arm: tegra: refactor powergate code per-SoC

- split the current power-gate code into common and
SoC specific code
- every SoC now exports a set of ops to the common APIs
- following is the new file structure:
powergate.c - common powergate APIs
powergate-ops-txx.c - t20/t30 specific common implementation
powergate-ops-t1xx.c - t114 specific common implementation.
this will also take care of t148 and t124 (in future)
powergate-t20 - t20 specific structures and ids
powergate-t30 - t30 specific strcutures and ids
powergate-t11x - t11x specific structures and ids
powergate-t14x - t14x specific structures and ids (stub in
this commit. it will be populated in a separate commit
as a part of bug 1190194)
- powergate.c also provides a low level common APIs
for all SoCs
- each SoC now has 2 arrays: 1 for power partition info
and other for mc client list info. amongst these 2 arrays,
mc client list array is static

Bug 1180197

Change-Id: I62b2d894c683fe9a18b82c7f9d87c08ce5b3864f
Signed-off-by: Mayuresh Kulkarni <mkulkarni@nvidia.com>
Reviewed-on: http://git-master/r/145591
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
GVS: Gerrit_Virtual_Submit

1 files changed, 31 insertions, 0 deletions

diff --git a/arch/arm/mach-tegra/powergate-ops-txx.h b/arch/arm/mach-tegra/powergate-ops-txx.h
new file mode 100644
index 000000000000..7acbd06efed4
--- /dev/null
+++ b/arch/arm/mach-tegra/powergate-ops-txx.h
@@ -0,0 +1,31 @@
+/*
+ * Copyright (c) 2012, NVIDIA CORPORATION.  All rights reserved.
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#ifndef __POWERGATE_OPS_TXX_H__
+#define __POWERGATE_OPS_TXX_H__
+
+/* Common APIs for tegra2 and tegra3 SoCs */
+int tegraxx_powergate_partition(int id,
+	struct powergate_partition_info *pg_info);
+
+int tegraxx_unpowergate_partition(int id,
+	struct powergate_partition_info *pg_info);
+
+int tegraxx_powergate_partition_with_clk_off(int id,
+	struct powergate_partition_info *pg_info);
+
+int tegraxx_unpowergate_partition_with_clk_on(int id,
+	struct powergate_partition_info *pg_info);
+
+#endif /* __POWERGATE_OPS_TXX_H__ */