[PATCH v3 0/3] phy: qcom: qmp-pcie: Add vdda-refgen supply support for Glymur

[PATCH v3 0/3] phy: qcom: qmp-pcie: Add vdda-refgen supply support for Glymur

[Qiang Yu]

he PCIe QMP PHYs on Glymur require both refgen for stable reference
voltage and qref for stable reference clock. The refgen requires two power
supplies: vdda-refgen0p9 and vdda-refgen1p2.

This series creates a Glymur-specific supply list including the refgen
supplies and updates both Gen5x4 and Gen4x2 configurations to use it.

Signed-off-by: Qiang Yu <qiang.yu@oss.qualcomm.com>

Changes in v3:
- Add vdda-refgen-* porperty in all glymur and mahua board.dts.
- Reword commit msg.
- Link to v2: https://lore.kernel.org/all/20260623-phy_refgen-v2-0-4d15983bf91d@oss.qualcomm.com/

Changes in v2:
- Add dts patch in this series.
- Reword commit msg of dtbinding patch.
- Link to v1: https://lore.kernel.org/all/20260208-refgen-v1-0-87ca84fd78b3@oss.qualcomm.com/

---
Qiang Yu (3):
      dt-bindings: phy: sc8280xp-qmp-pcie: Add vdda-refgen supply for Glymur
      phy: qcom: qmp-pcie: Add vdda-refgen supplies for Glymur
      arm64: dts: qcom: Add refgen supplies for PCIe PHY on Glymur and Mahua boards

 .../bindings/phy/qcom,sc8280xp-qmp-pcie-phy.yaml         | 16 ++++++++++++++++
 .../boot/dts/qcom/glymur-asus-zenbook-a14-ux3407na.dts   |  2 ++
 .../boot/dts/qcom/glymur-asus-zenbook-a16-ux3607oa.dts   |  4 ++++
 arch/arm64/boot/dts/qcom/glymur-crd.dtsi                 |  6 ++++++
 arch/arm64/boot/dts/qcom/glymur-hp-elitebook-x-g2q.dts   |  4 ++++
 arch/arm64/boot/dts/qcom/glymur-lenovo-yoga-slim7x.dts   |  6 ++++++
 arch/arm64/boot/dts/qcom/glymur-qcb.dts                  |  6 ++++++
 arch/arm64/boot/dts/qcom/mahua-crd.dts                   |  2 ++
 .../dts/qcom/mahua-lenovo-thinkpad-t14s-gen7-lcd.dts     |  6 ++++++
 drivers/phy/qualcomm/phy-qcom-qmp-pcie.c                 | 12 ++++++++----
 10 files changed, 60 insertions(+), 4 deletions(-)
---
base-commit: becb95e45ef0dda9ffb35156d909d3da7a2789c3
change-id: 20261011-phy_refgen_1012-10f76fb054de

Best regards,
--  
Qiang Yu <qiang.yu@oss.qualcomm.com>

[PATCH v3 1/3] dt-bindings: phy: sc8280xp-qmp-pcie: Add vdda-refgen supply for Glymur

[Qiang Yu]

The PCIe QMP PHYs require a stable reference voltage provided by REFGEN,
which in turn requires two separate LDOs to operate. Without these
supplies, the PCIe PHY cannot work properly.

Add vdda-refgen0p9-supply and vdda-refgen1p2-supply properties. Mark them
as required for the Glymur PCIe QMP PHYs for now, even though it breaks
ABI; other platforms having the same requirement can be added later.

