Merge branch 'linus' into sched/core

Conflicts:
	kernel/Makefile

26 files changed, 465 insertions, 292 deletions

diff --git a/drivers/media/video/cafe_ccic.c b/drivers/media/video/cafe_ccic.c
index a8c068e1de1c..1740b9ebdcef 100644
--- a/drivers/media/video/cafe_ccic.c
+++ b/drivers/media/video/cafe_ccic.c
@@ -1476,12 +1476,9 @@ static int cafe_v4l_open(struct inode *inode, struct file *filp)
 {
 	struct cafe_camera *cam;
 
-	lock_kernel();
 	cam = cafe_find_dev(iminor(inode));
-	if (cam == NULL) {
-		unlock_kernel();
+	if (cam == NULL)
 		return -ENODEV;
-	}
 	filp->private_data = cam;
 
 	mutex_lock(&cam->s_mutex);
@@ -1493,7 +1490,6 @@ static int cafe_v4l_open(struct inode *inode, struct file *filp)
 	}
 	(cam->users)++;
 	mutex_unlock(&cam->s_mutex);
-	unlock_kernel();
 	return 0;
 }
 
diff --git a/drivers/media/video/compat_ioctl32.c b/drivers/media/video/compat_ioctl32.c
index bd5d9de5a008..e6ca4012b5f0 100644
--- a/drivers/media/video/compat_ioctl32.c
+++ b/drivers/media/video/compat_ioctl32.c
@@ -867,6 +867,7 @@ long v4l_compat_ioctl32(struct file *file, unsigned int cmd, unsigned long arg)
 	case VIDIOC_STREAMON32:
 	case VIDIOC_STREAMOFF32:
 	case VIDIOC_G_PARM:
+	case VIDIOC_S_PARM:
 	case VIDIOC_G_STD:
 	case VIDIOC_S_STD:
 	case VIDIOC_G_TUNER:
@@ -885,6 +886,8 @@ long v4l_compat_ioctl32(struct file *file, unsigned int cmd, unsigned long arg)
 	case VIDIOC_S_INPUT32:
 	case VIDIOC_TRY_FMT32:
 	case VIDIOC_S_HW_FREQ_SEEK:
+	case VIDIOC_ENUM_FRAMESIZES:
+	case VIDIOC_ENUM_FRAMEINTERVALS:
 		ret = do_video_ioctl(file, cmd, arg);
 		break;
 
diff --git a/drivers/media/video/cx18/cx18-driver.c b/drivers/media/video/cx18/cx18-driver.c
index 7a1a7830a6b3..7874d9790a51 100644
--- a/drivers/media/video/cx18/cx18-driver.c
+++ b/drivers/media/video/cx18/cx18-driver.c
@@ -448,7 +448,14 @@ static int __devinit cx18_init_struct1(struct cx18 *cx)
 	mutex_init(&cx->gpio_lock);
 
 	spin_lock_init(&cx->lock);
-	spin_lock_init(&cx->dma_reg_lock);
+
+	cx->work_queue = create_singlethread_workqueue(cx->name);
+	if (cx->work_queue == NULL) {
+		CX18_ERR("Could not create work queue\n");
+		return -1;
+	}
+
+	INIT_WORK(&cx->work, cx18_work_handler);
 
 	/* start counting open_id at 1 */
 	cx->open_id = 1;
@@ -581,10 +588,10 @@ static void cx18_load_and_init_modules(struct cx18 *cx)
 
 #ifdef MODULE
 	/* load modules */
-#ifndef CONFIG_MEDIA_TUNER
+#ifdef CONFIG_MEDIA_TUNER_MODULE
 	hw = cx18_request_module(cx, hw, "tuner", CX18_HW_TUNER);
 #endif
-#ifndef CONFIG_VIDEO_CS5345
+#ifdef CONFIG_VIDEO_CS5345_MODULE
 	hw = cx18_request_module(cx, hw, "cs5345", CX18_HW_CS5345);
 #endif
 #endif
@@ -832,6 +839,7 @@ free_map:
 free_mem:
 	release_mem_region(cx->base_addr, CX18_MEM_SIZE);
 free_workqueue:
+	destroy_workqueue(cx->work_queue);
 err:
 	if (retval == 0)
 		retval = -ENODEV;
@@ -932,6 +940,9 @@ static void cx18_remove(struct pci_dev *pci_dev)
 
 	cx18_halt_firmware(cx);
 
+	flush_workqueue(cx->work_queue);
+	destroy_workqueue(cx->work_queue);
+
 	cx18_streams_cleanup(cx, 1);
 
 	exit_cx18_i2c(cx);
diff --git a/drivers/media/video/cx18/cx18-driver.h b/drivers/media/video/cx18/cx18-driver.h
index a4b1708fafe7..bbdd5f25041d 100644
--- a/drivers/media/video/cx18/cx18-driver.h
+++ b/drivers/media/video/cx18/cx18-driver.h
@@ -199,12 +199,15 @@ struct cx18_options {
 #define CX18_F_S_APPL_IO        8	/* this stream is used read/written by an application */
 
 /* per-cx18, i_flags */
-#define CX18_F_I_LOADED_FW	0 	/* Loaded the firmware the first time */
-#define CX18_F_I_EOS		4 	/* End of encoder stream reached */
-#define CX18_F_I_RADIO_USER	5 	/* The radio tuner is selected */
-#define CX18_F_I_ENC_PAUSED	13 	/* the encoder is paused */
-#define CX18_F_I_INITED		21 	/* set after first open */
-#define CX18_F_I_FAILED		22 	/* set if first open failed */
+#define CX18_F_I_LOADED_FW		0 	/* Loaded firmware 1st time */
+#define CX18_F_I_EOS			4 	/* End of encoder stream */
+#define CX18_F_I_RADIO_USER		5 	/* radio tuner is selected */
+#define CX18_F_I_ENC_PAUSED		13 	/* the encoder is paused */
+#define CX18_F_I_HAVE_WORK		15   	/* there is work to be done */
+#define CX18_F_I_WORK_HANDLER_DVB	18   	/* work to be done for DVB */
+#define CX18_F_I_INITED			21 	/* set after first open */
+#define CX18_F_I_FAILED			22 	/* set if first open failed */
+#define CX18_F_I_WORK_INITED		23	/* worker thread initialized */
 
 /* These are the VBI types as they appear in the embedded VBI private packets. */
 #define CX18_SLICED_TYPE_TELETEXT_B     (1)
@@ -402,8 +405,6 @@ struct cx18 {
 	spinlock_t lock;        /* lock access to this struct */
 	int search_pack_header;
 
-	spinlock_t dma_reg_lock; /* lock access to DMA engine registers */
-
 	int open_id;		/* incremented each time an open occurs, used as
 				   unique ID. Starts at 1, so 0 can be used as
 				   uninitialized value in the stream->id. */
@@ -433,6 +434,9 @@ struct cx18 {
 	/* when the current DMA is finished this queue is woken up */
 	wait_queue_head_t dma_waitq;
 
+	struct workqueue_struct *work_queue;
+	struct work_struct work;
+
 	/* i2c */
 	struct i2c_adapter i2c_adap[2];
 	struct i2c_algo_bit_data i2c_algo[2];
diff --git a/drivers/media/video/cx18/cx18-dvb.c b/drivers/media/video/cx18/cx18-dvb.c
index afc694e7bdb2..4542e2e5e3d7 100644
--- a/drivers/media/video/cx18/cx18-dvb.c
+++ b/drivers/media/video/cx18/cx18-dvb.c
@@ -23,6 +23,8 @@
 #include "cx18-dvb.h"
 #include "cx18-io.h"
 #include "cx18-streams.h"
+#include "cx18-queue.h"
+#include "cx18-scb.h"
 #include "cx18-cards.h"
 #include "s5h1409.h"
 #include "mxl5005s.h"
@@ -300,3 +302,24 @@ static int dvb_register(struct cx18_stream *stream)
 
 	return ret;
 }
+
+void cx18_dvb_work_handler(struct cx18 *cx)
+{
+	struct cx18_buffer *buf;
+	struct cx18_stream *s = &cx->streams[CX18_ENC_STREAM_TYPE_TS];
+
+	while ((buf = cx18_dequeue(s, &s->q_full)) != NULL) {
+		if (s->dvb.enabled)
+			dvb_dmx_swfilter(&s->dvb.demux, buf->buf,
+					 buf->bytesused);
+
+		cx18_enqueue(s, buf, &s->q_free);
+		cx18_buf_sync_for_device(s, buf);
+		if (s->handle == CX18_INVALID_TASK_HANDLE) /* FIXME: improve */
+			continue;
+
+		cx18_vapi(cx, CX18_CPU_DE_SET_MDL, 5, s->handle,
+		       (void __iomem *)&cx->scb->cpu_mdl[buf->id] - cx->enc_mem,
+		       1, buf->id, s->buf_size);
+	}
+}
diff --git a/drivers/media/video/cx18/cx18-dvb.h b/drivers/media/video/cx18/cx18-dvb.h
index bf8d8f6f5455..bbdcefc87f28 100644
--- a/drivers/media/video/cx18/cx18-dvb.h
+++ b/drivers/media/video/cx18/cx18-dvb.h
@@ -23,3 +23,4 @@
 
 int cx18_dvb_register(struct cx18_stream *stream);
 void cx18_dvb_unregister(struct cx18_stream *stream);
+void cx18_dvb_work_handler(struct cx18 *cx);
diff --git a/drivers/media/video/cx18/cx18-io.c b/drivers/media/video/cx18/cx18-io.c
index 700ab9439c16..220fae8d4ad7 100644
--- a/drivers/media/video/cx18/cx18-io.c
+++ b/drivers/media/video/cx18/cx18-io.c
@@ -88,6 +88,19 @@ void cx18_writel_retry(struct cx18 *cx, u32 val, void __iomem *addr)
 	cx18_log_write_retries(cx, i, addr);
 }
 
+void _cx18_writel_expect(struct cx18 *cx, u32 val, void __iomem *addr,
+			 u32 eval, u32 mask)
+{
+	int i;
+	eval &= mask;
+	for (i = 0; i < CX18_MAX_MMIO_RETRIES; i++) {
+		cx18_writel_noretry(cx, val, addr);
+		if (eval == (cx18_readl_noretry(cx, addr) & mask))
+			break;
+	}
+	cx18_log_write_retries(cx, i, addr);
+}
+
 void cx18_writew_retry(struct cx18 *cx, u16 val, void __iomem *addr)
 {
 	int i;
@@ -218,7 +231,7 @@ void cx18_memset_io(struct cx18 *cx, void __iomem *addr, int val, size_t count)
 void cx18_sw1_irq_enable(struct cx18 *cx, u32 val)
 {
 	u32 r;
-	cx18_write_reg(cx, val, SW1_INT_STATUS);
+	cx18_write_reg_expect(cx, val, SW1_INT_STATUS, ~val, val);
 	r = cx18_read_reg(cx, SW1_INT_ENABLE_PCI);
 	cx18_write_reg(cx, r | val, SW1_INT_ENABLE_PCI);
 }
@@ -233,7 +246,7 @@ void cx18_sw1_irq_disable(struct cx18 *cx, u32 val)
 void cx18_sw2_irq_enable(struct cx18 *cx, u32 val)
 {
 	u32 r;
-	cx18_write_reg(cx, val, SW2_INT_STATUS);
+	cx18_write_reg_expect(cx, val, SW2_INT_STATUS, ~val, val);
 	r = cx18_read_reg(cx, SW2_INT_ENABLE_PCI);
 	cx18_write_reg(cx, r | val, SW2_INT_ENABLE_PCI);
 }
diff --git a/drivers/media/video/cx18/cx18-io.h b/drivers/media/video/cx18/cx18-io.h
index 287a5e8bf67b..425244453ea7 100644
--- a/drivers/media/video/cx18/cx18-io.h
+++ b/drivers/media/video/cx18/cx18-io.h
@@ -133,6 +133,8 @@ static inline void cx18_writel(struct cx18 *cx, u32 val, void __iomem *addr)
 		cx18_writel_noretry(cx, val, addr);
 }
 
