The data-sheet and documentation for this part uses the name xvclk not
ext_clk for the input reference clock. Rename the variables and defines in
this driver to align as preparation for adding DT support where the name of
the clock in DT will be "xvclk".

Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
---
 drivers/media/i2c/ov08x40.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/media/i2c/ov08x40.c b/drivers/media/i2c/ov08x40.c
index be25e45175b1322145dca428e845242d8fea2698..3ab8b51df157af78fcccc1aaef73aedb2ae759c9 100644
--- a/drivers/media/i2c/ov08x40.c
+++ b/drivers/media/i2c/ov08x40.c
@@ -1215,7 +1215,7 @@ static const char * const ov08x40_test_pattern_menu[] = {
 /* Configurations for supported link frequencies */
 #define OV08X40_LINK_FREQ_400MHZ	400000000ULL
 #define OV08X40_SCLK_96MHZ		96000000ULL
-#define OV08X40_EXT_CLK			19200000
+#define OV08X40_XVCLK			19200000
 #define OV08X40_DATA_LANES		4
 
 /*
@@ -2081,21 +2081,21 @@ static int ov08x40_check_hwcfg(struct device *dev)
 	struct fwnode_handle *fwnode = dev_fwnode(dev);
 	unsigned int i, j;
 	int ret;
-	u32 ext_clk;
+	u32 xvclk_rate;
 
 	if (!fwnode)
 		return -ENXIO;
 
 	ret = fwnode_property_read_u32(dev_fwnode(dev), "clock-frequency",
-				       &ext_clk);
+				       &xvclk_rate);
 	if (ret) {
 		dev_err(dev, "can't get clock frequency");
 		return ret;
 	}
 
-	if (ext_clk != OV08X40_EXT_CLK) {
+	if (xvclk_rate != OV08X40_XVCLK) {
 		dev_err(dev, "external clock %d is not supported",
-			ext_clk);
+			xvclk_rate);
 		return -EINVAL;
 	}
 

-- 
2.46.2