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Signed-off-by: Qiang Yu <qiang.yu@oss.qualcomm.com>
---
 .../bindings/phy/qcom,sc8280xp-qmp-pcie-phy.yaml         | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/Documentation/devicetree/bindings/phy/qcom,sc8280xp-qmp-pcie-phy.yaml b/Documentation/devicetree/bindings/phy/qcom,sc8280xp-qmp-pcie-phy.yaml
index c0a3e1f160ad..f827abaf22ef 100644
--- a/Documentation/devicetree/bindings/phy/qcom,sc8280xp-qmp-pcie-phy.yaml
+++ b/Documentation/devicetree/bindings/phy/qcom,sc8280xp-qmp-pcie-phy.yaml
@@ -104,6 +104,10 @@ properties:
 
   vdda-qref-supply: true
 
+  vdda-refgen0p9-supply: true
+
+  vdda-refgen1p2-supply: true
+
   qcom,4ln-config-sel:
     description: PCIe 4-lane configuration
     $ref: /schemas/types.yaml#/definitions/phandle-array
@@ -280,6 +284,18 @@ allOf:
         "#clock-cells":
           const: 0
 
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - qcom,glymur-qmp-gen4x2-pcie-phy
+              - qcom,glymur-qmp-gen5x4-pcie-phy
+    then:
+      required:
+        - vdda-refgen0p9-supply
+        - vdda-refgen1p2-supply
+
 examples:
   - |
     #include <dt-bindings/clock/qcom,gcc-sc8280xp.h>

-- 
2.34.1

[PATCH v3 2/3] phy: qcom: qmp-pcie: Add vdda-refgen supplies for Glymur

[Qiang Yu]

The refgen providing reference voltage for PCIe QMP PHY on Glymur requires
two power supplies independent from the PHY's core and qref rails. Add
support for vdda-refgen0p9 and vdda-refgen1p2 supplies with a dedicated
glymur_qmp_phy_vreg_l list.

Update both Gen5x4 and Gen4x2 configurations to use the new supply list.

Signed-off-by: Qiang Yu <qiang.yu@oss.qualcomm.com>
---
 drivers/phy/qualcomm/phy-qcom-qmp-pcie.c | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/drivers/phy/qualcomm/phy-qcom-qmp-pcie.c b/drivers/phy/qualcomm/phy-qcom-qmp-pcie.c
index 9cfabf474fd6..e226b65ec7c6 100644
--- a/drivers/phy/qualcomm/phy-qcom-qmp-pcie.c
+++ b/drivers/phy/qualcomm/phy-qcom-qmp-pcie.c
@@ -4106,6 +4106,10 @@ static const char * const sm8550_qmp_phy_vreg_l[] = {
 	"vdda-phy", "vdda-pll", "vdda-qref",
 };
 
+static const char * const glymur_qmp_phy_vreg_l[] = {
+	"vdda-phy", "vdda-pll", "vdda-refgen0p9", "vdda-refgen1p2",
+};
+
 /* list of resets */
 static const char * const ipq8074_pciephy_reset_l[] = {
 	"phy", "common",
@@ -5555,8 +5559,8 @@ static const struct qmp_phy_cfg glymur_qmp_gen5x4_pciephy_cfg = {
 
 	.reset_list		= sdm845_pciephy_reset_l,
 	.num_resets		= ARRAY_SIZE(sdm845_pciephy_reset_l),
-	.vreg_list		= qmp_phy_vreg_l,
-	.num_vregs		= ARRAY_SIZE(qmp_phy_vreg_l),
+	.vreg_list		= glymur_qmp_phy_vreg_l,
+	.num_vregs		= ARRAY_SIZE(glymur_qmp_phy_vreg_l),
 
 	.regs			= pciephy_v8_50_regs_layout,
 
@@ -5571,8 +5575,8 @@ static const struct qmp_phy_cfg glymur_qmp_gen4x2_pciephy_cfg = {
 
 	.reset_list		= sdm845_pciephy_reset_l,
 	.num_resets		= ARRAY_SIZE(sdm845_pciephy_reset_l),
-	.vreg_list		= qmp_phy_vreg_l,
-	.num_vregs		= ARRAY_SIZE(qmp_phy_vreg_l),
+	.vreg_list		= glymur_qmp_phy_vreg_l,
+	.num_vregs		= ARRAY_SIZE(glymur_qmp_phy_vreg_l),
 
 	.regs			= pciephy_v8_regs_layout,
 

-- 
2.34.1

[PATCH v3 3/3] arm64: dts: qcom: Add refgen supplies for PCIe PHY on Glymur and Mahua boards

[Qiang Yu]

The PCIe PHYs on Glymur and Mahua require a reference voltage provided by
REFGEN, which in turn is powered by two LDOs.

