hardware/nvidia-spiri/platform/t18x/common/kernel-dts/t18x-common-platforms/tegra186-tx2-spiri-camera.dtsi

@@ -98,25 +98,25 @@ i2c8 = "/i2c@31e0000";
 				inherent_gain = "1";
 				pix_clk_hz = "74250000";
 
-        gain_factor = "3";
-        framerate_factor = "1000000";
-        exposure_factor = "1000000"; //"1000000";
-        min_gain_val = "100";
-        max_gain_val = "762";
-        step_gain_val = "1";
-				default_gain = "100";
+			        gain_factor = "3125";
+				framerate_factor = "1000000";
+				exposure_factor = "1000000";
+				min_gain_val = "100000";
+        max_gain_val = "796000";
+				step_gain_val = "1";
+				default_gain = "100000";
 				min_hdr_ratio = "1";
 				max_hdr_ratio = "1";
 
 				min_framerate = "2000000";
 				max_framerate = "60000000";
 				step_framerate = "1";
-        default_framerate = "60000000"; // 60.0 fps
+				default_framerate = "60000000"; // 60.0 fps
 
-        min_exp_time = "23000"; // us
-        max_exp_time = "1000000"; // us
+				min_exp_time = "500"; // us
+				max_exp_time = "16000"; // us
 				step_exp_time = "1";
-        default_exp_time = "40000"; // us
+        default_exp_time = "12000"; // us
 			};
 			ports {  
 				#address-cells = <0x1>;
@@ -185,25 +185,25 @@ i2c8 = "/i2c@31e0000";
 				inherent_gain = "1";
 				pix_clk_hz = "74250000";
 
-        gain_factor = "3";
-        framerate_factor = "1000000";
-        exposure_factor = "1000000";
-        min_gain_val = "100";
-        max_gain_val = "762";
-        step_gain_val = "1";
-				default_gain = "100";
+			        gain_factor = "3125";
+				framerate_factor = "1000000";
+				exposure_factor = "1000000";
+				min_gain_val = "100000";
+        max_gain_val = "796000";
+				step_gain_val = "1";
+			        default_gain = "100000";
 				min_hdr_ratio = "1";
 				max_hdr_ratio = "1";
 
 				min_framerate = "2000000";
 				max_framerate = "60000000";
 				step_framerate = "1";
-        default_framerate = "60000000"; // 60.0 fps
+				default_framerate = "60000000"; // 60.0 fps
 
-        min_exp_time = "23000"; // us
-        max_exp_time = "1000000"; // us
+				min_exp_time = "500"; // us
+				max_exp_time = "16000"; // us
 				step_exp_time = "1";
-        default_exp_time = "40000"; // us
+              default_exp_time = "12000"; // us
 			};
 			ports {  
 				#address-cells = <0x1>;

kernel/nvidia-spiri/drivers/media/i2c/mt9m021.c

@@ -135,8 +135,8 @@
 #define MT9M021_ANALOG_GAIN_SHIFT       4
 #define MT9M021_ANALOG_GAIN_MASK        0x0030
 
-#define MT9M021_GLOBAL_GAIN_MIN         100
-#define MT9M021_GLOBAL_GAIN_MAX         762
+#define MT9M021_GLOBAL_GAIN_MIN         100000
+#define MT9M021_GLOBAL_GAIN_MAX         796000
 #define MT9M021_GLOBAL_GAIN_DEF         100
 
 #define MT9M021_COARSE_INT_TIME_MIN     0x0001
@@ -420,15 +420,15 @@ static int mt9m021_set_gain(struct tegracam_device *tc_dev, s64 val)
    *  GAIN: VAL / STEPS;
    *  STEPS: 1/32
    *
-   *  SCALE FACTOR = 32
+   *  SCALE FACTOR = 100.000
    *
-   *  min_gain_val = 100
-   *  max_gain_val = 762
-   *  gain_factor = 3
+   *  min_gain_val = 100.000
+   *  max_gain_val = 797.000
+   *  gain_factor = 3125
    *
    *  gain maps to range 32 - 255
    */
-  gain = val / 3;
+  gain = val / 3125;
 
   /* Update analog gain multiplier */
   err = mt9m021_read_reg16(s_data, MT9M021_DIGITAL_TEST, &reg16);
@@ -527,12 +527,12 @@ static int mt9m021_set_coarse_time(struct mt9m021 *priv, s64 val)
 
 static int mt9m021_set_exposure(struct tegracam_device *tc_dev, s64 val)
 {
-  struct camera_common_data *s_data = tc_dev->s_data;
+	struct camera_common_data *s_data = tc_dev->s_data;
 	struct mt9m021 *priv = (struct mt9m021 *)tc_dev->priv;
 	struct device *dev = tc_dev->dev;
-  const struct sensor_mode_properties *mode =
+	const struct sensor_mode_properties *mode =
       &s_data->sensor_props.sensor_modes[s_data->mode];
-  u64 coarse_time;
+	u64 coarse_time;
 	int err = 0;
 
   dev_dbg(dev, "Setting Exposure Time to : %lld", val);