From: Niklas Söderlund <niklas.soderlund+renesas@xxxxxxxxxxxx>
Hi,
This series allows the TXA CSI-2 transmitter of the adv748x to function
in 1-, 2- and 4- lane mode. Currently the driver fixes the hardware in
4-lane mode. The driver looks at the standard DT property 'data-lanes'
to determine which mode it should operate in.
Patch 1/5 lists the 'data-lanes' DT property as mandatory for endpoints
describing the CSI-2 transmitters. Patch 2/5 and 3/5 refactors the
initialization sequence of the adv748x to be able to reuse more code.
Patch 4/5 adds the DT parsing and storing of the number of lanes. Patch
5/5 merges the TXA and TXB power up/down procedure while also taking the
configurable number of lanes into account.
The series is based on the latest media-tree master and is tested on
Renesas M3-N in 1-, 2- and 4- lane mode.
Niklas Söderlund (5):
dt-bindings: adv748x: make data-lanes property mandatory for CSI-2
endpoints
i2c: adv748x: reorder register writes for CSI-2 transmitters
initialization
i2c: adv748x: reuse power up sequence when initializing CSI-2
i2c: adv748x: store number of CSI-2 lanes described in device tree
i2c: adv748x: configure number of lanes used for TXA CSI-2 transmitter
.../devicetree/bindings/media/i2c/adv748x.txt | 3 +
drivers/media/i2c/adv748x/adv748x-core.c | 207 ++++++++++--------
drivers/media/i2c/adv748x/adv748x.h | 1 +
3 files changed, 122 insertions(+), 89 deletions(-)
--
2.19.0
