diff mbox series

[v10,4/4] dt-bindings: msm/dp: Add bindings of MSM DisplayPort controller

Message ID 1612420939-15502-4-git-send-email-mkrishn@codeaurora.org (mailing list archive)
State Superseded
Headers show
Series [v10,1/4] dt-bindings: msm: disp: add yaml schemas for DPU bindings | expand

Commit Message

Krishna Manikandan Feb. 4, 2021, 6:42 a.m. UTC
Add bindings for Snapdragon DisplayPort controller driver.

Signed-off-by: Chandan Uddaraju <chandanu@codeaurora.org>
Signed-off-by: Vara Reddy <varar@codeaurora.org>
Signed-off-by: Tanmay Shah <tanmay@codeaurora.org>
Signed-off-by: Kuogee Hsieh <khsieh@codeaurora.org>

---

Changes in V2:
-Provide details about sel-gpio

Changes in V4:
-Provide details about max dp lanes
-Change the commit text

Changes in V5:
-moved dp.txt to yaml file

Changes in v6:
- Squash all AUX LUT properties into one pattern Property
- Make aux-cfg[0-9]-settings properties optional
- Remove PLL/PHY bindings from DP controller dts
- Add DP clocks description
- Remove _clk suffix from clock names
- Rename pixel clock to stream_pixel
- Remove redundant bindings (GPIO, PHY, HDCP clock, etc..)
- Fix indentation
- Add Display Port as interface of DPU in DPU bindings
  and add port mapping accordingly.

Chages in v7:
- Add dp-controller.yaml file common between multiple SOC
- Rename dp-sc7180.yaml to dp-controller-sc7180.yaml
- change compatible string and add SOC name to it.
- Remove Root clock generator for pixel clock
- Add assigned-clocks and assigned-clock-parents bindings
- Remove redundant properties, descriptions and blank lines
- Add DP port in DPU bindings
- Update depends-on tag in commit message and rebase change accordingly

Changes in v8:
- Add MDSS AHB clock in bindings

Changes in v9:
- Remove redundant reg-name property
- Change assigned-clocks and assigned-clocks-parents counts to 2
- Use IRQ flags in example dts

Changes in v10:
- Change title of this patch as it does not contain PLL bindings anymore
- Remove redundant properties
- Remove use of IRQ flag
- Fix ports property

Changes in v11:
- add ports required of both #address-cells and  #size-cells
- add required operating-points-v2
- add required #sound-dai-cells
- add required power-domains
- update maintainer list
---
 .../bindings/display/msm/dp-controller.yaml        | 157 +++++++++++++++++++++
 .../bindings/display/msm/dpu-sc7180.yaml           |  10 ++
 2 files changed, 167 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/display/msm/dp-controller.yaml

Comments

Stephen Boyd Feb. 5, 2021, 7:02 p.m. UTC | #1
Quoting Krishna Manikandan (2021-02-03 22:42:19)
> Add bindings for Snapdragon DisplayPort controller driver.
> 
> Signed-off-by: Chandan Uddaraju <chandanu@codeaurora.org>
> Signed-off-by: Vara Reddy <varar@codeaurora.org>
> Signed-off-by: Tanmay Shah <tanmay@codeaurora.org>
> Signed-off-by: Kuogee Hsieh <khsieh@codeaurora.org>
> 
[...]
> 
> Changes in v11:
> - add ports required of both #address-cells and  #size-cells
> - add required operating-points-v2
> - add required #sound-dai-cells
> - add required power-domains
> - update maintainer list

Where's that maintainer file update?

> ---
>  .../bindings/display/msm/dp-controller.yaml        | 157 +++++++++++++++++++++
>  .../bindings/display/msm/dpu-sc7180.yaml           |  10 ++
>  2 files changed, 167 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/display/msm/dp-controller.yaml
> 
> diff --git a/Documentation/devicetree/bindings/display/msm/dp-controller.yaml b/Documentation/devicetree/bindings/display/msm/dp-controller.yaml
> new file mode 100644
> index 0000000..2b71c7a
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/display/msm/dp-controller.yaml
> @@ -0,0 +1,157 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/display/msm/dp-controller.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: MSM Display Port Controller
> +
> +maintainers:
> +  - Chandan Uddaraju <chandanu@codeaurora.org>

This email is bouncing. Please remove Chandan.

