V4L/DVB: gspca - ov534: Remove hue control

Hue control doesn't work and the sensor datasheet is not clear about how
to set hue properly.
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>

drivers/media/video/gspca/ov534.c

@@ -60,7 +60,6 @@ struct sd {
 	u8 contrast;
 	u8 gain;
 	u8 exposure;
-	u8 hue;
 	u8 autogain;
 	u8 awb;
 	s8 sharpness;
@@ -82,8 +81,6 @@ static int sd_sethflip(struct gspca_dev *gspca_dev, __s32 val);
 static int sd_gethflip(struct gspca_dev *gspca_dev, __s32 *val);
 static int sd_setvflip(struct gspca_dev *gspca_dev, __s32 val);
 static int sd_getvflip(struct gspca_dev *gspca_dev, __s32 *val);
-static int sd_sethue(struct gspca_dev *gspca_dev, __s32 val);
-static int sd_gethue(struct gspca_dev *gspca_dev, __s32 *val);
 static int sd_setawb(struct gspca_dev *gspca_dev, __s32 val);
 static int sd_getawb(struct gspca_dev *gspca_dev, __s32 *val);
 static int sd_setbrightness(struct gspca_dev *gspca_dev, __s32 val);
@@ -149,20 +146,6 @@ static const struct ctrl sd_ctrls[] = {
 	.get = sd_getexposure,
     },
     {							/* 4 */
-	{
-		.id      = V4L2_CID_HUE,
-		.type    = V4L2_CTRL_TYPE_INTEGER,
-		.name    = "Hue",
-		.minimum = 0,
-		.maximum = 255,
-		.step    = 1,
-#define HUE_DEF 143
-		.default_value = HUE_DEF,
-	},
-	.set = sd_sethue,
-	.get = sd_gethue,
-    },
-    {							/* 5 */
 	{
 	    .id      = V4L2_CID_AUTOGAIN,
 	    .type    = V4L2_CTRL_TYPE_BOOLEAN,
@@ -176,8 +159,8 @@ static const struct ctrl sd_ctrls[] = {
 	.set = sd_setautogain,
 	.get = sd_getautogain,
     },
-#define AWB_IDX 6
-    {							/* 6 */
+#define AWB_IDX 5
+    {							/* 5 */
 	{
 		.id      = V4L2_CID_AUTO_WHITE_BALANCE,
 		.type    = V4L2_CTRL_TYPE_BOOLEAN,
@@ -191,7 +174,7 @@ static const struct ctrl sd_ctrls[] = {
 	.set = sd_setawb,
 	.get = sd_getawb,
     },
-    {							/* 7 */
+    {							/* 6 */
 	{
 	    .id      = V4L2_CID_SHARPNESS,
 	    .type    = V4L2_CTRL_TYPE_INTEGER,
@@ -205,7 +188,7 @@ static const struct ctrl sd_ctrls[] = {
 	.set = sd_setsharpness,
 	.get = sd_getsharpness,
     },
-    {							/* 8 */
+    {							/* 7 */
 	{
 	    .id      = V4L2_CID_HFLIP,
 	    .type    = V4L2_CTRL_TYPE_BOOLEAN,
@@ -219,7 +202,7 @@ static const struct ctrl sd_ctrls[] = {
 	.set = sd_sethflip,
 	.get = sd_gethflip,
     },
-    {							/* 9 */
+    {							/* 8 */
 	{
 	    .id      = V4L2_CID_VFLIP,
 	    .type    = V4L2_CTRL_TYPE_BOOLEAN,
@@ -688,13 +671,6 @@ static void setexposure(struct gspca_dev *gspca_dev)
 	sccb_reg_write(gspca_dev, 0x10, val << 1);
 }
 
-static void sethue(struct gspca_dev *gspca_dev)
-{
-	struct sd *sd = (struct sd *) gspca_dev;
-
-	sccb_reg_write(gspca_dev, 0x01, sd->hue);
-}
-
 static void setautogain(struct gspca_dev *gspca_dev)
 {
 	struct sd *sd = (struct sd *) gspca_dev;
@@ -777,7 +753,6 @@ static int sd_config(struct gspca_dev *gspca_dev,
 	sd->contrast = CONTRAST_DEF;
 	sd->gain = GAIN_DEF;
 	sd->exposure = EXPO_DEF;
-	sd->hue = HUE_DEF;
 #if AUTOGAIN_DEF != 0
 	sd->autogain = AUTOGAIN_DEF;
 #else
@@ -857,7 +832,6 @@ static int sd_start(struct gspca_dev *gspca_dev)
 	setautogain(gspca_dev);
 	setawb(gspca_dev);
 	setgain(gspca_dev);
-	sethue(gspca_dev);
 	setexposure(gspca_dev);
 	setbrightness(gspca_dev);
 	setcontrast(gspca_dev);
@@ -1040,24 +1014,6 @@ static int sd_getcontrast(struct gspca_dev *gspca_dev, __s32 *val)
 	return 0;
 }
 
-static int sd_sethue(struct gspca_dev *gspca_dev, __s32 val)
-{
-	struct sd *sd = (struct sd *) gspca_dev;
-
-	sd->hue = val;
-	if (gspca_dev->streaming)
-		sethue(gspca_dev);
-	return 0;
-}
-
-static int sd_gethue(struct gspca_dev *gspca_dev, __s32 *val)
-{
-	struct sd *sd = (struct sd *) gspca_dev;
-
-	*val = sd->hue;
-	return 0;
-}
-
 static int sd_setautogain(struct gspca_dev *gspca_dev, __s32 val)
 {
 	struct sd *sd = (struct sd *) gspca_dev;