Merging upstream version 6.9.7.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 32 insertions, 6 deletions

diff --git a/include/media/v4l2-common.h b/include/media/v4l2-common.h
index acf5be24a5..63ad36f04f 100644
--- a/include/media/v4l2-common.h
+++ b/include/media/v4l2-common.h
@@ -278,13 +278,13 @@ static inline void v4l2_i2c_subdev_unregister(struct v4l2_subdev *sd)
  *
  *
  * @v4l2_dev: pointer to &struct v4l2_device.
- * @master: pointer to struct spi_master.
+ * @ctlr: pointer to struct spi_controller.
  * @info: pointer to struct spi_board_info.
  *
  * returns a &struct v4l2_subdev pointer.
  */
 struct v4l2_subdev *v4l2_spi_new_subdev(struct v4l2_device *v4l2_dev,
-		struct spi_master *master, struct spi_board_info *info);
+		struct spi_controller *ctlr, struct spi_board_info *info);
 
 /**
  * v4l2_spi_subdev_init - Initialize a v4l2_subdev with data from an
@@ -308,7 +308,7 @@ void v4l2_spi_subdev_unregister(struct v4l2_subdev *sd);
 
 static inline struct v4l2_subdev *
 v4l2_spi_new_subdev(struct v4l2_device *v4l2_dev,
-		    struct spi_master *master, struct spi_board_info *info)
+		    struct spi_controller *ctlr, struct spi_board_info *info)
 {
 	return NULL;
 }
@@ -536,9 +536,10 @@ int v4l2_fill_pixfmt_mp(struct v4l2_pix_format_mplane *pixfmt, u32 pixelformat,
  * V4L2_CID_LINK_FREQ control implemented by the transmitter, or value
  * calculated based on the V4L2_CID_PIXEL_RATE implemented by the transmitter.
  *
- * Returns link frequency on success, otherwise a negative error code:
- *	-ENOENT: Link frequency or pixel rate control not found
- *	-EINVAL: Invalid link frequency value
+ * Return:
+ * * >0: Link frequency
+ * * %-ENOENT: Link frequency or pixel rate control not found
+ * * %-EINVAL: Invalid link frequency value
  */
 s64 v4l2_get_link_freq(struct v4l2_ctrl_handler *handler, unsigned int mul,
 		       unsigned int div);
@@ -547,6 +548,31 @@ void v4l2_simplify_fraction(u32 *numerator, u32 *denominator,
 		unsigned int n_terms, unsigned int threshold);
 u32 v4l2_fraction_to_interval(u32 numerator, u32 denominator);
 
+/**
+ * v4l2_link_freq_to_bitmap - Figure out platform-supported link frequencies
+ * @dev: The struct device
+ * @fw_link_freqs: Array of link frequencies from firmware
+ * @num_of_fw_link_freqs: Number of entries in @fw_link_freqs
+ * @driver_link_freqs: Array of link frequencies supported by the driver
+ * @num_of_driver_link_freqs: Number of entries in @driver_link_freqs
+ * @bitmap: Bitmap of driver-supported link frequencies found in @fw_link_freqs
+ *
+ * This function checks which driver-supported link frequencies are enabled in
+ * system firmware and sets the corresponding bits in @bitmap (after first
+ * zeroing it).
+ *
+ * Return:
+ * * %0: Success
+ * * %-ENOENT: No match found between driver-supported link frequencies and
+ *   those available in firmware.
+ * * %-ENODATA: No link frequencies were specified in firmware.
+ */
+int v4l2_link_freq_to_bitmap(struct device *dev, const u64 *fw_link_freqs,
+			     unsigned int num_of_fw_link_freqs,
+			     const s64 *driver_link_freqs,
+			     unsigned int num_of_driver_link_freqs,
+			     unsigned long *bitmap);
+
 static inline u64 v4l2_buffer_get_timestamp(const struct v4l2_buffer *buf)
 {
 	/*