Re: [PATCH v1] arm64: dts: qcom: msm8998: add HDMI GPIOs

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On Mon, 3 Jun 2024 at 16:06, Marc Gonzalez <mgonzalez@xxxxxxxxxx> wrote:
>
> On 30/05/2024 18:50, Dmitry Baryshkov wrote:
>
> > Ok, you have dropped several clocks, which I think might be required
> > for the device to function. For example, msm8996 doesn't have
> > MNOC_AHB_CLK, while msm8998 has it. It might be that we should be
> > enabling the clock via the interconnect driver instead (or maybe it is
> > handled by RPM?).
> >
> > Let's hope that we can sort the clocks. I have no other issues remaining.
>
> For quick reference:
>
> msm8996-sde.dtsi (VENDOR)
>
>         sde_hdmi_tx: qcom,hdmi_tx_8996@9a0000 {
>                 compatible = "qcom,hdmi-tx-8996";
>
>                 reg =   <0x009a0000 0x50c>,
>                         <0x00070000 0x6158>,
>                         <0x009e0000 0xfff>;
>                 reg-names = "core_physical",
>                         "qfprom_physical",
>                         "hdcp_physical";
>                 clocks = <&clock_mmss clk_mdss_mdp_vote_clk>,
>                          <&clock_mmss clk_mdss_ahb_clk>,
>                          <&clock_mmss clk_mdss_hdmi_clk>,
>                          <&clock_mmss clk_mdss_hdmi_ahb_clk>,
>                          <&clock_mmss clk_mdss_extpclk_clk>;
>                 clock-names =
>                         "mdp_core_clk",
>                         "iface_clk",
>                         "core_clk",
>                         "alt_iface_clk",
>                         "extp_clk";
>                 interrupt-parent = <&sde_kms>;
>                 interrupts = <8 0>;
>                 hpd-gdsc-supply = <&gdsc_mdss>;
>                 qcom,hdmi-tx-hpd-gpio = <&pm8994_mpps 4 0>;
>                 pinctrl-names = "default", "sleep";
>                 pinctrl-0 = <&mdss_hdmi_hpd_active
>                              &mdss_hdmi_ddc_active
>                              &mdss_hdmi_cec_active>;
>                 pinctrl-1 = <&mdss_hdmi_hpd_suspend
>                              &mdss_hdmi_ddc_suspend
>                              &mdss_hdmi_cec_suspend>;
>
>                 sde_hdmi_audio: qcom,sde-hdmi-audio-rx {
>                         compatible = "qcom,msm-hdmi-audio-codec-rx";
>                 };
>         };
>
>
>
> msm8996.dtsi (MAINLINE)
>
>                         mdss_hdmi: hdmi-tx@9a0000 {
>                                 compatible = "qcom,hdmi-tx-8996";
>                                 reg = <0x009a0000 0x50c>,
>                                       <0x00070000 0x6158>,
>                                       <0x009e0000 0xfff>;
>                                 reg-names = "core_physical",
>                                             "qfprom_physical",
>                                             "hdcp_physical";
>
>                                 interrupt-parent = <&mdss>;
>                                 interrupts = <8>;
>
>                                 clocks = <&mmcc MDSS_MDP_CLK>,
>                                          <&mmcc MDSS_AHB_CLK>,
>                                          <&mmcc MDSS_HDMI_CLK>,
>                                          <&mmcc MDSS_HDMI_AHB_CLK>,
>                                          <&mmcc MDSS_EXTPCLK_CLK>;
>                                 clock-names =
>                                         "mdp_core",
>                                         "iface",
>                                         "core",
>                                         "alt_iface",
>                                         "extp";
>
>                                 phys = <&mdss_hdmi_phy>;
>                                 #sound-dai-cells = <1>;
>
>                                 status = "disabled";
>
>                                 ports {
>                                         #address-cells = <1>;
>                                         #size-cells = <0>;
>
>                                         port@0 {
>                                                 reg = <0>;
>                                                 mdss_hdmi_in: endpoint {
>                                                         remote-endpoint = <&mdp5_intf3_out>;
>                                                 };
>                                         };
>                                 };
>                         };
>
>
>
> msm8998-sde.dtsi (VENDOR)
>
>         sde_hdmi_tx: qcom,hdmi_tx_8998@c9a0000 {
>                 cell-index = <0>;
