On Renesas RZ/{G2L,V2L} platforms changing the lanes from 4 to 3 at
lower frequencies causes display instability. On such platforms, it
is better to avoid switching lanes from 4 to 3 as it needs different
set of PLL parameter constraints to make the display stable with 3
lanes.
This patch introduces 'adi,disable-lanes-override' property to disable
lane switching at lower frequencies.
Signed-off-by: Biju Das <biju.das.jz@xxxxxxxxxxxxxx>
Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@xxxxxxxxxxxxxx>
---
.../devicetree/bindings/display/bridge/adi,adv7533.yaml | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/Documentation/devicetree/bindings/display/bridge/adi,adv7533.yaml b/Documentation/devicetree/bindings/display/bridge/adi,adv7533.yaml
index f36209137c8a..2dc378039d21 100644
--- a/Documentation/devicetree/bindings/display/bridge/adi,adv7533.yaml
+++ b/Documentation/devicetree/bindings/display/bridge/adi,adv7533.yaml
@@ -84,6 +84,11 @@ properties:
timings for HDMI output.
type: boolean
+ adi,disable-lanes-override:
+ description:
+ Disables the overriding lanes at lower frequencies.
+ type: boolean
+
adi,dsi-lanes:
description: Number of DSI data lanes connected to the DSI host.
$ref: /schemas/types.yaml#/definitions/uint32
--
2.17.1
