[PATCH v2 0/5] arm64: qcom: sa8775p: add support for UFS

[PATCH v2 0/5] arm64: qcom: sa8775p: add support for UFS

[Bartosz Golaszewski]

From: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

Update relevant DT bindings, add new config to the driver and add UFS
and PHY nodes to the .dtsi and enable them in the board .dts for
sa8775p-ride.

v1 -> v2:
- order new compatibles alphabetically
- rework the UFS PHY bindings to accomodate more clocks
- add a comment in the .dts regarding a non-standard clock used
  by the UFS PHY

Bartosz Golaszewski (5):
  dt-bindings: ufs: qcom: add compatible for sa8775p
  dt-bindings: phy: qmp-ufs: describe the UFS PHY for sa8775p
  phy: qualcomm: phy-qcom-qmp-ufs: add definitions for sa8775p
  arm64: dts: qcom: sa8775p: add UFS nodes
  arm64: dts: qcom: sa8775p-ride: enable UFS

 .../phy/qcom,sc8280xp-qmp-ufs-phy.yaml        | 26 ++++++++-
 .../devicetree/bindings/ufs/qcom,ufs.yaml     |  2 +
 arch/arm64/boot/dts/qcom/sa8775p-ride.dts     | 19 ++++++
 arch/arm64/boot/dts/qcom/sa8775p.dtsi         | 58 +++++++++++++++++++
 drivers/phy/qualcomm/phy-qcom-qmp-ufs.c       | 38 ++++++++++++
 5 files changed, 142 insertions(+), 1 deletion(-)

-- 
2.37.2


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[PATCH v2 1/5] dt-bindings: ufs: qcom: add compatible for sa8775p

[Bartosz Golaszewski]

From: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

Add the compatible string for the UFS on sa8775p platforms.

Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
---
 Documentation/devicetree/bindings/ufs/qcom,ufs.yaml | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/Documentation/devicetree/bindings/ufs/qcom,ufs.yaml b/Documentation/devicetree/bindings/ufs/qcom,ufs.yaml
index c5a06c048389..b1c00424c2b0 100644
--- a/Documentation/devicetree/bindings/ufs/qcom,ufs.yaml
+++ b/Documentation/devicetree/bindings/ufs/qcom,ufs.yaml
@@ -26,6 +26,7 @@ properties:
           - qcom,msm8994-ufshc
           - qcom,msm8996-ufshc
           - qcom,msm8998-ufshc
+          - qcom,sa8775p-ufshc
           - qcom,sc8280xp-ufshc
           - qcom,sdm845-ufshc
           - qcom,sm6350-ufshc
@@ -105,6 +106,7 @@ allOf:
           contains:
             enum:
               - qcom,msm8998-ufshc
+              - qcom,sa8775p-ufshc
               - qcom,sc8280xp-ufshc
               - qcom,sm8250-ufshc
               - qcom,sm8350-ufshc
-- 
2.37.2


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[PATCH v2 2/5] dt-bindings: phy: qmp-ufs: describe the UFS PHY for sa8775p

[Bartosz Golaszewski]

From: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

Add a new compatible for the QMP UFS PHY found on sa8775p platforms and
update the clocks property to accommodate three clocks.

Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
---
 .../phy/qcom,sc8280xp-qmp-ufs-phy.yaml        | 26 ++++++++++++++++++-
 1 file changed, 25 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/phy/qcom,sc8280xp-qmp-ufs-phy.yaml b/Documentation/devicetree/bindings/phy/qcom,sc8280xp-qmp-ufs-phy.yaml
index cd0fbbd3593d..5bc93acccbad 100644
--- a/Documentation/devicetree/bindings/phy/qcom,sc8280xp-qmp-ufs-phy.yaml
+++ b/Documentation/devicetree/bindings/phy/qcom,sc8280xp-qmp-ufs-phy.yaml
@@ -16,6 +16,7 @@ description:
 properties:
   compatible:
     enum:
+      - qcom,sa8775p-qmp-ufs-phy
       - qcom,sc8280xp-qmp-ufs-phy
       - qcom,sm6125-qmp-ufs-phy
       - qcom,sm7150-qmp-ufs-phy
@@ -25,12 +26,15 @@ properties:
     maxItems: 1
 
