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-rw-r--r--arch/arm/mach-omap2/omap_hwmod.h9
1 files changed, 9 insertions, 0 deletions
diff --git a/arch/arm/mach-omap2/omap_hwmod.h b/arch/arm/mach-omap2/omap_hwmod.h
index 3ae852a522f9..80c00e706d69 100644
--- a/arch/arm/mach-omap2/omap_hwmod.h
+++ b/arch/arm/mach-omap2/omap_hwmod.h
@@ -451,6 +451,14 @@ struct omap_hwmod_omap4_prcm {
* enabled. This prevents the hwmod code from being able to
* enable and reset the IP block early. XXX Eventually it should
* be possible to query the clock framework for this information.
+ * HWMOD_BLOCK_WFI: Some OMAP peripherals apparently don't work
+ * correctly if the MPU is allowed to go idle while the
+ * peripherals are active. This is apparently true for the I2C on
+ * OMAP2420, and also the EMAC on AM3517/3505. It's unlikely that
+ * this is really true -- we're probably not configuring something
+ * correctly, or this is being abused to deal with some PM latency
+ * issues -- but we're currently suffering from a shortage of
+ * folks who are able to track these issues down properly.
*/
#define HWMOD_SWSUP_SIDLE (1 << 0)
#define HWMOD_SWSUP_MSTANDBY (1 << 1)
@@ -462,6 +470,7 @@ struct omap_hwmod_omap4_prcm {
#define HWMOD_CONTROL_OPT_CLKS_IN_RESET (1 << 7)
#define HWMOD_16BIT_REG (1 << 8)
#define HWMOD_EXT_OPT_MAIN_CLK (1 << 9)
+#define HWMOD_BLOCK_WFI (1 << 10)
/*
* omap_hwmod._int_flags definitions