Hello all, I have been experiencing an issue with a SAMA5D3 Xplained board where the attached LCD panel would boot up completely white until an application that uses DRM is actually started.
After some investigation I found that this happens because by default, backlight devices are immediately enabled when registered. A solution involving a new "backlight-boot-off" DT property was discussed some time ago [1], but was never merged. I think this would be useful in general; see for example [2]. I know there is a concern that configuration should not be part of the device tree, but this is not much different from the "default-brightness-level" property, and no other solutions have been proposed. Are there any plans to implement something like this? [1]: https://lkml.org/lkml/2014/7/31/259 [2]: https://groups.google.com/a/chromium.org/forum/#!topic/chromium-os-reviews/NaicvV6KQUs -- Guillermo Rodriguez Garcia [email protected]
