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Date: Thu, 7 Jan 2021 11:11:11 +0800 From: Yongqiang Niu <yongqiang.niu@...iatek.com> To: CK Hu <ck.hu@...iatek.com>, Philipp Zabel <p.zabel@...gutronix.de>, Rob Herring <robh+dt@...nel.org>, Matthias Brugger <matthias.bgg@...il.com> CC: David Airlie <airlied@...ux.ie>, Daniel Vetter <daniel@...ll.ch>, Mark Rutland <mark.rutland@....com>, <dri-devel@...ts.freedesktop.org>, <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>, <linux-arm-kernel@...ts.infradead.org>, <linux-mediatek@...ts.infradead.org>, <Project_Global_Chrome_Upstream_Group@...iatek.com>, Hsin-Yi Wang <hsinyi@...omium.org>, Yongqiang Niu <yongqiang.niu@...iatek.com> Subject: [PATCH v9, 01/11] dt-bindings: mediatek: add rdma-fifo-size description for mt8183 display rdma fifo size may be different even in same SOC, add this property to the corresponding rdma Signed-off-by: Yongqiang Niu <yongqiang.niu@...iatek.com> --- .../devicetree/bindings/display/mediatek/mediatek,disp.txt | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/Documentation/devicetree/bindings/display/mediatek/mediatek,disp.txt b/Documentation/devicetree/bindings/display/mediatek/mediatek,disp.txt index 33977e1..b07881e 100644 --- a/Documentation/devicetree/bindings/display/mediatek/mediatek,disp.txt +++ b/Documentation/devicetree/bindings/display/mediatek/mediatek,disp.txt @@ -66,6 +66,14 @@ 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. + mediatek,rdma-fifo-size of mt8173-rdma0 is 8K + mediatek,rdma-fifo-size of mt8183-rdma0 is 5K + mediatek,rdma-fifo-size of mt8183-rdma1 is 2K + Examples: mmsys: clock-controller@...00000 { @@ -103,6 +111,7 @@ rdma0: rdma@...0e000 { clocks = <&mmsys CLK_MM_DISP_RDMA0>; iommus = <&iommu M4U_PORT_DISP_RDMA0>; mediatek,larb = <&larb0>; + mediatek,rdma-fifosize = <8192>; }; rdma1: rdma@...0f000 { -- 1.8.1.1.dirty
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