+void _cx18_writel_expect(struct cx18 *cx, u32 val, void __iomem *addr,
+			 u32 eval, u32 mask);
 
 static inline
 void cx18_writew_noretry(struct cx18 *cx, u16 val, void __iomem *addr)
@@ -271,6 +273,21 @@ static inline void cx18_write_reg(struct cx18 *cx, u32 val, u32 reg)
 		cx18_write_reg_noretry(cx, val, reg);
 }
 
+static inline void _cx18_write_reg_expect(struct cx18 *cx, u32 val, u32 reg,
+					  u32 eval, u32 mask)
+{
+	_cx18_writel_expect(cx, val, cx->reg_mem + reg, eval, mask);
+}
+
+static inline void cx18_write_reg_expect(struct cx18 *cx, u32 val, u32 reg,
+					 u32 eval, u32 mask)
+{
+	if (cx18_retry_mmio)
+		_cx18_write_reg_expect(cx, val, reg, eval, mask);
+	else
+		cx18_write_reg_noretry(cx, val, reg);
+}
+
 
 static inline u32 cx18_read_reg_noretry(struct cx18 *cx, u32 reg)
 {
diff --git a/drivers/media/video/cx18/cx18-irq.c b/drivers/media/video/cx18/cx18-irq.c
index 360330f5463f..5fbfbd0f1493 100644
--- a/drivers/media/video/cx18/cx18-irq.c
+++ b/drivers/media/video/cx18/cx18-irq.c
@@ -29,8 +29,20 @@
 #include "cx18-mailbox.h"
 #include "cx18-vbi.h"
 #include "cx18-scb.h"
+#include "cx18-dvb.h"
 
-#define DMA_MAGIC_COOKIE 0x000001fe
+void cx18_work_handler(struct work_struct *work)
+{
+	struct cx18 *cx = container_of(work, struct cx18, work);
+	if (test_and_clear_bit(CX18_F_I_WORK_INITED, &cx->i_flags)) {
+		struct sched_param param = { .sched_priority = MAX_RT_PRIO-1 };
+		/* This thread must use the FIFO scheduler as it
+		 * is realtime sensitive. */
+		sched_setscheduler(current, SCHED_FIFO, &param);
+	}
+	if (test_and_clear_bit(CX18_F_I_WORK_HANDLER_DVB, &cx->i_flags))
+		cx18_dvb_work_handler(cx);
+}
 
 static void epu_dma_done(struct cx18 *cx, struct cx18_mailbox *mb)
 {
@@ -67,17 +79,11 @@ static void epu_dma_done(struct cx18 *cx, struct cx18_mailbox *mb)
 	if (buf) {
 		cx18_buf_sync_for_cpu(s, buf);
 		if (s->type == CX18_ENC_STREAM_TYPE_TS && s->dvb.enabled) {
-			/* process the buffer here */
-			CX18_DEBUG_HI_DMA("TS recv and sent bytesused=%d\n",
-					buf->bytesused);
-
-			dvb_dmx_swfilter(&s->dvb.demux, buf->buf,
+			CX18_DEBUG_HI_DMA("TS recv bytesused = %d\n",
 					buf->bytesused);
 
-			cx18_buf_sync_for_device(s, buf);
-			cx18_vapi(cx, CX18_CPU_DE_SET_MDL, 5, s->handle,
-			    (void __iomem *)&cx->scb->cpu_mdl[buf->id] - cx->enc_mem,
-			    1, buf->id, s->buf_size);
+			set_bit(CX18_F_I_WORK_HANDLER_DVB, &cx->i_flags);
+			set_bit(CX18_F_I_HAVE_WORK, &cx->i_flags);
 		} else
 			set_bit(CX18_F_B_NEED_BUF_SWAP, &buf->b_flags);
 	} else {
@@ -109,7 +115,7 @@ static void epu_debug(struct cx18 *cx, struct cx18_mailbox *mb)
 		CX18_INFO("FW version: %s\n", p - 1);
 }
 
-static void hpu_cmd(struct cx18 *cx, u32 sw1)
+static void epu_cmd(struct cx18 *cx, u32 sw1)
 {
 	struct cx18_mailbox mb;
 
@@ -125,12 +131,31 @@ static void hpu_cmd(struct cx18 *cx, u32 sw1)
 			epu_debug(cx, &mb);
 			break;
 		default:
-			CX18_WARN("Unexpected mailbox command %08x\n", mb.cmd);
+			CX18_WARN("Unknown CPU_TO_EPU mailbox command %#08x\n",
+				  mb.cmd);
 			break;
 		}
 	}
-	if (sw1 & (IRQ_APU_TO_EPU | IRQ_HPU_TO_EPU))
-		CX18_WARN("Unexpected interrupt %08x\n", sw1);
+
+	if (sw1 & IRQ_APU_TO_EPU) {
+		cx18_memcpy_fromio(cx, &mb, &cx->scb->apu2epu_mb, sizeof(mb));
+		CX18_WARN("Unknown APU_TO_EPU mailbox command %#08x\n", mb.cmd);
+	}
+
+	if (sw1 & IRQ_HPU_TO_EPU) {
+		cx18_memcpy_fromio(cx, &mb, &cx->scb->hpu2epu_mb, sizeof(mb));
+		CX18_WARN("Unknown HPU_TO_EPU mailbox command %#08x\n", mb.cmd);
+	}
+}
+
+static void xpu_ack(struct cx18 *cx, u32 sw2)
+{
+	if (sw2 & IRQ_CPU_TO_EPU_ACK)
+		wake_up(&cx->mb_cpu_waitq);
+	if (sw2 & IRQ_APU_TO_EPU_ACK)
+		wake_up(&cx->mb_apu_waitq);
+	if (sw2 & IRQ_HPU_TO_EPU_ACK)
+		wake_up(&cx->mb_hpu_waitq);
 }
 
 irqreturn_t cx18_irq_handler(int irq, void *dev_id)
@@ -140,43 +165,36 @@ irqreturn_t cx18_irq_handler(int irq, void *dev_id)
 	u32 sw2, sw2_mask;
 	u32 hw2, hw2_mask;
 
-	spin_lock(&cx->dma_reg_lock);
-
+	sw1_mask = cx18_read_reg(cx, SW1_INT_ENABLE_PCI);
+	sw1 = cx18_read_reg(cx, SW1_INT_STATUS) & sw1_mask;
+	sw2_mask = cx18_read_reg(cx, SW2_INT_ENABLE_PCI);
+	sw2 = cx18_read_reg(cx, SW2_INT_STATUS) & sw2_mask;
 	hw2_mask = cx18_read_reg(cx, HW2_INT_MASK5_PCI);
 	hw2 = cx18_read_reg(cx, HW2_INT_CLR_STATUS) & hw2_mask;
-	sw2_mask = cx18_read_reg(cx, SW2_INT_ENABLE_PCI) | IRQ_EPU_TO_HPU_ACK;
-	sw2 = cx18_read_reg(cx, SW2_INT_STATUS) & sw2_mask;
-	sw1_mask = cx18_read_reg(cx, SW1_INT_ENABLE_PCI) | IRQ_EPU_TO_HPU;
-	sw1 = cx18_read_reg(cx, SW1_INT_STATUS) & sw1_mask;
 
-	cx18_write_reg(cx, sw2&sw2_mask, SW2_INT_STATUS);
-	cx18_write_reg(cx, sw1&sw1_mask, SW1_INT_STATUS);
-	cx18_write_reg(cx, hw2&hw2_mask, HW2_INT_CLR_STATUS);
+	if (sw1)
+		cx18_write_reg_expect(cx, sw1, SW1_INT_STATUS, ~sw1, sw1);
+	if (sw2)
+		cx18_write_reg_expect(cx, sw2, SW2_INT_STATUS, ~sw2, sw2);
+	if (hw2)
+		cx18_write_reg_expect(cx, hw2, HW2_INT_CLR_STATUS, ~hw2, hw2);
 
 	if (sw1 || sw2 || hw2)
 		CX18_DEBUG_HI_IRQ("SW1: %x  SW2: %x  HW2: %x\n", sw1, sw2, hw2);
 
 	/* To do: interrupt-based I2C handling
-	if (hw2 & 0x00c00000) {
+	if (hw2 & (HW2_I2C1_INT|HW2_I2C2_INT)) {
 	}
 	*/
 
-	if (sw2) {
-		if (sw2 & (cx18_readl(cx, &cx->scb->cpu2hpu_irq_ack) |
-			   cx18_readl(cx, &cx->scb->cpu2epu_irq_ack)))
-			wake_up(&cx->mb_cpu_waitq);
-		if (sw2 & (cx18_readl(cx, &cx->scb->apu2hpu_irq_ack) |
-			   cx18_readl(cx, &cx->scb->apu2epu_irq_ack)))
-			wake_up(&cx->mb_apu_waitq);
-		if (sw2 & cx18_readl(cx, &cx->scb->epu2hpu_irq_ack))
-			wake_up(&cx->mb_epu_waitq);
-		if (sw2 & cx18_readl(cx, &cx->scb->hpu2epu_irq_ack))
-			wake_up(&cx->mb_hpu_waitq);
-	}
+	if (sw2)
+		xpu_ack(cx, sw2);
 
 	if (sw1)
-		hpu_cmd(cx, sw1);
-	spin_unlock(&cx->dma_reg_lock);
+		epu_cmd(cx, sw1);
+
+	if (test_and_clear_bit(CX18_F_I_HAVE_WORK, &cx->i_flags))
+		queue_work(cx->work_queue, &cx->work);
 
-	return (hw2 | sw1 | sw2) ? IRQ_HANDLED : IRQ_NONE;
+	return (sw1 || sw2 || hw2) ? IRQ_HANDLED : IRQ_NONE;
 }
diff --git a/drivers/media/video/cx18/cx18-irq.h b/drivers/media/video/cx18/cx18-irq.h
index 379f704f5cba..6173ca3bc9e4 100644
--- a/drivers/media/video/cx18/cx18-irq.h
+++ b/drivers/media/video/cx18/cx18-irq.h
@@ -32,6 +32,4 @@
 
 irqreturn_t cx18_irq_handler(int irq, void *dev_id);
 