> +  - Vara Reddy <varar@codeaurora.org>
> +  - Kuogee Hsieh <khsieh@codeaurora.org>
> +
> +description: |
> +  Device tree bindings for DisplayPort host controller for MSM targets
> +  that are compatible with VESA DisplayPort interface specification.
> +
> +properties:
> +  compatible:
> +    enum:
> +      - qcom,sc7180-dp
> +
> +  reg:
> +    maxItems: 1
> +
> +  interrupts:
> +    maxItems: 1
> +
> +  clocks:
> +    items:
> +      - description: AHB clock to enable register access
> +      - description: Display Port AUX clock
> +      - description: Display Port Link clock
> +      - description: Link interface clock between DP and PHY
> +      - description: Display Port Pixel clock
> +
> +  clock-names:
> +    items:
> +      - const: core_iface
> +      - const: core_aux
> +      - const: ctrl_link
> +      - const: ctrl_link_iface
> +      - const: stream_pixel
> +
> +  phys:
> +    maxItems: 1
> +
> +  phy-names:
> +    items:
> +      - const: dp
> +
> +  operating-points-v2:
> +    maxItems: 1
> +
> +  power-domains:
> +    maxItems: 1
> +
> +  "#sound-dai-cells":
> +    const: 0
> +
> +  ports:
> +    type: object
> +    description: |
> +      A ports node with endpoint definitions as defined in
> +      Documentation/devicetree/bindings/media/video-interfaces.txt.
> +    properties:
> +      "#address-cells":
> +        const: 1
> +
> +      "#size-cells":
> +        const: 0
> +
> +      port@0:
> +        type: object
> +        description: Input endpoint of the controller
> +
> +      port@1:
> +        type: object
> +        description: Output endpoint of the controller
> +
> +    required:
> +      - "#address-cells"
> +      - "#size-cells"
> +
> +    additionalProperties: false
> +
> +
> +required:
> +  - compatible
> +  - reg
> +  - interrupts
> +  - clocks
> +  - clock-names
> +  - phys
> +  - phy-names
> +  - "#sound-dai-cells"
> +  - power-domains
> +  - ports
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    #include <dt-bindings/interrupt-controller/arm-gic.h>
> +    #include <dt-bindings/clock/qcom,dispcc-sc7180.h>
> +    #include <dt-bindings/power/qcom-aoss-qmp.h>
> +    #include <dt-bindings/power/qcom-rpmpd.h>
> +
> +    mdss@ae00000 {

mdss is not a standard node name. Maybe 'subsystem'?

> +      #address-cells = <2>;
> +      #size-cells = <2>;
> +      reg = <0xae00000 0x1000>,   /* mdss */
> +            <0xae90000 0x1400>;   /* dp */

This second reg property shouldn't be here.

