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linux/Documentation/devicetree/bindings/display/msm/qcom,sm7150-mdss.yaml
Abhinav Kumar 9be5c47908 dt-bindings: display/msm: expand to support MST
On a vast majority of Qualcomm chipsets DisplayPort controller can
support several MST streams (up to 4x). To support MST these chipsets
use up to 4 stream pixel clocks for the DisplayPort controller and
several extra register regions. Expand corresponding region and clock
bindings for these platforms and fix example schema files to follow
updated bindings.

Note: On chipsets that support MST, the number of streams supported
can vary between controllers. For example, SA8775P supports 4 MST
streams on mdss_dp0 but only 2 streams on mdss_dp1.

Signed-off-by: Abhinav Kumar <quic_abhinavk@quicinc.com>
Signed-off-by: Jessica Zhang <jessica.zhang@oss.qualcomm.com>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Patchwork: https://patchwork.freedesktop.org/patch/672585/
Link: https://lore.kernel.org/r/20250903-dp_mst_bindings-v8-7-7526f0311eaa@oss.qualcomm.com
2025-09-04 02:20:49 +03:00

465 lines
14 KiB
YAML

# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
%YAML 1.2
---
$id: http://devicetree.org/schemas/display/msm/qcom,sm7150-mdss.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Qualcomm SM7150 Display MDSS
maintainers:
- Danila Tikhonov <danila@jiaxyga.com>
description:
SM7150 MSM Mobile Display Subsystem(MDSS), which encapsulates sub-blocks like
DPU display controller, DSI and DP interfaces etc.
$ref: /schemas/display/msm/mdss-common.yaml#
properties:
compatible:
const: qcom,sm7150-mdss
clocks:
items:
- description: Display ahb clock from gcc
- description: Display hf axi clock
- description: Display sf axi clock
- description: Display core clock
clock-names:
items:
- const: iface
- const: bus
- const: nrt_bus
- const: core
iommus:
maxItems: 1
interconnects:
items:
- description: Interconnect path from mdp0 port to the data bus
- description: Interconnect path from mdp1 port to the data bus
- description: Interconnect path from CPU to the reg bus
interconnect-names:
items:
- const: mdp0-mem
- const: mdp1-mem
- const: cpu-cfg
patternProperties:
"^display-controller@[0-9a-f]+$":
type: object
additionalProperties: true
properties:
compatible:
const: qcom,sm7150-dpu
"^displayport-controller@[0-9a-f]+$":
type: object
additionalProperties: true
properties:
compatible:
contains:
const: qcom,sm7150-dp
"^dsi@[0-9a-f]+$":
type: object
additionalProperties: true
properties:
compatible:
items:
- const: qcom,sm7150-dsi-ctrl
- const: qcom,mdss-dsi-ctrl
"^phy@[0-9a-f]+$":
type: object
additionalProperties: true
properties:
compatible:
const: qcom,dsi-phy-10nm
required:
- compatible
unevaluatedProperties: false
examples:
- |
#include <dt-bindings/clock/qcom,rpmh.h>
#include <dt-bindings/interconnect/qcom,icc.h>
#include <dt-bindings/interconnect/qcom,sm7150-rpmh.h>
#include <dt-bindings/interrupt-controller/arm-gic.h>
#include <dt-bindings/power/qcom,rpmhpd.h>
display-subsystem@ae00000 {
compatible = "qcom,sm7150-mdss";
reg = <0x0ae00000 0x1000>;
reg-names = "mdss";
power-domains = <&dispcc_mdss_gdsc>;
clocks = <&dispcc_mdss_ahb_clk>,
