Low flashlight brightness bugfix

Low flashlight brightness bugfix

Because the platform side cannot output a PWM wave with 100% duty
 cycle, the brightness of the flashlight is too low. To fix this,
 we manually pull up this pin.

Change-Id: Iaa58f021dcecf86d173332f425ba311d40959127
Reviewed-on: https://gerrit.mot.com/2250288
SME-Granted: SME Approvals Granted
SLTApproved: Slta Waiver
Tested-by: Jira Key
Reviewed-by: Pengfei Qiao <qiaopf1@motorola.com>
Reviewed-by: Zhichao Chen <chenzc2@motorola.com>
Submit-Approved: Jira Key

drivers/cam_sensor_module/cam_flash/cam_flash_core.c

@@ -582,8 +582,16 @@ static int cam_flash_low(
 	}
 
 	cam_res_mgr_gpio_set_value(soc_private->flash_gpio_enable, 0);
+#ifdef CONFIG_DEVON_CAMERA_FLASH
+	cam_res_mgr_gpio_request(soc_info.dev, DEVON_CAMERA_PWM_GPIO, 0, "torch_enable");
+	cam_res_mgr_gpio_set_value(DEVON_CAMERA_PWM_GPIO, 1);
+	usleep_range(5000,6000);
+	cam_res_mgr_gpio_set_value(DEVON_CAMERA_PWM_GPIO, 0);
+	cam_res_mgr_gpio_free(soc_info.dev, DEVON_CAMERA_PWM_GPIO);
+#else
 	pm6125_flash_gpio_select_state(PM6125_FLASH_GPIO_STATE_ACTIVE, CAMERA_SENSOR_FLASH_OP_FIRELOW, FLASH_FIRE_LOW_MAXCURRENT);
 	usleep_range(5000,6000);
+#endif
 	pm6125_flash_gpio_select_state(PM6125_FLASH_GPIO_STATE_ACTIVE, CAMERA_SENSOR_FLASH_OP_FIRELOW, flash_data->led_current_ma[0]);
 #endif
 

drivers/cam_sensor_module/cam_flash/cam_flash_core.h

@@ -6,6 +6,10 @@
 #ifndef _CAM_FLASH_CORE_H_
 #define _CAM_FLASH_CORE_H_
 
+#ifdef CONFIG_DEVON_CAMERA_FLASH
+#define DEVON_CAMERA_PWM_GPIO 1165
+#endif
+
 #include <media/cam_sensor.h>
 #include "cam_flash_dev.h"
 

drivers/cam_sensor_module/cam_flash_pm6125_gpio/pm6125_flash_gpio.h

@@ -20,9 +20,15 @@ enum{
 };
 #endif
 
+#ifdef CONFIG_DEVON_CAMERA_FLASH
+#define PM6125_PWM_PERIOD 50000
+#define FLASH_FIRE_HIGH_MAXCURRENT 1750
+#define FLASH_FIRE_LOW_MAXCURRENT 285
+#else
 #define PM6125_PWM_PERIOD 50000
 #define FLASH_FIRE_HIGH_MAXCURRENT 1200
 #define FLASH_FIRE_LOW_MAXCURRENT 150
+#endif
 
 /*****************************************************************************
  * Function Prototype