Since there is no devicetree node for REFGEN, add the vdda-refgen0p9 and
vdda-refgen1p2 supplies for each PCIe PHY node.

Signed-off-by: Qiang Yu <qiang.yu@oss.qualcomm.com>
---
 arch/arm64/boot/dts/qcom/glymur-asus-zenbook-a14-ux3407na.dts    | 2 ++
 arch/arm64/boot/dts/qcom/glymur-asus-zenbook-a16-ux3607oa.dts    | 4 ++++
 arch/arm64/boot/dts/qcom/glymur-crd.dtsi                         | 6 ++++++
 arch/arm64/boot/dts/qcom/glymur-hp-elitebook-x-g2q.dts           | 4 ++++
 arch/arm64/boot/dts/qcom/glymur-lenovo-yoga-slim7x.dts           | 6 ++++++
 arch/arm64/boot/dts/qcom/glymur-qcb.dts                          | 6 ++++++
 arch/arm64/boot/dts/qcom/mahua-crd.dts                           | 2 ++
 arch/arm64/boot/dts/qcom/mahua-lenovo-thinkpad-t14s-gen7-lcd.dts | 6 ++++++
 8 files changed, 36 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/glymur-asus-zenbook-a14-ux3407na.dts b/arch/arm64/boot/dts/qcom/glymur-asus-zenbook-a14-ux3407na.dts
index e96e65a0c5b4..d1746845a609 100644
--- a/arch/arm64/boot/dts/qcom/glymur-asus-zenbook-a14-ux3407na.dts
+++ b/arch/arm64/boot/dts/qcom/glymur-asus-zenbook-a14-ux3407na.dts
@@ -735,6 +735,8 @@ &pcie4 {
 &pcie4_phy {
 	vdda-phy-supply = <&vreg_l1c1>;
 	vdda-pll-supply = <&vreg_l4f1>;
+	vdda-refgen0p9-supply = <&vreg_l1c1>;
+	vdda-refgen1p2-supply = <&vreg_l4f1>;
 
 	status = "okay";
 };
diff --git a/arch/arm64/boot/dts/qcom/glymur-asus-zenbook-a16-ux3607oa.dts b/arch/arm64/boot/dts/qcom/glymur-asus-zenbook-a16-ux3607oa.dts
index 95da35125d75..bf3c828c8a0b 100644
--- a/arch/arm64/boot/dts/qcom/glymur-asus-zenbook-a16-ux3607oa.dts
+++ b/arch/arm64/boot/dts/qcom/glymur-asus-zenbook-a16-ux3607oa.dts
@@ -818,6 +818,8 @@ &pcie4 {
 &pcie4_phy {
 	vdda-phy-supply = <&vreg_l1c_e1>;
 	vdda-pll-supply = <&vreg_l4f_e1>;
+	vdda-refgen0p9-supply = <&vreg_l1c_e1>;
+	vdda-refgen1p2-supply = <&vreg_l4f_e1>;
 
 	status = "okay";
 };
@@ -843,6 +845,8 @@ &pcie5 {
 &pcie5_phy {
 	vdda-phy-supply = <&vreg_l2f_e0>;
 	vdda-pll-supply = <&vreg_l4c_e0>;
+	vdda-refgen0p9-supply = <&vreg_l2f_e0>;
+	vdda-refgen1p2-supply = <&vreg_l4c_e0>;
 
