Merge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media

Pull media fixes from Mauro Carvalho Chehab:
 "For bug fixes, at soc_camera, si470x, uvcvideo, iguanaworks IR driver,
  radio_shark Kbuild fixes, and at the V4L2 core (radio fixes)."

* 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media:
  [media] media: soc_camera: don't clear pix->sizeimage in JPEG mode
  [media] media: mx2_camera: Fix clock handling for i.MX27
  [media] video: mx2_camera: Use clk_prepare_enable/clk_disable_unprepare
  [media] video: mx1_camera: Use clk_prepare_enable/clk_disable_unprepare
  [media] media: mx3_camera: buf_init() add buffer state check
  [media] radio-shark2: Only compile led support when CONFIG_LED_CLASS is set
  [media] radio-shark: Only compile led support when CONFIG_LED_CLASS is set
  [media] radio-shark*: Call cancel_work_sync from disconnect rather then release
  [media] radio-shark*: Remove work-around for dangling pointer in usb intfdata
  [media] Add USB dependency for IguanaWorks USB IR Transceiver
  [media] Add missing logging for rangelow/high of hwseek
  [media] VIDIOC_ENUM_FREQ_BANDS fix
  [media] mem2mem_testdev: fix querycap regression
  [media] si470x: v4l2-compliance fixes
  [media] DocBook: Remove a spurious character
  [media] uvcvideo: Reset the bytesused field when recycling an erroneous buffer

Documentation/DocBook/media/v4l/vidioc-g-tuner.xml

@@ -125,7 +125,7 @@ the structure refers to a radio tuner the
 <constant>V4L2_TUNER_CAP_NORM</constant> flags can't be used.</para>
 <para>If multiple frequency bands are supported, then
 <structfield>capability</structfield> is the union of all
-<structfield>capability></structfield> fields of each &v4l2-frequency-band;.
+<structfield>capability</structfield> fields of each &v4l2-frequency-band;.
 </para></entry>
 	  </row>
 	  <row>

drivers/media/radio/radio-shark.c

@@ -35,6 +35,11 @@
 #include <media/v4l2-device.h>
 #include <sound/tea575x-tuner.h>
 
+#if defined(CONFIG_LEDS_CLASS) || \
+    (defined(CONFIG_LEDS_CLASS_MODULE) && defined(CONFIG_RADIO_SHARK_MODULE))
+#define SHARK_USE_LEDS 1
+#endif
+
 /*
  * Version Information
  */
@@ -56,44 +61,18 @@ MODULE_LICENSE("GPL");
 
 enum { BLUE_LED, BLUE_PULSE_LED, RED_LED, NO_LEDS };
 
-static void shark_led_set_blue(struct led_classdev *led_cdev,
-			       enum led_brightness value);
-static void shark_led_set_blue_pulse(struct led_classdev *led_cdev,
-				     enum led_brightness value);
-static void shark_led_set_red(struct led_classdev *led_cdev,
-			      enum led_brightness value);
-
-static const struct led_classdev shark_led_templates[NO_LEDS] = {
-	[BLUE_LED] = {
-		.name		= "%s:blue:",
-		.brightness	= LED_OFF,
-		.max_brightness = 127,
-		.brightness_set = shark_led_set_blue,
-	},
-	[BLUE_PULSE_LED] = {
-		.name		= "%s:blue-pulse:",
-		.brightness	= LED_OFF,
-		.max_brightness = 255,
-		.brightness_set = shark_led_set_blue_pulse,
-	},
-	[RED_LED] = {
-		.name		= "%s:red:",
-		.brightness	= LED_OFF,
-		.max_brightness = 1,
-		.brightness_set = shark_led_set_red,
-	},
-};
-
 struct shark_device {
 	struct usb_device *usbdev;
 	struct v4l2_device v4l2_dev;
 	struct snd_tea575x tea;
 
+#ifdef SHARK_USE_LEDS
 	struct work_struct led_work;
 	struct led_classdev leds[NO_LEDS];
 	char led_names[NO_LEDS][32];
 	atomic_t brightness[NO_LEDS];
 	unsigned long brightness_new;
+#endif
 
 	u8 *transfer_buffer;
 	u32 last_val;
@@ -175,20 +154,13 @@ static struct snd_tea575x_ops shark_tea_ops = {
 	.read_val  = shark_read_val,
 };
 
+#ifdef SHARK_USE_LEDS
 static void shark_led_work(struct work_struct *work)
 {
 	struct shark_device *shark =
 		container_of(work, struct shark_device, led_work);
 	int i, res, brightness, actual_len;
 