-void cx18_irq_work_handler(struct work_struct *work);
-void cx18_dma_stream_dec_prepare(struct cx18_stream *s, u32 offset, int lock);
-void cx18_unfinished_dma(unsigned long arg);
+void cx18_work_handler(struct work_struct *work);
diff --git a/drivers/media/video/cx18/cx18-mailbox.c b/drivers/media/video/cx18/cx18-mailbox.c
index 9d18dd22de76..acff7dfb60df 100644
--- a/drivers/media/video/cx18/cx18-mailbox.c
+++ b/drivers/media/video/cx18/cx18-mailbox.c
@@ -83,7 +83,7 @@ static const struct cx18_api_info api_info[] = {
 	API_ENTRY(CPU, CX18_CPU_DE_SET_MDL_ACK,			0),
 	API_ENTRY(CPU, CX18_CPU_DE_SET_MDL,			API_FAST),
 	API_ENTRY(CPU, CX18_APU_RESETAI,			API_FAST),
-	API_ENTRY(CPU, CX18_CPU_DE_RELEASE_MDL,			0),
+	API_ENTRY(CPU, CX18_CPU_DE_RELEASE_MDL,			API_SLOW),
 	API_ENTRY(0, 0,						0),
 };
 
@@ -176,7 +176,7 @@ long cx18_mb_ack(struct cx18 *cx, const struct cx18_mailbox *mb)
 
 	cx18_setup_page(cx, SCB_OFFSET);
 	cx18_write_sync(cx, mb->request, &ack_mb->ack);
-	cx18_write_reg(cx, ack_irq, SW2_INT_SET);
+	cx18_write_reg_expect(cx, ack_irq, SW2_INT_SET, ack_irq, ack_irq);
 	return 0;
 }
 
@@ -225,7 +225,7 @@ static int cx18_api_call(struct cx18 *cx, u32 cmd, int args, u32 data[])
 	}
 	if (info->flags & API_FAST)
 		timeout /= 2;
-	cx18_write_reg(cx, irq, SW1_INT_SET);
+	cx18_write_reg_expect(cx, irq, SW1_INT_SET, irq, irq);
 
 	while (!sig && cx18_readl(cx, &mb->ack) != cx18_readl(cx, &mb->request)
 	       && cnt < 660) {
diff --git a/drivers/media/video/cx18/cx18-queue.c b/drivers/media/video/cx18/cx18-queue.c
index a33ba04a2686..174682c2582f 100644
--- a/drivers/media/video/cx18/cx18-queue.c
+++ b/drivers/media/video/cx18/cx18-queue.c
@@ -88,15 +88,13 @@ struct cx18_buffer *cx18_queue_get_buf_irq(struct cx18_stream *s, u32 id,
 
 		if (buf->id != id)
 			continue;
+
 		buf->bytesused = bytesused;
-		/* the transport buffers are handled differently,
-		   they are not moved to the full queue */
-		if (s->type != CX18_ENC_STREAM_TYPE_TS) {
-			atomic_dec(&s->q_free.buffers);
-			atomic_inc(&s->q_full.buffers);
-			s->q_full.bytesused += buf->bytesused;
-			list_move_tail(&buf->list, &s->q_full.list);
-		}
+		atomic_dec(&s->q_free.buffers);
+		atomic_inc(&s->q_full.buffers);
+		s->q_full.bytesused += buf->bytesused;
+		list_move_tail(&buf->list, &s->q_full.list);
+
 		spin_unlock(&s->qlock);
 		return buf;
 	}
diff --git a/drivers/media/video/cx18/cx18-scb.h b/drivers/media/video/cx18/cx18-scb.h
index 86b4cb15d163..594713bbed68 100644
--- a/drivers/media/video/cx18/cx18-scb.h
+++ b/drivers/media/video/cx18/cx18-scb.h
@@ -128,22 +128,22 @@ struct cx18_scb {
 	u32 apu2cpu_irq;
 	/* Value to write to register SW2 register set (0xC7003140) after the
 	   command is cleared */
-	u32 apu2cpu_irq_ack;
+	u32 cpu2apu_irq_ack;
 	u32 reserved2[13];
 
 	u32 hpu2cpu_mb_offset;
 	u32 hpu2cpu_irq;
-	u32 hpu2cpu_irq_ack;
+	u32 cpu2hpu_irq_ack;
 	u32 reserved3[13];
 
 	u32 ppu2cpu_mb_offset;
 	u32 ppu2cpu_irq;
-	u32 ppu2cpu_irq_ack;
+	u32 cpu2ppu_irq_ack;
 	u32 reserved4[13];
 
 	u32 epu2cpu_mb_offset;
 	u32 epu2cpu_irq;
-	u32 epu2cpu_irq_ack;
+	u32 cpu2epu_irq_ack;
 	u32 reserved5[13];
 	u32 reserved6[8];
 
@@ -153,22 +153,22 @@ struct cx18_scb {
 	u32 reserved11[7];
 	u32 cpu2apu_mb_offset;
 	u32 cpu2apu_irq;
-	u32 cpu2apu_irq_ack;
+	u32 apu2cpu_irq_ack;
 	u32 reserved12[13];
 
 	u32 hpu2apu_mb_offset;
 	u32 hpu2apu_irq;
-	u32 hpu2apu_irq_ack;
+	u32 apu2hpu_irq_ack;
 	u32 reserved13[13];
 
 	u32 ppu2apu_mb_offset;
 	u32 ppu2apu_irq;
-	u32 ppu2apu_irq_ack;
+	u32 apu2ppu_irq_ack;
 	u32 reserved14[13];
 
 	u32 epu2apu_mb_offset;
 	u32 epu2apu_irq;
-	u32 epu2apu_irq_ack;
+	u32 apu2epu_irq_ack;
 	u32 reserved15[13];
 	u32 reserved16[8];
 
@@ -178,22 +178,22 @@ struct cx18_scb {
 	u32 reserved21[7];
 	u32 cpu2hpu_mb_offset;
 	u32 cpu2hpu_irq;
-	u32 cpu2hpu_irq_ack;
+	u32 hpu2cpu_irq_ack;
 	u32 reserved22[13];
 
 	u32 apu2hpu_mb_offset;
 	u32 apu2hpu_irq;
-	u32 apu2hpu_irq_ack;
+	u32 hpu2apu_irq_ack;
 	u32 reserved23[13];
 
 	u32 ppu2hpu_mb_offset;
 	u32 ppu2hpu_irq;
-	u32 ppu2hpu_irq_ack;
+	u32 hpu2ppu_irq_ack;
 	u32 reserved24[13];
 
 	u32 epu2hpu_mb_offset;
 	u32 epu2hpu_irq;
-	u32 epu2hpu_irq_ack;
+	u32 hpu2epu_irq_ack;
 	u32 reserved25[13];
 	u32 reserved26[8];
 
@@ -203,22 +203,22 @@ struct cx18_scb {
 	u32 reserved31[7];
 	u32 cpu2ppu_mb_offset;
 	u32 cpu2ppu_irq;
-	u32 cpu2ppu_irq_ack;
+	u32 ppu2cpu_irq_ack;
 	u32 reserved32[13];
 
 	u32 apu2ppu_mb_offset;
 	u32 apu2ppu_irq;
-	u32 apu2ppu_irq_ack;
+	u32 ppu2apu_irq_ack;
 	u32 reserved33[13];
 
 	u32 hpu2ppu_mb_offset;
 	u32 hpu2ppu_irq;
-	u32 hpu2ppu_irq_ack;
+	u32 ppu2hpu_irq_ack;
 	u32 reserved34[13];
 
 	u32 epu2ppu_mb_offset;
 	u32 epu2ppu_irq;
-	u32 epu2ppu_irq_ack;
+	u32 ppu2epu_irq_ack;
 	u32 reserved35[13];
 	u32 reserved36[8];
 
@@ -228,22 +228,22 @@ struct cx18_scb {
 	u32 reserved41[7];
 	u32 cpu2epu_mb_offset;
 	u32 cpu2epu_irq;
-	u32 cpu2epu_irq_ack;
+	u32 epu2cpu_irq_ack;
 	u32 reserved42[13];
 
 	u32 apu2epu_mb_offset;
 	u32 apu2epu_irq;
-	u32 apu2epu_irq_ack;
+	u32 epu2apu_irq_ack;
 	u32 reserved43[13];
 
 	u32 hpu2epu_mb_offset;
 	u32 hpu2epu_irq;
-	u32 hpu2epu_irq_ack;
+	u32 epu2hpu_irq_ack;
 	u32 reserved44[13];
 
 	u32 ppu2epu_mb_offset;
 	u32 ppu2epu_irq;
-	u32 ppu2epu_irq_ack;
+	u32 epu2ppu_irq_ack;
 	u32 reserved45[13];
 	u32 reserved46[8];
 
diff --git a/drivers/media/video/cx88/cx88-blackbird.c b/drivers/media/video/cx88/cx88-blackbird.c
index 078be6319556..d3ae5b4dfca7 100644
--- a/drivers/media/video/cx88/cx88-blackbird.c
+++ b/drivers/media/video/cx88/cx88-blackbird.c
@@ -1078,7 +1078,7 @@ static int mpeg_open(struct inode *inode, struct file *file)
 		}
 	}
 
-	if (blackbird_initialize_codec(dev) < 0) {
+	if (!atomic_read(&dev->core->mpeg_users) && blackbird_initialize_codec(dev) < 0) {
 		if (drv)
 			drv->request_release(drv);
 		unlock_kernel();
@@ -1109,6 +1109,8 @@ static int mpeg_open(struct inode *inode, struct file *file)
 			fh->mpegq.field);
 	unlock_kernel();
 
+	atomic_inc(&dev->core->mpeg_users);
+
 	return 0;
 }
 
@@ -1118,7 +1120,7 @@ static int mpeg_release(struct inode *inode, struct file *file)
 	struct cx8802_dev *dev = fh->dev;
 	struct cx8802_driver *drv = NULL;
 
-	if (dev->mpeg_active)
+	if (dev->mpeg_active && atomic_read(&dev->core->mpeg_users) == 1)
 		blackbird_stop_codec(dev);
 
 	cx8802_cancel_buffers(fh->dev);
@@ -1138,6 +1140,8 @@ static int mpeg_release(struct inode *inode, struct file *file)
 	if (drv)
 		drv->request_release(drv);
 
+	atomic_dec(&dev->core->mpeg_users);
+
 	return 0;
 }
 
@@ -1158,6 +1162,10 @@ static unsigned int
 mpeg_poll(struct file *file, struct poll_table_struct *wait)
 {
 	struct cx8802_fh *fh = file->private_data;
+	struct cx8802_dev *dev = fh->dev;
+
+	if (!dev->mpeg_active)
+		blackbird_start_codec(file, fh);
 
 	return videobuf_poll_stream(file, &fh->mpegq, wait);
 }
diff --git a/drivers/media/video/cx88/cx88-dvb.c b/drivers/media/video/cx88/cx88-dvb.c
index cf6c30d4e545..309ca5e68063 100644
--- a/drivers/media/video/cx88/cx88-dvb.c
+++ b/drivers/media/video/cx88/cx88-dvb.c
@@ -598,6 +598,11 @@ static int dvb_register(struct cx8802_dev *dev)
 	struct videobuf_dvb_frontend *fe0, *fe1 = NULL;
 	int mfe_shared = 0; /* bus not shared by default */
 