   clocks:
-    maxItems: 2
+    minItems: 2
+    maxItems: 3
 
   clock-names:
+    minItems: 2
     items:
       - const: ref
       - const: ref_aux
+      - const: qref
 
   power-domains:
     maxItems: 1
@@ -52,6 +56,26 @@ properties:
   "#phy-cells":
     const: 0
 
+allOf:
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - qcom,sa8775p-qmp-ufs-phy
+    then:
+      properties:
+        clocks:
+          maxItems: 3
+        clock-names:
+          maxItems: 3
+    else:
+      properties:
+        clocks:
+          maxItems: 2
+        clock-names:
+          maxItems: 2
+
 required:
   - compatible
   - reg
-- 
2.37.2


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[PATCH v2 3/5] phy: qualcomm: phy-qcom-qmp-ufs: add definitions for sa8775p

[Bartosz Golaszewski]

From: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

Add QMP PHY config for sa8775p and add support for the new compatible.

Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
---
 drivers/phy/qualcomm/phy-qcom-qmp-ufs.c | 38 +++++++++++++++++++++++++
 1 file changed, 38 insertions(+)

diff --git a/drivers/phy/qualcomm/phy-qcom-qmp-ufs.c b/drivers/phy/qualcomm/phy-qcom-qmp-ufs.c
index d58822049211..5612282eb378 100644
--- a/drivers/phy/qualcomm/phy-qcom-qmp-ufs.c
+++ b/drivers/phy/qualcomm/phy-qcom-qmp-ufs.c
@@ -853,6 +853,41 @@ static const struct qmp_phy_cfg msm8996_ufsphy_cfg = {
 	.no_pcs_sw_reset	= true,
 };
 
+
+static const struct qmp_phy_cfg sa8775p_ufsphy_cfg = {
+	.lanes			= 2,
+
+	.offsets		= &qmp_ufs_offsets,
+
+	.tbls = {
+		.serdes		= sm8350_ufsphy_serdes,
+		.serdes_num	= ARRAY_SIZE(sm8350_ufsphy_serdes),
+		.tx		= sm8350_ufsphy_tx,
+		.tx_num		= ARRAY_SIZE(sm8350_ufsphy_tx),
+		.rx		= sm8350_ufsphy_rx,
+		.rx_num		= ARRAY_SIZE(sm8350_ufsphy_rx),
+		.pcs		= sm8350_ufsphy_pcs,
+		.pcs_num	= ARRAY_SIZE(sm8350_ufsphy_pcs),
+	},
+	.tbls_hs_b = {
+		.serdes		= sm8350_ufsphy_hs_b_serdes,
+		.serdes_num	= ARRAY_SIZE(sm8350_ufsphy_hs_b_serdes),
+	},
+	.tbls_hs_g4 = {
+		.tx		= sm8350_ufsphy_g4_tx,
+		.tx_num		= ARRAY_SIZE(sm8350_ufsphy_g4_tx),
+		.rx		= sm8350_ufsphy_g4_rx,
+		.rx_num		= ARRAY_SIZE(sm8350_ufsphy_g4_rx),
+		.pcs		= sm8350_ufsphy_g4_pcs,
+		.pcs_num	= ARRAY_SIZE(sm8350_ufsphy_g4_pcs),
+	},
+	.clk_list		= sm8450_ufs_phy_clk_l,
+	.num_clks		= ARRAY_SIZE(sm8450_ufs_phy_clk_l),
+	.vreg_list		= qmp_phy_vreg_l,
+	.num_vregs		= ARRAY_SIZE(qmp_phy_vreg_l),
+	.regs			= ufsphy_v5_regs_layout,
+};
+
 static const struct qmp_phy_cfg sc8280xp_ufsphy_cfg = {
 	.lanes			= 2,
 
