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Date: Wed, 8 Feb 2023 09:14:46 +0100
From: Konrad Dybcio <konrad.dybcio@...aro.org>
To: Bjorn Andersson <quic_bjorande@...cinc.com>,
Andy Gross <agross@...nel.org>,
Bjorn Andersson <andersson@...nel.org>
Cc: Rob Herring <robh+dt@...nel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
Catalin Marinas <catalin.marinas@....com>,
Will Deacon <will@...nel.org>, linux-arm-msm@...r.kernel.org,
devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH 2/4] arm64: dts: qcom: sc8280xp-crd: Introduce pmic_glink
On 8.02.2023 04:46, Bjorn Andersson wrote:
> From: Bjorn Andersson <bjorn.andersson@...aro.org>
>
> The SC8280XP CRD control over battery management and its two USB Type-C
> port using pmic_glink and two GPIO-based SBU muxes.
>
> Enable the two DisplayPort instances, GPIO SBU mux instance and
> pmic_glink with the two connectors on the CRD.
>
> Signed-off-by: Bjorn Andersson <bjorn.andersson@...aro.org>
> Signed-off-by: Bjorn Andersson <quic_bjorande@...cinc.com>
> ---
> arch/arm64/boot/dts/qcom/sc8280xp-crd.dts | 191 +++++++++++++++++++++-
> 1 file changed, 189 insertions(+), 2 deletions(-)
>
> diff --git a/arch/arm64/boot/dts/qcom/sc8280xp-crd.dts b/arch/arm64/boot/dts/qcom/sc8280xp-crd.dts
> index 3f116a879e22..35b63c3962f0 100644
> --- a/arch/arm64/boot/dts/qcom/sc8280xp-crd.dts
> +++ b/arch/arm64/boot/dts/qcom/sc8280xp-crd.dts
> @@ -36,6 +36,77 @@ chosen {
> stdout-path = "serial0:115200n8";
> };
>
> + pmic-glink {
> + compatible = "qcom,sc8280xp-pmic-glink", "qcom,pmic-glink";
> +
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + connector@0 {
> + compatible = "usb-c-connector";
> + reg = <0>;
> + power-role = "dual";
> + data-role = "dual";
> +
> + ports {
> + #address-cells = <1>;
> + #size-cells = <0>;
Add a newline between the last propreties and first subnodes, please.
> + port@0 {
> + reg = <0>;
> + pmic_glink_con0_hs: endpoint {
> + remote-endpoint = <&usb_0_role_switch>;
> + };
> + };
> +
> + port@1 {
> + reg = <1>;
> + pmic_glink_con0_ss: endpoint {
> + remote-endpoint = <&mdss0_dp0_out>;
> + };
> + };
> +
> + port@2 {
> + reg = <2>;
> + pmic_glink_con0_sbu: endpoint {
> + remote-endpoint = <&usb0_sbu_mux>;
> + };
> + };
> + };
> + };
> +
> + connector@1 {
> + compatible = "usb-c-connector";
> + reg = <1>;
> + power-role = "dual";
> + data-role = "dual";
> +
> + ports {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + port@0 {
> + reg = <0>;
> + pmic_glink_con1_hs: endpoint {
> + remote-endpoint = <&usb_1_role_switch>;
> + };
> + };
> +
> + port@1 {
> + reg = <1>;
> + pmic_glink_con1_ss: endpoint {
> + remote-endpoint = <&mdss0_dp1_out>;
> + };
> + };
> +
> + port@2 {
> + reg = <2>;
> + pmic_glink_con1_sbu: endpoint {
> + remote-endpoint = <&usb1_sbu_mux>;
> + };
> + };
> + };
> + };
> + };
> +
> vreg_edp_3p3: regulator-edp-3p3 {
> compatible = "regulator-fixed";
>
> @@ -139,6 +210,46 @@ linux,cma {
> linux,cma-default;
> };
> };
> +