-	/*
-	 * We use the v4l2_dev lock and registered bit to ensure the device
-	 * does not get unplugged and unreffed while we're running.
-	 */
-	mutex_lock(&shark->tea.mutex);
-	if (!video_is_registered(&shark->tea.vd))
-		goto leave;
-
 	for (i = 0; i < 3; i++) {
 		if (!test_and_clear_bit(i, &shark->brightness_new))
 			continue;
@@ -208,8 +180,6 @@ static void shark_led_work(struct work_struct *work)
 			v4l2_err(&shark->v4l2_dev, "set LED %s error: %d\n",
 				 shark->led_names[i], res);
 	}
-leave:
-	mutex_unlock(&shark->tea.mutex);
 }
 
 static void shark_led_set_blue(struct led_classdev *led_cdev,
@@ -245,19 +215,78 @@ static void shark_led_set_red(struct led_classdev *led_cdev,
 	schedule_work(&shark->led_work);
 }
 
+static const struct led_classdev shark_led_templates[NO_LEDS] = {
+	[BLUE_LED] = {
+		.name		= "%s:blue:",
+		.brightness	= LED_OFF,
+		.max_brightness = 127,
+		.brightness_set = shark_led_set_blue,
+	},
+	[BLUE_PULSE_LED] = {
+		.name		= "%s:blue-pulse:",
+		.brightness	= LED_OFF,
+		.max_brightness = 255,
+		.brightness_set = shark_led_set_blue_pulse,
+	},
+	[RED_LED] = {
+		.name		= "%s:red:",
+		.brightness	= LED_OFF,
+		.max_brightness = 1,
+		.brightness_set = shark_led_set_red,
+	},
+};
+
+static int shark_register_leds(struct shark_device *shark, struct device *dev)
+{
+	int i, retval;
+
+	INIT_WORK(&shark->led_work, shark_led_work);
+	for (i = 0; i < NO_LEDS; i++) {
+		shark->leds[i] = shark_led_templates[i];
+		snprintf(shark->led_names[i], sizeof(shark->led_names[0]),
+			 shark->leds[i].name, shark->v4l2_dev.name);
+		shark->leds[i].name = shark->led_names[i];
+		retval = led_classdev_register(dev, &shark->leds[i]);
+		if (retval) {
+			v4l2_err(&shark->v4l2_dev,
+				 "couldn't register led: %s\n",
+				 shark->led_names[i]);
+			return retval;
+		}
+	}
+	return 0;
+}
+
+static void shark_unregister_leds(struct shark_device *shark)
+{
+	int i;
+
+	for (i = 0; i < NO_LEDS; i++)
+		led_classdev_unregister(&shark->leds[i]);
+
+	cancel_work_sync(&shark->led_work);
+}
+#else
+static int shark_register_leds(struct shark_device *shark, struct device *dev)
+{
+	v4l2_warn(&shark->v4l2_dev,
+		  "CONFIG_LED_CLASS not enabled, LED support disabled\n");
+	return 0;
+}
+static inline void shark_unregister_leds(struct shark_device *shark) { }
+#endif
+
 static void usb_shark_disconnect(struct usb_interface *intf)
 {
 	struct v4l2_device *v4l2_dev = usb_get_intfdata(intf);
 	struct shark_device *shark = v4l2_dev_to_shark(v4l2_dev);
-	int i;
 
 	mutex_lock(&shark->tea.mutex);
 	v4l2_device_disconnect(&shark->v4l2_dev);
 	snd_tea575x_exit(&shark->tea);
 	mutex_unlock(&shark->tea.mutex);
 
-	for (i = 0; i < NO_LEDS; i++)
-		led_classdev_unregister(&shark->leds[i]);
+	shark_unregister_leds(shark);
 
 	v4l2_device_put(&shark->v4l2_dev);
 }
@@ -266,7 +295,6 @@ static void usb_shark_release(struct v4l2_device *v4l2_dev)
 {
 	struct shark_device *shark = v4l2_dev_to_shark(v4l2_dev);
 
-	cancel_work_sync(&shark->led_work);
 	v4l2_device_unregister(&shark->v4l2_dev);
 	kfree(shark->transfer_buffer);
 	kfree(shark);
@@ -276,7 +304,7 @@ static int usb_shark_probe(struct usb_interface *intf,
 			   const struct usb_device_id *id)
 {
 	struct shark_device *shark;
-	int i, retval = -ENOMEM;
+	int retval = -ENOMEM;
 
 	shark = kzalloc(sizeof(struct shark_device), GFP_KERNEL);
 	if (!shark)
@@ -286,17 +314,13 @@ static int usb_shark_probe(struct usb_interface *intf,
 	if (!shark->transfer_buffer)
 		goto err_alloc_buffer;
 