 	status = "okay";
 };
diff --git a/arch/arm64/boot/dts/qcom/glymur-crd.dtsi b/arch/arm64/boot/dts/qcom/glymur-crd.dtsi
index 58158b51fe29..b3f876956e7e 100644
--- a/arch/arm64/boot/dts/qcom/glymur-crd.dtsi
+++ b/arch/arm64/boot/dts/qcom/glymur-crd.dtsi
@@ -764,6 +764,8 @@ &pcie4 {
 &pcie4_phy {
 	vdda-phy-supply = <&vreg_l1c_e1_0p82>;
 	vdda-pll-supply = <&vreg_l4f_e1_1p08>;
+	vdda-refgen0p9-supply = <&vreg_l1c_e1_0p82>;
+	vdda-refgen1p2-supply = <&vreg_l4f_e1_1p08>;
 
 	status = "okay";
 };
@@ -800,6 +802,8 @@ &pcie5 {
 &pcie5_phy {
 	vdda-phy-supply = <&vreg_l2f_e0_0p82>;
 	vdda-pll-supply = <&vreg_l4h_e0_1p2>;
+	vdda-refgen0p9-supply = <&vreg_l2f_e0_0p82>;
+	vdda-refgen1p2-supply = <&vreg_l4h_e0_1p2>;
 
 	status = "okay";
 };
@@ -821,6 +825,8 @@ &pcie6 {
 &pcie6_phy {
 	vdda-phy-supply = <&vreg_l1c_e1_0p82>;
 	vdda-pll-supply = <&vreg_l4f_e1_1p08>;
+	vdda-refgen0p9-supply = <&vreg_l1c_e1_0p82>;
+	vdda-refgen1p2-supply = <&vreg_l4f_e1_1p08>;
 
 	status = "okay";
 };
diff --git a/arch/arm64/boot/dts/qcom/glymur-hp-elitebook-x-g2q.dts b/arch/arm64/boot/dts/qcom/glymur-hp-elitebook-x-g2q.dts
index 096d40e49210..7f79470ec004 100644
--- a/arch/arm64/boot/dts/qcom/glymur-hp-elitebook-x-g2q.dts
+++ b/arch/arm64/boot/dts/qcom/glymur-hp-elitebook-x-g2q.dts
@@ -545,6 +545,8 @@ &pcie4 {
 &pcie4_phy {
 	vdda-phy-supply = <&vreg_l1c_e1_0p91>;
 	vdda-pll-supply = <&vreg_l4f_e1_1p2>;
+	vdda-refgen0p9-supply = <&vreg_l1c_e1_0p91>;
+	vdda-refgen1p2-supply = <&vreg_l4f_e1_1p2>;
 
 	status = "okay";
 };
@@ -581,6 +583,8 @@ &pcie5 {
 &pcie5_phy {
 	vdda-phy-supply = <&vreg_l2f_e0_0p94>;
 	vdda-pll-supply = <&vreg_l4h_e0_1p2>;
+	vdda-refgen0p9-supply = <&vreg_l2f_e0_0p94>;
+	vdda-refgen1p2-supply = <&vreg_l4h_e0_1p2>;
 
 	status = "okay";
 };
diff --git a/arch/arm64/boot/dts/qcom/glymur-lenovo-yoga-slim7x.dts b/arch/arm64/boot/dts/qcom/glymur-lenovo-yoga-slim7x.dts
index 769f195c99d9..130946ba9785 100644
--- a/arch/arm64/boot/dts/qcom/glymur-lenovo-yoga-slim7x.dts
+++ b/arch/arm64/boot/dts/qcom/glymur-lenovo-yoga-slim7x.dts
@@ -743,6 +743,8 @@ &pcie4 {
 &pcie4_phy {
 	vdda-phy-supply = <&vreg_l1c_e1>;
 	vdda-pll-supply = <&vreg_l4f_e1>;
+	vdda-refgen0p9-supply = <&vreg_l1c_e1>;
+	vdda-refgen1p2-supply = <&vreg_l4f_e1>;
 
 	status = "okay";
 };
@@ -779,6 +781,8 @@ &pcie5 {
 &pcie5_phy {
 	vdda-phy-supply = <&vreg_l2f_e0>;
 	vdda-pll-supply = <&vreg_l4h_e0>;
+	vdda-refgen0p9-supply = <&vreg_l2f_e0>;
+	vdda-refgen1p2-supply = <&vreg_l4h_e0>;
 
