Update the formula to calculate the pixel rate on the link for C-PHY.
Signed-off-by: Sakari Ailus <sakari.ailus@xxxxxxxxxxxxxxx>
---
Documentation/driver-api/media/csi2.rst | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/Documentation/driver-api/media/csi2.rst b/Documentation/driver-api/media/csi2.rst
index e3bbc6baf0f0..11c52b0be8b8 100644
--- a/Documentation/driver-api/media/csi2.rst
+++ b/Documentation/driver-api/media/csi2.rst
@@ -35,7 +35,7 @@ ability to start and stop the stream.
The value of the V4L2_CID_PIXEL_RATE is calculated as follows::
- pixel_rate = link_freq * 2 * nr_of_lanes / bits_per_sample
+ pixel_rate = link_freq * 2 * nr_of_lanes * 16 / k / bits_per_sample
where
@@ -53,6 +53,8 @@ where
- Two bits are transferred per clock cycle per lane.
* - bits_per_sample
- Number of bits per sample.
+ * - k
+ - 16 for D-PHY and 7 for C-PHY
The transmitter drivers must, if possible, configure the CSI-2
transmitter to *LP-11 mode* whenever the transmitter is powered on but
--
2.29.2