<&gcc_disp_hf_axi_clk>,
<&gcc_disp_sf_axi_clk>,
<&dispcc_mdss_mdp_clk>;
clock-names = "iface",
"bus",
"nrt_bus",
"core";
interrupts = <GIC_SPI 83 IRQ_TYPE_LEVEL_HIGH>;
interrupt-controller;
#interrupt-cells = <1>;
interconnects = <&mmss_noc MASTER_MDP_PORT0 QCOM_ICC_TAG_ALWAYS
&mc_virt SLAVE_EBI_CH0 QCOM_ICC_TAG_ALWAYS>,
<&mmss_noc MASTER_MDP_PORT1 QCOM_ICC_TAG_ALWAYS
&mc_virt SLAVE_EBI_CH0 QCOM_ICC_TAG_ALWAYS>,
<&gem_noc MASTER_AMPSS_M0 QCOM_ICC_TAG_ACTIVE_ONLY
&config_noc SLAVE_DISPLAY_CFG QCOM_ICC_TAG_ACTIVE_ONLY>;
interconnect-names = "mdp0-mem",
"mdp1-mem",
"cpu-cfg";
iommus = <&apps_smmu 0x800 0x440>;
#address-cells = <1>;
#size-cells = <1>;
ranges;
display-controller@ae01000 {
compatible = "qcom,sm7150-dpu";
reg = <0x0ae01000 0x8f000>,
<0x0aeb0000 0x2008>;
reg-names = "mdp", "vbif";
clocks = <&gcc_disp_hf_axi_clk>,
<&dispcc_mdss_ahb_clk>,
<&dispcc_mdss_rot_clk>,
<&dispcc_mdss_mdp_lut_clk>,
<&dispcc_mdss_mdp_clk>,
<&dispcc_mdss_vsync_clk>;
clock-names = "bus",
"iface",
"rot",
"lut",
"core",
"vsync";
assigned-clocks = <&dispcc_mdss_vsync_clk>;
assigned-clock-rates = <19200000>;
operating-points-v2 = <&mdp_opp_table>;
power-domains = <&rpmhpd RPMHPD_CX>;
interrupt-parent = <&mdss>;
interrupts = <0>;
ports {
#address-cells = <1>;
#size-cells = <0>;
port@0 {
reg = <0>;
dpu_intf1_out: endpoint {
remote-endpoint = <&mdss_dsi0_in>;
};
};
port@1 {
reg = <1>;
dpu_intf2_out: endpoint {
remote-endpoint = <&mdss_dsi1_in>;
};
};
port@2 {
reg = <2>;
dpu_intf0_out: endpoint {
remote-endpoint = <&dp_in>;
};
};
};
mdp_opp_table: opp-table {
compatible = "operating-points-v2";
opp-19200000 {
opp-hz = /bits/ 64 <19200000>;
required-opps = <&rpmhpd_opp_min_svs>;
};
opp-200000000 {
opp-hz = /bits/ 64 <200000000>;
required-opps = <&rpmhpd_opp_low_svs>;
};
opp-300000000 {
opp-hz = /bits/ 64 <300000000>;
required-opps = <&rpmhpd_opp_svs>;
};
opp-344000000 {
opp-hz = /bits/ 64 <344000000>;
required-opps = <&rpmhpd_opp_svs_l1>;
};
opp-430000000 {
opp-hz = /bits/ 64 <430000000>;
required-opps = <&rpmhpd_opp_nom>;
};
};
};
dsi@ae94000 {
compatible = "qcom,sm7150-dsi-ctrl",
"qcom,mdss-dsi-ctrl";
reg = <0x0ae94000 0x400>;
reg-names = "dsi_ctrl";
interrupt-parent = <&mdss>;
interrupts = <4>;
clocks = <&dispcc_mdss_byte0_clk>,
<&dispcc_mdss_byte0_intf_clk>,
<&dispcc_mdss_pclk0_clk>,
<&dispcc_mdss_esc0_clk>,
<&dispcc_mdss_ahb_clk>,
<&gcc_disp_hf_axi_clk>;
clock-names = "byte",
"byte_intf",
"pixel",
"core",
"iface",
"bus";
assigned-clocks = <&dispcc_mdss_byte0_clk_src>,
<&dispcc_mdss_pclk0_clk_src>;
assigned-clock-parents = <&mdss_dsi0_phy 0>,
<&mdss_dsi0_phy 1>;
operating-points-v2 = <&dsi_opp_table>;
power-domains = <&rpmhpd RPMHPD_CX>;
phys = <&mdss_dsi0_phy>;
phy-names = "dsi";
#address-cells = <1>;
#size-cells = <0>;
ports {
#address-cells = <1>;
#size-cells = <0>;
port@0 {
reg = <0>;
mdss_dsi0_in: endpoint {
remote-endpoint = <&dpu_intf1_out>;
};
};
port@1 {
reg = <1>;
mdss_dsi0_out: endpoint {
};
};
};
dsi_opp_table: opp-table {
compatible = "operating-points-v2";
opp-180000000 {
opp-hz = /bits/ 64 <180000000>;
required-opps = <&rpmhpd_opp_low_svs>;
};
opp-275000000 {
opp-hz = /bits/ 64 <275000000>;
required-opps = <&rpmhpd_opp_svs>;