>                 compatible = "qcom,hdmi-tx-8998";
>                 reg =   <0xc9a0000 0x50c>,
>                         <0x780000 0x621c>,
>                         <0xc9e0000 0x28>;
>                 reg-names = "core_physical", "qfprom_physical", "hdcp_physical";
>                 interrupt-parent = <&sde_kms>;
>                 interrupts = <8 0>;
>                 interrupt-controller;
>                 #interrupt-cells = <1>;
>                 qcom,hdmi-tx-ddc-clk-gpio = <&tlmm 32 0>;
>                 qcom,hdmi-tx-ddc-data-gpio = <&tlmm 33 0>;
>                 qcom,hdmi-tx-hpd-gpio = <&tlmm 34 0>;
>                 qcom,hdmi-tx-hpd5v-gpio = <&tlmm 133 0>;
>                 pinctrl-names = "default", "sleep";
>                 pinctrl-0 = <&mdss_hdmi_hpd_active
>                         &mdss_hdmi_ddc_active
>                         &mdss_hdmi_5v_active>;
>                 pinctrl-1 = <&mdss_hdmi_hpd_suspend
>                         &mdss_hdmi_ddc_suspend
>                         &mdss_hdmi_5v_suspend>;
>                 hpd-gdsc-supply = <&gdsc_mdss>;
>                 qcom,supply-names = "hpd-gdsc";
>                 qcom,min-voltage-level = <0>;
>                 qcom,max-voltage-level = <0>;
>                 qcom,enable-load = <0>;
>                 qcom,disable-load = <0>;
>
>                 clocks = <&clock_mmss clk_mmss_mnoc_ahb_clk>,
>                          <&clock_mmss clk_mmss_mdss_ahb_clk>,
>                          <&clock_mmss clk_mmss_mdss_hdmi_clk>,
>                          <&clock_mmss clk_mmss_mdss_mdp_clk>,
>                          <&clock_mmss clk_mmss_mdss_hdmi_dp_ahb_clk>,
>                          <&clock_mmss clk_mmss_mdss_extpclk_clk>,
>                          <&clock_mmss clk_mmss_mnoc_ahb_clk>,
>                          <&clock_mmss clk_mmss_misc_ahb_clk>,
>                          <&clock_mmss clk_mmss_mdss_axi_clk>;
>                 clock-names = "hpd_mnoc_clk", "hpd_iface_clk",
>                                 "hpd_core_clk", "hpd_mdp_core_clk",
>                                 "hpd_alt_iface_clk", "core_extp_clk",
>                                 "mnoc_clk","hpd_misc_ahb_clk",
>                                 "hpd_bus_clk";
>
>                 /*qcom,mdss-fb-map = <&mdss_fb2>;*/
>                 qcom,pluggable;
>         };
>
>
>
> IIUC the discussion on IRC, the additional clocks are required,
> so the binding should be more like this:
>
> +++ b/Documentation/devicetree/bindings/display/msm/hdmi.yaml
> @@ -19,14 +19,15 @@ properties:
>        - qcom,hdmi-tx-8974
>        - qcom,hdmi-tx-8994
>        - qcom,hdmi-tx-8996
> +      - qcom,hdmi-tx-8998
>
>    clocks:
>      minItems: 1
> -    maxItems: 5
> +    maxItems: 8
>
>    clock-names:
>      minItems: 1
> -    maxItems: 5
> +    maxItems: 8
>
>    reg:
>      minItems: 1
> @@ -151,6 +152,27 @@ allOf:
>              - const: extp
>          hdmi-mux-supplies: false
>
> +  - if:
> +      properties:
> +        compatible:
> +          contains:
> +            enum:
> +              - qcom,hdmi-tx-8998
> +    then:
> +      properties:
> +        clocks:
> +          minItems: 8
> +        clock-names:
> +          items:
> +            - const: mdp_core
> +            - const: mnoc
> +            - const: iface
> +            - const: bus
> +            - const: iface_mmss
> +            - const: core
> +            - const: alt_iface
> +            - const: extp
>
>
>
> So this is good?

Yes

>
>                                 clocks = <&mmcc MDSS_MDP_CLK>,
>                                          <&mmcc MNOC_AHB_CLK>,
>                                          <&mmcc MDSS_AHB_CLK>,
>                                          <&mmcc MDSS_AXI_CLK>,
>                                          <&mmcc MISC_AHB_CLK>,
>                                          <&mmcc MDSS_HDMI_CLK>,
>                                          <&mmcc MDSS_HDMI_DP_AHB_CLK>,
>                                          <&mmcc MDSS_EXTPCLK_CLK>;
>                                 clock-names =
>                                         "mdp_core",
>                                         "mnoc",
>                                         "iface",
>                                         "bus",
>                                         "iface_mmss",
>                                         "core",
>                                         "alt_iface",
>                                         "extp";
>


-- 
With best wishes
Dmitry




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