Re: [PATCH v2 1/5] dt-bindings: display/msm: Document MDSS on SA8775P

[Mahadevan P]

On 9/26/2024 6:54 PM, Bjorn Andersson wrote:
> On Thu, Sep 26, 2024 at 04:31:33PM +0530, Mahadevan wrote:
> > Document the MDSS hardware found on the Qualcomm SA8775P platform.
> >
> > Signed-off-by: Mahadevan <quic_mahap@xxxxxxxxxxx>
> > ---
> >
> > [v2]
> > - Use fake DISPCC nodes to avoid clock dependencies in dt-bindings. [Dmitry]
> > - Update bindings by fixing dt_binding_check tool errors (update includes in example),
> >    adding proper spacing and indentation in binding example, dropping unused labels,
> >    dropping status disable, adding reset node. [Dmitry, Rob, Krzysztof]
> No concerns with the changelog, but please adopt b4 (go/upstream has
> instructions) for sending patches upstream.


Sure, will follow while posting next patch.


> > ---
> >   .../display/msm/qcom,sa8775p-mdss.yaml        | 239 ++++++++++++++++++
> >   1 file changed, 239 insertions(+)
> >   create mode 100644 Documentation/devicetree/bindings/display/msm/qcom,sa8775p-mdss.yaml
> >
> > diff --git a/Documentation/devicetree/bindings/display/msm/qcom,sa8775p-mdss.yaml b/Documentation/devicetree/bindings/display/msm/qcom,sa8775p-mdss.yaml
> > new file mode 100644
> > index 000000000000..e610b66ffa9f
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/display/msm/qcom,sa8775p-mdss.yaml
> > @@ -0,0 +1,239 @@
> > +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
> > +%YAML 1.2
> > +---
> > +$id: http://devicetree.org/schemas/display/msm/qcom,sa8775p-mdss.yaml#
> > +$schema: http://devicetree.org/meta-schemas/core.yaml#
> > +
> > +title: Qualcomm Technologies, Inc. SA87755P Display MDSS
> > +
> > +maintainers:
> > +  - Mahadevan <quic_mahap@xxxxxxxxxxx>
> Please use Firstname Lastname, if possible


My name has only First name,  can I please go ahead with this.


> > +
> > +description:
> > +  SA8775P MSM Mobile Display Subsystem(MDSS), which encapsulates sub-blocks like
> > +  DPU display controller, DP interfaces and EDP etc.
> > +
> > +$ref: /schemas/display/msm/mdss-common.yaml#
> > +
> [..]
> > +
> > +examples:
> > +  - |
> > +    #include <dt-bindings/interconnect/qcom,icc.h>
> > +    #include <dt-bindings/interrupt-controller/arm-gic.h>
> > +    #include <dt-bindings/clock/qcom,sa8775p-gcc.h>
> > +    #include <dt-bindings/interconnect/qcom,sa8775p-rpmh.h>
> > +    #include <dt-bindings/power/qcom,rpmhpd.h>
> > +    #include <dt-bindings/power/qcom-rpmpd.h>
> > +
> > +    display-subsystem@ae00000 {
> > +        compatible = "qcom,sa8775p-mdss";
> > +        reg = <0 0x0ae00000 0 0x1000>;
> #address-cells and #size-cells are 1 in the example root node, so drop
> the two 0 entries.
>
> > +        reg-names = "mdss";
> > +
> > +        /* same path used twice */
> What do you mean? All three paths below are unique.


Yes all three are paths are unique, its same sm8450-mdss.
Will remove the comment /* same path used twice */.


> > +        interconnects = <&mmss_noc MASTER_MDP0 0 &mc_virt SLAVE_EBI1 0>,
> > +                        <&mmss_noc MASTER_MDP1 0 &mc_virt SLAVE_EBI1 0>,
> > +                        <&gem_noc MASTER_APPSS_PROC QCOM_ICC_TAG_ACTIVE_ONLY
> > +                        &config_noc SLAVE_DISPLAY_CFG QCOM_ICC_TAG_ACTIVE_ONLY>;
> > +        interconnect-names = "mdp0-mem",
> > +                             "mdp1-mem",
> > +                             "cpu-cfg";
> > +
> > +
> Regards,
> Bjorn


Thanks,
Mahadevan