Re: [PATCH 3/3] arm64: dts: qcom: prefer host mode on dev boards

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On 24/06/2024 14:28, neil.armstrong@xxxxxxxxxx wrote:

On 24/06/2024 14:23, Caleb Connolly wrote:

Generally, when given the choice these boards should prefer host mode
since they're SBCs. When attached to a laptop (which is host-only) they
should still fall back to peripheral mode.


It's really not what I observed on sm8550/sm8650 QRD/HDK, as the power
is setup for peripheral by the bootloader and without an actual UCSI/PD
negociation it would only be functionnal as peripheral mode.

So this is definitely untrue on sm8450/sm8550/sm8650 HDK/QRD/MTP.


Hmm, yeah in that case this change could break U-Boot.

Let me re-send and split out the rb1/2 since those are much more clear cut.


Neil



Suggested-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx>
Signed-off-by: Caleb Connolly <caleb.connolly@xxxxxxxxxx>
---
  arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts | 1 +
  arch/arm64/boot/dts/qcom/qrb2210-rb1.dts     | 4 ++++
  arch/arm64/boot/dts/qcom/qrb4210-rb2.dts     | 4 ++++
  arch/arm64/boot/dts/qcom/sm8150-hdk.dts      | 1 +
  arch/arm64/boot/dts/qcom/sm8350-hdk.dts      | 4 ++++
  arch/arm64/boot/dts/qcom/sm8450-hdk.dts      | 1 +
  arch/arm64/boot/dts/qcom/sm8550-hdk.dts      | 4 ++++
  arch/arm64/boot/dts/qcom/sm8550-mtp.dts      | 4 ++++
  arch/arm64/boot/dts/qcom/sm8550-qrd.dts      | 4 ++++
  arch/arm64/boot/dts/qcom/sm8650-hdk.dts      | 4 ++++
  arch/arm64/boot/dts/qcom/sm8650-mtp.dts      | 4 ++++
  arch/arm64/boot/dts/qcom/sm8650-qrd.dts      | 4 ++++
  12 files changed, 39 insertions(+)
diff --git a/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts b/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts 
index c4cde4328e3d..bac4ed5874b6 100644
--- a/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts
+++ b/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts
@@ -657,8 +657,9 @@ &usb_1 {
  &usb_1_dwc3 {
      dr_mode = "otg";
      usb-role-switch;
+    role-switch-default-mode = "host";
  };
  &usb_1_dwc3_hs {
      remote-endpoint = <&pmic_glink_hs_in>;
diff --git a/arch/arm64/boot/dts/qcom/qrb2210-rb1.dts b/arch/arm64/boot/dts/qcom/qrb2210-rb1.dts 
index e19790464a11..bece4896ca23 100644
--- a/arch/arm64/boot/dts/qcom/qrb2210-rb1.dts
+++ b/arch/arm64/boot/dts/qcom/qrb2210-rb1.dts
@@ -593,8 +593,12 @@ &uart4 {
  &usb {
      status = "okay";
  };
+&usb_dwc3 {
+    role-switch-default-mode = "host";
+};
+
  &usb_dwc3_hs {
      remote-endpoint = <&pm4125_hs_in>;
  };
diff --git a/arch/arm64/boot/dts/qcom/qrb4210-rb2.dts b/arch/arm64/boot/dts/qcom/qrb4210-rb2.dts 
index 1c7de7f2db79..17d36f0ef5ab 100644
--- a/arch/arm64/boot/dts/qcom/qrb4210-rb2.dts
+++ b/arch/arm64/boot/dts/qcom/qrb4210-rb2.dts
@@ -661,8 +661,12 @@ &uart4 {
  &usb {
      status = "okay";
  };
+&usb_dwc3 {
+    role-switch-default-mode = "host";
+};
+
  &usb_dwc3_hs {
      remote-endpoint = <&pmi632_hs_in>;
  };
diff --git a/arch/arm64/boot/dts/qcom/sm8150-hdk.dts b/arch/arm64/boot/dts/qcom/sm8150-hdk.dts 
index bac08f00b303..fe548d795490 100644
--- a/arch/arm64/boot/dts/qcom/sm8150-hdk.dts
+++ b/arch/arm64/boot/dts/qcom/sm8150-hdk.dts
@@ -695,8 +695,9 @@ &usb_2 {
  &usb_1_dwc3 {
      dr_mode = "otg";
      usb-role-switch;
+    role-switch-default-mode = "host";
  };
  &usb_1_dwc3_hs {
      remote-endpoint = <&pm8150b_hs_in>;
diff --git a/arch/arm64/boot/dts/qcom/sm8350-hdk.dts b/arch/arm64/boot/dts/qcom/sm8350-hdk.dts 