@@ -1600,6 +1635,9 @@ static const struct of_device_id qmp_ufs_of_match_table[] = {
 	}, {
 		.compatible = "qcom,msm8998-qmp-ufs-phy",
 		.data = &sdm845_ufsphy_cfg,
+	}, {
+		.compatible = "qcom,sa8775p-qmp-ufs-phy",
+		.data = &sa8775p_ufsphy_cfg,
 	}, {
 		.compatible = "qcom,sc8180x-qmp-ufs-phy",
 		.data = &sm8150_ufsphy_cfg,
-- 
2.37.2


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[PATCH v2 4/5] arm64: dts: qcom: sa8775p: add UFS nodes

[Bartosz Golaszewski]

From: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

Add nodes for the UFS and its PHY on sa8775p platforms.

Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
---
 arch/arm64/boot/dts/qcom/sa8775p.dtsi | 58 +++++++++++++++++++++++++++
 1 file changed, 58 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/sa8775p.dtsi b/arch/arm64/boot/dts/qcom/sa8775p.dtsi
index 2343df7e0ea4..5de0fbbe9752 100644
--- a/arch/arm64/boot/dts/qcom/sa8775p.dtsi
+++ b/arch/arm64/boot/dts/qcom/sa8775p.dtsi
@@ -585,6 +585,64 @@ &clk_virt SLAVE_QUP_CORE_1 QCOM_ICC_TAG_ALWAYS>,
 			};
 		};
 
+		ufs_mem_hc: ufs@1d84000 {
+			compatible = "qcom,sa8775p-ufshc", "qcom,ufshc", "jedec,ufs-2.0";
+			reg = <0x0 0x01d84000 0x0 0x3000>;
+			interrupts = <GIC_SPI 265 IRQ_TYPE_LEVEL_HIGH>;
+			phys = <&ufs_mem_phy>;
+			phy-names = "ufsphy";
+			lanes-per-direction = <2>;
+			#reset-cells = <1>;
+			resets = <&gcc GCC_UFS_PHY_BCR>;
+			reset-names = "rst";
+			power-domains = <&gcc UFS_PHY_GDSC>;
+			required-opps = <&rpmhpd_opp_nom>;
+			iommus = <&apps_smmu 0x100 0x0>;
+			clocks = <&gcc GCC_UFS_PHY_AXI_CLK>,
+				 <&gcc GCC_AGGRE_UFS_PHY_AXI_CLK>,
+				 <&gcc GCC_UFS_PHY_AHB_CLK>,
+				 <&gcc GCC_UFS_PHY_UNIPRO_CORE_CLK>,
+				 <&rpmhcc RPMH_CXO_CLK>,
+				 <&gcc GCC_UFS_PHY_TX_SYMBOL_0_CLK>,
+				 <&gcc GCC_UFS_PHY_RX_SYMBOL_0_CLK>,
+				 <&gcc GCC_UFS_PHY_RX_SYMBOL_1_CLK>;
+			clock-names = "core_clk",
+				      "bus_aggr_clk",
+				      "iface_clk",
+				      "core_clk_unipro",
+				      "ref_clk",
+				      "tx_lane0_sync_clk",
+				      "rx_lane0_sync_clk",
+				      "rx_lane1_sync_clk";
+			freq-table-hz = <75000000 300000000>,
+					<0 0>,
+					<0 0>,
+					<75000000 300000000>,
+					<0 0>,
+					<0 0>,
+					<0 0>,
+					<0 0>;
+			status = "disabled";
+		};
+
+		ufs_mem_phy: phy@1d87000 {
+			compatible = "qcom,sa8775p-qmp-ufs-phy";
+			reg = <0x0 0x01d87000 0x0 0xe10>;
+			/*
+			 * Yes, GCC_EDP_REF_CLKREF_EN is correct in qref. It
+			 * enables the CXO clock to eDP *and* UFS PHY.
+			 */
+			clocks = <&rpmhcc RPMH_CXO_CLK>,
+				 <&gcc GCC_UFS_PHY_PHY_AUX_CLK>,
+				 <&gcc GCC_EDP_REF_CLKREF_EN>;
+			clock-names = "ref", "ref_aux", "qref";
+			power-domains = <&gcc UFS_PHY_GDSC>;
+			resets = <&ufs_mem_hc 0>;
+			reset-names = "ufsphy";
+			#phy-cells = <0>;
+			status = "disabled";
+		};
+
 		tcsr_mutex: hwlock@1f40000 {
 			compatible = "qcom,tcsr-mutex";
 			reg = <0x0 0x01f40000 0x0 0x20000>;
-- 
2.37.2


