[PATCH 11/13] misc: ele_api: Add Voltage change start and finish APIs

[Peng Fan (OSS)]

From: Ye Li <ye.li at nxp.com>

On GDET enabled part, need to call voltage change start and finish
APIs when adjust the voltage more than 100mv. Otherwise GDET will be
triggered and system is reset

Reviewed-by: Peng Fan <peng.fan at nxp.com>
Signed-off-by: Ye Li <ye.li at nxp.com>
Signed-off-by: Peng Fan <peng.fan at nxp.com>
---
 arch/arm/include/asm/mach-imx/ele_api.h |  4 +++
 drivers/misc/imx_ele/ele_api.c          | 50 +++++++++++++++++++++++++++++++++
 2 files changed, 54 insertions(+)

diff --git a/arch/arm/include/asm/mach-imx/ele_api.h b/arch/arm/include/asm/mach-imx/ele_api.h
index 64b243dcaaa..4e1afc42bd8 100644
--- a/arch/arm/include/asm/mach-imx/ele_api.h
+++ b/arch/arm/include/asm/mach-imx/ele_api.h
@@ -14,6 +14,8 @@
 #define ELE_PING_REQ (0x01)
 #define ELE_FW_AUTH_REQ (0x02)
 #define ELE_RESTART_RST_TIMER_REQ (0x04)
+#define ELE_VOLT_CHANGE_START_REQ (0x12)
+#define ELE_VOLT_CHANGE_FINISH_REQ (0x13)
 #define ELE_DUMP_DEBUG_BUFFER_REQ (0x21)
 #define ELE_OEM_CNTN_AUTH_REQ (0x87)
 #define ELE_VERIFY_IMAGE_REQ (0x88)
@@ -160,4 +162,6 @@ int ele_return_lifecycle_update(ulong signed_msg_blk, u32 *response);
 int ele_start_rng(void);
 int ele_write_shadow_fuse(u32 fuse_id, u32 fuse_val, u32 *response);
 int ele_read_shadow_fuse(u32 fuse_id, u32 *fuse_val, u32 *response);
+int ele_volt_change_start_req(void);
+int ele_volt_change_finish_req(void);
 #endif
diff --git a/drivers/misc/imx_ele/ele_api.c b/drivers/misc/imx_ele/ele_api.c
index 661f70cf870..e7aee0fcef1 100644
--- a/drivers/misc/imx_ele/ele_api.c
+++ b/drivers/misc/imx_ele/ele_api.c
@@ -794,3 +794,53 @@ int ele_generate_dek_blob(u32 key_id, u32 src_paddr, u32 dst_paddr, u32 max_outp
 
 	return ret;
 }
+
+int ele_volt_change_start_req(void)
+{
+	struct udevice *dev = gd->arch.ele_dev;
+	int size = sizeof(struct ele_msg);
+	struct ele_msg msg = {};
+	int ret;
+
+	if (!dev) {
+		printf("ele dev is not initialized\n");
+		return -ENODEV;
+	}
+
+	msg.version = ELE_VERSION;
+	msg.tag = ELE_CMD_TAG;
+	msg.size = 1;
+	msg.command = ELE_VOLT_CHANGE_START_REQ;
+
+	ret = misc_call(dev, false, &msg, size, &msg, size);
+	if (ret)
+		printf("Error: %s: ret %d, response 0x%x\n",
+		       __func__, ret, msg.data[0]);
+
+	return ret;
+}
+
+int ele_volt_change_finish_req(void)
+{
+	struct udevice *dev = gd->arch.ele_dev;
+	int size = sizeof(struct ele_msg);
+	struct ele_msg msg = {};
+	int ret;
+
+	if (!dev) {
+		printf("ele dev is not initialized\n");
+		return -ENODEV;
+	}
+
+	msg.version = ELE_VERSION;
+	msg.tag = ELE_CMD_TAG;
+	msg.size = 1;
+	msg.command = ELE_VOLT_CHANGE_FINISH_REQ;
+
+	ret = misc_call(dev, false, &msg, size, &msg, size);
+	if (ret)
+		printf("Error: %s: ret %d, response 0x%x\n",
+		       __func__, ret, msg.data[0]);
+
+	return ret;
+}

-- 
2.51.0