-	/*
-	 * Work around a bug in usbhid/hid-core.c, where it leaves a dangling
-	 * pointer in intfdata causing v4l2-device.c to not set it. Which
-	 * results in usb_shark_disconnect() referencing the dangling pointer
-	 *
-	 * REMOVE (as soon as the above bug is fixed, patch submitted)
-	 */
-	usb_set_intfdata(intf, NULL);
+	v4l2_device_set_name(&shark->v4l2_dev, DRV_NAME, &shark_instance);
+
+	retval = shark_register_leds(shark, &intf->dev);
+	if (retval)
+		goto err_reg_leds;
 
 	shark->v4l2_dev.release = usb_shark_release;
-	v4l2_device_set_name(&shark->v4l2_dev, DRV_NAME, &shark_instance);
 	retval = v4l2_device_register(&intf->dev, &shark->v4l2_dev);
 	if (retval) {
 		v4l2_err(&shark->v4l2_dev, "couldn't register v4l2_device\n");
@@ -320,32 +344,13 @@ static int usb_shark_probe(struct usb_interface *intf,
 		goto err_init_tea;
 	}
 
-	INIT_WORK(&shark->led_work, shark_led_work);
-	for (i = 0; i < NO_LEDS; i++) {
-		shark->leds[i] = shark_led_templates[i];
-		snprintf(shark->led_names[i], sizeof(shark->led_names[0]),
-			 shark->leds[i].name, shark->v4l2_dev.name);
-		shark->leds[i].name = shark->led_names[i];
-		/*
-		 * We don't fail the probe if we fail to register the leds,
-		 * because once we've called snd_tea575x_init, the /dev/radio0
-		 * node may be opened from userspace holding a reference to us!
-		 *
-		 * Note we cannot register the leds first instead as
-		 * shark_led_work depends on the v4l2 mutex and registered bit.
-		 */
-		retval = led_classdev_register(&intf->dev, &shark->leds[i]);
-		if (retval)
-			v4l2_err(&shark->v4l2_dev,
-				 "couldn't register led: %s\n",
-				 shark->led_names[i]);
-	}
-
 	return 0;
 
 err_init_tea:
 	v4l2_device_unregister(&shark->v4l2_dev);
 err_reg_dev:
+	shark_unregister_leds(shark);
+err_reg_leds:
 	kfree(shark->transfer_buffer);
 err_alloc_buffer:
 	kfree(shark);

drivers/media/radio/radio-shark2.c

@@ -35,6 +35,11 @@
 #include <media/v4l2-device.h>
 #include "radio-tea5777.h"
 
+#if defined(CONFIG_LEDS_CLASS) || \
+    (defined(CONFIG_LEDS_CLASS_MODULE) && defined(CONFIG_RADIO_SHARK2_MODULE))
+#define SHARK_USE_LEDS 1
+#endif
+
 MODULE_AUTHOR("Hans de Goede <hdegoede@redhat.com>");
 MODULE_DESCRIPTION("Griffin radioSHARK2, USB radio receiver driver");
 MODULE_LICENSE("GPL");
@@ -43,7 +48,6 @@ static int debug;
 module_param(debug, int, 0);
 MODULE_PARM_DESC(debug, "Debug level (0-1)");
 
-
 #define SHARK_IN_EP		0x83
 #define SHARK_OUT_EP		0x05
 
@@ -54,36 +58,18 @@ MODULE_PARM_DESC(debug, "Debug level (0-1)");
 
 enum { BLUE_LED, RED_LED, NO_LEDS };
 
-static void shark_led_set_blue(struct led_classdev *led_cdev,
-			       enum led_brightness value);
-static void shark_led_set_red(struct led_classdev *led_cdev,
-			      enum led_brightness value);
-
-static const struct led_classdev shark_led_templates[NO_LEDS] = {
-	[BLUE_LED] = {
-		.name		= "%s:blue:",
-		.brightness	= LED_OFF,
-		.max_brightness = 127,
-		.brightness_set = shark_led_set_blue,
-	},
-	[RED_LED] = {
-		.name		= "%s:red:",
-		.brightness	= LED_OFF,
-		.max_brightness = 1,
-		.brightness_set = shark_led_set_red,
-	},
-};
-
 struct shark_device {
 	struct usb_device *usbdev;
 	struct v4l2_device v4l2_dev;
 	struct radio_tea5777 tea;
 
+#ifdef SHARK_USE_LEDS
 	struct work_struct led_work;
 	struct led_classdev leds[NO_LEDS];
 	char led_names[NO_LEDS][32];
 	atomic_t brightness[NO_LEDS];
 	unsigned long brightness_new;
+#endif
 
 	u8 *transfer_buffer;
 };
@@ -161,18 +147,12 @@ static struct radio_tea5777_ops shark_tea_ops = {
 	.read_reg  = shark_read_reg,
 };
 
