media: v4l: common: Fix naming of v4l2_get_link_rate

Rename v4l2_get_link_rate() as v4l2_get_link_freq(). What the function
returns is the frequency of the link; rename it to reflect the name of the
control where the information is obtained.

Fixes: 1b888b3c ("media: v4l: Add a helper for obtaining the link frequency")
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>

drivers/media/pci/intel/ipu3/ipu3-cio2.c

@@ -302,7 +302,7 @@ static int cio2_csi2_calc_timing(struct cio2_device *cio2, struct cio2_queue *q,
 	if (!q->sensor)
 		return -ENODEV;
 
-	freq = v4l2_get_link_rate(q->sensor->ctrl_handler, bpp, lanes);
+	freq = v4l2_get_link_freq(q->sensor->ctrl_handler, bpp, lanes);
 	if (freq < 0) {
 		dev_err(dev, "error %lld, invalid link_freq\n", freq);
 		return freq;

drivers/media/v4l2-core/v4l2-common.c

@@ -442,7 +442,7 @@ int v4l2_fill_pixfmt(struct v4l2_pix_format *pixfmt, u32 pixelformat,
 }
 EXPORT_SYMBOL_GPL(v4l2_fill_pixfmt);
 
-s64 v4l2_get_link_rate(struct v4l2_ctrl_handler *handler, unsigned int mul,
+s64 v4l2_get_link_freq(struct v4l2_ctrl_handler *handler, unsigned int mul,
 		       unsigned int div)
 {
 	struct v4l2_ctrl *ctrl;
@@ -473,4 +473,4 @@ s64 v4l2_get_link_rate(struct v4l2_ctrl_handler *handler, unsigned int mul,
 
 	return freq > 0 ? freq : -EINVAL;
 }
-EXPORT_SYMBOL_GPL(v4l2_get_link_rate);
+EXPORT_SYMBOL_GPL(v4l2_get_link_freq);

include/media/v4l2-common.h

@@ -520,7 +520,7 @@ int v4l2_fill_pixfmt_mp(struct v4l2_pix_format_mplane *pixfmt, u32 pixelformat,
 			u32 width, u32 height);
 
 /**
- * v4l2_get_link_rate - Get link rate from transmitter
+ * v4l2_get_link_freq - Get link rate from transmitter
  *
  * @handler: The transmitter's control handler
  * @mul: The multiplier between pixel rate and link frequency. Bits per pixel on
@@ -537,7 +537,7 @@ int v4l2_fill_pixfmt_mp(struct v4l2_pix_format_mplane *pixfmt, u32 pixelformat,
  *	-ENOENT: Link frequency or pixel rate control not found
  *	-EINVAL: Invalid link frequency value
  */
-s64 v4l2_get_link_rate(struct v4l2_ctrl_handler *handler, unsigned int mul,
+s64 v4l2_get_link_freq(struct v4l2_ctrl_handler *handler, unsigned int mul,
 		       unsigned int div);
 
 static inline u64 v4l2_buffer_get_timestamp(const struct v4l2_buffer *buf)