+	if (0 != core->i2c_rc) {
+		printk(KERN_ERR "%s/2: no i2c-bus available, cannot attach dvb drivers\n", core->name);
+		goto frontend_detach;
+	}
+
 	/* Get the first frontend */
 	fe0 = videobuf_dvb_get_frontend(&dev->frontends, 1);
 	if (!fe0)
diff --git a/drivers/media/video/cx88/cx88-mpeg.c b/drivers/media/video/cx88/cx88-mpeg.c
index a1c435b4b1cd..3ebdcd1d83f8 100644
--- a/drivers/media/video/cx88/cx88-mpeg.c
+++ b/drivers/media/video/cx88/cx88-mpeg.c
@@ -769,10 +769,6 @@ static int __devinit cx8802_probe(struct pci_dev *pci_dev,
 	struct cx8802_dev *dev;
 	struct cx88_core  *core;
 	int err;
-#if defined(CONFIG_VIDEO_CX88_DVB) || defined(CONFIG_VIDEO_CX88_DVB_MODULE)
-	struct videobuf_dvb_frontend *demod;
-	int i;
-#endif
 
 	/* general setup */
 	core = cx88_core_get(pci_dev);
@@ -803,15 +799,21 @@ static int __devinit cx8802_probe(struct pci_dev *pci_dev,
 	mutex_init(&dev->frontends.lock);
 	INIT_LIST_HEAD(&dev->frontends.felist);
 
-	if (core->board.num_frontends)
-		printk(KERN_INFO "%s() allocating %d frontend(s)\n", __func__, core->board.num_frontends);
-
-	for (i = 1; i <= core->board.num_frontends; i++) {
-		demod = videobuf_dvb_alloc_frontend(&dev->frontends, i);
-		if(demod == NULL) {
-			printk(KERN_ERR "%s() failed to alloc\n", __func__);
-			err = -ENOMEM;
-			goto fail_free;
+	if (core->board.num_frontends) {
+		struct videobuf_dvb_frontend *fe;
+		int i;
+
+		printk(KERN_INFO "%s() allocating %d frontend(s)\n", __func__,
+			core->board.num_frontends);
+		for (i = 1; i <= core->board.num_frontends; i++) {
+			fe = videobuf_dvb_alloc_frontend(&dev->frontends, i);
+			if(fe == NULL) {
+				printk(KERN_ERR "%s() failed to alloc\n",
+					__func__);
+				videobuf_dvb_dealloc_frontends(&dev->frontends);
+				err = -ENOMEM;
+				goto fail_free;
+			}
 		}
 	}
 #endif
diff --git a/drivers/media/video/cx88/cx88-video.c b/drivers/media/video/cx88/cx88-video.c
index 61265fd04d56..b96ce991d968 100644
--- a/drivers/media/video/cx88/cx88-video.c
+++ b/drivers/media/video/cx88/cx88-video.c
@@ -1216,8 +1216,12 @@ static int vidioc_streamon(struct file *file, void *priv, enum v4l2_buf_type i)
 	struct cx8800_fh  *fh   = priv;
 	struct cx8800_dev *dev  = fh->dev;
 
-	if (unlikely(fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE))
+	/* We should remember that this driver also supports teletext,  */
+	/* so we have to test if the v4l2_buf_type is VBI capture data. */
+	if (unlikely((fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) &&
+		     (fh->type != V4L2_BUF_TYPE_VBI_CAPTURE)))
 		return -EINVAL;
+
 	if (unlikely(i != fh->type))
 		return -EINVAL;
 
@@ -1232,8 +1236,10 @@ static int vidioc_streamoff(struct file *file, void *priv, enum v4l2_buf_type i)
 	struct cx8800_dev *dev  = fh->dev;
 	int               err, res;
 
-	if (fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
+	if ((fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) &&
+	    (fh->type != V4L2_BUF_TYPE_VBI_CAPTURE))
 		return -EINVAL;
+
 	if (i != fh->type)
 		return -EINVAL;
 
diff --git a/drivers/media/video/cx88/cx88.h b/drivers/media/video/cx88/cx88.h
index 76207c2856b7..f4240965be32 100644
--- a/drivers/media/video/cx88/cx88.h
+++ b/drivers/media/video/cx88/cx88.h
@@ -352,6 +352,7 @@ struct cx88_core {
 	/* various v4l controls */
 	u32                        freq;
 	atomic_t		   users;
+	atomic_t                   mpeg_users;
 
 	/* cx88-video needs to access cx8802 for hybrid tuner pll access. */
 	struct cx8802_dev          *dvbdev;
diff --git a/drivers/media/video/gspca/Kconfig b/drivers/media/video/gspca/Kconfig
index 4d0817471c9f..6b557c057fac 100644
--- a/drivers/media/video/gspca/Kconfig
+++ b/drivers/media/video/gspca/Kconfig
@@ -3,16 +3,16 @@ menuconfig USB_GSPCA
 	depends on VIDEO_V4L2
 	default m
 	---help---
-	Say Y here if you want to enable selecting webcams based
-	on the GSPCA framework.
+	  Say Y here if you want to enable selecting webcams based
+	  on the GSPCA framework.
 
-	See <file:Documentation/video4linux/gspca.txt> for more info.
+	  See <file:Documentation/video4linux/gspca.txt> for more info.
 
-	This driver uses the Video For Linux API. You must say Y or M to
-	"Video For Linux" to use this driver.
+	  This driver uses the Video For Linux API. You must say Y or M to
+	  "Video For Linux" to use this driver.
 
-	To compile this driver as modules, choose M here: the
-	modules will be called gspca_main.
+	  To compile this driver as modules, choose M here: the
+	  modules will be called gspca_main.
 
 
 if USB_GSPCA && VIDEO_V4L2
@@ -23,190 +23,190 @@ config USB_GSPCA_CONEX
 	tristate "Conexant Camera Driver"
 	depends on VIDEO_V4L2 && USB_GSPCA
 	help
-	Say Y here if you want support for cameras based on the Conexant chip.
+	  Say Y here if you want support for cameras based on the Conexant chip.
 
-	To compile this driver as a module, choose M here: the
-	module will be called gspca_conex.
+	  To compile this driver as a module, choose M here: the
+	  module will be called gspca_conex.
 
 config USB_GSPCA_ETOMS
 	tristate "Etoms USB Camera Driver"
 	depends on VIDEO_V4L2 && USB_GSPCA
 	help
-	Say Y here if you want support for cameras based on the Etoms chip.
+	  Say Y here if you want support for cameras based on the Etoms chip.
 
-	To compile this driver as a module, choose M here: the
-	module will be called gspca_etoms.
+	  To compile this driver as a module, choose M here: the
+	  module will be called gspca_etoms.
 
 config USB_GSPCA_FINEPIX
 	tristate "Fujifilm FinePix USB V4L2 driver"
 	depends on VIDEO_V4L2 && USB_GSPCA
 	help
-	Say Y here if you want support for cameras based on the FinePix chip.
+	  Say Y here if you want support for cameras based on the FinePix chip.
 
-	To compile this driver as a module, choose M here: the
-	module will be called gspca_finepix.
+	  To compile this driver as a module, choose M here: the
+	  module will be called gspca_finepix.
 
 config USB_GSPCA_MARS
 	tristate "Mars USB Camera Driver"
 	depends on VIDEO_V4L2 && USB_GSPCA
 	help
-	Say Y here if you want support for cameras based on the Mars chip.
+	  Say Y here if you want support for cameras based on the Mars chip.
 
-	To compile this driver as a module, choose M here: the
-	module will be called gspca_mars.
+	  To compile this driver as a module, choose M here: the
+	  module will be called gspca_mars.
 
 config USB_GSPCA_OV519
 	tristate "OV519 USB Camera Driver"
 	depends on VIDEO_V4L2 && USB_GSPCA
 	help
-	Say Y here if you want support for cameras based on the OV519 chip.
+	  Say Y here if you want support for cameras based on the OV519 chip.
 
-	To compile this driver as a module, choose M here: the
-	module will be called gspca_ov519.
+	  To compile this driver as a module, choose M here: the
+	  module will be called gspca_ov519.
 
 config USB_GSPCA_PAC207
 	tristate "Pixart PAC207 USB Camera Driver"
 	depends on VIDEO_V4L2 && USB_GSPCA
 	help
-	Say Y here if you want support for cameras based on the PAC207 chip.
+	  Say Y here if you want support for cameras based on the PAC207 chip.
 
-	To compile this driver as a module, choose M here: the
-	module will be called gspca_pac207.
+	  To compile this driver as a module, choose M here: the
+	  module will be called gspca_pac207.
 
 config USB_GSPCA_PAC7311
 	tristate "Pixart PAC7311 USB Camera Driver"
 	depends on VIDEO_V4L2 && USB_GSPCA
 	help
-	Say Y here if you want support for cameras based on the PAC7311 chip.
+	  Say Y here if you want support for cameras based on the PAC7311 chip.
 
-	To compile this driver as a module, choose M here: the
-	module will be called gspca_pac7311.
+	  To compile this driver as a module, choose M here: the
+	  module will be called gspca_pac7311.
 
 config USB_GSPCA_SONIXB
 	tristate "SN9C102 USB Camera Driver"
 	depends on VIDEO_V4L2 && USB_GSPCA
 	help
-	Say Y here if you want support for cameras based on the SONIXB chip.
+	  Say Y here if you want support for cameras based on the SONIXB chip.
 
-	To compile this driver as a module, choose M here: the
-	module will be called gspca_sonixb.
+	  To compile this driver as a module, choose M here: the
+	  module will be called gspca_sonixb.
 
 config USB_GSPCA_SONIXJ
 	tristate "SONIX JPEG USB Camera Driver"
 	depends on VIDEO_V4L2 && USB_GSPCA
 	help
-	Say Y here if you want support for cameras based on the SONIXJ chip.
+	  Say Y here if you want support for cameras based on the SONIXJ chip.
 
-	To compile this driver as a module, choose M here: the
-	module will be called gspca_sonixj
+	  To compile this driver as a module, choose M here: the
+	  module will be called gspca_sonixj
 
 config USB_GSPCA_SPCA500
 	tristate "SPCA500 USB Camera Driver"
 	depends on VIDEO_V4L2 && USB_GSPCA
 	help
-	Say Y here if you want support for cameras based on the SPCA500 chip.
+	  Say Y here if you want support for cameras based on the SPCA500 chip.
 
-	To compile this driver as a module, choose M here: the
-	module will be called gspca_spca500.
+	  To compile this driver as a module, choose M here: the
+	  module will be called gspca_spca500.
 
 config USB_GSPCA_SPCA501
 	tristate "SPCA501 USB Camera Driver"
 	depends on VIDEO_V4L2 && USB_GSPCA
 	help
-	Say Y here if you want support for cameras based on the SPCA501 chip.
+	  Say Y here if you want support for cameras based on the SPCA501 chip.
 
