This contains startup and shutdown times for the oscillator. By default
use MAX_INT. Oscillator setup is used for calculating and setting up
latencies for sleep modes that disable oscillator.
Signed-off-by: Tero Kristo <t-kristo@xxxxxx>
---
arch/arm/mach-omap2/pm.c | 27 +++++++++++++++++++++++++++
arch/arm/mach-omap2/pm.h | 8 ++++++++
2 files changed, 35 insertions(+), 0 deletions(-)
diff --git a/arch/arm/mach-omap2/pm.c b/arch/arm/mach-omap2/pm.c
index d34fc52..b60bae7 100644
--- a/arch/arm/mach-omap2/pm.c
+++ b/arch/arm/mach-omap2/pm.c
@@ -31,6 +31,21 @@ static struct device *iva_dev;
static struct device *l3_dev;
static struct device *dsp_dev;
+/**
+ * struct omap2_oscillator - Describe the board main oscillator latencies
+ * @startup_time: oscillator startup latency
+ * @shutdown_time: oscillator shutdown latency
+ */
+struct omap2_oscillator {
+ u32 startup_time;
+ u32 shutdown_time;
+};
+
+static struct omap2_oscillator oscillator = {
+ .startup_time = ULONG_MAX,
+ .shutdown_time = ULONG_MAX,
+};
+
struct device *omap2_get_mpuss_device(void)
{
WARN_ON_ONCE(!mpu_dev);
@@ -56,6 +71,18 @@ struct device *omap4_get_dsp_device(void)
}
EXPORT_SYMBOL(omap4_get_dsp_device);
+void omap_pm_setup_oscillator(u32 tstart, u32 tshut)
+{
+ oscillator.startup_time = tstart;
+ oscillator.shutdown_time = tshut;
+}
+
+void omap_pm_get_oscillator(u32 *tstart, u32 *tshut)
+{
+ *tstart = oscillator.startup_time;
+ *tshut = oscillator.shutdown_time;
+}
+
/* static int _init_omap_device(struct omap_hwmod *oh, void *user) */
static int _init_omap_device(char *name, struct device **new_dev)
{
diff --git a/arch/arm/mach-omap2/pm.h b/arch/arm/mach-omap2/pm.h
index 4e166ad..3bdb359 100644
--- a/arch/arm/mach-omap2/pm.h
+++ b/arch/arm/mach-omap2/pm.h
@@ -134,4 +134,12 @@ static inline int omap4_twl_init(void)
}
#endif
+#ifdef CONFIG_PM
+extern void omap_pm_setup_oscillator(u32 tstart, u32 tshut);
+extern void omap_pm_get_oscillator(u32 *tstart, u32 *tshut);
+#else
+static inline void omap_pm_setup_oscillator(u32 tstart, u32 tshut) { }
+static inline void omap_pm_get_oscillator(u32 *tstart, u32 *tshut) { }
+#endif
+
#endif
--
1.7.4.1
--
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