tegra: gpu: disable touch boost for gpu

Gpu boosting with input events is causing more gpu power consumption
than required. To avoid this, touch boot for gpu is disabled by not
registering gpu device for cfboost frame work. Current rail gate
entry/exit latencies are fast enough to give smooth user experience.

Bug 200087243

Change-Id: I18673d9c95a44ce9bee87e860b4edb29212dc766
Signed-off-by: Seshendra Gadagottu <sgadagottu@nvidia.com>
Reviewed-on: http://git-master/r/721989
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>

1 files changed, 0 insertions, 13 deletions

diff --git a/drivers/gpu/nvgpu/gk20a/gk20a.c b/drivers/gpu/nvgpu/gk20a/gk20a.c
index 27fce8e0..a6f56763 100644
--- a/drivers/gpu/nvgpu/gk20a/gk20a.c
+++ b/drivers/gpu/nvgpu/gk20a/gk20a.c
@@ -41,7 +41,6 @@
 #include <linux/kthread.h>
 
 #include <linux/sched.h>
-#include <linux/input-cfboost.h>
 
 #ifdef CONFIG_TEGRA_GK20A
 #include <linux/nvhost.h>
@@ -884,13 +883,6 @@ static int gk20a_pm_finalize_poweron(struct device *dev)
         enable_irq(g->irq_stall);
         enable_irq(g->irq_nonstall);
 
-#ifdef CONFIG_INPUT_CFBOOST
-        if (!g->boost_added) {
-                gk20a_dbg_info("add touch boost");
-                cfb_add_device(dev);
-                g->boost_added = true;
-        }
-#endif
 done:
         return err;
 }
@@ -1527,11 +1519,6 @@ static int __exit gk20a_remove(struct platform_device *dev)
         if (platform->has_cde)
                 gk20a_cde_destroy(g);
 
-#ifdef CONFIG_INPUT_CFBOOST
-        if (g->boost_added)
-                cfb_remove_device(&dev->dev);
-#endif
-
         if (IS_ENABLED(CONFIG_GK20A_DEVFREQ))
                 gk20a_scale_exit(dev);