};
opp-358000000 {
opp-hz = /bits/ 64 <358000000>;
required-opps = <&rpmhpd_opp_svs_l1>;
};
};
};
mdss_dsi0_phy: phy@ae94400 {
compatible = "qcom,dsi-phy-10nm";
reg = <0x0ae94400 0x200>,
<0x0ae94600 0x280>,
<0x0ae94a00 0x1e0>;
reg-names = "dsi_phy",
"dsi_phy_lane",
"dsi_pll";
#clock-cells = <1>;
#phy-cells = <0>;
clocks = <&dispcc_mdss_ahb_clk>,
<&rpmhcc RPMH_CXO_CLK>;
clock-names = "iface", "ref";
vdds-supply = <&vdda_mipi_dsi0_pll>;
};
dsi@ae96000 {
compatible = "qcom,sm7150-dsi-ctrl",
"qcom,mdss-dsi-ctrl";
reg = <0x0ae96000 0x400>;
reg-names = "dsi_ctrl";
interrupt-parent = <&mdss>;
interrupts = <5>;
clocks = <&dispcc_mdss_byte1_clk>,
<&dispcc_mdss_byte1_intf_clk>,
<&dispcc_mdss_pclk1_clk>,
<&dispcc_mdss_esc1_clk>,
<&dispcc_mdss_ahb_clk>,
<&gcc_disp_hf_axi_clk>;
clock-names = "byte",
"byte_intf",
"pixel",
"core",
"iface",
"bus";
assigned-clocks = <&dispcc_mdss_byte1_clk_src>,
<&dispcc_mdss_pclk1_clk_src>;
assigned-clock-parents = <&mdss_dsi1_phy 0>,
<&mdss_dsi1_phy 1>;
operating-points-v2 = <&dsi_opp_table>;
power-domains = <&rpmhpd RPMHPD_CX>;
phys = <&mdss_dsi1_phy>;
phy-names = "dsi";
#address-cells = <1>;
#size-cells = <0>;
ports {
#address-cells = <1>;
#size-cells = <0>;
port@0 {
reg = <0>;
mdss_dsi1_in: endpoint {
remote-endpoint = <&dpu_intf2_out>;
};
};
port@1 {
reg = <1>;
mdss_dsi1_out: endpoint {
};
};
};
};
mdss_dsi1_phy: phy@ae96400 {
compatible = "qcom,dsi-phy-10nm";
reg = <0x0ae96400 0x200>,
<0x0ae96600 0x280>,
<0x0ae96a00 0x1e0>;
reg-names = "dsi_phy",
"dsi_phy_lane",
"dsi_pll";
#clock-cells = <1>;
#phy-cells = <0>;
clocks = <&dispcc_mdss_ahb_clk>,
<&rpmhcc RPMH_CXO_CLK>;
clock-names = "iface", "ref";
vdds-supply = <&vdda_mipi_dsi1_pll>;
};
displayport-controller@ae90000 {
compatible = "qcom,sm7150-dp",
"qcom,sm8350-dp";
reg = <0xae90000 0x200>,
<0xae90200 0x200>,
<0xae90400 0xc00>,
<0xae91000 0x400>,
<0xae91400 0x400>;
interrupt-parent = <&mdss>;
interrupts = <12>;
clocks = <&dispcc_mdss_ahb_clk>,
<&dispcc_mdss_dp_aux_clk>,
<&dispcc_mdss_dp_link_clk>,
<&dispcc_mdss_dp_link_intf_clk>,
<&dispcc_mdss_dp_pixel_clk>,
<&dispcc_mdss_dp_pixel1_clk>;
clock-names = "core_iface",
"core_aux",
"ctrl_link",
"ctrl_link_iface",
"stream_pixel",
"stream_1_pixel";
assigned-clocks = <&dispcc_mdss_dp_link_clk_src>,
<&dispcc_mdss_dp_pixel_clk_src>,
<&dispcc_mdss_dp_pixel1_clk_src>;
assigned-clock-parents = <&dp_phy 0>,
<&dp_phy 1>,
<&dp_phy 1>;
operating-points-v2 = <&dp_opp_table>;
power-domains = <&rpmhpd RPMHPD_CX>;
phys = <&dp_phy>;
phy-names = "dp";
#sound-dai-cells = <0>;
ports {
#address-cells = <1>;
#size-cells = <0>;
port@0 {
reg = <0>;
dp_in: endpoint {
remote-endpoint = <&dpu_intf0_out>;
};
};
port@1 {
reg = <1>;
dp_out: endpoint {
};
};
};
dp_opp_table: opp-table {
compatible = "operating-points-v2";
opp-160000000 {
opp-hz = /bits/ 64 <160000000>;
required-opps = <&rpmhpd_opp_low_svs>;
};
opp-270000000 {
opp-hz = /bits/ 64 <270000000>;
required-opps = <&rpmhpd_opp_svs>;
};
opp-540000000 {
opp-hz = /bits/ 64 <540000000>;
required-opps = <&rpmhpd_opp_svs_l1>;
};
opp-810000000 {
opp-hz = /bits/ 64 <810000000>;
required-opps = <&rpmhpd_opp_nom>;
};
};
};
};
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