[PATCH 49/49] dt: display: Add binds for the DPE and DSI controller for Kirin 960/970
Mauro Carvalho Chehab
mchehab+huawei at kernel.org
Wed Aug 19 07:46:17 EDT 2020
Add a description of the bindings used by Kirin 960/970 Display
Serial Interface (DSI) controller and by its Display Engine (DPE).
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei at kernel.org>
---
.../display/hisilicon,hi3660-dpe.yaml | 99 +++++++++++++++++
.../display/hisilicon,hi3660-dsi.yaml | 102 ++++++++++++++++++
.../boot/dts/hisilicon/hikey970-drm.dtsi | 4 +-
3 files changed, 203 insertions(+), 2 deletions(-)
create mode 100644 Documentation/devicetree/bindings/display/hisilicon,hi3660-dpe.yaml
create mode 100644 Documentation/devicetree/bindings/display/hisilicon,hi3660-dsi.yaml
diff --git a/Documentation/devicetree/bindings/display/hisilicon,hi3660-dpe.yaml b/Documentation/devicetree/bindings/display/hisilicon,hi3660-dpe.yaml
new file mode 100644
index 000000000000..074997354417
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/hisilicon,hi3660-dpe.yaml
@@ -0,0 +1,99 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/hisilicon,hi3660-dpe.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: HiSilicon SPMI controller
+
+maintainers:
+ - Mauro Carvalho Chehab <mchehab+huawei at kernel.org>
+
+description: |
+ The HiSilicon Display Engine (DPE) s the display controller which grab
+ image data from memory, do composition, do post image processing,
+ generate RGB timing stream and transfer to DSI.
+
+properties:
+ $nodename:
+ pattern: "dpe@[0-9a-f]+"
+
+ compatible:
+ enum:
+ - hisilicon,kirin960-dpe
+ - hisilicon,kirin970-dpe
+
+ reg:
+ minItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ clocks:
+ minItems: 1
+ description: Clocks used by the ISP and by the display
+
+ clock-names:
+ description: Names for the clock lines
+
+ dma-coherent: true
+
+ port:
+ type: object
+ description: A port node pointing to the display output endpoint.
+
+
+ iommu-info:
+ type: object
+ description: IOMMU address and size to be used by GPU
+
+ properties:
+ start-addr:
+ const: start address for IOMMU
+ size:
+ const: size of the mapped region
+
+examples:
+ - |
+ dpe: dpe at e8600000 {
+ compatible = "hisilicon,kirin970-dpe";
+ memory-region = <&drm_dma_reserved>;
+ reg = <0 0xE8600000 0 0xC0000>,
+ <0 0xFFF35000 0 0x1000>,
+ <0 0xFFF0A000 0 0x1000>,
+ <0 0xE8A09000 0 0x1000>,
+ <0 0xE86C0000 0 0x10000>,
+ <0 0xFFF31000 0 0x1000>,
+ <0 0xE87FF000 0 0x1000>;
+
+ interrupts = <0 245 4>;
+
+ clocks = <&media1_crg HI3670_ACLK_GATE_DSS>,
+ <&media1_crg HI3670_PCLK_GATE_DSS>,
+ <&media1_crg HI3670_CLK_GATE_EDC0>,
+ <&media1_crg HI3670_CLK_GATE_LDI0>,
+ <&media1_crg HI3670_CLK_GATE_DSS_AXI_MM>,
+ <&media1_crg HI3670_PCLK_GATE_MMBUF>,
+ <&crg_ctrl HI3670_PCLK_GATE_PCTRL>;
+
+ clock-names = "aclk_dss",
+ "pclk_dss",
+ "clk_edc0",
+ "clk_ldi0",
+ "clk_dss_axi_mm",
+ "pclk_mmbuf",
+ "pclk_pctrl";
+
+ dma-coherent;
+
+ port {
+ dpe_out: endpoint {
+ remote-endpoint = <&dsi_in>;
+ };
+ };
+
+ iommu_info {
+ start-addr = <0x8000>;
+ size = <0xbfff8000>;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/display/hisilicon,hi3660-dsi.yaml b/Documentation/devicetree/bindings/display/hisilicon,hi3660-dsi.yaml
new file mode 100644
index 000000000000..2265267fc53d
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/hisilicon,hi3660-dsi.yaml
@@ -0,0 +1,102 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/hisilicon,hi3660-dsi.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: HiSilicon SPMI controller
+
+maintainers:
+ - Mauro Carvalho Chehab <mchehab+huawei at kernel.org>
+
+description: |
+ The HiSilicon Display Serial Interface (DSI) Host Controller for
+ Kirin 960 and 970 resides in the middle of display controller and
+ an external HDMI converter or panel.