+#ifdef SHARK_USE_LEDS
 static void shark_led_work(struct work_struct *work)
 {
 	struct shark_device *shark =
 		container_of(work, struct shark_device, led_work);
 	int i, res, brightness, actual_len;
-	/*
-	 * We use the v4l2_dev lock and registered bit to ensure the device
-	 * does not get unplugged and unreffed while we're running.
-	 */
-	mutex_lock(&shark->tea.mutex);
-	if (!video_is_registered(&shark->tea.vd))
-		goto leave;
 
 	for (i = 0; i < 2; i++) {
 		if (!test_and_clear_bit(i, &shark->brightness_new))
@@ -191,8 +171,6 @@ static void shark_led_work(struct work_struct *work)
 			v4l2_err(&shark->v4l2_dev, "set LED %s error: %d\n",
 				 shark->led_names[i], res);
 	}
-leave:
-	mutex_unlock(&shark->tea.mutex);
 }
 
 static void shark_led_set_blue(struct led_classdev *led_cdev,
@@ -217,19 +195,72 @@ static void shark_led_set_red(struct led_classdev *led_cdev,
 	schedule_work(&shark->led_work);
 }
 
+static const struct led_classdev shark_led_templates[NO_LEDS] = {
+	[BLUE_LED] = {
+		.name		= "%s:blue:",
+		.brightness	= LED_OFF,
+		.max_brightness = 127,
+		.brightness_set = shark_led_set_blue,
+	},
+	[RED_LED] = {
+		.name		= "%s:red:",
+		.brightness	= LED_OFF,
+		.max_brightness = 1,
+		.brightness_set = shark_led_set_red,
+	},
+};
+
+static int shark_register_leds(struct shark_device *shark, struct device *dev)
+{
+	int i, retval;
+
+	INIT_WORK(&shark->led_work, shark_led_work);
+	for (i = 0; i < NO_LEDS; i++) {
+		shark->leds[i] = shark_led_templates[i];
+		snprintf(shark->led_names[i], sizeof(shark->led_names[0]),
+			 shark->leds[i].name, shark->v4l2_dev.name);
+		shark->leds[i].name = shark->led_names[i];
+		retval = led_classdev_register(dev, &shark->leds[i]);
+		if (retval) {
+			v4l2_err(&shark->v4l2_dev,
+				 "couldn't register led: %s\n",
+				 shark->led_names[i]);
+			return retval;
+		}
+	}
+	return 0;
+}
+
+static void shark_unregister_leds(struct shark_device *shark)
+{
+	int i;
+
+	for (i = 0; i < NO_LEDS; i++)
+		led_classdev_unregister(&shark->leds[i]);
+
+	cancel_work_sync(&shark->led_work);
+}
+#else
+static int shark_register_leds(struct shark_device *shark, struct device *dev)
+{
+	v4l2_warn(&shark->v4l2_dev,
+		  "CONFIG_LED_CLASS not enabled, LED support disabled\n");
+	return 0;
+}
+static inline void shark_unregister_leds(struct shark_device *shark) { }
+#endif
+
 static void usb_shark_disconnect(struct usb_interface *intf)
 {
 	struct v4l2_device *v4l2_dev = usb_get_intfdata(intf);
 	struct shark_device *shark = v4l2_dev_to_shark(v4l2_dev);
-	int i;
 
 	mutex_lock(&shark->tea.mutex);
 	v4l2_device_disconnect(&shark->v4l2_dev);
 	radio_tea5777_exit(&shark->tea);
 	mutex_unlock(&shark->tea.mutex);
 
-	for (i = 0; i < NO_LEDS; i++)
-		led_classdev_unregister(&shark->leds[i]);
+	shark_unregister_leds(shark);
 
 	v4l2_device_put(&shark->v4l2_dev);
 }
@@ -238,7 +269,6 @@ static void usb_shark_release(struct v4l2_device *v4l2_dev)
 {
 	struct shark_device *shark = v4l2_dev_to_shark(v4l2_dev);
 
-	cancel_work_sync(&shark->led_work);
 	v4l2_device_unregister(&shark->v4l2_dev);
 	kfree(shark->transfer_buffer);
 	kfree(shark);
@@ -248,7 +278,7 @@ static int usb_shark_probe(struct usb_interface *intf,
 			   const struct usb_device_id *id)
 {
 	struct shark_device *shark;
-	int i, retval = -ENOMEM;
+	int retval = -ENOMEM;
 
 	shark = kzalloc(sizeof(struct shark_device), GFP_KERNEL);
 	if (!shark)
@@ -258,17 +288,13 @@ static int usb_shark_probe(struct usb_interface *intf,
 	if (!shark->transfer_buffer)
 		goto err_alloc_buffer;
 