-	To compile this driver as a module, choose M here: the
-	module will be called gspca_spca501.
+	  To compile this driver as a module, choose M here: the
+	  module will be called gspca_spca501.
 
 config USB_GSPCA_SPCA505
 	tristate "SPCA505 USB Camera Driver"
 	depends on VIDEO_V4L2 && USB_GSPCA
 	help
-	Say Y here if you want support for cameras based on the SPCA505 chip.
+	  Say Y here if you want support for cameras based on the SPCA505 chip.
 
-	To compile this driver as a module, choose M here: the
-	module will be called gspca_spca505.
+	  To compile this driver as a module, choose M here: the
+	  module will be called gspca_spca505.
 
 config USB_GSPCA_SPCA506
 	tristate "SPCA506 USB Camera Driver"
 	depends on VIDEO_V4L2 && USB_GSPCA
 	help
-	Say Y here if you want support for cameras based on the SPCA506 chip.
+	  Say Y here if you want support for cameras based on the SPCA506 chip.
 
-	To compile this driver as a module, choose M here: the
-	module will be called gspca_spca506.
+	  To compile this driver as a module, choose M here: the
+	  module will be called gspca_spca506.
 
 config USB_GSPCA_SPCA508
 	tristate "SPCA508 USB Camera Driver"
 	depends on VIDEO_V4L2 && USB_GSPCA
 	help
-	Say Y here if you want support for cameras based on the SPCA508 chip.
+	  Say Y here if you want support for cameras based on the SPCA508 chip.
 
-	To compile this driver as a module, choose M here: the
-	module will be called gspca_spca508.
+	  To compile this driver as a module, choose M here: the
+	  module will be called gspca_spca508.
 
 config USB_GSPCA_SPCA561
 	tristate "SPCA561 USB Camera Driver"
 	depends on VIDEO_V4L2 && USB_GSPCA
 	help
-	Say Y here if you want support for cameras based on the SPCA561 chip.
+	  Say Y here if you want support for cameras based on the SPCA561 chip.
 
-	To compile this driver as a module, choose M here: the
-	module will be called gspca_spca561.
+	  To compile this driver as a module, choose M here: the
+	  module will be called gspca_spca561.
 
 config USB_GSPCA_STK014
 	tristate "Syntek DV4000 (STK014) USB Camera Driver"
 	depends on VIDEO_V4L2 && USB_GSPCA
 	help
-	Say Y here if you want support for cameras based on the STK014 chip.
+	  Say Y here if you want support for cameras based on the STK014 chip.
 
-	To compile this driver as a module, choose M here: the
-	module will be called gspca_stk014.
+	  To compile this driver as a module, choose M here: the
+	  module will be called gspca_stk014.
 
 config USB_GSPCA_SUNPLUS
 	tristate "SUNPLUS USB Camera Driver"
 	depends on VIDEO_V4L2 && USB_GSPCA
 	help
-	Say Y here if you want support for cameras based on the Sunplus
-	SPCA504(abc) SPCA533 SPCA536 chips.
+	  Say Y here if you want support for cameras based on the Sunplus
+	  SPCA504(abc) SPCA533 SPCA536 chips.
 
-	To compile this driver as a module, choose M here: the
-	module will be called gspca_spca5xx.
+	  To compile this driver as a module, choose M here: the
+	  module will be called gspca_spca5xx.
 
 config USB_GSPCA_T613
 	tristate "T613 (JPEG Compliance) USB Camera Driver"
 	depends on VIDEO_V4L2 && USB_GSPCA
 	help
-	Say Y here if you want support for cameras based on the T613 chip.
+	  Say Y here if you want support for cameras based on the T613 chip.
 
-	To compile this driver as a module, choose M here: the
-	module will be called gspca_t613.
+	  To compile this driver as a module, choose M here: the
+	  module will be called gspca_t613.
 
 config USB_GSPCA_TV8532
 	tristate "TV8532 USB Camera Driver"
 	depends on VIDEO_V4L2 && USB_GSPCA
 	help
-	Say Y here if you want support for cameras based on the TV8531 chip.
+	  Say Y here if you want support for cameras based on the TV8531 chip.
 
-	To compile this driver as a module, choose M here: the
-	module will be called gspca_tv8532.
+	  To compile this driver as a module, choose M here: the
+	  module will be called gspca_tv8532.
 
 config USB_GSPCA_VC032X
 	tristate "VC032X USB Camera Driver"
 	depends on VIDEO_V4L2 && USB_GSPCA
 	help
-	Say Y here if you want support for cameras based on the VC032X chip.
+	  Say Y here if you want support for cameras based on the VC032X chip.
 
-	To compile this driver as a module, choose M here: the
-	module will be called gspca_vc032x.
+	  To compile this driver as a module, choose M here: the
+	  module will be called gspca_vc032x.
 
 config USB_GSPCA_ZC3XX
-	tristate "VC3xx USB Camera Driver"
+	tristate "ZC3XX USB Camera Driver"
 	depends on VIDEO_V4L2 && USB_GSPCA
 	help
-	Say Y here if you want support for cameras based on the ZC3XX chip.
+	  Say Y here if you want support for cameras based on the ZC3XX chip.
 
-	To compile this driver as a module, choose M here: the
-	module will be called gspca_zc3xx.
+	  To compile this driver as a module, choose M here: the
+	  module will be called gspca_zc3xx.
 
 endif
diff --git a/drivers/media/video/gspca/zc3xx.c b/drivers/media/video/gspca/zc3xx.c
index d0a4451dc46f..8b3101d347c3 100644
--- a/drivers/media/video/gspca/zc3xx.c
+++ b/drivers/media/video/gspca/zc3xx.c
@@ -2266,7 +2266,7 @@ static const struct usb_action hdcs2020b_NoFliker[] = {
 	{}
 };
 
-static const struct usb_action hv7131bxx_Initial[] = {
+static const struct usb_action hv7131bxx_Initial[] = {		/* 320x240 */
 	{0xa0, 0x01, ZC3XX_R000_SYSTEMCONTROL},
 	{0xa0, 0x10, ZC3XX_R002_CLOCKSELECT},
 	{0xa0, 0x00, ZC3XX_R010_CMOSSENSORSELECT},
@@ -2290,7 +2290,7 @@ static const struct usb_action hv7131bxx_Initial[] = {
 	{0xaa, 0x14, 0x0001},
 	{0xaa, 0x15, 0x00e8},
 	{0xaa, 0x16, 0x0002},
-	{0xaa, 0x17, 0x0086},
+	{0xaa, 0x17, 0x0086},		/* 00,17,88,aa */
 	{0xaa, 0x31, 0x0038},
 	{0xaa, 0x32, 0x0038},
 	{0xaa, 0x33, 0x0038},
@@ -2309,7 +2309,7 @@ static const struct usb_action hv7131bxx_Initial[] = {
 	{0xa0, 0x13, ZC3XX_R1CB_SHARPNESS05},
 	{0xa0, 0x08, ZC3XX_R250_DEADPIXELSMODE},
 	{0xa0, 0x08, ZC3XX_R301_EEPROMACCESS},
-	{0xaa, 0x02, 0x0080},	/* {0xaa, 0x02, 0x0090}; */
+	{0xaa, 0x02, 0x0090},			/* 00,02,80,aa */
 	{0xa1, 0x01, 0x0002},
 	{0xa0, 0x00, ZC3XX_R092_I2CADDRESSSELECT},
 	{0xa0, 0x02, ZC3XX_R090_I2CCOMMAND},
@@ -2374,7 +2374,7 @@ static const struct usb_action hv7131bxx_Initial[] = {
 	{}
 };
 
-static const struct usb_action hv7131bxx_InitialScale[] = {
+static const struct usb_action hv7131bxx_InitialScale[] = {	/* 640x480*/
 	{0xa0, 0x01, ZC3XX_R000_SYSTEMCONTROL},
 	{0xa0, 0x00, ZC3XX_R002_CLOCKSELECT},
 	{0xa0, 0x00, ZC3XX_R010_CMOSSENSORSELECT},
@@ -6388,6 +6388,8 @@ static void setbrightness(struct gspca_dev *gspca_dev)
 /*fixme: is it really write to 011d and 018d for all other sensors? */
 	brightness = sd->brightness;
 	reg_w(gspca_dev->dev, brightness, 0x011d);
+	if (sd->sensor == SENSOR_HV7131B)
+		return;
 	if (brightness < 0x70)
 		brightness += 0x10;
 	else
@@ -6529,6 +6531,7 @@ static void setquality(struct gspca_dev *gspca_dev)
 
 	switch (sd->sensor) {
 	case SENSOR_GC0305:
+	case SENSOR_HV7131B:
 	case SENSOR_OV7620:
 	case SENSOR_PO2030:
 		return;
@@ -7209,7 +7212,6 @@ static int sd_start(struct gspca_dev *gspca_dev)
 	mode = gspca_dev->cam.cam_mode[(int) gspca_dev->curr_mode].priv;
 	zc3_init = init_tb[(int) sd->sensor][mode];
 	switch (sd->sensor) {
-	case SENSOR_HV7131B:
 	case SENSOR_HV7131C:
 		zcxx_probeSensor(gspca_dev);
 		break;
diff --git a/drivers/media/video/ivtv/Kconfig b/drivers/media/video/ivtv/Kconfig
index 0069898bddab..c46bfb1569e3 100644
--- a/drivers/media/video/ivtv/Kconfig
+++ b/drivers/media/video/ivtv/Kconfig
@@ -1,6 +1,6 @@
 config VIDEO_IVTV
 	tristate "Conexant cx23416/cx23415 MPEG encoder/decoder support"
-	depends on VIDEO_V4L1 && VIDEO_V4L2 && PCI && I2C && EXPERIMENTAL
+	depends on VIDEO_V4L2 && PCI && I2C
 	depends on INPUT   # due to VIDEO_IR
 	select I2C_ALGOBIT
 	select VIDEO_IR
@@ -12,7 +12,6 @@ config VIDEO_IVTV
 	select VIDEO_SAA711X
 	select VIDEO_SAA717X
 	select VIDEO_SAA7127
-	select VIDEO_TVAUDIO
 	select VIDEO_CS53L32A
 	select VIDEO_M52790
 	select VIDEO_WM8775
@@ -32,7 +31,7 @@ config VIDEO_IVTV
 
 config VIDEO_FB_IVTV
 	tristate "Conexant cx23415 framebuffer support"
-	depends on VIDEO_IVTV && FB && EXPERIMENTAL
+	depends on VIDEO_IVTV && FB
 	select FB_CFB_FILLRECT
 	select FB_CFB_COPYAREA
 	select FB_CFB_IMAGEBLIT
diff --git a/drivers/media/video/ivtv/ivtv-driver.c b/drivers/media/video/ivtv/ivtv-driver.c
index d36485023b68..b69cc1d55e5b 100644
--- a/drivers/media/video/ivtv/ivtv-driver.c
+++ b/drivers/media/video/ivtv/ivtv-driver.c
@@ -875,43 +875,43 @@ static void ivtv_load_and_init_modules(struct ivtv *itv)
 
