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authorTakashi Iwai <tiwai@suse.de>2012-04-07 12:28:00 +0200
committerTakashi Iwai <tiwai@suse.de>2012-04-07 12:28:00 +0200
commitc38f62b08d800104fa9b0e9d6e9141459986c06d (patch)
tree1d04d768c8aa0c1a544d1f068317c7beb0101be2 /arch/arm/mach-gemini/idle.c
parentALSA: hda - clean up CX20549 test mixer setup (diff)
parentASoC: tegra: fix i2s compilation when !CONFIG_DEBUG_FS (diff)
downloadlinux-dev-c38f62b08d800104fa9b0e9d6e9141459986c06d.tar.xz
linux-dev-c38f62b08d800104fa9b0e9d6e9141459986c06d.zip
Merge tag 'asoc-3.4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus
ASoC: fixes for 3.4 A bunch of driver-specific fixes and one generic fix for the new support for platform DAPM contexts - we were picking the wrong default for the idle_bias_off setting which was meaning we weren't actually achieving any useful runtime PM on platform devices.
Diffstat (limited to 'arch/arm/mach-gemini/idle.c')
-rw-r--r--arch/arm/mach-gemini/idle.c29
1 files changed, 29 insertions, 0 deletions
diff --git a/arch/arm/mach-gemini/idle.c b/arch/arm/mach-gemini/idle.c
new file mode 100644
index 000000000000..92bbd6bb600a
--- /dev/null
+++ b/arch/arm/mach-gemini/idle.c
@@ -0,0 +1,29 @@
+/*
+ * arch/arm/mach-gemini/idle.c
+ */
+
+#include <linux/init.h>
+#include <asm/system.h>
+#include <asm/proc-fns.h>
+
+static void gemini_idle(void)
+{
+ /*
+ * Because of broken hardware we have to enable interrupts or the CPU
+ * will never wakeup... Acctualy it is not very good to enable
+ * interrupts first since scheduler can miss a tick, but there is
+ * no other way around this. Platforms that needs it for power saving
+ * should call enable_hlt() in init code, since by default it is
+ * disabled.
+ */
+ local_irq_enable();
+ cpu_do_idle();
+}
+
+static int __init gemini_idle_init(void)
+{
+ arm_pm_idle = gemini_idle;
+ return 0;
+}
+
+arch_initcall(gemini_idle_init);