tegra186: pm: remove support to set suspend modes from debugfs

This patch removes the support to set system suspend modes - SC2, SC4, SC7
using the debugfs interface, as we only support SC7.

Change-Id: Ie6585954ed31ce56b5b0ac1c5e5f02524ab71895
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
Reviewed-on: http://git-master/r/1231496
GVS: Gerrit_Virtual_Submit
Reviewed-by: Krishna Sitaraman <ksitaraman@nvidia.com>

1 files changed, 0 insertions, 47 deletions

diff --git a/drivers/platform/tegra/pm-tegra186.c b/drivers/platform/tegra/pm-tegra186.c
index ec2043ed3..a68e6bc51 100644
--- a/drivers/platform/tegra/pm-tegra186.c
+++ b/drivers/platform/tegra/pm-tegra186.c
@@ -22,15 +22,10 @@
 #include <linux/pm.h>
 
 static struct dentry *debugfs_dir;
-static u32 suspend_state;
 static u32 shutdown_state;
 
 #define SMC_PM_FUNC     0x82FFFE00
 #define SMC_SET_SHUTDOWN_MODE 0x1
-#define SMC_SET_SUSPEND_MODE 0x2
-#define SYSTEM_SUSPEND_STATE_SC2 2
-#define SYSTEM_SUSPEND_STATE_SC4 4
-#define SYSTEM_SUSPEND_STATE_SC7 7
 #define SYSTEM_SHUTDOWN_STATE_FULL_POWER_OFF 0
 #define SYSTEM_SHUTDOWN_STATE_SC8 8
 #define NR_SMC_REGS     6
@@ -72,20 +67,6 @@ static noinline notrace int __send_smc(u8 func, struct pm_regs *regs)
 })
 
 /**
- * Specify state for SYSTEM_SUSPEND
- *
- * @suspend_state:      Specific suspend state to set
- *
- */
-static int tegra_set_suspend_mode(u32 suspend_state)
-{
-        struct pm_regs regs;
-        regs.args[0] = suspend_state;
-        return send_smc(SMC_SET_SUSPEND_MODE, &regs);
-}
-EXPORT_SYMBOL(tegra_set_suspend_mode);
-
-/**
  * Specify state for SYSTEM_SHUTDOWN
  *
  * @shutdown_state:     Specific shutdown state to set
@@ -112,28 +93,6 @@ static int __init tegra186_pm_init(void)
 }
 core_initcall(tegra186_pm_init);
 
-static int suspend_state_get(void *data, u64 *val)
-{
-        *val = suspend_state;
-        return 0;
-}
-
-static int suspend_state_set(void *data, u64 val)
-{
-        int ret;
-        if ((val >= SYSTEM_SUSPEND_STATE_SC2 && val <= SYSTEM_SUSPEND_STATE_SC4)
-                                        || val == SYSTEM_SUSPEND_STATE_SC7) {
-                suspend_state = val;
-                ret = tegra_set_suspend_mode(suspend_state);
-        }
-        else {
-                printk("Invalid Suspend State\n");
-                ret = -1;
-        }
-
-        return ret;
-}
-
 static int shutdown_state_get(void *data, u64 *val)
 {
         *val = shutdown_state;
@@ -156,7 +115,6 @@ static int shutdown_state_set(void *data, u64 val)
         return ret;
 }
 
-DEFINE_SIMPLE_ATTRIBUTE(suspend_state_fops, suspend_state_get, suspend_state_set, "%llu\n");
 DEFINE_SIMPLE_ATTRIBUTE(shutdown_state_fops, shutdown_state_get, shutdown_state_set, "%llu\n");
 
 static int __init tegra18_suspend_debugfs_init(void)
@@ -167,11 +125,6 @@ static int __init tegra18_suspend_debugfs_init(void)
         if (!system_state_debugfs)
                 goto err_out;
 
-        dfs_file = debugfs_create_file("suspend", 0644,
-                                        system_state_debugfs, NULL, &suspend_state_fops);
-        if (!dfs_file)
-                goto err_out;
-
         dfs_file = debugfs_create_file("shutdown", 0644,
                                         system_state_debugfs, NULL, &shutdown_state_fops);
         if (!dfs_file)