V4L/DVB (14000): gspca_ov519: ov764x remove setting of AEC limits

ov764x remove setting of AEC limits, as the custom values cause AEC
oscilation in 320x240.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 4 insertions, 6 deletions

diff --git a/drivers/media/video/gspca/ov519.c b/drivers/media/video/gspca/ov519.c
index f94f41eb222..541b8f0b0d3 100644
--- a/drivers/media/video/gspca/ov519.c
+++ b/drivers/media/video/gspca/ov519.c
@@ -3689,14 +3689,12 @@ static int mode_init_ov_sensor_regs(struct sd *sd)
         case SEN_OV7648:
                 i2c_w_mask(sd, 0x14, qvga ? 0x20 : 0x00, 0x20);
                 i2c_w_mask(sd, 0x28, qvga ? 0x00 : 0x20, 0x20);
-                /* The following 5 lines where commented out before with a
-                   comment wondering if they did anything. This was because
-                   the old driver did only 640x480, at 320x240 these 5 writes
-                   *significantly* improve the image quality. */
-                i2c_w(sd, 0x24, qvga ? 0x20 : 0x3a);
-                i2c_w(sd, 0x25, qvga ? 0x30 : 0x60);
+                /* Setting this undocumented bit in qvga mode removes a very
+                   annoying vertical shaking of the image */
                 i2c_w_mask(sd, 0x2d, qvga ? 0x40 : 0x00, 0x40);
+                /* Unknown */
                 i2c_w_mask(sd, 0x67, qvga ? 0xf0 : 0x90, 0xf0);
+                /* Allow higher automatic gain (to allow higher framerates) */
                 i2c_w_mask(sd, 0x74, qvga ? 0x20 : 0x00, 0x20);
                 i2c_w_mask(sd, 0x12, 0x04, 0x04); /* AWB: 1 */
                 break;