 	status = "okay";
 };
@@ -800,6 +804,8 @@ &pcie6 {
 &pcie6_phy {
 	vdda-phy-supply = <&vreg_l1c_e1>;
 	vdda-pll-supply = <&vreg_l4f_e1>;
+	vdda-refgen0p9-supply = <&vreg_l1c_e1>;
+	vdda-refgen1p2-supply = <&vreg_l4f_e1>;
 
 	status = "okay";
 };
diff --git a/arch/arm64/boot/dts/qcom/glymur-qcb.dts b/arch/arm64/boot/dts/qcom/glymur-qcb.dts
index 17d8ff3aed23..f26bdc1cd84a 100644
--- a/arch/arm64/boot/dts/qcom/glymur-qcb.dts
+++ b/arch/arm64/boot/dts/qcom/glymur-qcb.dts
@@ -448,6 +448,8 @@ &pcie4 {
 &pcie4_phy {
 	vdda-phy-supply = <&vreg_l1c_e1_0p82>;
 	vdda-pll-supply = <&vreg_l4f_e1_1p08>;
+	vdda-refgen0p9-supply = <&vreg_l1c_e1_0p82>;
+	vdda-refgen1p2-supply = <&vreg_l4f_e1_1p08>;
 
 	status = "okay";
 };
@@ -484,6 +486,8 @@ &pcie5 {
 &pcie5_phy {
 	vdda-phy-supply = <&vreg_l2f_e0_0p82>;
 	vdda-pll-supply = <&vreg_l4h_e0_1p2>;
+	vdda-refgen0p9-supply = <&vreg_l2f_e0_0p82>;
+	vdda-refgen1p2-supply = <&vreg_l4h_e0_1p2>;
 
 	status = "okay";
 };
@@ -505,6 +509,8 @@ &pcie6 {
 &pcie6_phy {
 	vdda-phy-supply = <&vreg_l1c_e1_0p82>;
 	vdda-pll-supply = <&vreg_l4f_e1_1p08>;
+	vdda-refgen0p9-supply = <&vreg_l1c_e1_0p82>;
+	vdda-refgen1p2-supply = <&vreg_l4f_e1_1p08>;
 
 	status = "okay";
 };
diff --git a/arch/arm64/boot/dts/qcom/mahua-crd.dts b/arch/arm64/boot/dts/qcom/mahua-crd.dts
index 17e40f2a6259..45c95543fff8 100644
--- a/arch/arm64/boot/dts/qcom/mahua-crd.dts
+++ b/arch/arm64/boot/dts/qcom/mahua-crd.dts
@@ -23,6 +23,8 @@ / {
 &pcie3b_phy {
 	vdda-phy-supply = <&vreg_l3c_e1_0p89>;
 	vdda-pll-supply = <&vreg_l2c_e1_1p14>;
+	vdda-refgen0p9-supply = <&vreg_l1c_e1_0p82>;
+	vdda-refgen1p2-supply = <&vreg_l4f_e1_1p08>;
 };
 
 &tcsr {
diff --git a/arch/arm64/boot/dts/qcom/mahua-lenovo-thinkpad-t14s-gen7-lcd.dts b/arch/arm64/boot/dts/qcom/mahua-lenovo-thinkpad-t14s-gen7-lcd.dts
index 26d6d8285e04..ac7e1382166d 100644
--- a/arch/arm64/boot/dts/qcom/mahua-lenovo-thinkpad-t14s-gen7-lcd.dts
+++ b/arch/arm64/boot/dts/qcom/mahua-lenovo-thinkpad-t14s-gen7-lcd.dts
@@ -813,6 +813,8 @@ &pcie4 {
 &pcie4_phy {
 	vdda-phy-supply = <&vreg_l1c_e1_0p82>;
 	vdda-pll-supply = <&vreg_l4f_e1_1p2>;
+	vdda-refgen0p9-supply = <&vreg_l1c_e1_0p82>;
+	vdda-refgen1p2-supply = <&vreg_l4f_e1_1p2>;
 