-	/*
-	 * Work around a bug in usbhid/hid-core.c, where it leaves a dangling
-	 * pointer in intfdata causing v4l2-device.c to not set it. Which
-	 * results in usb_shark_disconnect() referencing the dangling pointer
-	 *
-	 * REMOVE (as soon as the above bug is fixed, patch submitted)
-	 */
-	usb_set_intfdata(intf, NULL);
+	v4l2_device_set_name(&shark->v4l2_dev, DRV_NAME, &shark_instance);
+
+	retval = shark_register_leds(shark, &intf->dev);
+	if (retval)
+		goto err_reg_leds;
 
 	shark->v4l2_dev.release = usb_shark_release;
-	v4l2_device_set_name(&shark->v4l2_dev, DRV_NAME, &shark_instance);
 	retval = v4l2_device_register(&intf->dev, &shark->v4l2_dev);
 	if (retval) {
 		v4l2_err(&shark->v4l2_dev, "couldn't register v4l2_device\n");
@@ -292,32 +318,13 @@ static int usb_shark_probe(struct usb_interface *intf,
 		goto err_init_tea;
 	}
 
-	INIT_WORK(&shark->led_work, shark_led_work);
-	for (i = 0; i < NO_LEDS; i++) {
-		shark->leds[i] = shark_led_templates[i];
-		snprintf(shark->led_names[i], sizeof(shark->led_names[0]),
-			 shark->leds[i].name, shark->v4l2_dev.name);
-		shark->leds[i].name = shark->led_names[i];
-		/*
-		 * We don't fail the probe if we fail to register the leds,
-		 * because once we've called radio_tea5777_init, the /dev/radio0
-		 * node may be opened from userspace holding a reference to us!
-		 *
-		 * Note we cannot register the leds first instead as
-		 * shark_led_work depends on the v4l2 mutex and registered bit.
-		 */
-		retval = led_classdev_register(&intf->dev, &shark->leds[i]);
-		if (retval)
-			v4l2_err(&shark->v4l2_dev,
-				 "couldn't register led: %s\n",
-				 shark->led_names[i]);
-	}
-
 	return 0;
 
 err_init_tea:
 	v4l2_device_unregister(&shark->v4l2_dev);
 err_reg_dev:
+	shark_unregister_leds(shark);
+err_reg_leds:
 	kfree(shark->transfer_buffer);
 err_alloc_buffer:
 	kfree(shark);

drivers/media/radio/si470x/radio-si470x-common.c

@@ -151,6 +151,7 @@ static const struct v4l2_frequency_band bands[] = {
 		.index = 0,
 		.capability = V4L2_TUNER_CAP_LOW | V4L2_TUNER_CAP_STEREO |
 			    V4L2_TUNER_CAP_RDS | V4L2_TUNER_CAP_RDS_BLOCK_IO |
+			    V4L2_TUNER_CAP_FREQ_BANDS |
 			    V4L2_TUNER_CAP_HWSEEK_BOUNDED |
 			    V4L2_TUNER_CAP_HWSEEK_WRAP,
 		.rangelow   =  87500 * 16,
@@ -162,6 +163,7 @@ static const struct v4l2_frequency_band bands[] = {
 		.index = 1,
 		.capability = V4L2_TUNER_CAP_LOW | V4L2_TUNER_CAP_STEREO |
 			    V4L2_TUNER_CAP_RDS | V4L2_TUNER_CAP_RDS_BLOCK_IO |
+			    V4L2_TUNER_CAP_FREQ_BANDS |
 			    V4L2_TUNER_CAP_HWSEEK_BOUNDED |
 			    V4L2_TUNER_CAP_HWSEEK_WRAP,
 		.rangelow   =  76000 * 16,
@@ -173,6 +175,7 @@ static const struct v4l2_frequency_band bands[] = {
 		.index = 2,
 		.capability = V4L2_TUNER_CAP_LOW | V4L2_TUNER_CAP_STEREO |
 			    V4L2_TUNER_CAP_RDS | V4L2_TUNER_CAP_RDS_BLOCK_IO |
+			    V4L2_TUNER_CAP_FREQ_BANDS |
 			    V4L2_TUNER_CAP_HWSEEK_BOUNDED |
 			    V4L2_TUNER_CAP_HWSEEK_WRAP,
 		.rangelow   =  76000 * 16,

drivers/media/radio/si470x/radio-si470x-i2c.c

@@ -225,8 +225,9 @@ int si470x_vidioc_querycap(struct file *file, void *priv,
 {
 	strlcpy(capability->driver, DRIVER_NAME, sizeof(capability->driver));
 	strlcpy(capability->card, DRIVER_CARD, sizeof(capability->card));
-	capability->capabilities = V4L2_CAP_HW_FREQ_SEEK |
-		V4L2_CAP_TUNER | V4L2_CAP_RADIO;
+	capability->device_caps = V4L2_CAP_HW_FREQ_SEEK | V4L2_CAP_READWRITE |
+		V4L2_CAP_TUNER | V4L2_CAP_RADIO | V4L2_CAP_RDS_CAPTURE;
+	capability->capabilities = capability->device_caps | V4L2_CAP_DEVICE_CAPS;
 
