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drm/sun4i: Add support for A10 display pipeline components 

The A10 display pipeline has 2 frontends, 2 backends, and 2 TCONs.
This patch adds support (or a compatible string in the frontend's
case) for these components.

The TCONs support directly outputting to CPU/RGB/LVDS LCD panels,
or it can output to HDMI via an on-chip HDMI controller, or
CVBS/YPbPr/VGA signals via on-chip TV encoders. These additional
encoders are not covered in this patch.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20171017121807.2994-5-wens@csie.org
This commit is contained in:
Chen-Yu Tsai 2017-10-17 20:18:01 +08:00 committed by Maxime Ripard
parent 7ea4291f9f
commit 9a8187c003
3 changed files with 14 additions and 1 deletions
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3
Documentation/devicetree/bindings/display/sunxi/sun4i-drm.txt
View File

@ -155,6 +155,7 @@ system.
Required properties:
- compatible: value must be one of:
* allwinner,sun4i-a10-display-backend
* allwinner,sun5i-a13-display-backend
* allwinner,sun6i-a31-display-backend
* allwinner,sun8i-a33-display-backend
@ -187,6 +188,7 @@ deinterlacing and color space conversion.
Required properties:
- compatible: value must be one of:
* allwinner,sun4i-a10-display-frontend
* allwinner,sun5i-a13-display-frontend
* allwinner,sun6i-a31-display-frontend
* allwinner,sun8i-a33-display-frontend
@ -233,6 +235,7 @@ extra node.
Required properties:
- compatible: value must be one of:
* allwinner,sun4i-a10-display-engine
* allwinner,sun5i-a10s-display-engine
* allwinner,sun5i-a13-display-engine
* allwinner,sun6i-a31-display-engine

8
drivers/gpu/drm/sun4i/sun4i_backend.c
View File

@ -514,6 +514,10 @@ static int sun4i_backend_remove(struct platform_device *pdev)
return 0;
}
static const struct sun4i_backend_quirks sun4i_backend_quirks = {
.needs_output_muxing = true,
};
static const struct sun4i_backend_quirks sun5i_backend_quirks = {
};
@ -524,6 +528,10 @@ static const struct sun4i_backend_quirks sun8i_a33_backend_quirks = {
};
static const struct of_device_id sun4i_backend_of_table[] = {
{
.compatible = "allwinner,sun4i-a10-display-backend",
.data = &sun4i_backend_quirks,
},
{
.compatible = "allwinner,sun5i-a13-display-backend",
.data = &sun5i_backend_quirks,

4
drivers/gpu/drm/sun4i/sun4i_drv.c
View File

@ -178,7 +178,8 @@ static bool sun4i_drv_node_is_connector(struct device_node *node)
static bool sun4i_drv_node_is_frontend(struct device_node *node)
{
return of_device_is_compatible(node, "allwinner,sun5i-a13-display-frontend") ||
return of_device_is_compatible(node, "allwinner,sun4i-a10-display-frontend") ||
of_device_is_compatible(node, "allwinner,sun5i-a13-display-frontend") ||
of_device_is_compatible(node, "allwinner,sun6i-a31-display-frontend") ||
of_device_is_compatible(node, "allwinner,sun8i-a33-display-frontend");
}
@ -343,6 +344,7 @@ static int sun4i_drv_remove(struct platform_device *pdev)
}
static const struct of_device_id sun4i_drv_of_table[] = {
{ .compatible = "allwinner,sun4i-a10-display-engine" },
{ .compatible = "allwinner,sun5i-a10s-display-engine" },
{ .compatible = "allwinner,sun5i-a13-display-engine" },
{ .compatible = "allwinner,sun6i-a31-display-engine" },