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Commit f1ceb84a authored by Laurent Pinchart's avatar Laurent Pinchart
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drm: rcar-du: Add support for the R8A7793 DU 



The R8A7793 DU is identical to the R8A7791 and thus only requires a new
DT compatible string.

Signed-off-by: default avatarLaurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
parent affa0e03

Documentation/devicetree/bindings/video/renesas,du.txt

+7 −5
Original line number Diff line number Diff line
@@ -5,7 +5,8 @@ Required Properties: 
  - compatible: must be one of the following.

    - "renesas,du-r8a7779" for R8A7779 (R-Car H1) compatible DU

    - "renesas,du-r8a7790" for R8A7790 (R-Car H2) compatible DU

    - "renesas,du-r8a7791" for R8A7791 (R-Car M2) compatible DU

    - "renesas,du-r8a7791" for R8A7791 (R-Car M2-W) compatible DU

    - "renesas,du-r8a7793" for R8A7793 (R-Car M2-N) compatible DU



  - reg: A list of base address and length of each memory resource, one for

    each entry in the reg-names property.
@@ -22,9 +23,9 @@ Required Properties: 
  - clock-names: Name of the clocks. This property is model-dependent.

    - R8A7779 uses a single functional clock. The clock doesn't need to be

      named.

    - R8A7790 and R8A7791 use one functional clock per channel and one clock

      per LVDS encoder. The functional clocks must be named "du.x" with "x"

      being the channel numerical index. The LVDS clocks must be named

    - R8A779[013] use one functional clock per channel and one clock per LVDS

      encoder (if available). The functional clocks must be named "du.x" with

      "x" being the channel numerical index. The LVDS clocks must be named

      "lvds.x" with "x" being the LVDS encoder numerical index.

    - In addition to the functional and encoder clocks, all DU versions also

      support externally supplied pixel clocks. Those clocks are optional.
@@ -43,7 +44,8 @@ corresponding to each DU output. 
-----------------------------------------------------------------------------

 R8A7779 (H1)	DPAD 0		DPAD 1		-

 R8A7790 (H2)	DPAD		LVDS 0		LVDS 1

 R8A7791 (M2)	DPAD		LVDS 0		-

 R8A7791 (M2-W)	DPAD		LVDS 0		-

 R8A7793 (M2-N)	DPAD		LVDS 0		-





Example: R8A7790 (R-Car H2) DU

drivers/gpu/drm/rcar-du/rcar_du_drv.c

+3 −1
Original line number Diff line number Diff line
@@ -84,12 +84,13 @@ static const struct rcar_du_device_info rcar_du_r8a7790_info = { 
	.num_lvds = 2,

};



/* M2-W (r8a7791) and M2-N (r8a7793) are identical */

static const struct rcar_du_device_info rcar_du_r8a7791_info = {

	.features = RCAR_DU_FEATURE_CRTC_IRQ_CLOCK

		  | RCAR_DU_FEATURE_EXT_CTRL_REGS,

	.num_crtcs = 2,

	.routes = {

		/* R8A7791 has one RGB output, one LVDS output and one

		/* R8A779[13] has one RGB output, one LVDS output and one

		 * (currently unsupported) TCON output.

		 */

		[RCAR_DU_OUTPUT_DPAD0] = {
@@ -110,6 +111,7 @@ static const struct of_device_id rcar_du_of_table[] = { 
	{ .compatible = "renesas,du-r8a7779", .data = &rcar_du_r8a7779_info },

	{ .compatible = "renesas,du-r8a7790", .data = &rcar_du_r8a7790_info },

	{ .compatible = "renesas,du-r8a7791", .data = &rcar_du_r8a7791_info },

	{ .compatible = "renesas,du-r8a7793", .data = &rcar_du_r8a7791_info },

	{ }

};