 #ifdef MODULE
 	/* load modules */
-#ifndef CONFIG_MEDIA_TUNER
+#ifdef CONFIG_MEDIA_TUNER_MODULE
 	hw = ivtv_request_module(itv, hw, "tuner", IVTV_HW_TUNER);
 #endif
-#ifndef CONFIG_VIDEO_CX25840
+#ifdef CONFIG_VIDEO_CX25840_MODULE
 	hw = ivtv_request_module(itv, hw, "cx25840", IVTV_HW_CX25840);
 #endif
-#ifndef CONFIG_VIDEO_SAA711X
+#ifdef CONFIG_VIDEO_SAA711X_MODULE
 	hw = ivtv_request_module(itv, hw, "saa7115", IVTV_HW_SAA711X);
 #endif
-#ifndef CONFIG_VIDEO_SAA7127
+#ifdef CONFIG_VIDEO_SAA7127_MODULE
 	hw = ivtv_request_module(itv, hw, "saa7127", IVTV_HW_SAA7127);
 #endif
-#ifndef CONFIG_VIDEO_SAA717X
+#ifdef CONFIG_VIDEO_SAA717X_MODULE
 	hw = ivtv_request_module(itv, hw, "saa717x", IVTV_HW_SAA717X);
 #endif
-#ifndef CONFIG_VIDEO_UPD64031A
+#ifdef CONFIG_VIDEO_UPD64031A_MODULE
 	hw = ivtv_request_module(itv, hw, "upd64031a", IVTV_HW_UPD64031A);
 #endif
-#ifndef CONFIG_VIDEO_UPD64083
+#ifdef CONFIG_VIDEO_UPD64083_MODULE
 	hw = ivtv_request_module(itv, hw, "upd64083", IVTV_HW_UPD6408X);
 #endif
-#ifndef CONFIG_VIDEO_MSP3400
+#ifdef CONFIG_VIDEO_MSP3400_MODULE
 	hw = ivtv_request_module(itv, hw, "msp3400", IVTV_HW_MSP34XX);
 #endif
-#ifndef CONFIG_VIDEO_VP27SMPX
+#ifdef CONFIG_VIDEO_VP27SMPX_MODULE
 	hw = ivtv_request_module(itv, hw, "vp27smpx", IVTV_HW_VP27SMPX);
 #endif
-#ifndef CONFIG_VIDEO_WM8775
+#ifdef CONFIG_VIDEO_WM8775_MODULE
 	hw = ivtv_request_module(itv, hw, "wm8775", IVTV_HW_WM8775);
 #endif
-#ifndef CONFIG_VIDEO_WM8739
+#ifdef CONFIG_VIDEO_WM8739_MODULE
 	hw = ivtv_request_module(itv, hw, "wm8739", IVTV_HW_WM8739);
 #endif
-#ifndef CONFIG_VIDEO_CS53L32A
+#ifdef CONFIG_VIDEO_CS53L32A_MODULE
 	hw = ivtv_request_module(itv, hw, "cs53l32a", IVTV_HW_CS53L32A);
 #endif
-#ifndef CONFIG_VIDEO_M52790
+#ifdef CONFIG_VIDEO_M52790_MODULE
 	hw = ivtv_request_module(itv, hw, "m52790", IVTV_HW_M52790);
 #endif
 #endif
diff --git a/drivers/media/video/saa7110.c b/drivers/media/video/saa7110.c
index adf2ba79496a..37860698f782 100644
--- a/drivers/media/video/saa7110.c
+++ b/drivers/media/video/saa7110.c
@@ -47,7 +47,7 @@ module_param(debug, int, 0);
 MODULE_PARM_DESC(debug, "Debug level (0-1)");
 
 #define SAA7110_MAX_INPUT	9	/* 6 CVBS, 3 SVHS */
-#define SAA7110_MAX_OUTPUT	0	/* its a decoder only */
+#define SAA7110_MAX_OUTPUT	1	/* 1 YUV */
 
 #define SAA7110_NR_REG		0x35
 
@@ -327,7 +327,7 @@ saa7110_command (struct i2c_client *client,
 
 	case DECODER_SET_INPUT:
 		v = *(int *) arg;
-		if (v < 0 || v > SAA7110_MAX_INPUT) {
+		if (v < 0 || v >= SAA7110_MAX_INPUT) {
 			v4l_dbg(1, debug, client, "input=%d not available\n", v);
 			return -EINVAL;
 		}
diff --git a/drivers/media/video/saa7134/saa7134-core.c b/drivers/media/video/saa7134/saa7134-core.c
index 249184452949..dfbe08a9ad9b 100644
--- a/drivers/media/video/saa7134/saa7134-core.c
+++ b/drivers/media/video/saa7134/saa7134-core.c
@@ -941,7 +941,8 @@ static int __devinit saa7134_initdev(struct pci_dev *pci_dev,
 		       dev->name,(unsigned long long)pci_resource_start(pci_dev,0));
 		goto fail1;
 	}
-	dev->lmmio = ioremap(pci_resource_start(pci_dev,0), 0x1000);
+	dev->lmmio = ioremap(pci_resource_start(pci_dev, 0),
+			     pci_resource_len(pci_dev, 0));
 	dev->bmmio = (__u8 __iomem *)dev->lmmio;
 	if (NULL == dev->lmmio) {
 		err = -EIO;
diff --git a/drivers/media/video/tvaudio.c b/drivers/media/video/tvaudio.c
index b59e47272abf..3720f0e03a16 100644
--- a/drivers/media/video/tvaudio.c
+++ b/drivers/media/video/tvaudio.c
@@ -1,5 +1,5 @@
 /*
- * experimental driver for simple i2c audio chips.
+ * Driver for simple i2c audio chips.
  *
  * Copyright (c) 2000 Gerd Knorr
  * based on code by:
@@ -7,6 +7,10 @@
  *   Steve VanDeBogart (vandebo@uclink.berkeley.edu)
  *   Greg Alexander (galexand@acm.org)
  *
+ * Copyright(c) 2005-2008 Mauro Carvalho Chehab
+ *	- Some cleanups, code fixes, etc
+ *	- Convert it to V4L2 API
+ *
  * This code is placed under the terms of the GNU General Public License
  *
  * OPTIONS:
@@ -30,6 +34,7 @@
 
 #include <media/tvaudio.h>
 #include <media/v4l2-common.h>
+#include <media/v4l2-ioctl.h>
 #include <media/v4l2-chip-ident.h>
 #include <media/v4l2-i2c-drv-legacy.h>
 
@@ -58,7 +63,6 @@ typedef int  (*checkit)(struct CHIPSTATE*);
 typedef int  (*initialize)(struct CHIPSTATE*);
 typedef int  (*getmode)(struct CHIPSTATE*);
 typedef void (*setmode)(struct CHIPSTATE*, int mode);
-typedef void (*checkmode)(struct CHIPSTATE*);
 
 /* i2c command */
 typedef struct AUDIOCMD {
@@ -79,6 +83,7 @@ struct CHIPDESC {
 #define CHIP_HAS_VOLUME      1
 #define CHIP_HAS_BASSTREBLE  2
 #define CHIP_HAS_INPUTSEL    4
+#define CHIP_NEED_CHECKMODE  8
 
 	/* various i2c command sequences */
 	audiocmd   init;
@@ -96,23 +101,20 @@ struct CHIPDESC {
 	getmode  getmode;
 	setmode  setmode;
 
-	/* check / autoswitch audio after channel switches */
-	checkmode  checkmode;
-
 	/* input switch register + values for v4l inputs */
 	int  inputreg;
 	int  inputmap[4];
 	int  inputmute;
 	int  inputmask;
 };
-static struct CHIPDESC chiplist[];
 
 /* current state of the chip */
 struct CHIPSTATE {
 	struct i2c_client *c;
 
-	/* index into CHIPDESC array */
-	int type;
+	/* chip-specific description - should point to
+	   an entry at CHIPDESC table */
+	struct CHIPDESC *desc;
 
 	/* shadow register set */
 	audiocmd   shadow;
@@ -152,7 +154,7 @@ static int chip_write(struct CHIPSTATE *chip, int subaddr, int val)
 {
 	unsigned char buffer[2];
 
-	if (-1 == subaddr) {
+	if (subaddr < 0) {
 		v4l_dbg(1, debug, chip->c, "%s: chip_write: 0x%x\n",
 			chip->c->name, val);
 		chip->shadow.bytes[1] = val;
@@ -163,6 +165,13 @@ static int chip_write(struct CHIPSTATE *chip, int subaddr, int val)
 			return -1;
 		}
 	} else {
+		if (subaddr + 1 >= ARRAY_SIZE(chip->shadow.bytes)) {
+			v4l_info(chip->c,
+				"Tried to access a non-existent register: %d\n",
+				subaddr);
+			return -EINVAL;
+		}
+
 		v4l_dbg(1, debug, chip->c, "%s: chip_write: reg%d=0x%x\n",
 			chip->c->name, subaddr, val);
 		chip->shadow.bytes[subaddr+1] = val;
@@ -177,12 +186,20 @@ static int chip_write(struct CHIPSTATE *chip, int subaddr, int val)
 	return 0;
 }
 
-static int chip_write_masked(struct CHIPSTATE *chip, int subaddr, int val, int mask)
+static int chip_write_masked(struct CHIPSTATE *chip,
+			     int subaddr, int val, int mask)
 {
 	if (mask != 0) {
-		if (-1 == subaddr) {
+		if (subaddr < 0) {
 			val = (chip->shadow.bytes[1] & ~mask) | (val & mask);
 		} else {
+			if (subaddr + 1 >= ARRAY_SIZE(chip->shadow.bytes)) {
+				v4l_info(chip->c,
+					"Tried to access a non-existent register: %d\n",
+					subaddr);
+				return -EINVAL;
+			}
+
 			val = (chip->shadow.bytes[subaddr+1] & ~mask) | (val & mask);
 		}
 	}
@@ -228,6 +245,15 @@ static int chip_cmd(struct CHIPSTATE *chip, char *name, audiocmd *cmd)
 	if (0 == cmd->count)
 		return 0;
 
+	if (cmd->count + cmd->bytes[0] - 1 >= ARRAY_SIZE(chip->shadow.bytes)) {
+		v4l_info(chip->c,
+			 "Tried to access a non-existent register range: %d to %d\n",
+			 cmd->bytes[0] + 1, cmd->bytes[0] + cmd->count - 1);
+		return -EINVAL;
+	}
+
+	/* FIXME: it seems that the shadow bytes are wrong bellow !*/
+
 	/* update our shadow register set; print bytes if (debug > 0) */
 	v4l_dbg(1, debug, chip->c, "%s: chip_cmd(%s): reg=%d, data:",
 		chip->c->name, name,cmd->bytes[0]);
@@ -263,7 +289,8 @@ static void chip_thread_wake(unsigned long data)
 static int chip_thread(void *data)
 {
 	struct CHIPSTATE *chip = data;
-	struct CHIPDESC  *desc = chiplist + chip->type;
+	struct CHIPDESC  *desc = chip->desc;
+	int mode;
 
 	v4l_dbg(1, debug, chip->c, "%s: thread started\n", chip->c->name);
 	set_freezable();
@@ -282,7 +309,26 @@ static int chip_thread(void *data)
 			continue;
 