> +      reg-names = "mdss", "dp";
> +
> +      displayport-controller@ae90000 {
Kuogee Hsieh Feb. 5, 2021, 8:55 p.m. UTC | #2
On 2021-02-05 11:02, Stephen Boyd wrote:
> Quoting Krishna Manikandan (2021-02-03 22:42:19)
>> Add bindings for Snapdragon DisplayPort controller driver.
>> 
>> Signed-off-by: Chandan Uddaraju <chandanu@codeaurora.org>
>> Signed-off-by: Vara Reddy <varar@codeaurora.org>
>> Signed-off-by: Tanmay Shah <tanmay@codeaurora.org>
>> Signed-off-by: Kuogee Hsieh <khsieh@codeaurora.org>
>> 
> [...]
>> 
>> Changes in v11:
>> - add ports required of both #address-cells and  #size-cells
>> - add required operating-points-v2
>> - add required #sound-dai-cells
>> - add required power-domains
>> - update maintainer list
> 
> Where's that maintainer file update?
I had deleted Tanmay.
Anyway, I will removed Chandan at next upload.
> 
>> ---
>>  .../bindings/display/msm/dp-controller.yaml        | 157 
>> +++++++++++++++++++++
>>  .../bindings/display/msm/dpu-sc7180.yaml           |  10 ++
>>  2 files changed, 167 insertions(+)
>>  create mode 100644 
>> Documentation/devicetree/bindings/display/msm/dp-controller.yaml
>> 
>> diff --git 
>> a/Documentation/devicetree/bindings/display/msm/dp-controller.yaml 
>> b/Documentation/devicetree/bindings/display/msm/dp-controller.yaml
>> new file mode 100644
>> index 0000000..2b71c7a
>> --- /dev/null
>> +++ b/Documentation/devicetree/bindings/display/msm/dp-controller.yaml
>> @@ -0,0 +1,157 @@
>> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
>> +%YAML 1.2
>> +---
>> +$id: http://devicetree.org/schemas/display/msm/dp-controller.yaml#
>> +$schema: http://devicetree.org/meta-schemas/core.yaml#
>> +
>> +title: MSM Display Port Controller
>> +
>> +maintainers:
>> +  - Chandan Uddaraju <chandanu@codeaurora.org>
> 
> This email is bouncing. Please remove Chandan.
ok
> 
>> +  - Vara Reddy <varar@codeaurora.org>
>> +  - Kuogee Hsieh <khsieh@codeaurora.org>
>> +
>> +description: |
>> +  Device tree bindings for DisplayPort host controller for MSM 
>> targets
>> +  that are compatible with VESA DisplayPort interface specification.
>> +
>> +properties:
>> +  compatible:
>> +    enum:
>> +      - qcom,sc7180-dp
>> +
>> +  reg:
>> +    maxItems: 1
>> +
>> +  interrupts:
>> +    maxItems: 1
>> +
>> +  clocks:
>> +    items:
>> +      - description: AHB clock to enable register access
>> +      - description: Display Port AUX clock
>> +      - description: Display Port Link clock
>> +      - description: Link interface clock between DP and PHY
>> +      - description: Display Port Pixel clock
>> +
>> +  clock-names:
>> +    items:
>> +      - const: core_iface
>> +      - const: core_aux
>> +      - const: ctrl_link
>> +      - const: ctrl_link_iface
>> +      - const: stream_pixel
>> +
>> +  phys:
>> +    maxItems: 1
>> +
>> +  phy-names:
>> +    items:
>> +      - const: dp
>> +
>> +  operating-points-v2:
>> +    maxItems: 1
>> +
>> +  power-domains:
>> +    maxItems: 1
>> +
>> +  "#sound-dai-cells":
>> +    const: 0
>> +
>> +  ports:
>> +    type: object
>> +    description: |
>> +      A ports node with endpoint definitions as defined in
>> +      Documentation/devicetree/bindings/media/video-interfaces.txt.
>> +    properties:
>> +      "#address-cells":
>> +        const: 1
>> +
>> +      "#size-cells":
>> +        const: 0
>> +
>> +      port@0:
>> +        type: object
>> +        description: Input endpoint of the controller
>> +
>> +      port@1:
>> +        type: object
>> +        description: Output endpoint of the controller
>> +
>> +    required:
>> +      - "#address-cells"
>> +      - "#size-cells"
>> +
>> +    additionalProperties: false
>> +
>> +
>> +required:
>> +  - compatible
>> +  - reg
>> +  - interrupts
>> +  - clocks
>> +  - clock-names
>> +  - phys
>> +  - phy-names
>> +  - "#sound-dai-cells"
>> +  - power-domains
>> +  - ports
>> +
>> +additionalProperties: false
>> +
>> +examples:
>> +  - |
>> +    #include <dt-bindings/interrupt-controller/arm-gic.h>
>> +    #include <dt-bindings/clock/qcom,dispcc-sc7180.h>
>> +    #include <dt-bindings/power/qcom-aoss-qmp.h>
>> +    #include <dt-bindings/power/qcom-rpmpd.h>
>> +
>> +    mdss@ae00000 {
> 
> mdss is not a standard node name. Maybe 'subsystem'?
Can you give me more details regrading this.
I had double checked both ti/ti,am65x-dss.yaml and msm/dsi-phy.yaml and 
can not find any clue for this.
Can I just followed msm/dsi-phy.yaml for this?
> 
>> +      #address-cells = <2>;
>> +      #size-cells = <2>;
>> +      reg = <0xae00000 0x1000>,   /* mdss */
>> +            <0xae90000 0x1400>;   /* dp */
> 
> This second reg property shouldn't be here.
ok
> 
>> +      reg-names = "mdss", "dp";
>> +
>> +      displayport-controller@ae90000 {
Stephen Boyd Feb. 5, 2021, 10:38 p.m. UTC | #3
Quoting khsieh@codeaurora.org (2021-02-05 12:55:47)
> On 2021-02-05 11:02, Stephen Boyd wrote:
> > Quoting Krishna Manikandan (2021-02-03 22:42:19)
> >> Add bindings for Snapdragon DisplayPort controller driver.
> >> 
> >> Signed-off-by: Chandan Uddaraju <chandanu@codeaurora.org>
> >> Signed-off-by: Vara Reddy <varar@codeaurora.org>
> >> Signed-off-by: Tanmay Shah <tanmay@codeaurora.org>
> >> Signed-off-by: Kuogee Hsieh <khsieh@codeaurora.org>

