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authorTakashi Iwai <tiwai@suse.de>2010-02-17 14:24:46 +0100
committerTakashi Iwai <tiwai@suse.de>2010-02-17 14:24:46 +0100
commit7fb3a069bc5d3577409c2ae89f89cd264ff85816 (patch)
tree7fe3ba3b95faeecb01e4feafb9288ef4b523c6b3 /arch/arm/plat-omap/dmtimer.c
parent291186e049d7f8178ad31d43c38a53889f25d79e (diff)
parent9d3415a8cc76ff65c6602a121ac318432c5cd7ba (diff)
downloadlinux-7fb3a069bc5d3577409c2ae89f89cd264ff85816.tar.bz2
Merge branch 'fix/misc' into topic/misc
Conflicts: sound/pci/hda/patch_realtek.c
Diffstat (limited to 'arch/arm/plat-omap/dmtimer.c')
-rw-r--r--arch/arm/plat-omap/dmtimer.c13
1 files changed, 13 insertions, 0 deletions
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);