From: Michael Srba <Michael.Srba@xxxxxxxxx>
This patch adds 1% tolerance on input clock frequency, similar to other
camera sensor drivers.
Signed-off-by: Michael Srba <Michael.Srba@xxxxxxxxx>
---
changes since v1: default to exactly 24MHz when `clock-frequency` is not
present
changes since v2: remove the ability to set the clock to a specific
frequency, since assigned-clocks + assigned-clock-rates can be used 1:1
for the same purpose
---
drivers/media/i2c/imx219.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/media/i2c/imx219.c b/drivers/media/i2c/imx219.c
index f64c0ef7a897..fd2157eadac4 100644
--- a/drivers/media/i2c/imx219.c
+++ b/drivers/media/i2c/imx219.c
@@ -1443,8 +1443,9 @@ static int imx219_probe(struct i2c_client *client)
return PTR_ERR(imx219->xclk);
}
+ /* this driver currently expects 24MHz; allow 1% tolerance */
imx219->xclk_freq = clk_get_rate(imx219->xclk);
- if (imx219->xclk_freq != IMX219_XCLK_FREQ) {
+ if (imx219->xclk_freq < 23760000 || imx219->xclk_freq > 24240000) {
dev_err(dev, "xclk frequency not supported: %d Hz\n",
imx219->xclk_freq);
return -EINVAL;
--
2.29.2
