Re: [PATCH] drm/msm/dsi: set default num_data_lanes

Quoting Philip Chen (2021-10-30 10:08:50)

If "data_lanes" property of the dsi output endpoint is missing in the DT, num_data_lanes would be 0 by default, which could cause dsi_host_attach() to fail if dsi->lanes is set to a non-zero value by the bridge driver.

According to the binding document of msm dsi controller, the input/output endpoint of the controller is expected to have 4 lanes. So let's set num_data_lanes to 4 by default.

Signed-off-by: Philip Chen philipchen@chromium.org

Reviewed-by: Stephen Boyd swboyd@chromium.org