clocksource_32k);
+        delta = cycles - last_cycles;
+
+        nsecs = clocksource_cyc2ns(delta,
+                                   clocksource_32k.mult, clocksource_32k.shift);
+
+        timespec_add_ns(tsp, nsecs);
+        *ts = *tsp;
+}
+
 static int __init omap_init_clocksource_32k(void)
 {
         static char err[] __initdata = KERN_ERR
diff --git a/arch/arm/plat-omap/dma.c b/arch/arm/plat-omap/dma.c
index 09d82b3c66ce..728c64204184 100644
--- a/arch/arm/plat-omap/dma.c
+++ b/arch/arm/plat-omap/dma.c
@@ -1183,7 +1183,7 @@ void omap_dma_unlink_lch(int lch_head, int lch_queue)
         }
 
         if ((dma_chan[lch_head].flags & OMAP_DMA_ACTIVE) ||
-            (dma_chan[lch_head].flags & OMAP_DMA_ACTIVE)) {
+            (dma_chan[lch_queue].flags & OMAP_DMA_ACTIVE)) {
                 printk(KERN_ERR "omap_dma: You need to stop the DMA channels "
                        "before unlinking\n");
                 dump_stack();
diff --git a/arch/arm/plat-omap/dmtimer.c b/arch/arm/plat-omap/dmtimer.c
index 64f407ee0f4e..08ccf8922520 100644
--- a/arch/arm/plat-omap/dmtimer.c
+++ b/arch/arm/plat-omap/dmtimer.c
@@ -551,6 +551,19 @@ void omap_dm_timer_stop(struct omap_dm_timer *timer)
         if (l & OMAP_TIMER_CTRL_ST) {
                 l &= ~0x1;
                 omap_dm_timer_write_reg(timer, OMAP_TIMER_CTRL_REG, l);
+#if defined(CONFIG_ARCH_OMAP2) || defined(CONFIG_ARCH_OMAP3) || \
+                        defined(CONFIG_ARCH_OMAP4)
+                /* Readback to make sure write has completed */
+                omap_dm_timer_read_reg(timer, OMAP_TIMER_CTRL_REG);
+                 /*
+                  * Wait for functional clock period x 3.5 to make sure that
+                  * timer is stopped
+                  */
+                udelay(3500000 / clk_get_rate(timer->fclk) + 1);
+                /* Ack possibly pending interrupt */
+                omap_dm_timer_write_reg(timer, OMAP_TIMER_STAT_REG,
+                                OMAP_TIMER_INT_OVERFLOW);
+#endif
         }
 }
 EXPORT_SYMBOL_GPL(omap_dm_timer_stop);
diff --git a/arch/arm/plat-omap/include/plat/cpu.h b/arch/arm/plat-omap/include/plat/cpu.h
index 9a028bdebb06..a162f585b1e3 100644
--- a/arch/arm/plat-omap/include/plat/cpu.h
+++ b/arch/arm/plat-omap/include/plat/cpu.h
@@ -434,6 +434,7 @@ IS_OMAP_TYPE(3517, 0x3517)
 #define OMAP3430_REV_ES2_1      0x34302034
 #define OMAP3430_REV_ES3_0      0x34303034
 #define OMAP3430_REV_ES3_1      0x34304034
+#define OMAP3430_REV_ES3_1_2    0x34305034
 
 #define OMAP3630_REV_ES1_0      0x36300034
 
diff --git a/arch/arm/plat-omap/include/plat/irqs.h b/arch/arm/plat-omap/include/plat/irqs.h
index 97d6c50c3dcb..c0ab7c80f72e 100644
--- a/arch/arm/plat-omap/include/plat/irqs.h
+++ b/arch/arm/plat-omap/include/plat/irqs.h
@@ -499,6 +499,9 @@ extern void omap_init_irq(void);
 extern int omap_irq_pending(void);
 void omap_intc_save_context(void);
 void omap_intc_restore_context(void);
+void omap3_intc_suspend(void);
+void omap3_intc_prepare_idle(void);
+void omap3_intc_resume_idle(void);
 #endif
 
 #include <mach/hardware.h>
diff --git a/arch/arm/plat-omap/include/plat/omap_hwmod.h b/arch/arm/plat-omap/include/plat/omap_hwmod.h
index 007935a921ea..33933256a226 100644
--- a/arch/arm/plat-omap/include/plat/omap_hwmod.h
+++ b/arch/arm/plat-omap/include/plat/omap_hwmod.h
@@ -227,6 +227,7 @@ struct omap_hwmod_ocp_if {
 #define SYSC_HAS_SIDLEMODE      (1 << 5)
 #define SYSC_HAS_MIDLEMODE      (1 << 6)
 #define SYSS_MISSING            (1 << 7)
+#define SYSC_NO_CACHE           (1 << 8)  /* XXX SW flag, belongs elsewhere */
 
 /* omap_hwmod_sysconfig.clockact flags */
 #define CLOCKACT_TEST_BOTH      0x0