Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/v4l-dvb

* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/v4l-dvb: (23 commits)
  V4L/DVB (8617): uvcvideo: don't use stack-based buffers for USB transfers.
  V4L/DVB (8616): uvcvideo: Add support for two Bison Electronics webcams
  V4L/DVB (8611): Add suspend/resume to pxa_camera driver
  V4L/DVB (8610): Add suspend/resume capabilities to soc_camera.
  V4L/DVB (8609): media: Clean up platform_driver_unregister() bogosity.
  V4L/DVB (8607): cxusb: fix OOPS and broken tuning regression on FusionHDTV Dual Digital 4
  V4L/DVB (8605): gspca: Fix of gspca_zc3xx oops - 2.6.27-rc1
  V4L/DVB (8604): gspca: Fix of "scheduling while atomic" crash.
  V4L/DVB (8602): gspca: Fix small bugs, simplify and cleanup ov519.
  V4L/DVB (8582): set mts_firmware for em2882 based Pinnacle Hybrid Pro
  V4L/DVB (8574): gspca: Bad bytesperlines of pixelformat in spca505/506/508 and vc023x.
  V4L/DVB (8573): gspca: Bad scan of frame in spca505/506/508.
  V4L/DVB (8572): gspca: Webcam 0c45:6143 in documentation.
  V4L/DVB (8571): gspca: Don't use CONFIG_VIDEO_ADV_DEBUG as a compile option.
  V4L/DVB (8569): gspca: Set back the old values of Sonix sn9c120 and cleanup source.
  V4L/DVB (8567): gspca: hflip and vflip controls added for ov519 - ov7670 plus init cleanup.
  V4L/DVB (8564): fix vino driver build error
  V4L/DVB (8563): fix drivers/media/video/arv.c compilation
  V4L/DVB (8562): DVB_DRX397XD: remove FW_LOADER select
  V4L/DVB (8558): media/video/Kconfig: fix a typo
  ...

1 files changed, 26 insertions, 16 deletions

diff --git a/drivers/media/video/gspca/spca561.c b/drivers/media/video/gspca/spca561.c
index a26174508cb9..1073ac3d2ec6 100644
--- a/drivers/media/video/gspca/spca561.c
+++ b/drivers/media/video/gspca/spca561.c
@@ -644,6 +644,18 @@ static void setcontrast(struct gspca_dev *gspca_dev)
 	}
 }
 
+static void setautogain(struct gspca_dev *gspca_dev)
+{
+	struct sd *sd = (struct sd *) gspca_dev;
+
+	if (sd->chip_revision == Rev072A) {
+		if (sd->autogain)
+			sd->ag_cnt = AG_CNT_START;
+		else
+			sd->ag_cnt = -1;
+	}
+}
+
 static void sd_start(struct gspca_dev *gspca_dev)
 {
 	struct sd *sd = (struct sd *) gspca_dev;
@@ -671,6 +683,7 @@ static void sd_start(struct gspca_dev *gspca_dev)
 		reg_w_val(dev, 0x8500, mode);	/* mode */
 		reg_w_val(dev, 0x8700, Clck);	/* 0x27 clock */
 		reg_w_val(dev, 0x8112, 0x10 | 0x20);
+		setautogain(gspca_dev);
 		break;
 	default:
 /*	case Rev012A: */
@@ -720,18 +733,24 @@ static void sd_close(struct gspca_dev *gspca_dev)
 	reg_w_val(gspca_dev->dev, 0x8114, 0);
 }
 
-static void setautogain(struct gspca_dev *gspca_dev)
+static void do_autogain(struct gspca_dev *gspca_dev)
 {
 	struct sd *sd = (struct sd *) gspca_dev;
-	int expotimes = 0;
-	int pixelclk = 0;
-	int gainG = 0;
+	int expotimes;
+	int pixelclk;
+	int gainG;
 	__u8 R, Gr, Gb, B;
 	int y;
 	__u8 luma_mean = 110;
 	__u8 luma_delta = 20;
 	__u8 spring = 4;
 
+	if (sd->ag_cnt < 0)
+		return;
+	if (--sd->ag_cnt >= 0)
+		return;
+	sd->ag_cnt = AG_CNT_START;
+
 	switch (sd->chip_revision) {
 	case Rev072A:
 		reg_r(gspca_dev, 0x8621, 1);
@@ -795,18 +814,10 @@ static void sd_pkt_scan(struct gspca_dev *gspca_dev,
 			__u8 *data,		/* isoc packet */
 			int len)		/* iso packet length */
 {
-	struct sd *sd = (struct sd *) gspca_dev;
-
 	switch (data[0]) {
 	case 0:		/* start of frame */
 		frame = gspca_frame_add(gspca_dev, LAST_PACKET, frame,
 					data, 0);
-		if (sd->ag_cnt >= 0) {
-			if (--sd->ag_cnt < 0) {
-				sd->ag_cnt = AG_CNT_START;
-				setautogain(gspca_dev);
-			}
-		}
 		data += SPCA561_OFFSET_DATA;
 		len -= SPCA561_OFFSET_DATA;
 		if (data[1] & 0x10) {
@@ -944,10 +955,8 @@ static int sd_setautogain(struct gspca_dev *gspca_dev, __s32 val)
 	struct sd *sd = (struct sd *) gspca_dev;
 
 	sd->autogain = val;
-	if (val)
-		sd->ag_cnt = AG_CNT_START;
-	else
-		sd->ag_cnt = -1;
+	if (gspca_dev->streaming)
+		setautogain(gspca_dev);
 	return 0;
 }
 
@@ -971,6 +980,7 @@ static const struct sd_desc sd_desc = {
 	.stop0 = sd_stop0,
 	.close = sd_close,
 	.pkt_scan = sd_pkt_scan,
+	.dq_callback = do_autogain,
 };
 
 /* -- module initialisation -- */