OMAP3: pm: introduce errata handling
Introduce errata handling for OMAP3. This patch introduces
errata variable and stub for initialization which will be
filled up by follow-on patches.
Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
diff --git a/arch/arm/mach-omap2/pm.h b/arch/arm/mach-omap2/pm.h
index 0d75bfd..0348fd7 100644
--- a/arch/arm/mach-omap2/pm.h
+++ b/arch/arm/mach-omap2/pm.h
@@ -85,4 +85,11 @@
extern unsigned int omap24xx_cpu_suspend_sz;
extern unsigned int omap34xx_cpu_suspend_sz;
+#if defined(CONFIG_PM) && defined(CONFIG_ARCH_OMAP3)
+extern u16 pm34xx_errata;
+#define IS_PM34XX_ERRATUM(id) (pm34xx_errata & (id))
+#else
+#define IS_PM34XX_ERRATUM(id) 0
+#endif /* defined(CONFIG_PM) && defined(CONFIG_ARCH_OMAP3) */
+
#endif
diff --git a/arch/arm/mach-omap2/pm34xx.c b/arch/arm/mach-omap2/pm34xx.c
index 5bf344a..288bee3 100644
--- a/arch/arm/mach-omap2/pm34xx.c
+++ b/arch/arm/mach-omap2/pm34xx.c
@@ -68,6 +68,9 @@
#define OMAP343X_TABLE_VALUE_OFFSET 0xc0
#define OMAP343X_CONTROL_REG_VALUE_OFFSET 0xc8
+/* pm34xx errata defined in pm.h */
+u16 pm34xx_errata;
+
struct power_state {
struct powerdomain *pwrdm;
u32 next_state;
@@ -991,6 +994,10 @@
save_secure_ram_context_sz);
}
+static void __init pm_errata_configure(void)
+{
+}
+
static int __init omap3_pm_init(void)
{
struct power_state *pwrst, *tmp;
@@ -1000,6 +1007,8 @@
if (!cpu_is_omap34xx())
return -ENODEV;
+ pm_errata_configure();
+
printk(KERN_ERR "Power Management for TI OMAP3.\n");
/* XXX prcm_setup_regs needs to be before enabling hw
