Check the return value of gpio_add_callback() in the display init
function, to resolve an issue flagged by static analysis.
Fixes#81921
Signed-off-by: Daniel DeGrasse <daniel.degrasse@nxp.com>
"wlen" variable set to return value of mipi_dsi_transfer should be a
ssize_t type, so that if a negative value is returned the error will be
caught and returned.
Fixes#81929
Signed-off-by: Daniel DeGrasse <daniel.degrasse@nxp.com>
Fix dead code within the set_pixel_format() function for the RM67162.
This function should set the relevant data fields for the driver, then
send the MIPI DCS command to change pixel format.
Fixes#81945
Signed-off-by: Daniel DeGrasse <daniel.degrasse@nxp.com>
As the display API now check against valid callback functions and
returns -ENOSYS (or equalent), there is no need to provide
such functions in the driver code
Signed-off-by: Marcus Folkesson <marcus.folkesson@gmail.com>
The pm_policy_state_lock_put and pm_policy_state_lock_put functions
already become a no-op if CONFIG_PM is not enabled. Drop the guards
around it in few different drivers.
Signed-off-by: Fabio Baltieri <fabiobaltieri@google.com>
Add device level power management to rm67162 display. Device level power
management for this controller calls the MIPI DSI detach API, in order
to power down the MIPI DPHY when the display is not active.
Signed-off-by: Daniel DeGrasse <daniel.degrasse@nxp.com>
With update to handle DSI transfer length in MIPI_DSI driver, the logic
can be removed from the RM67162 driver. The driver now will simply
continue writing data until the full buffer is sent.
Signed-off-by: Daniel DeGrasse <daniel.degrasse@nxp.com>
Add support for RM67162 MIPI display controller. This controller
is configured to run in MIPI command/DBI mode, driving a 400x392 OLED
display.
Signed-off-by: Daniel DeGrasse <daniel.degrasse@nxp.com>