> + usb0-sbu-mux {
> + compatible = "pericom,pi3usb102", "gpio-sbu-mux";
> +
> + enable-gpios = <&tlmm 101 GPIO_ACTIVE_LOW>;
> + select-gpios = <&tlmm 164 GPIO_ACTIVE_HIGH>;
> +
> + pinctrl-names = "default";
> + pinctrl-0 = <&usb0_sbu_default>;
> +
> + mode-switch;
> + orientation-switch;
> + svid = /bits/ 16 <0xff01>;
> +
> + port {
> + usb0_sbu_mux: endpoint {
> + remote-endpoint = <&pmic_glink_con0_sbu>;
> + };
> + };
> + };
> +
> + usb1-sbu-mux {
> + compatible = "pericom,pi3usb102", "gpio-sbu-mux";
> +
> + enable-gpios = <&tlmm 48 GPIO_ACTIVE_LOW>;
> + select-gpios = <&tlmm 47 GPIO_ACTIVE_HIGH>;
> +
> + pinctrl-names = "default";
> + pinctrl-0 = <&usb1_sbu_default>;
> +
> + mode-switch;
> + orientation-switch;
> + svid = /bits/ 16 <0xff01>;
> +
> + port {
> + usb1_sbu_mux: endpoint {
> + remote-endpoint = <&pmic_glink_con1_sbu>;
> + };
> + };
> + };
> };
>
> &apps_rsc {
> @@ -262,6 +373,36 @@ &mdss0 {
> status = "okay";
> };
>
> +&mdss0_dp0 {
> + status = "okay";
> +
> + data-lanes = <0 1>;
Status last; is this really only 2 lanes?
> +
> + ports {
> + port@1 {
> + reg = <1>;
> + mdss0_dp0_out: endpoint {
> + remote-endpoint = <&pmic_glink_con0_ss>;
> + };
> + };
> + };
> +};
> +
> +&mdss0_dp1 {
> + status = "okay";
> +
> + data-lanes = <0 1>;
Ditto
> +
> + ports {
> + port@1 {
> + reg = <1>;
> + mdss0_dp1_out: endpoint {
> + remote-endpoint = <&pmic_glink_con1_ss>;
> + };
> + };
> + };
> +};
> +
> &mdss0_dp3 {
> compatible = "qcom,sc8280xp-edp";
> /delete-property/ #sound-dai-cells;
> @@ -480,8 +621,13 @@ &usb_0 {
> };
>
> &usb_0_dwc3 {
> - /* TODO: Define USB-C connector properly */
> dr_mode = "host";
> +
> + port {
> + usb_0_role_switch: endpoint {
> + remote-endpoint = <&pmic_glink_con0_hs>;
> + };
This should be defined in the SoC DTSI, it's a standard dwc3 binding
with usb HS / SS / SBU ports. Especially since we can feed the endpoint
from any device now, as pmic-glink should work everywhere.
Or /omit-if-no-ref/, I suppose.
> + };
> };
>
> &usb_0_hsphy {
> @@ -504,8 +650,13 @@ &usb_1 {
> };
>
> &usb_1_dwc3 {
> - /* TODO: Define USB-C connector properly */
> dr_mode = "host";
> +
> + port {
> + usb_1_role_switch: endpoint {
> + remote-endpoint = <&pmic_glink_con1_hs>;
> + };
> + };
> };
>
> &usb_1_hsphy {
> @@ -709,4 +860,40 @@ reset-n-pins {
> drive-strength = <16>;
> };
> };
> +
> + usb0_sbu_default: usb0-sbu-state {
> + oe-n-pins {
> + pins = "gpio101";
> + function = "gpio";
No drive-strength/bias/i/o?
Konrad
> + };
> +
> + sel-pins {
> + pins = "gpio164";
> + function = "gpio";
> + };
> +
> + mode-pins {
> + pins = "gpio167";
> + function = "gpio";
> + output-high;
> + };
> + };
> +
> + usb1_sbu_default: usb1-sbu-state {
> + oe-n-pins {
> + pins = "gpio48";
> + function = "gpio";
> + };
> +
> + sel-pins {
> + pins = "gpio47";
> + function = "gpio";
> + };
> +
> + mode-pins {
> + pins = "gpio50";
> + function = "gpio";
> + output-high;
> + };
> + };
> };
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