diff --git a/drivers/firmware/rockchip_sip.c b/drivers/firmware/rockchip_sip.c
index b94967b1e365..760f4c3dbeb2 100644
--- a/drivers/firmware/rockchip_sip.c
+++ b/drivers/firmware/rockchip_sip.c
@@ -594,6 +594,16 @@ int sip_wdt_config(u32 sub_func, u32 arg1, u32 arg2, u32 arg3)
 }
 EXPORT_SYMBOL_GPL(sip_wdt_config);
 
+int sip_hdcpkey_init(u32 hdcp_id)
+{
+	struct arm_smccc_res res;
+
+	res = __invoke_sip_fn_smc(TRUSTED_OS_HDCPKEY_INIT, hdcp_id, 0, 0);
+
+	return res.a0;
+}
+EXPORT_SYMBOL_GPL(sip_hdcpkey_init);
+
 /******************************************************************************/
 #ifdef CONFIG_ARM
 static __init int sip_firmware_init(void)
diff --git a/include/linux/rockchip/rockchip_sip.h b/include/linux/rockchip/rockchip_sip.h
index b9572da69053..7e2e5943a1a3 100644
--- a/include/linux/rockchip/rockchip_sip.h
+++ b/include/linux/rockchip/rockchip_sip.h
@@ -56,6 +56,8 @@
 #define SIP_HDCP_CONFIG			0x82000025
 #define SIP_WDT_CFG			0x82000026
 
+#define TRUSTED_OS_HDCPKEY_INIT		0xB7000003
+
 /* Rockchip Sip version */
 #define SIP_IMPLEMENT_V1                (1)
 #define SIP_IMPLEMENT_V2                (2)
@@ -233,6 +235,7 @@ int sip_fiq_debugger_is_enabled(void);
 int sip_fiq_debugger_sdei_get_event_id(u32 *fiq, u32 *sw_cpu, u32 *flag);
 int sip_fiq_control(u32 sub_func, u32 irq, unsigned long data);
 int sip_wdt_config(u32 sub_func, u32 arg1, u32 arg2, u32 arg3);
+int sip_hdcpkey_init(u32 hdcp_id);
 #else
 static inline struct arm_smccc_res sip_smc_get_atf_version(void)
 {
@@ -365,6 +368,11 @@ static inline int sip_wdt_config(u32 sub_func,
 {
 	return 0;
 }
+
+static inline int sip_hdcpkey_init(u32 hdcp_id)
+{
+	return 0;
+}
 #endif
 
 /* 32-bit OP-TEE context, never change order of members! */