1 files changed, 10 insertions, 18 deletions

diff --git a/drivers/media/video/gspca/pac207.c b/drivers/media/video/gspca/pac207.c
index f20d21b1c7d7..96659433d248 100644
--- a/drivers/media/video/gspca/pac207.c
+++ b/drivers/media/video/gspca/pac207.c
@@ -35,25 +35,17 @@ MODULE_LICENSE("GPL");
 
 #define PAC207_BRIGHTNESS_MIN           0
 #define PAC207_BRIGHTNESS_MAX           255
-#define PAC207_BRIGHTNESS_DEFAULT       4 /* power on default: 4 */
-
-/* An exposure value of 4 also works (3 does not) but then we need to lower
-   the compression balance setting when in 352x288 mode, otherwise the usb
-   bandwidth is not enough and packets get dropped resulting in corrupt
-   frames. The problem with this is that when the compression balance gets
-   lowered below 0x80, the pac207 starts using a different compression
-   algorithm for some lines, these lines get prefixed with a 0x2dd2 prefix
-   and currently we do not know how to decompress these lines, so for now
-   we use a minimum exposure value of 5 */
-#define PAC207_EXPOSURE_MIN             5
+#define PAC207_BRIGHTNESS_DEFAULT       46
+
+#define PAC207_EXPOSURE_MIN             3
 #define PAC207_EXPOSURE_MAX             26
-#define PAC207_EXPOSURE_DEFAULT         5 /* power on default: 3 ?? */
-#define PAC207_EXPOSURE_KNEE            11 /* 4 = 30 fps, 11 = 8, 15 = 6 */
+#define PAC207_EXPOSURE_DEFAULT         5 /* power on default: 3 */
+#define PAC207_EXPOSURE_KNEE            8 /* 4 = 30 fps, 11 = 8, 15 = 6 */
 
 #define PAC207_GAIN_MIN                 0
 #define PAC207_GAIN_MAX                 31
 #define PAC207_GAIN_DEFAULT             9 /* power on default: 9 */
-#define PAC207_GAIN_KNEE                20
+#define PAC207_GAIN_KNEE                31
 
 #define PAC207_AUTOGAIN_DEADZONE        30
 
@@ -166,8 +158,8 @@ static const struct v4l2_pix_format sif_mode[] = {
 };
 
 static const __u8 pac207_sensor_init[][8] = {
-        {0x10, 0x12, 0x0d, 0x12, 0x0c, 0x01, 0x29, 0xf0},
-        {0x00, 0x64, 0x64, 0x64, 0x04, 0x10, 0xf0, 0x30},
+        {0x10, 0x12, 0x0d, 0x12, 0x0c, 0x01, 0x29, 0x84},
+        {0x49, 0x64, 0x64, 0x64, 0x04, 0x10, 0xf0, 0x30},
         {0x00, 0x00, 0x00, 0x70, 0xa0, 0xf8, 0x00, 0x00},
         {0x32, 0x00, 0x96, 0x00, 0xA2, 0x02, 0xaf, 0x00},
 };
@@ -290,7 +282,7 @@ static int sd_start(struct gspca_dev *gspca_dev)
         if (gspca_dev->width == 176)
                 pac207_write_reg(gspca_dev, 0x4a, 0xff);
         else
-                pac207_write_reg(gspca_dev, 0x4a, 0x88);
+                pac207_write_reg(gspca_dev, 0x4a, 0x30);
         pac207_write_reg(gspca_dev, 0x4b, 0x00); /* Sram test value */
         pac207_write_reg(gspca_dev, 0x08, sd->brightness);
 
@@ -339,7 +331,7 @@ static void pac207_do_auto_gain(struct gspca_dev *gspca_dev)
         if (sd->autogain_ignore_frames > 0)
                 sd->autogain_ignore_frames--;
         else if (gspca_auto_gain_n_exposure(gspca_dev, avg_lum,
-                        100 + sd->brightness / 2, PAC207_AUTOGAIN_DEADZONE,
+                        100, PAC207_AUTOGAIN_DEADZONE,
                         PAC207_GAIN_KNEE, PAC207_EXPOSURE_KNEE))
                 sd->autogain_ignore_frames = PAC_AUTOGAIN_IGNORE_FRAMES;
 }