kernel/linux.git/drivers/gpu/drm/sun4i, branch linux-4.13.y

drm/sun4i: Implement drm_driver lastclose to restore fbdev console

2017-07-17T06:22:03+00:00

The drm_driver lastclose callback is called when the last userspace DRM client has closed. Call drm_fbdev_cma_restore_mode to restore the fbdev console otherwise the fbdev console will stop working. Fixes: 9026e0d122ac ("drm: Add Allwinner A10 Display Engine support") Cc: stable@vger.kernel.org Tested-by: Olliver Schinagl Reviewed-by: Chen-Yu Tsai Signed-off-by: Jonathan Liu Signed-off-by: Maxime Ripard

Merge tag 'sunxi-drm-for-4.13' of https://git.kernel.org/pub/scm/linux/kernel/git/mripard/linux into drm-next

2017-06-16T00:02:35+00:00

sun4i-drm changes for 4.13 An unusually big pull request for this merge window, with three notable features: - V3s display engine support. This is especially notable because it uses a different display engine used on the newer Allwinner SoCs (H3, A64 and the likes) that will be quite easily supported now. - HDMI support for the old Allwinner SoCs. This is enabled only on the A10s for now, but should be really easy to extend to deal with A10, A20 and A31 - Preliminary work to deal with dual-pipeline SoCs (A10, A20, A31, H3, etc.). It currently ignores the second pipeline, but we can use the dual-pipelines bindings. This will be useful to enable the display pipeline while we work on the dual-pipeline. * tag 'sunxi-drm-for-4.13' of https://git.kernel.org/pub/scm/linux/kernel/git/mripard/linux: (27 commits) drm/sun4i: Add compatible for the A10s pipeline drm/sun4i: Add HDMI support dt-bindings: display: sun4i: Add allwinner,tcon-channel property dt-bindings: display: sun4i: Add HDMI display bindings drm/sun4i: Ignore the generic connectors for components drm/sun4i: tcon: multiply the vtotal when not in interlace drm/sun4i: tcon: Change vertical total size computation inconsistency drm/sun4i: tcon: Fix tcon channel 1 backporch calculation drm/sun4i: tcon: Switch mux on only for composite drm/sun4i: tcon: Move the muxing out of the mode set function drm/sun4i: tcon: Add channel debug drm/sun4i: tcon: add support for V3s TCON drm/sun4i: Add compatible string for V3s display engine drm/sun4i: add support for Allwinner DE2 mixers drm/sun4i: add a Kconfig option for sun4i-backend drm/sun4i: abstract a engine type drm/sun4i: return only planes for layers created dt-bindings: add bindings for DE2 on V3s SoC drm/sun4i: backend: Clarify sun4i_backend_layer_enable debug message drm/sun4i: Set TCON clock inside sun4i_tconX_mode_set ...

drm/sun4i: Add compatible for the A10s pipeline

2017-06-01T07:50:01+00:00

The A10s has a slightly different display pipeline than the A13, with an HDMI controller. Add a compatible for it. Reviewed-by: Chen-Yu Tsai Acked-by: Rob Herring Signed-off-by: Maxime Ripard

drm/sun4i: Add HDMI support

2017-06-01T07:50:01+00:00

The earlier Allwinner SoCs (A10, A10s, A20, A31) have an embedded HDMI controller. That HDMI controller is able to do audio and CEC, but those have been left out for now. Reviewed-by: Chen-Yu Tsai Signed-off-by: Maxime Ripard

drm/sun4i: Ignore the generic connectors for components

2017-06-01T07:49:59+00:00

The generic connectors such as hdmi-connector doesn't have any driver in, so if they are added to the component list, we will be waiting forever for a non-existing driver to probe. Add a list of the connectors we want to ignore when building our component list. Reviewed-by: Chen-Yu Tsai Signed-off-by: Maxime Ripard

drm/sun4i: tcon: multiply the vtotal when not in interlace

2017-06-01T07:49:59+00:00

It appears that the total vertical resolution needs to be doubled when we're not in interlaced. Make sure that is the case. Reviewed-by: Chen-Yu Tsai Signed-off-by: Maxime Ripard

drm/sun4i: tcon: Change vertical total size computation inconsistency

2017-06-01T07:49:58+00:00

Both TCON channels need to have the resolution doubled, since the size the hardware is going to use is whatever we put in the register divided by two. However, we handle it differently for the two channels: in the channel 0, our register access macro does the multiplication of the value passed as paremeter, while in the channel 1, the macro doesn't do this, and we need to do it before calling it. Make this consistent by aligning the channel 0 with the channel 1 behaviour. Signed-off-by: Maxime Ripard Acked-by: Chen-Yu Tsai Signed-off-by: Maxime Ripard

drm/sun4i: tcon: Fix tcon channel 1 backporch calculation

2017-06-01T07:49:58+00:00

It seems like what's called a backporch in the datasheet is actually the backporch plus the sync period. Fix that in our driver. Acked-by: Chen-Yu Tsai Signed-off-by: Maxime Ripard

drm/sun4i: tcon: Switch mux on only for composite

2017-06-01T07:49:57+00:00

Even though that mux is undocumented, it seems like it needs to be set to 1 when using composite, and 0 when using HDMI. Signed-off-by: Maxime Ripard Acked-by: Chen-Yu Tsai Signed-off-by: Maxime Ripard

drm/sun4i: tcon: Move the muxing out of the mode set function

2017-06-01T07:49:57+00:00

The muxing can actually happen on both channels on some SoCs, so it makes more sense to just move it out of the sun4i_tcon1_mode_set function and create a separate function that needs to be called by the encoders. Let's do that and convert the existing drivers. Signed-off-by: Maxime Ripard Acked-by: Chen-Yu Tsai Signed-off-by: Maxime Ripard