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[PATCH v2 5/5] arm64: dts: qcom: sa8775p-ride: enable UFS

[Bartosz Golaszewski]

From: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

Enable the UFS and its PHY on sa8775p-ride.

Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
---
 arch/arm64/boot/dts/qcom/sa8775p-ride.dts | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/sa8775p-ride.dts b/arch/arm64/boot/dts/qcom/sa8775p-ride.dts
index f238a02a5448..2bb001a3ea55 100644
--- a/arch/arm64/boot/dts/qcom/sa8775p-ride.dts
+++ b/arch/arm64/boot/dts/qcom/sa8775p-ride.dts
@@ -5,6 +5,7 @@
 
 /dts-v1/;
 
+#include <dt-bindings/gpio/gpio.h>
 #include <dt-bindings/regulator/qcom,rpmh-regulator.h>
 
 #include "sa8775p.dtsi"
@@ -20,6 +21,7 @@ aliases {
 		serial2 = &uart17;
 		i2c18 = &i2c18;
 		spi16 = &spi16;
+		ufshc1 = &ufs_mem_hc;
 	};
 
 	chosen {
@@ -426,6 +428,23 @@ &uart17 {
 	status = "okay";
 };
 
+&ufs_mem_hc {
+	reset-gpios = <&tlmm 149 GPIO_ACTIVE_LOW>;
+	vcc-supply = <&vreg_l8a>;
+	vcc-max-microamp = <1100000>;
+	vccq-supply = <&vreg_l4c>;
+	vccq-max-microamp = <1200000>;
+
+	status = "okay";
+};
+
+&ufs_mem_phy {
+	vdda-phy-supply = <&vreg_l4a>;
+	vdda-pll-supply = <&vreg_l1c>;
+
+	status = "okay";
+};
+
 &xo_board_clk {
 	clock-frequency = <38400000>;
 };
-- 
2.37.2


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Re: [PATCH v2 4/5] arm64: dts: qcom: sa8775p: add UFS nodes

[Konrad Dybcio]

On 6.04.2023 21:47, Bartosz Golaszewski wrote:
> From: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
> 
> Add nodes for the UFS and its PHY on sa8775p platforms.
> 
> Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
> ---
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>

