When a driver related to one of the endpoints is deferred due to probe dependencies (i2c, spi...) but the other one is ready, ltdc probe continues and the deferred driver will never be probed again. The fix consists in waiting for all deferred endpoints before continuing the ltdc probe. Signed-off-by: Philippe Cornu <philippe.cornu@xxxxxx> --- drivers/gpu/drm/stm/ltdc.c | 11 +++++------ 1 file changed, 5 insertions(+), 6 deletions(-) diff --git a/drivers/gpu/drm/stm/ltdc.c b/drivers/gpu/drm/stm/ltdc.c index e3121d9e4230..014cef8cef37 100644 --- a/drivers/gpu/drm/stm/ltdc.c +++ b/drivers/gpu/drm/stm/ltdc.c @@ -987,14 +987,13 @@ int ltdc_load(struct drm_device *ddev) &bridge[i]); /* - * If at least one endpoint is ready, continue probing, - * else if at least one endpoint is -EPROBE_DEFER and - * there is no previous ready endpoints, defer probing. + * If at least one endpoint is -EPROBE_DEFER, defer probing, + * else if at least one endpoint is ready, continue probing. */ - if (!ret) + if (ret == -EPROBE_DEFER) + return ret; + else if (!ret) endpoint_not_ready = 0; - else if (ret == -EPROBE_DEFER && endpoint_not_ready) - endpoint_not_ready = -EPROBE_DEFER; } if (endpoint_not_ready) -- 2.15.1 _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/dri-devel
