The R8A7793 DU is identical to the R8A7791 and thus only requires a new
DT compatible string.
Cc: devicetree@xxxxxxxxxxxxxxx
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@xxxxxxxxxxxxxxxx>
---
Documentation/devicetree/bindings/video/renesas,du.txt | 12 +++++++-----
drivers/gpu/drm/rcar-du/rcar_du_drv.c | 4 +++-
2 files changed, 10 insertions(+), 6 deletions(-)
diff --git a/Documentation/devicetree/bindings/video/renesas,du.txt b/Documentation/devicetree/bindings/video/renesas,du.txt
index c902323928f7..d05be121486f 100644
--- a/Documentation/devicetree/bindings/video/renesas,du.txt
+++ b/Documentation/devicetree/bindings/video/renesas,du.txt
@@ -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
diff --git a/drivers/gpu/drm/rcar-du/rcar_du_drv.c b/drivers/gpu/drm/rcar-du/rcar_du_drv.c
index 44879136e933..90d19fb976ab 100644
--- a/drivers/gpu/drm/rcar-du/rcar_du_drv.c
+++ b/drivers/gpu/drm/rcar-du/rcar_du_drv.c
@@ -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 },
{ }
};
--
2.4.6
--
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