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authorLinus Torvalds <torvalds@linux-foundation.org>2011-01-06 19:13:58 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2011-01-06 19:13:58 -0800
commit01539ba2a706ab7d35fc0667dff919ade7f87d63 (patch)
tree5a4bd0cf78007d06690fe4ac06bbd49a5a70bc47 /arch/arm/plat-omap/omap-pm-noop.c
parent9e9bc9736756f25d6c47b4eba0ebf25b20a6f153 (diff)
parentdc69d1af9e8d9cbbabff88bb35a6782187a22229 (diff)
Merge branch 'omap-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6
* 'omap-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6: (243 commits) omap2: Make OMAP2PLUS select OMAP_DM_TIMER OMAP4: hwmod data: Fix alignment and end of line in structurefields OMAP4: hwmod data: Move the DMA structures OMAP4: hwmod data: Move the smartreflex structures OMAP4: hwmod data: Fix missing SIDLE_SMART_WKUP in smartreflexsysc arm: omap: tusb6010: add name for MUSB IRQ arm: omap: craneboard: Add USB EHCI support omap2+: Initialize serial port for dynamic remuxing for n8x0 omap2+: Add struct omap_board_data and use it for platform level serial init omap2+: Allow hwmod state changes to mux pads based on the state changes omap2+: Add support for hwmod specific muxing of devices omap2+: Add omap_mux_get_by_name OMAP2: PM: fix compile error when !CONFIG_SUSPEND MAINTAINERS: OMAP: hwmod: update hwmod code, data maintainership OMAP4: Smartreflex framework extensions OMAP4: hwmod: Add inital data for smartreflex modules. OMAP4: PM: Program correct init voltages for scalable VDDs OMAP4: Adding voltage driver support OMAP4: Register voltage PMIC parameters with the voltage layer OMAP3: PM: Program correct init voltages for VDD1 and VDD2 ... Fix up trivial conflict in arch/arm/plat-omap/Kconfig
Diffstat (limited to 'arch/arm/plat-omap/omap-pm-noop.c')
-rw-r--r--arch/arm/plat-omap/omap-pm-noop.c78
1 files changed, 55 insertions, 23 deletions
diff --git a/arch/arm/plat-omap/omap-pm-noop.c b/arch/arm/plat-omap/omap-pm-noop.c
index e129ce80c53b..b0471bb2d47d 100644
--- a/arch/arm/plat-omap/omap-pm-noop.c
+++ b/arch/arm/plat-omap/omap-pm-noop.c
@@ -20,15 +20,14 @@
#include <linux/init.h>
#include <linux/cpufreq.h>
#include <linux/device.h>
+#include <linux/platform_device.h>
/* Interface documentation is in mach/omap-pm.h */
#include <plat/omap-pm.h>
+#include <plat/omap_device.h>
-#include <plat/powerdomain.h>
-
-struct omap_opp *dsp_opps;
-struct omap_opp *mpu_opps;
-struct omap_opp *l3_opps;
+static bool off_mode_enabled;
+static u32 dummy_context_loss_counter;
/*
* Device-driver-originated constraints (via board-*.c files)
@@ -284,37 +283,70 @@ unsigned long omap_pm_cpu_get_freq(void)
return 0;
}
+/**
+ * omap_pm_enable_off_mode - notify OMAP PM that off-mode is enabled
+ *
+ * Intended for use only by OMAP PM core code to notify this layer
+ * that off mode has been enabled.
+ */
+void omap_pm_enable_off_mode(void)
+{
+ off_mode_enabled = true;
+}
+
+/**
+ * omap_pm_disable_off_mode - notify OMAP PM that off-mode is disabled
+ *
+ * Intended for use only by OMAP PM core code to notify this layer
+ * that off mode has been disabled.
+ */
+void omap_pm_disable_off_mode(void)
+{
+ off_mode_enabled = false;
+}
+
/*
* Device context loss tracking
*/
-int omap_pm_get_dev_context_loss_count(struct device *dev)
+#ifdef CONFIG_ARCH_OMAP2PLUS
+
+u32 omap_pm_get_dev_context_loss_count(struct device *dev)
{
- if (!dev) {
- WARN_ON(1);
- return -EINVAL;
- };
+ struct platform_device *pdev = to_platform_device(dev);
+ u32 count;
+
+ if (WARN_ON(!dev))
+ return 0;
+
+ if (dev->parent == &omap_device_parent) {
+ count = omap_device_get_context_loss_count(pdev);
+ } else {
+ WARN_ONCE(off_mode_enabled, "omap_pm: using dummy context loss counter; device %s should be converted to omap_device",
+ dev_name(dev));
+ if (off_mode_enabled)
+ dummy_context_loss_counter++;
+ count = dummy_context_loss_counter;
+ }
- pr_debug("OMAP PM: returning context loss count for dev %s\n",
- dev_name(dev));
+ pr_debug("OMAP PM: context loss count for dev %s = %d\n",
+ dev_name(dev), count);
- /*
- * Map the device to the powerdomain. Return the powerdomain
- * off counter.
- */
+ return count;
+}
- return 0;
+#else
+
+u32 omap_pm_get_dev_context_loss_count(struct device *dev)
+{
+ return dummy_context_loss_counter;
}
+#endif
/* Should be called before clk framework init */
-int __init omap_pm_if_early_init(struct omap_opp *mpu_opp_table,
- struct omap_opp *dsp_opp_table,
- struct omap_opp *l3_opp_table)
+int __init omap_pm_if_early_init(void)
{
- mpu_opps = mpu_opp_table;
- dsp_opps = dsp_opp_table;
- l3_opps = l3_opp_table;
return 0;
}