diff mbox series

[v1,1/2] dt-bindings: msm/dsi: Add 10nm dsi phy tuning properties

Message ID 1640856276-14697-2-git-send-email-quic_rajeevny@quicinc.com
State New
Headers show
Series drm/msm/dsi: Add 10nm dsi phy tuning configuration support | expand

Commit Message

Rajeev Nandan Dec. 30, 2021, 9:24 a.m. UTC
Add 10nm dsi phy tuning properties for phy drive strength and
phy drive level adjustemnt.

Signed-off-by: Rajeev Nandan <quic_rajeevny@quicinc.com>
---
 .../devicetree/bindings/display/msm/dsi-phy-10nm.yaml | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

Comments

Dmitry Baryshkov Dec. 30, 2021, 2 p.m. UTC | #1
On Thu, 30 Dec 2021 at 12:25, Rajeev Nandan <quic_rajeevny@quicinc.com> wrote:
>
> Add 10nm dsi phy tuning properties for phy drive strength and
> phy drive level adjustemnt.
>
> Signed-off-by: Rajeev Nandan <quic_rajeevny@quicinc.com>
> ---
>  .../devicetree/bindings/display/msm/dsi-phy-10nm.yaml | 19 +++++++++++++++++++
>  1 file changed, 19 insertions(+)
>
> diff --git a/Documentation/devicetree/bindings/display/msm/dsi-phy-10nm.yaml b/Documentation/devicetree/bindings/display/msm/dsi-phy-10nm.yaml
> index 4399715..9406982 100644
> --- a/Documentation/devicetree/bindings/display/msm/dsi-phy-10nm.yaml
> +++ b/Documentation/devicetree/bindings/display/msm/dsi-phy-10nm.yaml
> @@ -35,6 +35,18 @@ properties:
>        Connected to DSI0_MIPI_DSI_PLL_VDDA0P9 pin for sc7180 target and
>        connected to VDDA_MIPI_DSI_0_PLL_0P9 pin for sdm845 target
>
> +  phy-drive-strength-cfg:
> +    type: array
> +    description:
> +      Register values of DSIPHY_RESCODE_OFFSET_TOP and DSIPHY_RESCODE_OFFSET_BOT
> +      for all five lanes to adjust the phy drive strength.
> +
> +  phy-drive-level-cfg:
> +    type: array
> +    description:
> +      Register values of DSIPHY_RESCODE_OFFSET_TOP for all five lanes to adjust
> +      phy drive level/amplitude.


Description is incorrect, it's not the RESCODE_OFFSET_TOP register.

> +
>  required:
>    - compatible
>    - reg
> @@ -64,5 +76,12 @@ examples:
>           clocks = <&dispcc DISP_CC_MDSS_AHB_CLK>,
>                    <&rpmhcc RPMH_CXO_CLK>;
>           clock-names = "iface", "ref";
> +
> +         phy-drive-strength-cfg = [00 00
> +                                   00 00
> +                                   00 00
> +                                   00 00
> +                                   00 00];
> +         phy-drive-level-cfg = [59 59 59 59 59];

You are writing this value into the PHY_CMN_VREG_CTRL register. So
specifying 5 values here does not make sense.

>       };
>  ...
> --
> 2.7.4
>
Rob Herring (Arm) Jan. 1, 2022, 10:01 p.m. UTC | #2
On Thu, 30 Dec 2021 14:54:35 +0530, Rajeev Nandan wrote:
> Add 10nm dsi phy tuning properties for phy drive strength and
> phy drive level adjustemnt.
> 
> Signed-off-by: Rajeev Nandan <quic_rajeevny@quicinc.com>
> ---
>  .../devicetree/bindings/display/msm/dsi-phy-10nm.yaml | 19 +++++++++++++++++++
>  1 file changed, 19 insertions(+)
> 

My bot found errors running 'make DT_CHECKER_FLAGS=-m dt_binding_check'
on your patch (DT_CHECKER_FLAGS is new in v5.13):

yamllint warnings/errors:

dtschema/dtc warnings/errors:
/builds/robherring/linux-dt-review/Documentation/devicetree/bindings/display/msm/dsi-phy-10nm.yaml: properties:phy-drive-strength-cfg:type: 'array' is not one of ['boolean', 'object']
	from schema $id: http://devicetree.org/meta-schemas/core.yaml#
/builds/robherring/linux-dt-review/Documentation/devicetree/bindings/display/msm/dsi-phy-10nm.yaml: properties:phy-drive-level-cfg:type: 'array' is not one of ['boolean', 'object']
	from schema $id: http://devicetree.org/meta-schemas/core.yaml#
/builds/robherring/linux-dt-review/Documentation/devicetree/bindings/display/msm/dsi-phy-10nm.yaml: ignoring, error in schema: properties: phy-drive-strength-cfg: type
Documentation/devicetree/bindings/display/msm/dsi-phy-10nm.example.dt.yaml:0:0: /example-0/dsi-phy@ae94400: failed to match any schema with compatible: ['qcom,dsi-phy-10nm']

doc reference errors (make refcheckdocs):

See https://patchwork.ozlabs.org/patch/1574124

This check can fail if there are any dependencies. The base for a patch
series is generally the most recent rc1.

If you already ran 'make dt_binding_check' and didn't see the above
error(s), then make sure 'yamllint' is installed and dt-schema is up to
date:

pip3 install dtschema --upgrade

Please check and re-submit.
diff mbox series

Patch

diff --git a/Documentation/devicetree/bindings/display/msm/dsi-phy-10nm.yaml b/Documentation/devicetree/bindings/display/msm/dsi-phy-10nm.yaml
index 4399715..9406982 100644
--- a/Documentation/devicetree/bindings/display/msm/dsi-phy-10nm.yaml
+++ b/Documentation/devicetree/bindings/display/msm/dsi-phy-10nm.yaml
@@ -35,6 +35,18 @@  properties:
       Connected to DSI0_MIPI_DSI_PLL_VDDA0P9 pin for sc7180 target and
       connected to VDDA_MIPI_DSI_0_PLL_0P9 pin for sdm845 target
 
+  phy-drive-strength-cfg:
+    type: array
+    description:
+      Register values of DSIPHY_RESCODE_OFFSET_TOP and DSIPHY_RESCODE_OFFSET_BOT
+      for all five lanes to adjust the phy drive strength.
+
+  phy-drive-level-cfg:
+    type: array
+    description:
+      Register values of DSIPHY_RESCODE_OFFSET_TOP for all five lanes to adjust
+      phy drive level/amplitude.
+
 required:
   - compatible
   - reg
@@ -64,5 +76,12 @@  examples:
          clocks = <&dispcc DISP_CC_MDSS_AHB_CLK>,
                   <&rpmhcc RPMH_CXO_CLK>;
          clock-names = "iface", "ref";
+
+         phy-drive-strength-cfg = [00 00
+                                   00 00
+                                   00 00
+                                   00 00
+                                   00 00];
+         phy-drive-level-cfg = [59 59 59 59 59];
      };
 ...