rdma fifo size may be different even in same SOC, add this
property to the corresponding rdma

Change-Id: I67635ec7f3f59cf4cbc7737285e5e28ff0ab71c9
Signed-off-by: Yongqiang Niu <yongqiang....@mediatek.com>
---
 .../devicetree/bindings/display/mediatek/mediatek,disp.txt | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git 
a/Documentation/devicetree/bindings/display/mediatek/mediatek,disp.txt 
b/Documentation/devicetree/bindings/display/mediatek/mediatek,disp.txt
index b91e709..e6bbe32 100644
--- a/Documentation/devicetree/bindings/display/mediatek/mediatek,disp.txt
+++ b/Documentation/devicetree/bindings/display/mediatek/mediatek,disp.txt
@@ -66,6 +66,11 @@ Required properties (DMA function blocks):
   argument, see Documentation/devicetree/bindings/iommu/mediatek,iommu.txt
   for details.
 
+Optional properties (RDMA function blocks):
+- mediatek,rdma_fifo_size: rdma fifo size may be different even in same SOC, 
add this
+  property to the corresponding rdma
+  the value is the Max value which defined in hardware data sheet.
+
 Examples:
 
 mmsys: clock-controller@14000000 {
@@ -207,3 +212,12 @@ od@14023000 {
        power-domains = <&scpsys MT8173_POWER_DOMAIN_MM>;
        clocks = <&mmsys CLK_MM_DISP_OD>;
 };
+
+rdma1: rdma@1400c000 {
+       compatible = "mediatek,mt8183-disp-rdma";
+       reg = <0 0x1400c000 0 0x1000>;
+       interrupts = <GIC_SPI 229 IRQ_TYPE_LEVEL_LOW>;
+       power-domains = <&scpsys MT8183_POWER_DOMAIN_DISP>;
+       clocks = <&mmsys CLK_MM_DISP_RDMA1>;
+       mediatek,rdma_fifo_size = <2048>;
+};
-- 
1.8.1.1.dirty
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