Konrad
>  arch/arm64/boot/dts/qcom/sa8775p.dtsi | 58 +++++++++++++++++++++++++++
>  1 file changed, 58 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/qcom/sa8775p.dtsi b/arch/arm64/boot/dts/qcom/sa8775p.dtsi
> index 2343df7e0ea4..5de0fbbe9752 100644
> --- a/arch/arm64/boot/dts/qcom/sa8775p.dtsi
> +++ b/arch/arm64/boot/dts/qcom/sa8775p.dtsi
> @@ -585,6 +585,64 @@ &clk_virt SLAVE_QUP_CORE_1 QCOM_ICC_TAG_ALWAYS>,
>  			};
>  		};
>  
> +		ufs_mem_hc: ufs@1d84000 {
> +			compatible = "qcom,sa8775p-ufshc", "qcom,ufshc", "jedec,ufs-2.0";
> +			reg = <0x0 0x01d84000 0x0 0x3000>;
> +			interrupts = <GIC_SPI 265 IRQ_TYPE_LEVEL_HIGH>;
> +			phys = <&ufs_mem_phy>;
> +			phy-names = "ufsphy";
> +			lanes-per-direction = <2>;
> +			#reset-cells = <1>;
> +			resets = <&gcc GCC_UFS_PHY_BCR>;
> +			reset-names = "rst";
> +			power-domains = <&gcc UFS_PHY_GDSC>;
> +			required-opps = <&rpmhpd_opp_nom>;
> +			iommus = <&apps_smmu 0x100 0x0>;
> +			clocks = <&gcc GCC_UFS_PHY_AXI_CLK>,
> +				 <&gcc GCC_AGGRE_UFS_PHY_AXI_CLK>,
> +				 <&gcc GCC_UFS_PHY_AHB_CLK>,
> +				 <&gcc GCC_UFS_PHY_UNIPRO_CORE_CLK>,
> +				 <&rpmhcc RPMH_CXO_CLK>,
> +				 <&gcc GCC_UFS_PHY_TX_SYMBOL_0_CLK>,
> +				 <&gcc GCC_UFS_PHY_RX_SYMBOL_0_CLK>,
> +				 <&gcc GCC_UFS_PHY_RX_SYMBOL_1_CLK>;
> +			clock-names = "core_clk",
> +				      "bus_aggr_clk",
> +				      "iface_clk",
> +				      "core_clk_unipro",
> +				      "ref_clk",
> +				      "tx_lane0_sync_clk",
> +				      "rx_lane0_sync_clk",
> +				      "rx_lane1_sync_clk";
> +			freq-table-hz = <75000000 300000000>,
> +					<0 0>,
> +					<0 0>,
> +					<75000000 300000000>,
> +					<0 0>,
> +					<0 0>,
> +					<0 0>,
> +					<0 0>;
> +			status = "disabled";
> +		};
> +
> +		ufs_mem_phy: phy@1d87000 {
> +			compatible = "qcom,sa8775p-qmp-ufs-phy";
> +			reg = <0x0 0x01d87000 0x0 0xe10>;
> +			/*
> +			 * Yes, GCC_EDP_REF_CLKREF_EN is correct in qref. It
> +			 * enables the CXO clock to eDP *and* UFS PHY.
> +			 */
> +			clocks = <&rpmhcc RPMH_CXO_CLK>,
> +				 <&gcc GCC_UFS_PHY_PHY_AUX_CLK>,
> +				 <&gcc GCC_EDP_REF_CLKREF_EN>;
> +			clock-names = "ref", "ref_aux", "qref";
> +			power-domains = <&gcc UFS_PHY_GDSC>;
> +			resets = <&ufs_mem_hc 0>;
> +			reset-names = "ufsphy";
> +			#phy-cells = <0>;
> +			status = "disabled";
> +		};
> +
>  		tcsr_mutex: hwlock@1f40000 {
>  			compatible = "qcom,tcsr-mutex";
>  			reg = <0x0 0x01f40000 0x0 0x20000>;

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Re: [PATCH v2 1/5] dt-bindings: ufs: qcom: add compatible for sa8775p

[Krzysztof Kozlowski]

On 06/04/2023 21:46, Bartosz Golaszewski wrote:
> From: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
> 
> Add the compatible string for the UFS on sa8775p platforms.
> 
> Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>


Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>

Best regards,
Krzysztof


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Re: [PATCH v2 2/5] dt-bindings: phy: qmp-ufs: describe the UFS PHY for sa8775p

[Krzysztof Kozlowski]