Krishna is sending these patches, so there should be an SoB line here
from Krishna. Please add it next time.

> >> 
> > [...]
> >> 
> >> Changes in v11:
> >> - add ports required of both #address-cells and  #size-cells
> >> - add required operating-points-v2
> >> - add required #sound-dai-cells
> >> - add required power-domains
> >> - update maintainer list
> > 
> > Where's that maintainer file update?
> I had deleted Tanmay.
> Anyway, I will removed Chandan at next upload.

Ok.

> > 
> >> ---
> >>  .../bindings/display/msm/dp-controller.yaml        | 157 
> >> +++++++++++++++++++++
> >>  .../bindings/display/msm/dpu-sc7180.yaml           |  10 ++
> >>  2 files changed, 167 insertions(+)
> >>  create mode 100644 
> >> Documentation/devicetree/bindings/display/msm/dp-controller.yaml
> >> 
> >> diff --git 
> >> a/Documentation/devicetree/bindings/display/msm/dp-controller.yaml 
> >> b/Documentation/devicetree/bindings/display/msm/dp-controller.yaml
> >> new file mode 100644
> >> index 0000000..2b71c7a
> >> --- /dev/null
> >> +++ b/Documentation/devicetree/bindings/display/msm/dp-controller.yaml
> >> @@ -0,0 +1,157 @@
> >> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
[...]
> >> +required:
> >> +  - compatible
> >> +  - reg
> >> +  - interrupts
> >> +  - clocks
> >> +  - clock-names
> >> +  - phys
> >> +  - phy-names
> >> +  - "#sound-dai-cells"
> >> +  - power-domains
> >> +  - ports
> >> +
> >> +additionalProperties: false
> >> +
> >> +examples:
> >> +  - |
> >> +    #include <dt-bindings/interrupt-controller/arm-gic.h>
> >> +    #include <dt-bindings/clock/qcom,dispcc-sc7180.h>
> >> +    #include <dt-bindings/power/qcom-aoss-qmp.h>
> >> +    #include <dt-bindings/power/qcom-rpmpd.h>
> >> +
> >> +    mdss@ae00000 {
> > 
> > mdss is not a standard node name. Maybe 'subsystem'?
> Can you give me more details regrading this.
> I had double checked both ti/ti,am65x-dss.yaml and msm/dsi-phy.yaml and 
> can not find any clue for this.
> Can I just followed msm/dsi-phy.yaml for this?

Please look at section "2.2.2 Generic Names Recommendation" of the DT
spec[1] to find a proper name. I don't see 'subsystem' there but that
may be because it shouldn't really exist as a node. Instead we should
have the child nodes sit directly under the SoC node.

[1] https://github.com/devicetree-org/devicetree-specification/releases/download/v0.3/devicetree-specification-v0.3.pdf
diff mbox series