 	return 0;
 }

drivers/media/radio/si470x/radio-si470x-usb.c

@@ -531,7 +531,7 @@ int si470x_vidioc_querycap(struct file *file, void *priv,
 	strlcpy(capability->card, DRIVER_CARD, sizeof(capability->card));
 	usb_make_path(radio->usbdev, capability->bus_info,
 			sizeof(capability->bus_info));
-	capability->device_caps = V4L2_CAP_HW_FREQ_SEEK |
+	capability->device_caps = V4L2_CAP_HW_FREQ_SEEK | V4L2_CAP_READWRITE |
 		V4L2_CAP_TUNER | V4L2_CAP_RADIO | V4L2_CAP_RDS_CAPTURE;
 	capability->capabilities = capability->device_caps | V4L2_CAP_DEVICE_CAPS;
 	return 0;

drivers/media/rc/Kconfig

@@ -261,6 +261,7 @@ config IR_WINBOND_CIR
 
 config IR_IGUANA
 	tristate "IguanaWorks USB IR Transceiver"
+	depends on USB_ARCH_HAS_HCD
 	depends on RC_CORE
 	select USB
 	---help---

drivers/media/video/mem2mem_testdev.c

@@ -431,7 +431,7 @@ static int vidioc_querycap(struct file *file, void *priv,
 	strncpy(cap->driver, MEM2MEM_NAME, sizeof(cap->driver) - 1);
 	strncpy(cap->card, MEM2MEM_NAME, sizeof(cap->card) - 1);
 	strlcpy(cap->bus_info, MEM2MEM_NAME, sizeof(cap->bus_info));
-	cap->capabilities = V4L2_CAP_VIDEO_M2M | V4L2_CAP_STREAMING;
+	cap->device_caps = V4L2_CAP_VIDEO_M2M | V4L2_CAP_STREAMING;
 	cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS;
 	return 0;
 }

drivers/media/video/mx1_camera.c

@@ -403,7 +403,7 @@ static void mx1_camera_activate(struct mx1_camera_dev *pcdev)
 
 	dev_dbg(pcdev->icd->parent, "Activate device\n");
 
-	clk_enable(pcdev->clk);
+	clk_prepare_enable(pcdev->clk);
 
 	/* enable CSI before doing anything else */
 	__raw_writel(csicr1, pcdev->base + CSICR1);
@@ -422,7 +422,7 @@ static void mx1_camera_deactivate(struct mx1_camera_dev *pcdev)
 	/* Disable all CSI interface */
 	__raw_writel(0x00, pcdev->base + CSICR1);
 
-	clk_disable(pcdev->clk);
+	clk_disable_unprepare(pcdev->clk);
 }
 
 /*

drivers/media/video/mx2_camera.c

@@ -272,7 +272,7 @@ struct mx2_camera_dev {
 	struct device		*dev;
 	struct soc_camera_host	soc_host;
 	struct soc_camera_device *icd;
-	struct clk		*clk_csi, *clk_emma;
+	struct clk		*clk_csi, *clk_emma_ahb, *clk_emma_ipg;
 
 	unsigned int		irq_csi, irq_emma;
 	void __iomem		*base_csi, *base_emma;
@@ -407,7 +407,7 @@ static void mx2_camera_deactivate(struct mx2_camera_dev *pcdev)
 {
 	unsigned long flags;
 
-	clk_disable(pcdev->clk_csi);
+	clk_disable_unprepare(pcdev->clk_csi);
 	writel(0, pcdev->base_csi + CSICR1);
 	if (cpu_is_mx27()) {
 		writel(0, pcdev->base_emma + PRP_CNTL);
@@ -435,7 +435,7 @@ static int mx2_camera_add_device(struct soc_camera_device *icd)
 	if (pcdev->icd)
 		return -EBUSY;
 
-	ret = clk_enable(pcdev->clk_csi);
+	ret = clk_prepare_enable(pcdev->clk_csi);
 	if (ret < 0)
 		return ret;
 
@@ -1633,23 +1633,34 @@ static int __devinit mx27_camera_emma_init(struct mx2_camera_dev *pcdev)
 		goto exit_iounmap;
 	}
 
-	pcdev->clk_emma = clk_get(NULL, "emma");
-	if (IS_ERR(pcdev->clk_emma)) {
-		err = PTR_ERR(pcdev->clk_emma);
+	pcdev->clk_emma_ipg = clk_get(pcdev->dev, "emma-ipg");
+	if (IS_ERR(pcdev->clk_emma_ipg)) {
+		err = PTR_ERR(pcdev->clk_emma_ipg);
 		goto exit_free_irq;
 	}
 
