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authorLinus Torvalds <torvalds@linux-foundation.org>2018-08-15 17:39:07 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2018-08-15 17:39:07 -0700
commit54dbe75bbf1e189982516de179147208e90b5e45 (patch)
tree523ba6dd21d2f9257b73d95d289095b116da0f75 /Documentation/devicetree/bindings/display/msm
parentdafa5f6577a9eecd2941add553d1672c30b02364 (diff)
parent557ce95051c8eff67af48612ab350d8408aa0541 (diff)
Merge tag 'drm-next-2018-08-15' of git://anongit.freedesktop.org/drm/drm
Pull drm updates from Dave Airlie: "This is the main drm pull request for 4.19. Rob has some new hardware support for new qualcomm hw that I'll send along separately. This has the display part of it, the remaining pull is for the acceleration engine. This also contains a wound-wait/wait-die mutex rework, Peter has acked it for merging via my tree. Otherwise mostly the usual level of activity. Summary: core: - Wound-wait/wait-die mutex rework - Add writeback connector type - Add "content type" property for HDMI - Move GEM bo to drm_framebuffer - Initial gpu scheduler documentation - GPU scheduler fixes for dying processes - Console deferred fbcon takeover support - Displayport support for CEC tunneling over AUX panel: - otm8009a panel driver fixes - Innolux TV123WAM and G070Y2-L01 panel driver - Ilitek ILI9881c panel driver - Rocktech RK070ER9427 LCD - EDT ETM0700G0EDH6 and EDT ETM0700G0BDH6 - DLC DLC0700YZG-1 - BOE HV070WSA-100 - newhaven, nhd-4.3-480272ef-atxl LCD - DataImage SCF0700C48GGU18 - Sharp LQ035Q7DB03 - p079zca: Refactor to support multiple panels tinydrm: - ILI9341 display panel New driver: - vkms - virtual kms driver to testing. i915: - Icelake: Display enablement DSI support IRQ support Powerwell support - GPU reset fixes and improvements - Full ppgtt support refactoring - PSR fixes and improvements - Execlist improvments - GuC related fixes amdgpu: - Initial amdgpu documentation - JPEG engine support on VCN - CIK uses powerplay by default - Move to using core PCIE functionality for gens/lanes - DC/Powerplay interface rework - Stutter mode support for RV - Vega12 Powerplay updates - GFXOFF fixes - GPUVM fault debugging - Vega12 GFXOFF - DC improvements - DC i2c/aux changes - UVD 7.2 fixes - Powerplay fixes for Polaris12, CZ/ST - command submission bo_list fixes amdkfd: - Raven support - Power management fixes udl: - Cleanups and fixes nouveau: - misc fixes and cleanups. msm: - DPU1 support display controller in sdm845 - GPU coredump support. vmwgfx: - Atomic modesetting validation fixes - Support for multisample surfaces armada: - Atomic modesetting support completed. exynos: - IPPv2 fixes - Move g2d to component framework - Suspend/resume support cleanups - Driver cleanups imx: - CSI configuration improvements - Driver cleanups - Use atomic suspend/resume helpers - ipu-v3 V4L2 XRGB32/XBGR32 support pl111: - Add Nomadik LCDC variant v3d: - GPU scheduler jobs management sun4i: - R40 display engine support - TCON TOP driver mediatek: - MT2712 SoC support rockchip: - vop fixes omapdrm: - Workaround for DRA7 errata i932 - Fix mm_list locking mali-dp: - Writeback implementation PM improvements - Internal error reporting debugfs tilcdc: - Single fix for deferred probing hdlcd: - Teardown fixes tda998x: - Converted to a bridge driver. etnaviv: - Misc fixes" * tag 'drm-next-2018-08-15' of git://anongit.freedesktop.org/drm/drm: (1506 commits) drm/amdgpu/sriov: give 8s for recover vram under RUNTIME drm/scheduler: fix param documentation drm/i2c: tda998x: correct PLL divider calculation drm/i2c: tda998x: get rid of private fill_modes function drm/i2c: tda998x: move mode_valid() to bridge drm/i2c: tda998x: register bridge outside of component helper drm/i2c: tda998x: cleanup from previous changes drm/i2c: tda998x: allocate tda998x_priv inside tda998x_create() drm/i2c: tda998x: convert to bridge driver drm/scheduler: fix timeout worker setup for out of order job completions drm/amd/display: display connected to dp-1 does not light up drm/amd/display: update clk for various HDMI color depths drm/amd/display: program display clock on cache match drm/amd/display: Add NULL check for enabling dp ss drm/amd/display: add vbios table check for enabling dp ss drm/amd/display: Don't share clk source between DP and HDMI drm/amd/display: Fix DP HBR2 Eye Diagram Pattern on Carrizo drm/amd/display: Use calculated disp_clk_khz value for dce110 drm/amd/display: Implement custom degamma lut on dcn drm/amd/display: Destroy aux_engines only once ...