index e031ad4c19f4..20d5c54cfcf9 100644
--- a/arch/arm64/boot/dts/qcom/sm8350-hdk.dts
+++ b/arch/arm64/boot/dts/qcom/sm8350-hdk.dts
@@ -847,8 +847,12 @@ &ufs_mem_phy {
  &usb_1 {
      status = "okay";
  };
+&usb_1_dwc3 {
+    role-switch-default-mode = "host";
+};
+
  &usb_1_dwc3_hs {
      remote-endpoint = <&pmic_glink_hs_in>;
  };
diff --git a/arch/arm64/boot/dts/qcom/sm8450-hdk.dts b/arch/arm64/boot/dts/qcom/sm8450-hdk.dts 
index a754b8fe9167..ebafcbe6859e 100644
--- a/arch/arm64/boot/dts/qcom/sm8450-hdk.dts
+++ b/arch/arm64/boot/dts/qcom/sm8450-hdk.dts
@@ -1098,8 +1098,9 @@ &usb_1 {
  &usb_1_dwc3 {
      dr_mode = "otg";
      usb-role-switch;
+    role-switch-default-mode = "host";
  };
  &usb_1_dwc3_hs {
      remote-endpoint = <&pmic_glink_hs_in>;
diff --git a/arch/arm64/boot/dts/qcom/sm8550-hdk.dts b/arch/arm64/boot/dts/qcom/sm8550-hdk.dts 
index e0dc03a97771..1efda478b7b9 100644
--- a/arch/arm64/boot/dts/qcom/sm8550-hdk.dts
+++ b/arch/arm64/boot/dts/qcom/sm8550-hdk.dts
@@ -1252,8 +1252,12 @@ &ufs_mem_phy {
  &usb_1 {
      status = "okay";
  };
+&usb_1_dwc3 {
+    role-switch-default-mode = "host";
+};
+
  &usb_1_dwc3_hs {
      remote-endpoint = <&pmic_glink_hs_in>;
  };
diff --git a/arch/arm64/boot/dts/qcom/sm8550-mtp.dts b/arch/arm64/boot/dts/qcom/sm8550-mtp.dts 
index 26dfca0c3e05..7b05932f9c36 100644
--- a/arch/arm64/boot/dts/qcom/sm8550-mtp.dts
+++ b/arch/arm64/boot/dts/qcom/sm8550-mtp.dts
@@ -945,8 +945,12 @@ &ufs_mem_phy {
  &usb_1 {
      status = "okay";
  };
+&usb_1_dwc3 {
+    role-switch-default-mode = "host";
+};
+
  &usb_1_dwc3_hs {
      remote-endpoint = <&pmic_glink_hs_in>;
  };
diff --git a/arch/arm64/boot/dts/qcom/sm8550-qrd.dts b/arch/arm64/boot/dts/qcom/sm8550-qrd.dts 
index 361b0792db4f..744bdc846e70 100644
--- a/arch/arm64/boot/dts/qcom/sm8550-qrd.dts
+++ b/arch/arm64/boot/dts/qcom/sm8550-qrd.dts
@@ -1211,8 +1211,12 @@ &ufs_mem_phy {
  &usb_1 {
      status = "okay";
  };
+&usb_1_dwc3 {
+    role-switch-default-mode = "host";
+};
+
  &usb_1_dwc3_hs {
      remote-endpoint = <&pmic_glink_hs_in>;
  };
diff --git a/arch/arm64/boot/dts/qcom/sm8650-hdk.dts b/arch/arm64/boot/dts/qcom/sm8650-hdk.dts 
index 092b78fd8a3b..f07a56583e7d 100644
--- a/arch/arm64/boot/dts/qcom/sm8650-hdk.dts
+++ b/arch/arm64/boot/dts/qcom/sm8650-hdk.dts
@@ -1300,8 +1300,12 @@ &ufs_mem_phy {
  &usb_1 {
      status = "okay";
  };
+&usb_1_dwc3 {
+    role-switch-default-mode = "host";
+};
+
  &usb_1_dwc3_hs {
      remote-endpoint = <&pmic_glink_hs_in>;
  };
diff --git a/arch/arm64/boot/dts/qcom/sm8650-mtp.dts b/arch/arm64/boot/dts/qcom/sm8650-mtp.dts 
index d6f91580ba8d..1a9a31423af4 100644
--- a/arch/arm64/boot/dts/qcom/sm8650-mtp.dts
+++ b/arch/arm64/boot/dts/qcom/sm8650-mtp.dts
@@ -839,8 +839,12 @@ &ufs_mem_phy {
  &usb_1 {
      status = "okay";
  };
+&usb_1_dwc3 {
+    role-switch-default-mode = "host";
+};
+
  &usb_1_dwc3_hs {
      remote-endpoint = <&pmic_glink_hs_in>;
  };
diff --git a/arch/arm64/boot/dts/qcom/sm8650-qrd.dts b/arch/arm64/boot/dts/qcom/sm8650-qrd.dts 
index bd60c2770da2..031b7ada8eb1 100644
--- a/arch/arm64/boot/dts/qcom/sm8650-qrd.dts
+++ b/arch/arm64/boot/dts/qcom/sm8650-qrd.dts
@@ -1285,8 +1285,12 @@ &ufs_mem_phy {
  &usb_1 {
      status = "okay";
  };
+&usb_1_dwc3 {
+    role-switch-default-mode = "host";
+};
+
  &usb_1_dwc3_hs {
      remote-endpoint = <&pmic_glink_hs_in>;
  };





--
// Caleb (they/them)
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