The CSI (camera sensor interface) controller found on the H3 (and H5)
is a reduced version of the one found on the A31. It only has 1 channel,
instead of 4 channels supporting time-multiplexed BT.656 on the A31.
Since the H3 is a reduced version, it cannot "fallback" to a compatible
that implements more features than it supports.
This series separates support for the H3 variant from the A31 variant.
Patches 1 ~ 3 separate H3 CSI from A31 CSI in the bindings, driver, and
device tree, respectively.
Patch 4 adds a pinmux setting for the MCLK (master clock). Some camera
sensors use the master clock from the SoC instead of a standalone
crystal.
Patches 5 and 6 are examples of using a camera sensor with an SBC.
Since the modules are detachable, these changes should not be merged.
They should be implemented as overlays instead.
Please have a look.
In addition, I found that the first frame captured seems to always be
incomplete, with either parts cropped, out of position, or missing
color components.
Regards
ChenYu
Chen-Yu Tsai (6):
media: dt-bindings: media: sun6i: Separate H3 compatible from A31
media: sun6i: Add H3 compatible
ARM: dts: sunxi: h3/h5: Drop A31 fallback compatible for CSI
controller
ARM: dts: sunxi: h3-h5: Add pinmux setting for CSI MCLK on PE1
[DO NOT MERGE] ARM: dts: sunxi: bananapi-m2p: Add HDF5640 camera
module
[DO NOT MERGE] ARM: dts: sunxi: libretech-all-h3-cc: Add HDF5640
camera module
.../devicetree/bindings/media/sun6i-csi.txt | 2 +-
arch/arm/boot/dts/sunxi-bananapi-m2-plus.dtsi | 87 +++++++++++++++++++
arch/arm/boot/dts/sunxi-h3-h5.dtsi | 8 +-
.../boot/dts/sunxi-libretech-all-h3-cc.dtsi | 81 +++++++++++++++++
.../platform/sunxi/sun6i-csi/sun6i_csi.c | 1 +
5 files changed, 176 insertions(+), 3 deletions(-)
--
2.20.0.rc1
