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-rw-r--r--arch/arm/mach-omap2/omap_hwmod.h8
1 files changed, 8 insertions, 0 deletions
diff --git a/arch/arm/mach-omap2/omap_hwmod.h b/arch/arm/mach-omap2/omap_hwmod.h
index 512f809a3f4d..35ca6efbec31 100644
--- a/arch/arm/mach-omap2/omap_hwmod.h
+++ b/arch/arm/mach-omap2/omap_hwmod.h
@@ -633,6 +633,7 @@ struct omap_hwmod_link {
* @flags: hwmod flags (documented below)
* @_lock: spinlock serializing operations on this hwmod
* @node: list node for hwmod list (internal use)
+ * @parent_hwmod: (temporary) a pointer to the hierarchical parent of this hwmod
*
* @main_clk refers to this module's "main clock," which for our
* purposes is defined as "the functional clock needed for register
@@ -643,6 +644,12 @@ struct omap_hwmod_link {
* the omap_hwmod code and should not be set during initialization.
*
* @masters and @slaves are now deprecated.
+ *
+ * @parent_hwmod is temporary; there should be no need for it, as this
+ * information should already be expressed in the OCP interface
+ * structures. @parent_hwmod is present as a workaround until we improve
+ * handling for hwmods with multiple parents (e.g., OMAP4+ DSS with
+ * multiple register targets across different interconnects).
*/
struct omap_hwmod {
const char *name;
@@ -680,6 +687,7 @@ struct omap_hwmod {
u8 _int_flags;
u8 _state;
u8 _postsetup_state;
+ struct omap_hwmod *parent_hwmod;
};
struct omap_hwmod *omap_hwmod_lookup(const char *name);