V4L/DVB: gspca - ov534: Fix Auto White Balance control

Set only the needed bits for AWB, and enable it by default.

Signed-off-by: Max Thrun <bear24rw@gmail.com>
Signed-off-by: Antonio Ospite <ospite@studenti.unina.it>
Signed-off-by: Jean-François Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

diff --git a/drivers/media/video/gspca/ov534.c b/drivers/media/video/gspca/ov534.c
index 4fda098..3b538d7 100644 (file)
--- a/drivers/media/video/gspca/ov534.c
+++ b/drivers/media/video/gspca/ov534.c
@@ -171,7 +171,7 @@ static const struct ctrl sd_ctrls[] = {
                .minimum = 0,
                .maximum = 1,
                .step    = 1,
-#define AWB_DEF 0
+#define AWB_DEF 1
                .default_value = AWB_DEF,
        },
        .set = sd_setawb,
@@ -723,10 +723,17 @@ static void setawb(struct gspca_dev *gspca_dev)
 {
        struct sd *sd = (struct sd *) gspca_dev;
 
-       if (sd->awb)
-               sccb_reg_write(gspca_dev, 0x63, 0xe0);  /* AWB on */
-       else
-               sccb_reg_write(gspca_dev, 0x63, 0xaa);  /* AWB off */
+       if (sd->awb) {
+               sccb_reg_write(gspca_dev, 0x13,
+                               sccb_reg_read(gspca_dev, 0x13) | 0x02);
+               sccb_reg_write(gspca_dev, 0x63,
+                               sccb_reg_read(gspca_dev, 0x63) | 0xc0);
+       } else {
+               sccb_reg_write(gspca_dev, 0x13,
+                               sccb_reg_read(gspca_dev, 0x13) & ~0x02);
+               sccb_reg_write(gspca_dev, 0x63,
+                               sccb_reg_read(gspca_dev, 0x63) & ~0xc0);
+       }
 }
 
 static void setaec(struct gspca_dev *gspca_dev)
@@ -805,9 +812,7 @@ static int sd_config(struct gspca_dev *gspca_dev,
 #else
        gspca_dev->ctrl_inac |= (1 << AWB_IDX);
 #endif
-#if AWB_DEF != 0
-       sd->awb = AWB_DEF
-#endif
+       sd->awb = AWB_DEF;
        sd->aec = AEC_DEF;
 #if SHARPNESS_DEF != 0
        sd->sharpness = SHARPNESS_DEF;