 		/* have a look what's going on */
-		desc->checkmode(chip);
+		mode = desc->getmode(chip);
+		if (mode == chip->prevmode)
+			continue;
+
+		/* chip detected a new audio mode - set it */
+		v4l_dbg(1, debug, chip->c, "%s: thread checkmode\n",
+			chip->c->name);
+
+		chip->prevmode = mode;
+
+		if (mode & V4L2_TUNER_MODE_STEREO)
+			desc->setmode(chip, V4L2_TUNER_MODE_STEREO);
+		if (mode & V4L2_TUNER_MODE_LANG1_LANG2)
+			desc->setmode(chip, V4L2_TUNER_MODE_STEREO);
+		else if (mode & V4L2_TUNER_MODE_LANG1)
+			desc->setmode(chip, V4L2_TUNER_MODE_LANG1);
+		else if (mode & V4L2_TUNER_MODE_LANG2)
+			desc->setmode(chip, V4L2_TUNER_MODE_LANG2);
+		else
+			desc->setmode(chip, V4L2_TUNER_MODE_MONO);
 
 		/* schedule next check */
 		mod_timer(&chip->wt, jiffies+msecs_to_jiffies(2000));
@@ -292,29 +338,6 @@ static int chip_thread(void *data)
 	return 0;
 }
 
-static void generic_checkmode(struct CHIPSTATE *chip)
-{
-	struct CHIPDESC  *desc = chiplist + chip->type;
-	int mode = desc->getmode(chip);
-
-	if (mode == chip->prevmode)
-	return;
-
-	v4l_dbg(1, debug, chip->c, "%s: thread checkmode\n", chip->c->name);
-	chip->prevmode = mode;
-
-	if (mode & V4L2_TUNER_MODE_STEREO)
-		desc->setmode(chip,V4L2_TUNER_MODE_STEREO);
-	if (mode & V4L2_TUNER_MODE_LANG1_LANG2)
-		desc->setmode(chip,V4L2_TUNER_MODE_STEREO);
-	else if (mode & V4L2_TUNER_MODE_LANG1)
-		desc->setmode(chip,V4L2_TUNER_MODE_LANG1);
-	else if (mode & V4L2_TUNER_MODE_LANG2)
-		desc->setmode(chip,V4L2_TUNER_MODE_LANG2);
-	else
-		desc->setmode(chip,V4L2_TUNER_MODE_MONO);
-}
-
 /* ---------------------------------------------------------------------- */
 /* audio chip descriptions - defines+functions for tda9840                */
 
@@ -777,7 +800,7 @@ static struct tda9874a_MODES {
 	char *name;
 	audiocmd cmd;
 } tda9874a_modelist[9] = {
-  {	"A2, B/G",
+  {	"A2, B/G", /* default */
 	{ 9, { TDA9874A_C1FRA, 0x72,0x95,0x55, 0x77,0xA0,0x00, 0x00,0x00 }} },
   {	"A2, M (Korea)",
 	{ 9, { TDA9874A_C1FRA, 0x5D,0xC0,0x00, 0x62,0x6A,0xAA, 0x20,0x22 }} },
@@ -791,7 +814,7 @@ static struct tda9874a_MODES {
 	{ 9, { TDA9874A_C1FRA, 0x7D,0x00,0x00, 0x88,0x8A,0xAA, 0x08,0x33 }} },
   {	"NICAM, B/G",
 	{ 9, { TDA9874A_C1FRA, 0x72,0x95,0x55, 0x79,0xEA,0xAA, 0x08,0x33 }} },
-  {	"NICAM, D/K", /* default */
+  {	"NICAM, D/K",
 	{ 9, { TDA9874A_C1FRA, 0x87,0x6A,0xAA, 0x79,0xEA,0xAA, 0x08,0x33 }} },
   {	"NICAM, L",
 	{ 9, { TDA9874A_C1FRA, 0x87,0x6A,0xAA, 0x79,0xEA,0xAA, 0x09,0x33 }} }
@@ -981,7 +1004,7 @@ static int tda9874a_initialize(struct CHIPSTATE *chip)
 {
 	if (tda9874a_SIF > 2)
 		tda9874a_SIF = 1;
-	if (tda9874a_STD > 8)
+	if (tda9874a_STD >= ARRAY_SIZE(tda9874a_modelist))
 		tda9874a_STD = 0;
 	if(tda9874a_AMSEL > 1)
 		tda9874a_AMSEL = 0;
@@ -1089,7 +1112,7 @@ static int tda8425_shift12(int val) { return (val >> 12) | 0xf0; }
 
 static int tda8425_initialize(struct CHIPSTATE *chip)
 {
-	struct CHIPDESC *desc = chiplist + chip->type;
+	struct CHIPDESC *desc = chip->desc;
 	int inputmap[4] = { /* tuner	*/ TDA8425_S1_CH2, /* radio  */ TDA8425_S1_CH1,
 			    /* extern	*/ TDA8425_S1_CH1, /* intern */ TDA8425_S1_OFF};
 
@@ -1259,27 +1282,28 @@ static struct CHIPDESC chiplist[] = {
 		.addr_lo    = I2C_ADDR_TDA9840 >> 1,
 		.addr_hi    = I2C_ADDR_TDA9840 >> 1,
 		.registers  = 5,
+		.flags      = CHIP_NEED_CHECKMODE,
 
+		/* callbacks */
 		.checkit    = tda9840_checkit,
 		.getmode    = tda9840_getmode,
 		.setmode    = tda9840_setmode,
-		.checkmode  = generic_checkmode,
 
 		.init       = { 2, { TDA9840_TEST, TDA9840_TEST_INT1SN
 				/* ,TDA9840_SW, TDA9840_MONO */} }
 	},
 	{
 		.name       = "tda9873h",
-		.checkit    = tda9873_checkit,
 		.insmodopt  = &tda9873,
 		.addr_lo    = I2C_ADDR_TDA985x_L >> 1,
 		.addr_hi    = I2C_ADDR_TDA985x_H >> 1,
 		.registers  = 3,
-		.flags      = CHIP_HAS_INPUTSEL,
+		.flags      = CHIP_HAS_INPUTSEL | CHIP_NEED_CHECKMODE,
 
+		/* callbacks */
+		.checkit    = tda9873_checkit,
 		.getmode    = tda9873_getmode,
 		.setmode    = tda9873_setmode,
-		.checkmode  = generic_checkmode,
 
 		.init       = { 4, { TDA9873_SW, 0xa4, 0x06, 0x03 } },
 		.inputreg   = TDA9873_SW,
@@ -1290,15 +1314,16 @@ static struct CHIPDESC chiplist[] = {
 	},
 	{
 		.name       = "tda9874h/a",
-		.checkit    = tda9874a_checkit,
-		.initialize = tda9874a_initialize,
 		.insmodopt  = &tda9874a,
 		.addr_lo    = I2C_ADDR_TDA9874 >> 1,
 		.addr_hi    = I2C_ADDR_TDA9874 >> 1,
+		.flags      = CHIP_NEED_CHECKMODE,
 
+		/* callbacks */
+		.initialize = tda9874a_initialize,
+		.checkit    = tda9874a_checkit,
 		.getmode    = tda9874a_getmode,
 		.setmode    = tda9874a_setmode,
-		.checkmode  = generic_checkmode,
 	},
 	{
 		.name       = "tda9850",
@@ -1324,10 +1349,11 @@ static struct CHIPDESC chiplist[] = {
 		.rightreg   = TDA9855_VR,
 		.bassreg    = TDA9855_BA,
 		.treblereg  = TDA9855_TR,
+
+		/* callbacks */
 		.volfunc    = tda9855_volume,
 		.bassfunc   = tda9855_bass,
 		.treblefunc = tda9855_treble,
-
 		.getmode    = tda985x_getmode,
 		.setmode    = tda985x_setmode,
 
@@ -1348,6 +1374,8 @@ static struct CHIPDESC chiplist[] = {
 		.rightreg   = TEA6300_VL,
 		.bassreg    = TEA6300_BA,
 		.treblereg  = TEA6300_TR,
+
+		/* callbacks */
 		.volfunc    = tea6300_shift10,
 		.bassfunc   = tea6300_shift12,
 		.treblefunc = tea6300_shift12,
@@ -1358,7 +1386,6 @@ static struct CHIPDESC chiplist[] = {
 	},
 	{
 		.name       = "tea6320",
-		.initialize = tea6320_initialize,
 		.insmodopt  = &tea6320,
 		.addr_lo    = I2C_ADDR_TEA6300 >> 1,
 		.addr_hi    = I2C_ADDR_TEA6300 >> 1,
@@ -1369,6 +1396,9 @@ static struct CHIPDESC chiplist[] = {
 		.rightreg   = TEA6320_V,
 		.bassreg    = TEA6320_BA,
 		.treblereg  = TEA6320_TR,
+
+		/* callbacks */
+		.initialize = tea6320_initialize,
 		.volfunc    = tea6320_volume,
 		.bassfunc   = tea6320_shift11,
 		.treblefunc = tea6320_shift11,
@@ -1401,16 +1431,18 @@ static struct CHIPDESC chiplist[] = {
 		.rightreg   = TDA8425_VR,
 		.bassreg    = TDA8425_BA,
 		.treblereg  = TDA8425_TR,
+
+		/* callbacks */
+		.initialize = tda8425_initialize,
 		.volfunc    = tda8425_shift10,
 		.bassfunc   = tda8425_shift12,
 		.treblefunc = tda8425_shift12,
+		.setmode    = tda8425_setmode,
 
 		.inputreg   = TDA8425_S1,
 		.inputmap   = { TDA8425_S1_CH1, TDA8425_S1_CH1, TDA8425_S1_CH1 },
 		.inputmute  = TDA8425_S1_OFF,
 
-		.setmode    = tda8425_setmode,
-		.initialize = tda8425_initialize,
 	},
 	{
 		.name       = "pic16c54 (PV951)",
@@ -1434,10 +1466,11 @@ static struct CHIPDESC chiplist[] = {
 		.addr_lo    = I2C_ADDR_TDA9840 >> 1,
 		.addr_hi    = I2C_ADDR_TDA9840 >> 1,
 		.registers  = 2,
+		.flags      = CHIP_NEED_CHECKMODE,
 
+		/* callbacks */
 		.getmode    = ta8874z_getmode,
 		.setmode    = ta8874z_setmode,
-		.checkmode  = generic_checkmode,
 
