ARM: OMAP4: PM: add errata support

Added similar PM errata flag support as omap3 has. This should be used
in similar manner, set the flags during init time, and check the flag
values during runtime.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Kevin Hilman <khilman@ti.com>

diff --git a/arch/arm/mach-omap2/pm.h b/arch/arm/mach-omap2/pm.h
index 67d66131cfa796c9f0724e43a2820a0752e1fa73..f76a0d0f839f9b55f037664ab2b859912b24ef1b 100644 (file)
--- a/arch/arm/mach-omap2/pm.h
+++ b/arch/arm/mach-omap2/pm.h
@@ -102,6 +102,13 @@ extern void enable_omap3630_toggle_l2_on_restore(void);
 static inline void enable_omap3630_toggle_l2_on_restore(void) { }
 #endif         /* defined(CONFIG_PM) && defined(CONFIG_ARCH_OMAP3) */
 
+#if defined(CONFIG_ARCH_OMAP4)
+extern u16 pm44xx_errata;
+#define IS_PM44XX_ERRATUM(id)          (pm44xx_errata & (id))
+#else
+#define IS_PM44XX_ERRATUM(id)          0
+#endif
+
 #ifdef CONFIG_POWER_AVS_OMAP
 extern int omap_devinit_smartreflex(void);
 extern void omap_enable_smartreflex_on_init(void);

diff --git a/arch/arm/mach-omap2/pm44xx.c b/arch/arm/mach-omap2/pm44xx.c
index 04922d1490683d8c0a7d443ea6806a9032535b29..0adbd7d81ce81816fa3808dc05b2a4376dd6eb5f 100644 (file)
--- a/arch/arm/mach-omap2/pm44xx.c
+++ b/arch/arm/mach-omap2/pm44xx.c
@@ -34,6 +34,7 @@ struct power_state {
 };
 
 static LIST_HEAD(pwrst_list);
+u16 pm44xx_errata;
 
 #ifdef CONFIG_SUSPEND
 static int omap4_pm_suspend(void)