Hi Neil, Hi Sam,

On Fri, Oct 15, 2021 at 4:11 PM Neil Armstrong [off-list ref] wrote:
[...]

+static const struct drm_bridge_funcs meson_encoder_cvbs_bridge_funcs = {
+       .attach = meson_encoder_cvbs_attach,
+       .enable = meson_encoder_cvbs_enable,
+       .disable = meson_encoder_cvbs_disable,
+       .mode_valid = meson_encoder_cvbs_mode_valid,
+       .get_modes = meson_encoder_cvbs_get_modes,
+       .atomic_enable = meson_encoder_cvbs_atomic_enable,

I did some testing on boards where u-boot doesn't initialize the video outputs.
It seems that meson_encoder_cvbs_enable() is never called with this patch.
meson_encoder_cvbs_atomic_enable() is called though.

From what I can see in drm_bridge.c [0] this is even expected.
Does this mean that we need to move all logic from .enable to
.atomic_enable (and same with .disable -> moving that logic to
.atomic_disable)?

The same comment applies to the HDMI patch.


Best regards,
Martin


[0] https://elixir.bootlin.com/linux/v5.15-rc5/source/drivers/gpu/drm/drm_bridge.c#L717

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