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authorSimone Willett <swillett@nvidia.com>2012-02-15 14:22:37 -0800
committerLokesh Pathak <lpathak@nvidia.com>2012-02-16 05:07:10 -0800
commitae1f9efe299b2f24680b04e429c76dec3240b60d (patch)
tree3340a6e656ec9c6e920b534fb6a4413fc8408afd /include
parent681c2688fc5a7001a2c0e568790e04be67552efd (diff)
Revert "video: tegra: host: use runtime pm for clock management"
This reverts commit 961c60fe7213d92793d6072abc16f58721a33fed Change-Id: I8ef0fbaee30e94c78b8df609f729953fee6d1583 Reviewed-on: http://git-master/r/84135 Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com> Reviewed-by: Mayuresh Kulkarni <mkulkarni@nvidia.com> Tested-by: Lokesh Pathak <lpathak@nvidia.com> Reviewed-by: Lokesh Pathak <lpathak@nvidia.com>
Diffstat (limited to 'include')
-rw-r--r--include/linux/nvhost.h10
1 files changed, 9 insertions, 1 deletions
diff --git a/include/linux/nvhost.h b/include/linux/nvhost.h
index 9002620a834a..55b75d048791 100644
--- a/include/linux/nvhost.h
+++ b/include/linux/nvhost.h
@@ -38,6 +38,13 @@ struct nvhost_clock {
long default_rate;
};
+enum nvhost_device_powerstate_t {
+ NVHOST_POWER_STATE_DEINIT,
+ NVHOST_POWER_STATE_RUNNING,
+ NVHOST_POWER_STATE_CLOCKGATED,
+ NVHOST_POWER_STATE_POWERGATED
+};
+
struct nvhost_device {
const char *name; /* Device name */
struct device dev; /* Linux device struct */
@@ -67,7 +74,8 @@ struct nvhost_device {
int num_clks; /* Number of clocks opened for dev */
struct clk *clk[NVHOST_MODULE_MAX_CLOCKS];
struct mutex lock; /* Power management lock */
- bool powered; /* Current power state */
+ int powerstate; /* Current power state */
+ int refcount; /* Number of tasks active */
wait_queue_head_t idle_wq; /* Work queue for idle */
struct list_head client_list; /* List of clients and rate requests */