-	clk_enable(pcdev->clk_emma);
+	clk_prepare_enable(pcdev->clk_emma_ipg);
+
+	pcdev->clk_emma_ahb = clk_get(pcdev->dev, "emma-ahb");
+	if (IS_ERR(pcdev->clk_emma_ahb)) {
+		err = PTR_ERR(pcdev->clk_emma_ahb);
+		goto exit_clk_emma_ipg_put;
+	}
+
+	clk_prepare_enable(pcdev->clk_emma_ahb);
 
 	err = mx27_camera_emma_prp_reset(pcdev);
 	if (err)
-		goto exit_clk_emma_put;
+		goto exit_clk_emma_ahb_put;
 
 	return err;
 
-exit_clk_emma_put:
-	clk_disable(pcdev->clk_emma);
-	clk_put(pcdev->clk_emma);
+exit_clk_emma_ahb_put:
+	clk_disable_unprepare(pcdev->clk_emma_ahb);
+	clk_put(pcdev->clk_emma_ahb);
+exit_clk_emma_ipg_put:
+	clk_disable_unprepare(pcdev->clk_emma_ipg);
+	clk_put(pcdev->clk_emma_ipg);
 exit_free_irq:
 	free_irq(pcdev->irq_emma, pcdev);
 exit_iounmap:
@@ -1685,7 +1696,7 @@ static int __devinit mx2_camera_probe(struct platform_device *pdev)
 		goto exit;
 	}
 
-	pcdev->clk_csi = clk_get(&pdev->dev, NULL);
+	pcdev->clk_csi = clk_get(&pdev->dev, "ahb");
 	if (IS_ERR(pcdev->clk_csi)) {
 		dev_err(&pdev->dev, "Could not get csi clock\n");
 		err = PTR_ERR(pcdev->clk_csi);
@@ -1785,8 +1796,10 @@ static int __devinit mx2_camera_probe(struct platform_device *pdev)
 eallocctx:
 	if (cpu_is_mx27()) {
 		free_irq(pcdev->irq_emma, pcdev);
-		clk_disable(pcdev->clk_emma);
-		clk_put(pcdev->clk_emma);
+		clk_disable_unprepare(pcdev->clk_emma_ipg);
+		clk_put(pcdev->clk_emma_ipg);
+		clk_disable_unprepare(pcdev->clk_emma_ahb);
+		clk_put(pcdev->clk_emma_ahb);
 		iounmap(pcdev->base_emma);
 		release_mem_region(pcdev->res_emma->start, resource_size(pcdev->res_emma));
 	}
@@ -1825,8 +1838,10 @@ static int __devexit mx2_camera_remove(struct platform_device *pdev)
 	iounmap(pcdev->base_csi);
 
 	if (cpu_is_mx27()) {
-		clk_disable(pcdev->clk_emma);
-		clk_put(pcdev->clk_emma);
+		clk_disable_unprepare(pcdev->clk_emma_ipg);
+		clk_put(pcdev->clk_emma_ipg);
+		clk_disable_unprepare(pcdev->clk_emma_ahb);
+		clk_put(pcdev->clk_emma_ahb);
 		iounmap(pcdev->base_emma);
 		res = pcdev->res_emma;
 		release_mem_region(res->start, resource_size(res));

drivers/media/video/mx3_camera.c

@@ -61,15 +61,9 @@
 
 #define MAX_VIDEO_MEM 16
 
-enum csi_buffer_state {
-	CSI_BUF_NEEDS_INIT,
-	CSI_BUF_PREPARED,
-};
-
 struct mx3_camera_buffer {
 	/* common v4l buffer stuff -- must be first */
 	struct vb2_buffer			vb;
-	enum csi_buffer_state			state;
 	struct list_head			queue;
 
 	/* One descriptot per scatterlist (per frame) */
@@ -285,7 +279,7 @@ static void mx3_videobuf_queue(struct vb2_buffer *vb)
 		goto error;
 	}
 
-	if (buf->state == CSI_BUF_NEEDS_INIT) {
+	if (!buf->txd) {
 		sg_dma_address(sg)	= vb2_dma_contig_plane_dma_addr(vb, 0);
 		sg_dma_len(sg)		= new_size;
 
@@ -298,7 +292,6 @@ static void mx3_videobuf_queue(struct vb2_buffer *vb)
 		txd->callback_param	= txd;
 		txd->callback		= mx3_cam_dma_done;
 
-		buf->state		= CSI_BUF_PREPARED;
 		buf->txd		= txd;
 	} else {
 		txd = buf->txd;
@@ -385,7 +378,6 @@ static void mx3_videobuf_release(struct vb2_buffer *vb)
 
 	/* Doesn't hurt also if the list is empty */
 	list_del_init(&buf->queue);
-	buf->state = CSI_BUF_NEEDS_INIT;
 
 	if (txd) {
 		buf->txd = NULL;
@@ -405,13 +397,13 @@ static int mx3_videobuf_init(struct vb2_buffer *vb)
 	struct mx3_camera_dev *mx3_cam = ici->priv;
 	struct mx3_camera_buffer *buf = to_mx3_vb(vb);
 
-	/* This is for locking debugging only */
-	INIT_LIST_HEAD(&buf->queue);
-	sg_init_table(&buf->sg, 1);
+	if (!buf->txd) {
+		/* This is for locking debugging only */
+		INIT_LIST_HEAD(&buf->queue);
+		sg_init_table(&buf->sg, 1);
 
-	buf->state = CSI_BUF_NEEDS_INIT;
-
-	mx3_cam->buf_total += vb2_plane_size(vb, 0);
+		mx3_cam->buf_total += vb2_plane_size(vb, 0);
+	}
 
 	return 0;
 }

drivers/media/video/soc_camera.c

@@ -171,7 +171,8 @@ static int soc_camera_try_fmt(struct soc_camera_device *icd,
 	dev_dbg(icd->pdev, "TRY_FMT(%c%c%c%c, %ux%u)\n",
 		pixfmtstr(pix->pixelformat), pix->width, pix->height);
 
-	if (!(ici->capabilities & SOCAM_HOST_CAP_STRIDE)) {
+	if (pix->pixelformat != V4L2_PIX_FMT_JPEG &&
+	    !(ici->capabilities & SOCAM_HOST_CAP_STRIDE)) {
 		pix->bytesperline = 0;
 		pix->sizeimage = 0;
 	}

drivers/media/video/soc_mediabus.c

@@ -378,6 +378,9 @@ EXPORT_SYMBOL(soc_mbus_samples_per_pixel);
 
 s32 soc_mbus_bytes_per_line(u32 width, const struct soc_mbus_pixelfmt *mf)
 {
+	if (mf->fourcc == V4L2_PIX_FMT_JPEG)
+		return 0;
+
 	if (mf->layout != SOC_MBUS_LAYOUT_PACKED)
 		return width * mf->bits_per_sample / 8;
 
@@ -400,6 +403,9 @@ EXPORT_SYMBOL(soc_mbus_bytes_per_line);
 s32 soc_mbus_image_size(const struct soc_mbus_pixelfmt *mf,
 			u32 bytes_per_line, u32 height)
 {
+	if (mf->fourcc == V4L2_PIX_FMT_JPEG)
+		return 0;
+
 	if (mf->layout == SOC_MBUS_LAYOUT_PACKED)
 		return bytes_per_line * height;
 

drivers/media/video/uvc/uvc_queue.c

@@ -338,6 +338,7 @@ struct uvc_buffer *uvc_queue_next_buffer(struct uvc_video_queue *queue,
 	if ((queue->flags & UVC_QUEUE_DROP_CORRUPTED) && buf->error) {
 		buf->error = 0;
 		buf->state = UVC_BUF_STATE_QUEUED;
+		buf->bytesused = 0;
 		vb2_set_plane_payload(&buf->buf, 0, 0);
 		return buf;
 	}

drivers/media/video/v4l2-ioctl.c

@@ -402,8 +402,10 @@ static void v4l_print_hw_freq_seek(const void *arg, bool write_only)
 {
 	const struct v4l2_hw_freq_seek *p = arg;
 
-	pr_cont("tuner=%u, type=%u, seek_upward=%u, wrap_around=%u, spacing=%u\n",
-		p->tuner, p->type, p->seek_upward, p->wrap_around, p->spacing);
+	pr_cont("tuner=%u, type=%u, seek_upward=%u, wrap_around=%u, spacing=%u, "
+		"rangelow=%u, rangehigh=%u\n",
+		p->tuner, p->type, p->seek_upward, p->wrap_around, p->spacing,
+		p->rangelow, p->rangehigh);
 }
 
 static void v4l_print_requestbuffers(const void *arg, bool write_only)
@@ -1853,6 +1855,8 @@ static int v4l_enum_freq_bands(const struct v4l2_ioctl_ops *ops,
 			.type = type,
 		};
 
+		if (p->index)
+			return -EINVAL;
 		err = ops->vidioc_g_tuner(file, fh, &t);
 		if (err)
 			return err;
@@ -1870,6 +1874,8 @@ static int v4l_enum_freq_bands(const struct v4l2_ioctl_ops *ops,
 
 		if (type != V4L2_TUNER_RADIO)
 			return -EINVAL;
+		if (p->index)
+			return -EINVAL;
 		err = ops->vidioc_g_modulator(file, fh, &m);
 		if (err)
 			return err;