Diffstat (limited to 'Documentation/devicetree/bindings/display/msm')
-rw-r--r--Documentation/devicetree/bindings/display/msm/dpu.txt131
-rw-r--r--Documentation/devicetree/bindings/display/msm/dsi.txt16
2 files changed, 147 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/display/msm/dpu.txt b/Documentation/devicetree/bindings/display/msm/dpu.txt
new file mode 100644
index 000000000000..ad2e8830324e
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/msm/dpu.txt
@@ -0,0 +1,131 @@
+Qualcomm Technologies, Inc. DPU KMS
+
+Description:
+
+Device tree bindings for MSM Mobile Display Subsytem(MDSS) that encapsulates
+sub-blocks like DPU display controller, DSI and DP interfaces etc.
+The DPU display controller is found in SDM845 SoC.
+
+MDSS:
+Required properties:
+- compatible: "qcom,sdm845-mdss"
+- reg: physical base address and length of contoller's registers.
+- reg-names: register region names. The following region is required:
+ * "mdss"
+- power-domains: a power domain consumer specifier according to
+ Documentation/devicetree/bindings/power/power_domain.txt
+- clocks: list of clock specifiers for clocks needed by the device.
+- clock-names: device clock names, must be in same order as clocks property.
+ The following clocks are required:
+ * "iface"
+ * "bus"
+ * "core"
+- interrupts: interrupt signal from MDSS.
+- interrupt-controller: identifies the node as an interrupt controller.
+- #interrupt-cells: specifies the number of cells needed to encode an interrupt
+ source, should be 1.
+- iommus: phandle of iommu device node.
+- #address-cells: number of address cells for the MDSS children. Should be 1.
+- #size-cells: Should be 1.
+- ranges: parent bus address space is the same as the child bus address space.
+
+Optional properties:
+- assigned-clocks: list of clock specifiers for clocks needing rate assignment
+- assigned-clock-rates: list of clock frequencies sorted in the same order as
+ the assigned-clocks property.
+
+MDP:
+Required properties:
+- compatible: "qcom,sdm845-dpu"
+- reg: physical base address and length of controller's registers.
+- reg-names : register region names. The following region is required:
+ * "mdp"
+ * "vbif"
+- clocks: list of clock specifiers for clocks needed by the device.
+- clock-names: device clock names, must be in same order as clocks property.
+ The following clocks are required.
+ * "bus"
+ * "iface"
+ * "core"
+ * "vsync"
+- interrupts: interrupt line from DPU to MDSS.
+- ports: contains the list of output ports from DPU device. These ports connect
+ to interfaces that are external to the DPU hardware, such as DSI, DP etc.
+
+ Each output port contains an endpoint that describes how it is connected to an
+ external interface. These are described by the standard properties documented
+ here:
+ Documentation/devicetree/bindings/graph.txt
+ Documentation/devicetree/bindings/media/video-interfaces.txt
+
+ Port 0 -> DPU_INTF1 (DSI1)
+ Port 1 -> DPU_INTF2 (DSI2)
+
+Optional properties:
+- assigned-clocks: list of clock specifiers for clocks needing rate assignment
+- assigned-clock-rates: list of clock frequencies sorted in the same order as
+ the assigned-clocks property.