On 06/04/2023 21:47, Bartosz Golaszewski wrote:
> From: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
> 
> Add a new compatible for the QMP UFS PHY found on sa8775p platforms and
> update the clocks property to accommodate three clocks.
> 
> Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
> ---
>  .../phy/qcom,sc8280xp-qmp-ufs-phy.yaml        | 26 ++++++++++++++++++-
>  1 file changed, 25 insertions(+), 1 deletion(-)
> 
> diff --git a/Documentation/devicetree/bindings/phy/qcom,sc8280xp-qmp-ufs-phy.yaml b/Documentation/devicetree/bindings/phy/qcom,sc8280xp-qmp-ufs-phy.yaml
> index cd0fbbd3593d..5bc93acccbad 100644
> --- a/Documentation/devicetree/bindings/phy/qcom,sc8280xp-qmp-ufs-phy.yaml
> +++ b/Documentation/devicetree/bindings/phy/qcom,sc8280xp-qmp-ufs-phy.yaml
> @@ -16,6 +16,7 @@ description:
>  properties:
>    compatible:
>      enum:
> +      - qcom,sa8775p-qmp-ufs-phy
>        - qcom,sc8280xp-qmp-ufs-phy
>        - qcom,sm6125-qmp-ufs-phy
>        - qcom,sm7150-qmp-ufs-phy
> @@ -25,12 +26,15 @@ properties:
>      maxItems: 1
>  
>    clocks:
> -    maxItems: 2
> +    minItems: 2
> +    maxItems: 3
>  
>    clock-names:
> +    minItems: 2
>      items:
>        - const: ref
>        - const: ref_aux
> +      - const: qref
>  
>    power-domains:
>      maxItems: 1
> @@ -52,6 +56,26 @@ properties:
>    "#phy-cells":
>      const: 0
>  
> +allOf:

I should notice wrong different placement before.
allOf: blocks goes just like in example-schema, so after required:.


Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>

> +  - if:
> +      properties:
> +        compatible:
> +          contains:
> +            enum:
> +              - qcom,sa8775p-qmp-ufs-phy
> +    then:
> +      properties:
> +        clocks:
> +          maxItems: 3
> +        clock-names:
> +          maxItems: 3
> +    else:
> +      properties:
> +        clocks:
> +          maxItems: 2
> +        clock-names:
> +          maxItems: 2
> +
>  required:
>    - compatible
>    - reg

Best regards,
Krzysztof


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Re: [PATCH v2 2/5] dt-bindings: phy: qmp-ufs: describe the UFS PHY for sa8775p

[Rob Herring]

On Thu, Apr 06, 2023 at 09:47:00PM +0200, Bartosz Golaszewski wrote:
> From: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
> 
> Add a new compatible for the QMP UFS PHY found on sa8775p platforms and
> update the clocks property to accommodate three clocks.
> 
> Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
> ---
>  .../phy/qcom,sc8280xp-qmp-ufs-phy.yaml        | 26 ++++++++++++++++++-
>  1 file changed, 25 insertions(+), 1 deletion(-)
> 
> diff --git a/Documentation/devicetree/bindings/phy/qcom,sc8280xp-qmp-ufs-phy.yaml b/Documentation/devicetree/bindings/phy/qcom,sc8280xp-qmp-ufs-phy.yaml
> index cd0fbbd3593d..5bc93acccbad 100644
> --- a/Documentation/devicetree/bindings/phy/qcom,sc8280xp-qmp-ufs-phy.yaml
> +++ b/Documentation/devicetree/bindings/phy/qcom,sc8280xp-qmp-ufs-phy.yaml
> @@ -16,6 +16,7 @@ description:
>  properties:
>    compatible:
>      enum:
> +      - qcom,sa8775p-qmp-ufs-phy
>        - qcom,sc8280xp-qmp-ufs-phy
>        - qcom,sm6125-qmp-ufs-phy
>        - qcom,sm7150-qmp-ufs-phy
> @@ -25,12 +26,15 @@ properties:
>      maxItems: 1
>  
>    clocks:
> -    maxItems: 2
> +    minItems: 2
> +    maxItems: 3
>  
>    clock-names:
> +    minItems: 2
>      items:
>        - const: ref
>        - const: ref_aux
> +      - const: qref
>  
>    power-domains:
>      maxItems: 1
> @@ -52,6 +56,26 @@ properties:
>    "#phy-cells":
>      const: 0
>  
> +allOf:
> +  - if:
> +      properties:
> +        compatible:
> +          contains:
> +            enum:
> +              - qcom,sa8775p-qmp-ufs-phy
> +    then:
> +      properties:
> +        clocks:
> +          maxItems: 3
> +        clock-names:
> +          maxItems: 3

