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Subject: media: Documentation: media: Update pixel rate formula for C-PHY Author: Sakari Ailus <[email protected]> Date: Fri Dec 11 23:15:04 2020 +0100 Update the formula to calculate the pixel rate on the link for C-PHY. Signed-off-by: Sakari Ailus <[email protected]> Signed-off-by: Mauro Carvalho Chehab <[email protected]> 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 _______________________________________________ linuxtv-commits mailing list [email protected] https://www.linuxtv.org/cgi-bin/mailman/listinfo/linuxtv-commits