+
+Example:
+
+ mdss: mdss@ae00000 {
+ compatible = "qcom,sdm845-mdss";
+ reg = <0xae00000 0x1000>;
+ reg-names = "mdss";
+
+ power-domains = <&clock_dispcc 0>;
+
+ clocks = <&gcc GCC_DISP_AHB_CLK>, <&gcc GCC_DISP_AXI_CLK>,
+ <&clock_dispcc DISP_CC_MDSS_MDP_CLK>;
+ clock-names = "iface", "bus", "core";
+
+ assigned-clocks = <&clock_dispcc DISP_CC_MDSS_MDP_CLK>;
+ assigned-clock-rates = <300000000>;
+
+ interrupts = <GIC_SPI 83 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-controller;
+ #interrupt-cells = <1>;
+
+ iommus = <&apps_iommu 0>;
+
+ #address-cells = <2>;
+ #size-cells = <1>;
+ ranges = <0 0 0xae00000 0xb2008>;
+
+ mdss_mdp: mdp@ae01000 {
+ compatible = "qcom,sdm845-dpu";
+ reg = <0 0x1000 0x8f000>, <0 0xb0000 0x2008>;
+ reg-names = "mdp", "vbif";
+
+ clocks = <&clock_dispcc DISP_CC_MDSS_AHB_CLK>,
+ <&clock_dispcc DISP_CC_MDSS_AXI_CLK>,
+ <&clock_dispcc DISP_CC_MDSS_MDP_CLK>,
+ <&clock_dispcc DISP_CC_MDSS_VSYNC_CLK>;
+ clock-names = "iface", "bus", "core", "vsync";
+
+ assigned-clocks = <&clock_dispcc DISP_CC_MDSS_MDP_CLK>,
+ <&clock_dispcc DISP_CC_MDSS_VSYNC_CLK>;
+ assigned-clock-rates = <0 0 300000000 19200000>;
+
+ interrupts = <0 IRQ_TYPE_LEVEL_HIGH>;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+ dpu_intf1_out: endpoint {
+ remote-endpoint = <&dsi0_in>;
+ };
+ };
+
+ port@1 {
+ reg = <1>;
+ dpu_intf2_out: endpoint {
+ remote-endpoint = <&dsi1_in>;
+ };
+ };
+ };
+ };
+ };
diff --git a/Documentation/devicetree/bindings/display/msm/dsi.txt b/Documentation/devicetree/bindings/display/msm/dsi.txt
index 5eaffca2e28c..dfc743219bd8 100644
--- a/Documentation/devicetree/bindings/display/msm/dsi.txt
+++ b/Documentation/devicetree/bindings/display/msm/dsi.txt
@@ -119,6 +119,20 @@ Required properties:
Optional properties:
- qcom,dsi-phy-regulator-ldo-mode: Boolean value indicating if the LDO mode PHY
regulator is wanted.
+- qcom,mdss-mdp-transfer-time-us: Specifies the dsi transfer time for command mode
+ panels in microseconds. Driver uses this number to adjust
+ the clock rate according to the expected transfer time.
+ Increasing this value would slow down the mdp processing
+ and can result in slower performance.
+ Decreasing this value can speed up the mdp processing,
+ but this can also impact power consumption.
+ As a rule this time should not be higher than the time
+ that would be expected with the processing at the
+ dsi link rate since anyways this would be the maximum
+ transfer time that could be achieved.
+ If ping pong split is enabled, this time should not be higher
+ than two times the dsi link rate time.
+ If the property is not specified, then the default value is 14000 us.
[1] Documentation/devicetree/bindings/clock/clock-bindings.txt
[2] Documentation/devicetree/bindings/graph.txt
@@ -169,6 +183,8 @@ Example:
qcom,master-dsi;
qcom,sync-dual-dsi;
+ qcom,mdss-mdp-transfer-time-us = <12000>;
+
pinctrl-names = "default", "sleep";
pinctrl-0 = <&dsi_active>;
pinctrl-1 = <&dsi_suspend>;