+
+properties:
+ $nodename:
+ pattern: "dsi@[0-9a-f]+"
+
+ compatible:
+ enum:
+ - hisilicon,kirin960-dsi
+ - hisilicon,kirin970-dsi
+
+ reg:
+ minItems: 1
+ maxItems: 4
+
+ clocks:
+ minItems: 1
+ maxItems: 8
+ description: Clocks used by the ISP and by the display.
+
+ clock-names:
+ description: Names for the clock lines.
+
+ "#address-cells":
+ const: 1
+
+ "#size-cells":
+ const: 0
+
+ mux-gpio:
+ description: GPIO used by the mux.
+
+ ports:
+ type: object
+ description: Display input and output ports.
+
+examples:
+ - |
+ dsi: dsi at e8601000 {
+ compatible = "hisilicon,kirin970-dsi";
+ reg = <0 0xE8601000 0 0x7F000>,
+ <0 0xFFF35000 0 0x1000>,
+ <0 0xE8A09000 0 0x1000>;
+
+ clocks = <&crg_ctrl HI3670_CLK_GATE_TXDPHY0_REF>,
+ <&crg_ctrl HI3670_CLK_GATE_TXDPHY1_REF>,
+ <&crg_ctrl HI3670_CLK_GATE_TXDPHY0_CFG>,
+ <&crg_ctrl HI3670_CLK_GATE_TXDPHY1_CFG>,
+ <&crg_ctrl HI3670_PCLK_GATE_DSI0>,
+ <&crg_ctrl HI3670_PCLK_GATE_DSI1>;
+ clock-names = "clk_txdphy0_ref",
+ "clk_txdphy1_ref",
+ "clk_txdphy0_cfg",
+ "clk_txdphy1_cfg",
+ "pclk_dsi0",
+ "pclk_dsi1";
+
+ #address-cells = <1>;
+ #size-cells = <0>;
+ mux-gpio = <&gpio25 7 0>;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port at 0 {
+ reg = <0>;
+ dsi_in: endpoint {
+ remote-endpoint = <&dpe_out>;
+ };
+ };
+
+ port at 1 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <1>;
+
+ dsi_out0: endpoint at 0 {
+ reg = <0>;
+ remote-endpoint = <&adv7533_in>;
+ };
+
+ dsi_out1: endpoint at 1 {
+ reg = <1>;
+ remote-endpoint = <&panel0_in>;
+ };
+ };
+ };
diff --git a/arch/arm64/boot/dts/hisilicon/hikey970-drm.dtsi b/arch/arm64/boot/dts/hisilicon/hikey970-drm.dtsi
index 503c7c9425c8..5758d7d181e5 100644
--- a/arch/arm64/boot/dts/hisilicon/hikey970-drm.dtsi
+++ b/arch/arm64/boot/dts/hisilicon/hikey970-drm.dtsi
@@ -1,6 +1,6 @@
// SPDX-License-Identifier: GPL-2.0
/ {
- dpe: dpe at E8600000 {
+ dpe: dpe at e8600000 {
compatible = "hisilicon,kirin970-dpe";
memory-region = <&drm_dma_reserved>;
// DSS, PERI_CRG, SCTRL, PCTRL, NOC_DSS_Service_Target, PMCTRL, MEDIA_CRG
@@ -44,7 +44,7 @@ iommu_info {
};
};
- dsi: dsi at E8601000 {
+ dsi: dsi at e8601000 {
compatible = "hisilicon,kirin970-dsi";
reg = <0 0xE8601000 0 0x7F000>,
<0 0xFFF35000 0 0x1000>,
--
2.26.2
More information about the linux-arm-kernel
mailing list