mbox series

[v14,0/5] Enable IPQ9754 USB

Message ID cover.1686217906.git.quic_varada@quicinc.com
Headers show
Series Enable IPQ9754 USB | expand

Message

Varadarajan Narayanan June 8, 2023, 10:03 a.m. UTC
This patch series adds the relevant phy and controller
configurations for enabling USB on IPQ9754

Portions of the patchset have been merged. Please see
	https://lore.kernel.org/lkml/ZGN9gchu7dRb6QwC@matsya/

[v14]:
	- Missed Konrad's comment. Switch order of regulator-boot-on &
          regulator-always-on in mp5496_l2 node

[v13]:
	- Move fixed regulator definitions from SoC dtsi to board dts
	- Remove 'dr_mode' from SoC dtsi
	- Move 'status' property to the end

[v12]:
	- In dtsi usb@8a00000 -> usb@8af8800

[v11]:
	- Rename dwc_0 -> usb_0_dwc3
	- Minor change in qcom,sc8280xp-qmp-usb3-uni-phy.yaml to factor in
	  latest updates to the file

[v10]:
	- Fix regulator definitions
	- Address couple of other comments

[v9]:
	- Update bindings to make power-domains as optional since
	  IPQ9574 doesn't have GDSCs

[v8]:
	- Update bindings for the clock name change
[v7]:
	- com_aux -> cfg_ahb in patch 7

[v6]:
        - Incorporated review comments
	- Resolve make dtbs_check messages
	- Fixed pcs_usb offset
	- Board dts file name changed

[v5]:
        - Incorporated review comments
	- 'make dtbs_check' giving the following messages since
	  ipq9574 doesn't have power domains. Hope this is ok

		/local/mnt/workspace/varada/varda-linux/arch/arm64/boot/dts/qcom/ipq9574-al02-c7.dtb: phy@7d000: 'power-domains' is a required property
        	From schema: /local/mnt/workspace/varada/varda-linux/Documentation/devicetree/bindings/phy/qcom,sc8280xp-qmp-usb3-uni-phy.yaml
		/local/mnt/workspace/varada/varda-linux/arch/arm64/boot/dts/qcom/ipq9574-al02-c7.dtb: usb@8a00000: 'power-domains' is a required property
        	From schema: /local/mnt/workspace/varada/varda-linux/Documentation/devicetree/bindings/usb/qcom,dwc3.yaml

	- Move qmp phy DT node to newer specification

[v4]:
        - Incorporated review comments
	- Address all 'make dtbs_check' errors

[v3]:
        - Incorporated review comments regarding coding style

[v2]:
        - Incorporated review comments regarding coding style,
          maintaining sorted order of entries and unused phy register
          offsets
        - Removed NOC clock entries from DT node (will be implemented
          later with interconnect support)
        - Fixed 'make dtbs_check' errors/warnings

[v1]:
        https://lore.kernel.org/linux-arm-msm/5dac3aa4-8dc7-f9eb-5cf3-b361efdc9494@linaro.org/T/

Varadarajan Narayanan (5):
  dt-bindings: usb: dwc3: Add IPQ9574 compatible
  clk: qcom: gcc-ipq9574: Add USB related clocks
  arm64: dts: qcom: ipq9574: Add USB related nodes
  arm64: dts: qcom: ipq9574: Add LDO regulator node
  arm64: dts: qcom: ipq9574: Enable USB

 .../devicetree/bindings/usb/qcom,dwc3.yaml         |  3 +-
 arch/arm64/boot/dts/qcom/ipq9574-rdp433.dts        | 48 ++++++++++++
 arch/arm64/boot/dts/qcom/ipq9574.dtsi              | 85 ++++++++++++++++++++++
 drivers/clk/qcom/gcc-ipq9574.c                     | 37 ++++++++++
 include/dt-bindings/clock/qcom,ipq9574-gcc.h       |  2 +
 5 files changed, 174 insertions(+), 1 deletion(-)