Patch

diff --git a/Documentation/devicetree/bindings/display/msm/dp-controller.yaml b/Documentation/devicetree/bindings/display/msm/dp-controller.yaml
new file mode 100644
index 0000000..2b71c7a
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/msm/dp-controller.yaml
@@ -0,0 +1,157 @@ 
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/msm/dp-controller.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: MSM Display Port Controller
+
+maintainers:
+  - Chandan Uddaraju <chandanu@codeaurora.org>
+  - Vara Reddy <varar@codeaurora.org>
+  - Kuogee Hsieh <khsieh@codeaurora.org>
+
+description: |
+  Device tree bindings for DisplayPort host controller for MSM targets
+  that are compatible with VESA DisplayPort interface specification.
+
+properties:
+  compatible:
+    enum:
+      - qcom,sc7180-dp
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  clocks:
+    items:
+      - description: AHB clock to enable register access
+      - description: Display Port AUX clock
+      - description: Display Port Link clock
+      - description: Link interface clock between DP and PHY
+      - description: Display Port Pixel clock
+
+  clock-names:
+    items:
+      - const: core_iface
+      - const: core_aux
+      - const: ctrl_link
+      - const: ctrl_link_iface
+      - const: stream_pixel
+
+  phys:
+    maxItems: 1
+
+  phy-names:
+    items:
+      - const: dp
+
+  operating-points-v2:
+    maxItems: 1
+
+  power-domains:
+    maxItems: 1
+
+  "#sound-dai-cells":
+    const: 0
+
+  ports:
+    type: object
+    description: |
+      A ports node with endpoint definitions as defined in
+      Documentation/devicetree/bindings/media/video-interfaces.txt.
+    properties:
+      "#address-cells":
+        const: 1
+
+      "#size-cells":
+        const: 0
+
+      port@0:
+        type: object
+        description: Input endpoint of the controller
+
+      port@1:
+        type: object
+        description: Output endpoint of the controller
+
+    required:
+      - "#address-cells"
+      - "#size-cells"
+
+    additionalProperties: false
+
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - clocks
+  - clock-names
+  - phys
+  - phy-names
+  - "#sound-dai-cells"
+  - power-domains
+  - ports
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    #include <dt-bindings/clock/qcom,dispcc-sc7180.h>
+    #include <dt-bindings/power/qcom-aoss-qmp.h>
+    #include <dt-bindings/power/qcom-rpmpd.h>
+
+    mdss@ae00000 {
+      #address-cells = <2>;
+      #size-cells = <2>;
+      reg = <0xae00000 0x1000>,   /* mdss */
+            <0xae90000 0x1400>;   /* dp */
+      reg-names = "mdss", "dp";
+
+      displayport-controller@ae90000 {
+        compatible = "qcom,sc7180-dp";
+        reg = <0 0xae90000 0 0x1400>;
+        interrupt-parent = <&mdss>;
+        interrupts = <12>;
+        clocks = <&dispcc DISP_CC_MDSS_AHB_CLK>,
+                 <&dispcc DISP_CC_MDSS_DP_AUX_CLK>,
+                 <&dispcc DISP_CC_MDSS_DP_LINK_CLK>,
+                 <&dispcc DISP_CC_MDSS_DP_LINK_INTF_CLK>,
+                 <&dispcc DISP_CC_MDSS_DP_PIXEL_CLK>;
+        clock-names = "core_iface", "core_aux",
+                      "ctrl_link",
+                      "ctrl_link_iface", "stream_pixel";
+
+        phys = <&dp_phy>;
+        phy-names = "dp";
+
+        #sound-dai-cells = <0>;
+
+        power-domains = <&rpmhpd SC7180_CX>;
+
+        ports {
+            #address-cells = <1>;
+            #size-cells = <0>;
+
+            port@0 {
+                reg = <0>;
+                endpoint {
+                    remote-endpoint = <&dpu_intf0_out>;
+                };
+            };
+
+            port@1 {
+                reg = <1>;
+                endpoint {
+                    remote-endpoint = <&typec>;
+                };
+            };
+        };
+      };
+    };
+...
diff --git a/Documentation/devicetree/bindings/display/msm/dpu-sc7180.yaml b/Documentation/devicetree/bindings/display/msm/dpu-sc7180.yaml
index 9e7c314..b7cf191 100644
--- a/Documentation/devicetree/bindings/display/msm/dpu-sc7180.yaml
+++ b/Documentation/devicetree/bindings/display/msm/dpu-sc7180.yaml
@@ -131,6 +131,9 @@  patternProperties:
           port@1:
             type: object
             description: DPU_INTF2 (DSI2)
+          port@2:
+            type: object
+            description: DPU_INTF0 (DP)
 
 required:
   - compatible
@@ -206,6 +209,13 @@  examples:
                                                   remote-endpoint = <&dsi0_in>;
                                    };
                            };
+
+                            port@2 {
+                                    reg = <2>;
+                                    dpu_intf0_out: endpoint {
+                                                   remote-endpoint = <&dp_in>;
+                                    };
+                            };
                    };
          };
       };