The max is already 3. Did you mean 'minItems: 3' or 2 or 3 clocks are 
valid?

> +    else:
> +      properties:
> +        clocks:
> +          maxItems: 2
> +        clock-names:
> +          maxItems: 2
> +
>  required:
>    - compatible
>    - reg
> -- 
> 2.37.2
> 

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Re: [PATCH v2 2/5] dt-bindings: phy: qmp-ufs: describe the UFS PHY for sa8775p

[Bartosz Golaszewski]

On Tue, 11 Apr 2023 at 15:17, Rob Herring <robh@kernel.org> wrote:
>
> On Thu, Apr 06, 2023 at 09:47:00PM +0200, Bartosz Golaszewski wrote:
> > From: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
> >
> > Add a new compatible for the QMP UFS PHY found on sa8775p platforms and
> > update the clocks property to accommodate three clocks.
> >
> > Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
> > ---
> >  .../phy/qcom,sc8280xp-qmp-ufs-phy.yaml        | 26 ++++++++++++++++++-
> >  1 file changed, 25 insertions(+), 1 deletion(-)
> >
> > diff --git a/Documentation/devicetree/bindings/phy/qcom,sc8280xp-qmp-ufs-phy.yaml b/Documentation/devicetree/bindings/phy/qcom,sc8280xp-qmp-ufs-phy.yaml
> > index cd0fbbd3593d..5bc93acccbad 100644
> > --- a/Documentation/devicetree/bindings/phy/qcom,sc8280xp-qmp-ufs-phy.yaml
> > +++ b/Documentation/devicetree/bindings/phy/qcom,sc8280xp-qmp-ufs-phy.yaml
> > @@ -16,6 +16,7 @@ description:
> >  properties:
> >    compatible:
> >      enum:
> > +      - qcom,sa8775p-qmp-ufs-phy
> >        - qcom,sc8280xp-qmp-ufs-phy
> >        - qcom,sm6125-qmp-ufs-phy
> >        - qcom,sm7150-qmp-ufs-phy
> > @@ -25,12 +26,15 @@ properties:
> >      maxItems: 1
> >
> >    clocks:
> > -    maxItems: 2
> > +    minItems: 2
> > +    maxItems: 3
> >
> >    clock-names:
> > +    minItems: 2
> >      items:
> >        - const: ref
> >        - const: ref_aux
> > +      - const: qref
> >
> >    power-domains:
> >      maxItems: 1
> > @@ -52,6 +56,26 @@ properties:
> >    "#phy-cells":
> >      const: 0
> >
> > +allOf:
> > +  - if:
> > +      properties:
> > +        compatible:
> > +          contains:
> > +            enum:
> > +              - qcom,sa8775p-qmp-ufs-phy
> > +    then:
> > +      properties:
> > +        clocks:
> > +          maxItems: 3
> > +        clock-names:
> > +          maxItems: 3
>
> The max is already 3. Did you mean 'minItems: 3' or 2 or 3 clocks are
> valid?
>

For this compatible only 3 clocks are valid so it should have been
minItems indeed.

Bartosz

> > +    else:
> > +      properties:
> > +        clocks:
> > +          maxItems: 2
> > +        clock-names:
> > +          maxItems: 2
> > +
> >  required:
> >    - compatible
> >    - reg
> > --
> > 2.37.2
> >

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