 		.init       = {2, { TA8874Z_MONO_SET, TA8874Z_SEPARATION_DEFAULT}},
 	},
@@ -1481,6 +1514,7 @@ static int chip_probe(struct i2c_client *client, const struct i2c_device_id *id)
 	}
 	if (desc->name == NULL) {
 		v4l_dbg(1, debug, client, "no matching chip description found\n");
+		kfree(chip);
 		return -EIO;
 	}
 	v4l_info(client, "%s found @ 0x%x (%s)\n", desc->name, client->addr<<1, client->adapter->name);
@@ -1494,7 +1528,7 @@ static int chip_probe(struct i2c_client *client, const struct i2c_device_id *id)
 	/* fill required data structures */
 	if (!id)
 		strlcpy(client->name, desc->name, I2C_NAME_SIZE);
-	chip->type = desc-chiplist;
+	chip->desc = desc;
 	chip->shadow.count = desc->registers+1;
 	chip->prevmode = -1;
 	chip->audmode = V4L2_TUNER_MODE_LANG1;
@@ -1506,20 +1540,49 @@ static int chip_probe(struct i2c_client *client, const struct i2c_device_id *id)
 		chip_cmd(chip,"init",&desc->init);
 
 	if (desc->flags & CHIP_HAS_VOLUME) {
-		chip->left   = desc->leftinit   ? desc->leftinit   : 65535;
-		chip->right  = desc->rightinit  ? desc->rightinit  : 65535;
-		chip_write(chip,desc->leftreg,desc->volfunc(chip->left));
-		chip_write(chip,desc->rightreg,desc->volfunc(chip->right));
+		if (!desc->volfunc) {
+			/* This shouldn't be happen. Warn user, but keep working
+			   without volume controls
+			 */
+			v4l_info(chip->c, "volume callback undefined!\n");
+			desc->flags &= ~CHIP_HAS_VOLUME;
+		} else {
+			chip->left  = desc->leftinit  ? desc->leftinit  : 65535;
+			chip->right = desc->rightinit ? desc->rightinit : 65535;
+			chip_write(chip, desc->leftreg,
+				   desc->volfunc(chip->left));
+			chip_write(chip, desc->rightreg,
+				   desc->volfunc(chip->right));
+		}
 	}
 	if (desc->flags & CHIP_HAS_BASSTREBLE) {
-		chip->treble = desc->trebleinit ? desc->trebleinit : 32768;
-		chip->bass   = desc->bassinit   ? desc->bassinit   : 32768;
-		chip_write(chip,desc->bassreg,desc->bassfunc(chip->bass));
-		chip_write(chip,desc->treblereg,desc->treblefunc(chip->treble));
+		if (!desc->bassfunc || !desc->treblefunc) {
+			/* This shouldn't be happen. Warn user, but keep working
+			   without bass/treble controls
+			 */
+			v4l_info(chip->c, "bass/treble callbacks undefined!\n");
+			desc->flags &= ~CHIP_HAS_BASSTREBLE;
+		} else {
+			chip->treble = desc->trebleinit ?
+						desc->trebleinit : 32768;
+			chip->bass   = desc->bassinit   ?
+						desc->bassinit   : 32768;
+			chip_write(chip, desc->bassreg,
+				   desc->bassfunc(chip->bass));
+			chip_write(chip, desc->treblereg,
+				   desc->treblefunc(chip->treble));
+		}
 	}
 
 	chip->thread = NULL;
-	if (desc->checkmode) {
+	if (desc->flags & CHIP_NEED_CHECKMODE) {
+		if (!desc->getmode || !desc->setmode) {
+			/* This shouldn't be happen. Warn user, but keep working
+			   without kthread
+			 */
+			v4l_info(chip->c, "set/get mode callbacks undefined!\n");
+			return 0;
+		}
 		/* start async thread */
 		init_timer(&chip->wt);
 		chip->wt.function = chip_thread_wake;
@@ -1552,7 +1615,7 @@ static int chip_remove(struct i2c_client *client)
 static int tvaudio_get_ctrl(struct CHIPSTATE *chip,
 			    struct v4l2_control *ctrl)
 {
-	struct CHIPDESC *desc = chiplist + chip->type;
+	struct CHIPDESC *desc = chip->desc;
 
 	switch (ctrl->id) {
 	case V4L2_CID_AUDIO_MUTE:
@@ -1576,13 +1639,13 @@ static int tvaudio_get_ctrl(struct CHIPSTATE *chip,
 		return 0;
 	}
 	case V4L2_CID_AUDIO_BASS:
-		if (desc->flags & CHIP_HAS_BASSTREBLE)
+		if (!(desc->flags & CHIP_HAS_BASSTREBLE))
 			break;
 		ctrl->value = chip->bass;
 		return 0;
 	case V4L2_CID_AUDIO_TREBLE:
-		if (desc->flags & CHIP_HAS_BASSTREBLE)
-			return -EINVAL;
+		if (!(desc->flags & CHIP_HAS_BASSTREBLE))
+			break;
 		ctrl->value = chip->treble;
 		return 0;
 	}
@@ -1592,7 +1655,7 @@ static int tvaudio_get_ctrl(struct CHIPSTATE *chip,
 static int tvaudio_set_ctrl(struct CHIPSTATE *chip,
 			    struct v4l2_control *ctrl)
 {
-	struct CHIPDESC *desc = chiplist + chip->type;
+	struct CHIPDESC *desc = chip->desc;
 
 	switch (ctrl->id) {
 	case V4L2_CID_AUDIO_MUTE:
@@ -1642,16 +1705,15 @@ static int tvaudio_set_ctrl(struct CHIPSTATE *chip,
 		return 0;
 	}
 	case V4L2_CID_AUDIO_BASS:
-		if (desc->flags & CHIP_HAS_BASSTREBLE)
+		if (!(desc->flags & CHIP_HAS_BASSTREBLE))
 			break;
 		chip->bass = ctrl->value;
 		chip_write(chip,desc->bassreg,desc->bassfunc(chip->bass));
 
 		return 0;
 	case V4L2_CID_AUDIO_TREBLE:
-		if (desc->flags & CHIP_HAS_BASSTREBLE)
-			return -EINVAL;
-
+		if (!(desc->flags & CHIP_HAS_BASSTREBLE))
+			break;
 		chip->treble = ctrl->value;
 		chip_write(chip,desc->treblereg,desc->treblefunc(chip->treble));
 
@@ -1668,9 +1730,12 @@ static int chip_command(struct i2c_client *client,
 			unsigned int cmd, void *arg)
 {
 	struct CHIPSTATE *chip = i2c_get_clientdata(client);
-	struct CHIPDESC  *desc = chiplist + chip->type;
+	struct CHIPDESC  *desc = chip->desc;
 
-	v4l_dbg(1, debug, chip->c, "%s: chip_command 0x%x\n", chip->c->name, cmd);
+	if (debug > 0) {
+		v4l_i2c_print_ioctl(chip->c, cmd);
+		printk("\n");
+	}
 
 	switch (cmd) {
 	case AUDC_SET_RADIO:
@@ -1695,7 +1760,7 @@ static int chip_command(struct i2c_client *client,
 				break;
 			case V4L2_CID_AUDIO_BASS:
 			case V4L2_CID_AUDIO_TREBLE:
-				if (desc->flags & CHIP_HAS_BASSTREBLE)
+				if (!(desc->flags & CHIP_HAS_BASSTREBLE))
 					return -EINVAL;
 				break;
 			default:
@@ -1792,12 +1857,20 @@ static int chip_command(struct i2c_client *client,
 		break;
 	case VIDIOC_S_FREQUENCY:
 		chip->mode = 0; /* automatic */
-		if (desc->checkmode && desc->setmode) {
+
+		/* For chips that provide getmode and setmode, and doesn't
+		   automatically follows the stereo carrier, a kthread is
+		   created to set the audio standard. In this case, when then
+		   the video channel is changed, tvaudio starts on MONO mode.
+		   After waiting for 2 seconds, the kernel thread is called,
+		   to follow whatever audio standard is pointed by the
+		   audio carrier.
+		 */
+		if (chip->thread) {
 			desc->setmode(chip,V4L2_TUNER_MODE_MONO);
 			if (chip->prevmode != V4L2_TUNER_MODE_MONO)
 				chip->prevmode = -1; /* reset previous mode */
 			mod_timer(&chip->wt, jiffies+msecs_to_jiffies(2000));
-			/* the thread will call checkmode() later */
 		}
 		break;
 
@@ -1836,9 +1909,3 @@ static struct v4l2_i2c_driver_data v4l2_i2c_data = {
 	.legacy_probe = chip_legacy_probe,
 	.id_table = chip_id,
 };
-
-/*
- * Local variables:
- * c-basic-offset: 8
- * End:
- */
diff --git a/drivers/media/video/usbvideo/ibmcam.c b/drivers/media/video/usbvideo/ibmcam.c
index 28421d386f1e..c710bcd1df48 100644
--- a/drivers/media/video/usbvideo/ibmcam.c
+++ b/drivers/media/video/usbvideo/ibmcam.c
@@ -3695,7 +3695,7 @@ static int ibmcam_probe(struct usb_interface *intf, const struct usb_device_id *
 	unsigned char video_ep = 0;
 
 	if (debug >= 1)
-		dev_info(&uvd->dev->dev, "ibmcam_probe(%p,%u.)\n", intf, ifnum);
+		dev_info(&dev->dev, "ibmcam_probe(%p,%u.)\n", intf, ifnum);
 
 	/* We don't handle multi-config cameras */
 	if (dev->descriptor.bNumConfigurations != 1)
@@ -3746,7 +3746,7 @@ static int ibmcam_probe(struct usb_interface *intf, const struct usb_device_id *
 			brand = "IBM PC Camera"; /* a.k.a. Xirlink C-It */
 			break;
 		}
-		dev_info(&uvd->dev->dev,
+		dev_info(&dev->dev,
 			 "%s USB camera found (model %d, rev. 0x%04x)\n",
 			 brand, model, le16_to_cpu(dev->descriptor.bcdDevice));
 	} while (0);
@@ -3754,7 +3754,7 @@ static int ibmcam_probe(struct usb_interface *intf, const struct usb_device_id *
 	/* Validate found interface: must have one ISO endpoint */
 	nas = intf->num_altsetting;
 	if (debug > 0)
-		dev_info(&uvd->dev->dev, "Number of alternate settings=%d.\n",
+		dev_info(&dev->dev, "Number of alternate settings=%d.\n",
 			 nas);
 	if (nas < 2) {
 		err("Too few alternate settings for this camera!");
@@ -3799,7 +3799,7 @@ static int ibmcam_probe(struct usb_interface *intf, const struct usb_device_id *
 				actInterface = i;
 				maxPS = le16_to_cpu(endpoint->wMaxPacketSize);
 				if (debug > 0)
-					dev_info(&uvd->dev->dev,
+					dev_info(&dev->dev,
 						 "Active setting=%d. "
 						 "maxPS=%d.\n", i, maxPS);
 			} else
@@ -3840,7 +3840,7 @@ static int ibmcam_probe(struct usb_interface *intf, const struct usb_device_id *
 			RESTRICT_TO_RANGE(framerate, 0, 5);
 			break;
 		default:
-			dev_info(&uvd->dev->dev, "IBM camera: using 320x240\n");
+			dev_info(&dev->dev, "IBM camera: using 320x240\n");
 			size = SIZE_320x240;
 			/* No break here */
 		case SIZE_320x240:
@@ -3869,7 +3869,7 @@ static int ibmcam_probe(struct usb_interface *intf, const struct usb_device_id *
 			canvasY = 120;
 			break;
 		default:
-			dev_info(&uvd->dev->dev, "IBM NetCamera: using 176x144\n");
+			dev_info(&dev->dev, "IBM NetCamera: using 176x144\n");
 			size = SIZE_176x144;
 			/* No break here */
 		case SIZE_176x144: