Merge tag 'media/v4.17-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media

Pull media updates from Mauro Carvalho Chehab:

 - new CEC pin injection code for testing purposes

 - DVB frontend cxd2099 promoted from staging

 - new platform driver for Sony cxd2880 DVB devices

 - new sensor drivers: mt9t112, ov2685, ov5695, ov772x, tda1997x,
   tw9910.c

 - removal of unused cx18 and ivtv alsa mixers

 - the reneseas-ceu driver doesn't depend on soc_camera anymore and
   moved from staging

 - removed the mantis_vp3028 driver, unused since 2009

 - s5p-mfc: add support for version 10 of the MSP

 - added a decoder for imon protocol

 - atomisp: lots of cleanups

 - imx074 and mt9t031: don't depend on soc_camera anymore, being
   promoted from staging

 - added helper functions to better support DVB I2C binding

 - lots of driver improvements and cleanups

* tag 'media/v4.17-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (438 commits)
  media: v4l2-ioctl: rename a temp var that stores _IOC_SIZE(cmd)
  media: fimc-capture: get rid of two warnings
  media: dvb-usb-v2: fix a missing dependency of I2C_MUX
  media: uvc: to the right check at uvc_ioctl_enum_framesizes()
  media: cec-core: fix a bug at cec_error_inj_write()
  media: tda9840: cleanup a warning
  media: tm6000:  avoid casting just to print pointer address
  media: em28xx-input: improve error handling code
  media: zr364xx: avoid casting just to print pointer address
  media: vivid-radio-rx: add a cast to avoid a warning
  media: saa7134-alsa: don't use casts to print a buffer address
  media: solo6x10: get rid of an address space warning
  media: zoran: don't cast pointers to print them
  media: ir-kbd-i2c: change the if logic to avoid a warning
  media: ir-kbd-i2c: improve error handling code
  media: saa7134-input: improve error handling
  media: s2255drv: fix a casting warning
  media: ivtvfb: Cleanup some warnings
  media: videobuf-dma-sg: Fix a weird cast
  soc_camera: fix a weird cast on printk
  ...

1 files changed, 51 insertions, 9 deletions

diff --git a/include/media/v4l2-common.h b/include/media/v4l2-common.h
index e0d95a7c5d48..54b689247937 100644
--- a/include/media/v4l2-common.h
+++ b/include/media/v4l2-common.h
@@ -316,21 +316,37 @@ void v4l_bound_align_image(unsigned int *width, unsigned int wmin,
                            unsigned int salign);
 
 /**
- * v4l2_find_nearest_format - find the nearest format size among a discrete
- *      set of resolutions.
+ * v4l2_find_nearest_size - Find the nearest size among a discrete
+ *      set of resolutions contained in an array of a driver specific struct.
  *
- * @sizes: array of &struct v4l2_frmsize_discrete image sizes.
- * @num_sizes: length of @sizes array.
+ * @array: a driver specific array of image sizes
+ * @width_field: the name of the width field in the driver specific struct
+ * @height_field: the name of the height field in the driver specific struct
  * @width: desired width.
  * @height: desired height.
  *
  * Finds the closest resolution to minimize the width and height differences
- * between what requested and the supported resolutions.
+ * between what requested and the supported resolutions. The size of the width
+ * and height fields in the driver specific must equal to that of u32, i.e. four
+ * bytes.
+ *
+ * Returns the best match or NULL if the length of the array is zero.
  */
-const struct v4l2_frmsize_discrete *
-v4l2_find_nearest_format(const struct v4l2_frmsize_discrete *sizes,
-                          const size_t num_sizes,
-                          s32 width, s32 height);
+#define v4l2_find_nearest_size(array, width_field, height_field, \
+                               width, height)                           \
+        ({                                                              \
+                BUILD_BUG_ON(sizeof((array)->width_field) != sizeof(u32) || \
+                             sizeof((array)->height_field) != sizeof(u32)); \
+                (typeof(&(*(array))))__v4l2_find_nearest_size(          \
+                        (array), ARRAY_SIZE(array), sizeof(*(array)),   \
+                        offsetof(typeof(*(array)), width_field),        \
+                        offsetof(typeof(*(array)), height_field),       \
+                        width, height);                                 \
+        })
+const void *
+__v4l2_find_nearest_size(const void *array, size_t array_size,
+                         size_t entry_size, size_t width_offset,
+                         size_t height_offset, s32 width, s32 height);
 
 /**
  * v4l2_get_timestamp - helper routine to get a timestamp to be used when
@@ -341,4 +357,30 @@ v4l2_find_nearest_format(const struct v4l2_frmsize_discrete *sizes,
  */
 void v4l2_get_timestamp(struct timeval *tv);
 
+/**
+ * v4l2_g_parm_cap - helper routine for vidioc_g_parm to fill this in by
+ *      calling the g_frame_interval op of the given subdev. It only works
+ *      for V4L2_BUF_TYPE_VIDEO_CAPTURE(_MPLANE), hence the _cap in the
+ *      function name.
+ *
+ * @vdev: the struct video_device pointer. Used to determine the device caps.
+ * @sd: the sub-device pointer.
+ * @a: the VIDIOC_G_PARM argument.
+ */
+int v4l2_g_parm_cap(struct video_device *vdev,
+                    struct v4l2_subdev *sd, struct v4l2_streamparm *a);
+
+/**
+ * v4l2_s_parm_cap - helper routine for vidioc_s_parm to fill this in by
+ *      calling the s_frame_interval op of the given subdev. It only works
+ *      for V4L2_BUF_TYPE_VIDEO_CAPTURE(_MPLANE), hence the _cap in the
+ *      function name.
+ *
+ * @vdev: the struct video_device pointer. Used to determine the device caps.
+ * @sd: the sub-device pointer.
+ * @a: the VIDIOC_S_PARM argument.
+ */
+int v4l2_s_parm_cap(struct video_device *vdev,
+                    struct v4l2_subdev *sd, struct v4l2_streamparm *a);
+
 #endif /* V4L2_COMMON_H_ */