[v7, PATCH 4/7] dt-bindings: mediatek: add rdma_fifo_size description for mt8183 display

Yongqiang Niu
2020-07-23T02:04:54Z

Update device tree binding document for rdma_fifo_size

Signed-off-by: Yongqiang Niu <yongqiang.niu@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