Add a summary which resulted from discussions on what should be done to refactor backlight helpers in tinydrm so that they can be used in other drivers as well.
Signed-off-by: Meghana Madhyastha <meghana.madhyas...@gmail.com> --- Documentation/gpu/todo.rst | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-) diff --git a/Documentation/gpu/todo.rst b/Documentation/gpu/todo.rst index 22af55d..1acf84fe 100644 --- a/Documentation/gpu/todo.rst +++ b/Documentation/gpu/todo.rst @@ -353,7 +353,16 @@ those drivers as simple as possible, so lots of room for refactoring: - backlight helpers, probably best to put them into a new drm_backlight.c. This is because drivers/video is de-facto unmaintained. We could also move drivers/video/backlight to drivers/gpu/backlight and take it all - over within drm-misc, but that's more work. + over within drm-misc, but that's more work. Backlight helpers require a fair + bit of reworking and refactoring. A simple example is the enabling of a backlight. + Tinydrm has helpers for this. It would be good if other drivers can also use the + helper. However, there are various cases we need to consider i.e different + drivers seem to have different ways of enabling/disabling a backlight. + We also need to consider the backlight drivers (like gpio_backlight). The situation + is further complicated by the fact that the backlight is tied to fbdev + via fb_notifier_callback() which has complicated logic. For further details, refer + to the following discussion thread: + https://groups.google.com/forum/#!topic/outreachy-kernel/8rBe30lwtdA - spi helpers, probably best put into spi core/helper code. Thierry said the spi maintainer is fast&reactive, so shouldn't be a big issue. -- 2.7.4 _______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel
