dt-bindings: display/ti: Add optional property to set memory bandwidth limit

max-memory-bandwidth can be used to specify the maximum bandwidth dispc can use when reading display data from main memory. In some SoC (am437x for example) we have memory bandwidth limitation which causes underflow in the display subsystem. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2017-11-30 14:12:35 +02:00
parent aa8eeb9967
commit 32fdb62423
5 changed files with 21 additions and 0 deletions
@@ -47,6 +47,11 @@ Required properties:
 - clocks: handle to fclk
 - clock-names: "fck"

+Optional properties:
+- max-memory-bandwidth: Input memory (from main memory to dispc) bandwidth limit
+			in bytes per second
+
+
 HDMI
 ----

@@ -28,6 +28,10 @@ Required properties:
 - ti,hwmods: "dss_dispc"
 - interrupts: the DISPC interrupt

+Optional properties:
+- max-memory-bandwidth: Input memory (from main memory to dispc) bandwidth limit
+			in bytes per second
+

 RFBI
 ----
@@ -37,6 +37,10 @@ Required properties:
 - clocks: handle to fclk
 - clock-names: "fck"

+Optional properties:
+- max-memory-bandwidth: Input memory (from main memory to dispc) bandwidth limit
+			in bytes per second
+

 RFBI
 ----
@@ -36,6 +36,10 @@ Required properties:
 - clocks: handle to fclk
 - clock-names: "fck"

+Optional properties:
+- max-memory-bandwidth: Input memory (from main memory to dispc) bandwidth limit
+			in bytes per second
+

 RFBI
 ----
@@ -36,6 +36,10 @@ Required properties:
 - clocks: handle to fclk
 - clock-names: "fck"

+Optional properties:
+- max-memory-bandwidth: Input memory (from main memory to dispc) bandwidth limit
+			in bytes per second
+

 RFBI
 ----