ARM: tegra: add support for powergate skip list

- the idea is to add the power gate ids to a skip list
and expose this list via pg_ops
- the core code checks if current id is in skip list.
if it is then, it skips power gate or ungate operation
of the current id

bug 1249871

Change-Id: I3df270cfe1c853b554086688b485562a211ec2a5
Signed-off-by: Mayuresh Kulkarni <mkulkarni@nvidia.com>
Reviewed-on: http://git-master/r/228373
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>

1 files changed, 3 insertions, 0 deletions

diff --git a/arch/arm/mach-tegra/powergate-priv.h b/arch/arm/mach-tegra/powergate-priv.h
index dd427b07ba1b..faa6ee8305ad 100644
--- a/arch/arm/mach-tegra/powergate-priv.h
+++ b/arch/arm/mach-tegra/powergate-priv.h
@@ -103,7 +103,10 @@ struct powergate_ops {
 	int (*powergate_mc_flush_done)(int id);
 
 	int (*powergate_init_refcount)(void);
+
 	bool (*powergate_check_clamping)(int id);
+
+	bool (*powergate_skip)(int id);
 };
 
 void get_clk_info(struct powergate_partition_info *pg_info);