msm: camera: uapi: Add support for precise flash on duration

Precise flash needs the data for time on duration from UMD.
Add the attribute to fill in by UMD. Also, updating the Macro
for the max led trigger from 3 to 2 as there are only two
physical LED channel is available.

CRs-Fixed: 2633194
Change-Id: I641e1ab42e59bc251d33a1e1dd0dff83afb5b7fb
Signed-off-by: Jigarkumar Zala <[email protected]>

include/uapi/camera/media/cam_sensor.h

@@ -1,6 +1,6 @@
 /* SPDX-License-Identifier: GPL-2.0-only WITH Linux-syscall-note */
 /*
- * Copyright (c) 2016-2019, The Linux Foundation. All rights reserved.
+ * Copyright (c) 2016-2020, The Linux Foundation. All rights reserved.
  */
 
 #ifndef __UAPI_CAM_SENSOR_H__
@@ -11,7 +11,7 @@
 #include <media/cam_defs.h>
 
 #define CAM_SENSOR_PROBE_CMD   (CAM_COMMON_OPCODE_MAX + 1)
-#define CAM_FLASH_MAX_LED_TRIGGERS 3
+#define CAM_FLASH_MAX_LED_TRIGGERS 2
 #define MAX_OIS_NAME_SIZE 32
 #define CAM_CSIPHY_SECURE_MODE_ENABLED 1
 /**
@@ -434,13 +434,14 @@ struct cam_flash_set_rer {
 /**
  * struct cam_flash_set_on_off : led turn on/off command buffer
  *
- * @count              :   Number of Flash leds
- * @opcode             :   command buffer opcodes
- *			CAM_FLASH_FIRE_LOW
- *			CAM_FLASH_FIRE_HIGH
- *			CAM_FLASH_OFF
- * @cmd_type           :   command buffer operation type
- * @led_current_ma     :   flash led current in ma
+ * @count                  : Number of Flash leds
+ * @opcode                 : Command buffer opcodes
+ *			     CAM_FLASH_FIRE_LOW
+ *			     CAM_FLASH_FIRE_HIGH
+ *			     CAM_FLASH_OFF
+ * @cmd_type               : Command buffer operation type
+ * @led_current_ma         : Flash led current in ma
+ * @time_on_duration_ms    : Flash time on duration in ns
  *
  */
 struct cam_flash_set_on_off {
@@ -449,6 +450,7 @@ struct cam_flash_set_on_off {
 	uint8_t     cmd_type;
 	uint16_t    reserved;
 	uint32_t    led_current_ma[CAM_FLASH_MAX_LED_TRIGGERS];
+	uint64_t    time_on_duration_ns;
 } __attribute__((packed));
 
 /**