 	status = "okay";
 };
@@ -850,6 +852,8 @@ &pcie5 {
 &pcie5_phy {
 	vdda-phy-supply = <&vreg_l2f_e0_0p94>;
 	vdda-pll-supply = <&vreg_l4h_e0_1p2>;
+	vdda-refgen0p9-supply = <&vreg_l2f_e0_0p94>;
+	vdda-refgen1p2-supply = <&vreg_l4h_e0_1p2>;
 
 	status = "okay";
 };
@@ -872,6 +876,8 @@ &pcie6 {
 &pcie6_phy {
 	vdda-phy-supply = <&vreg_l1c_e1_0p82>;
 	vdda-pll-supply = <&vreg_l4f_e1_1p2>;
+	vdda-refgen0p9-supply = <&vreg_l1c_e1_0p82>;
+	vdda-refgen1p2-supply = <&vreg_l4f_e1_1p2>;
 
 	status = "okay";
 };

-- 
2.34.1

Re: [PATCH v3 1/3] dt-bindings: phy: sc8280xp-qmp-pcie: Add vdda-refgen supply for Glymur

[Konrad Dybcio]

On 10/13/26 12:16 PM, Qiang Yu wrote:
> The PCIe QMP PHYs require a stable reference voltage provided by REFGEN,
> which in turn requires two separate LDOs to operate. Without these
> supplies, the PCIe PHY cannot work properly.
> 
> Add vdda-refgen0p9-supply and vdda-refgen1p2-supply properties. Mark them
> as required for the Glymur PCIe QMP PHYs for now, even though it breaks
> ABI; other platforms having the same requirement can be added later.
> 
> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
> Signed-off-by: Qiang Yu <qiang.yu@oss.qualcomm.com>
> ---

Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>

Konrad

Re: [PATCH v3 3/3] arm64: dts: qcom: Add refgen supplies for PCIe PHY on Glymur and Mahua boards

[Konrad Dybcio]

On 10/13/26 12:16 PM, Qiang Yu wrote:
> The PCIe PHYs on Glymur and Mahua require a reference voltage provided by
> REFGEN, which in turn is powered by two LDOs.
> 
> Since there is no devicetree node for REFGEN, add the vdda-refgen0p9 and
> vdda-refgen1p2 supplies for each PCIe PHY node.
> 
> Signed-off-by: Qiang Yu <qiang.yu@oss.qualcomm.com>
> ---

Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>

Konrad

Re: [PATCH v3 2/3] phy: qcom: qmp-pcie: Add vdda-refgen supplies for Glymur

[Abel Vesa]

On 26-10-13 03:16:46, Qiang Yu wrote:
> The refgen providing reference voltage for PCIe QMP PHY on Glymur requires
> two power supplies independent from the PHY's core and qref rails. Add
> support for vdda-refgen0p9 and vdda-refgen1p2 supplies with a dedicated
> glymur_qmp_phy_vreg_l list.
> 
> Update both Gen5x4 and Gen4x2 configurations to use the new supply list.
> 
> Signed-off-by: Qiang Yu <qiang.yu@oss.qualcomm.com>

Reviewed-by: Abel Vesa <abel.vesa@oss.qualcomm.com>

Re: [PATCH v3 3/3] arm64: dts: qcom: Add refgen supplies for PCIe PHY on Glymur and Mahua boards

[Abel Vesa]

On 26-10-13 03:16:47, Qiang Yu wrote:
> The PCIe PHYs on Glymur and Mahua require a reference voltage provided by
> REFGEN, which in turn is powered by two LDOs.
> 
> Since there is no devicetree node for REFGEN, add the vdda-refgen0p9 and
> vdda-refgen1p2 supplies for each PCIe PHY node.
> 
> Signed-off-by: Qiang Yu <qiang.yu@oss.qualcomm.com>

Reviewed-by: Abel Vesa <abel.vesa@oss.qualcomm.com>