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tee: add tee load dynamic control

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PD#159071:  tee load dynamic control using disable_flag

using disable flag to disable tee load 

Change-Id: I9c138e3830412ee04dcd82812b1a00cbed1ab940
Signed-off-by: Yvonne Chen <yvonne.chen@amlogic.com>
This commit is contained in:
Yvonne Chen
2018-01-18 16:34:30 +08:00
committed by Jianxin Pan
parent 6678c94da3
commit a1e4958ced
1 changed files with 5 additions and 2 deletions
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7
drivers/amlogic/tee/tee.c
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@@ -29,7 +29,7 @@
#define TEE_MSG_UID_1 0xe7f811e3
#define TEE_MSG_UID_2 0xaf630002
#define TEE_MSG_UID_3 0xa5d5c51b
static int disable_flag;
#define TEE_SMC_FUNCID_CALLS_REVISION 0xFF03
#define TEE_SMC_CALLS_REVISION \
ARM_SMCCC_CALL_VAL(ARM_SMCCC_FAST_CALL, ARM_SMCCC_SMC_32, \
@@ -149,7 +149,8 @@ EXPORT_SYMBOL(tee_load_video_fw);
bool tee_enabled(void)
{
struct arm_smccc_res res;
if (disable_flag == 1)
return false;
/*return false;*/ /*disable tee load temporary*/
arm_smccc_smc(TEE_SMC_CALLS_UID, 0, 0, 0, 0, 0, 0, 0, &res);
@@ -190,6 +191,8 @@ static void __exit aml_tee_modexit(void)
{
class_destroy(tee_sys_class);
}
module_param(disable_flag, uint, 0664);
MODULE_PARM_DESC(disable_flag, "\n tee firmload disable_flag flag\n");
module_exit(aml_tee_modexit);