Comments

Varadarajan Narayanan June 9, 2023, 6:02 a.m. UTC | #1
On Thu, Jun 08, 2023 at 02:06:49PM +0300, Dmitry Baryshkov wrote:
> On 08/06/2023 13:03, Varadarajan Narayanan wrote:
> >Add USB phy and controller related nodes
> >
> >SS PHY need two supplies and HS PHY needs three supplies. 0.925V
> >and 3.3V are from fixed regulators and 1.8V is generated from
> >PMIC's LDO
> >
> >Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
> >Signed-off-by: Varadarajan Narayanan <quic_varada@quicinc.com>
> >---
> >  Changes in v13:
> >	- Move fixed regulator definitions from SoC dtsi to board dts
> >	- Remove 'dr_mode' from SoC dtsi
> >	- Move 'status' property to the end
> >  Changes in v12:
> >	- Rebase
> >  Changes in v11:
> >	- Rename dwc_0 -> usb_0_dwc3
> >  Changes in v10:
> >	- Fix regulator definitions
> >  Changes in v8:
> >	- Change clocks order to match the bindings
> >  Changes in v7:
> >	- Change com_aux -> cfg_ahb
> >  Changes in v6:
> >	- Introduce fixed regulators for the phy
> >	- Resolved all 'make dtbs_check' messages
> >
> >  Changes in v5:
> >	- Fix additional comments
> >	- Edit nodes to match with qcom,sc8280xp-qmp-usb3-uni-phy.yaml
> >	- 'make dtbs_check' giving the following messages since
> >	  ipq9574 doesn't have power domains. Hope this is ok
> >
> >		/local/mnt/workspace/varada/varda-linux/arch/arm64/boot/dts/qcom/ipq9574-al02-c7.dtb: phy@7d000: 'power-domains' is a required property
> >         	From schema: /local/mnt/workspace/varada/varda-linux/Documentation/devicetree/bindings/phy/qcom,sc8280xp-qmp-usb3-uni-phy.yaml
> >		/local/mnt/workspace/varada/varda-linux/arch/arm64/boot/dts/qcom/ipq9574-al02-c7.dtb: usb@8a00000: 'power-domains' is a required property
> >         	From schema: /local/mnt/workspace/varada/varda-linux/Documentation/devicetree/bindings/usb/qcom,dwc3.yaml
> >
> >  Changes in v4:
> >	- Use newer bindings without subnodes
> >	- Fix coding style issues
> >
> >  Changes in v3:
> >	- Insert the nodes at proper location
> >
> >  Changes in v2:
> >	- Fixed issues flagged by Krzysztof
> >	- Fix issues reported by make dtbs_check
> >	- Remove NOC related clocks (to be added with proper
> >	  interconnect support)
> >---
> >  arch/arm64/boot/dts/qcom/ipq9574-rdp433.dts | 18 ++++++
> >  arch/arm64/boot/dts/qcom/ipq9574.dtsi       | 85 +++++++++++++++++++++++++++++
> >  2 files changed, 103 insertions(+)
> >
> >diff --git a/arch/arm64/boot/dts/qcom/ipq9574-rdp433.dts b/arch/arm64/boot/dts/qcom/ipq9574-rdp433.dts
> >index 2b3ed8d..8261a2b 100644
> >--- a/arch/arm64/boot/dts/qcom/ipq9574-rdp433.dts
> >+++ b/arch/arm64/boot/dts/qcom/ipq9574-rdp433.dts
> >@@ -21,6 +21,24 @@
> >  	chosen {
> >  		stdout-path = "serial0:115200n8";
> >  	};
> >+
> >+	regulator_fixed_3p3: s3300 {
> >+		compatible = "regulator-fixed";
> >+		regulator-min-microvolt = <3300000>;
> >+		regulator-max-microvolt = <3300000>;
> >+		regulator-boot-on;
> >+		regulator-always-on;
> >+		regulator-name = "fixed_3p3";
> >+	};
> >+
> >+	regulator_fixed_0p925: s0925 {
> >+		compatible = "regulator-fixed";
> >+		regulator-min-microvolt = <925000>;
> >+		regulator-max-microvolt = <925000>;
> >+		regulator-boot-on;
> >+		regulator-always-on;
> >+		regulator-name = "fixed_0p925";
> >+	};
> >  };
>
> Let me repeat from v13, so that it is not lost (please excuse me for the
> spam):
>
> Nit: these two regulators are not references from SoC dtsi. So they don't
> have to be a part of this commit and can be moved to one of the next commits
> (I'd prefer the last one).

Sure. Have posted v15 with the suggested changes.
Please review.

Thanks
Varada

>
> >  &blsp1_uart2 {
> >diff --git a/arch/arm64/boot/dts/qcom/ipq9574.dtsi b/arch/arm64/boot/dts/qcom/ipq9574.dtsi
> >index 0baeb10..feabc19 100644
> >--- a/arch/arm64/boot/dts/qcom/ipq9574.dtsi
> >+++ b/arch/arm64/boot/dts/qcom/ipq9574.dtsi
> >@@ -465,6 +465,91 @@
> >  			status = "disabled";
> >  		};
> >+		usb_0_qusbphy: phy@7b000 {
> >+			compatible = "qcom,ipq9574-qusb2-phy";
> >+			reg = <0x0007b000 0x180>;
> >+			#phy-cells = <0>;
> >+
> >+			clocks = <&gcc GCC_USB0_PHY_CFG_AHB_CLK>,
> >+				 <&xo_board_clk>;
> >+			clock-names = "cfg_ahb",
> >+				      "ref";
> >+
> >+			resets = <&gcc GCC_QUSB2_0_PHY_BCR>;
> >+			status = "disabled";
> >+		};
> >+
> >+		usb_0_qmpphy: phy@7d000 {
> >+			compatible = "qcom,ipq9574-qmp-usb3-phy";
> >+			reg = <0x0007d000 0xa00>;
> >+			#phy-cells = <0>;
> >+
> >+			clocks = <&gcc GCC_USB0_AUX_CLK>,
> >+				 <&xo_board_clk>,
> >+				 <&gcc GCC_USB0_PHY_CFG_AHB_CLK>,
> >+				 <&gcc GCC_USB0_PIPE_CLK>;
> >+			clock-names = "aux",
> >+				      "ref",
> >+				      "cfg_ahb",
> >+				      "pipe";
> >+
> >+			resets = <&gcc GCC_USB0_PHY_BCR>,
> >+				 <&gcc GCC_USB3PHY_0_PHY_BCR>;
> >+			reset-names = "phy",
> >+				      "phy_phy";
> >+
> >+			#clock-cells = <0>;
> >+			clock-output-names = "usb0_pipe_clk";
> >+
> >+			status = "disabled";
> >+		};
> >+
> >+		usb3: usb@8af8800 {
> >+			compatible = "qcom,ipq9574-dwc3", "qcom,dwc3";
> >+			reg = <0x08af8800 0x400>;
> >+			#address-cells = <1>;
> >+			#size-cells = <1>;
> >+			ranges;
> >+
> >+			clocks = <&gcc GCC_SNOC_USB_CLK>,
> >+				 <&gcc GCC_USB0_MASTER_CLK>,
> >+				 <&gcc GCC_ANOC_USB_AXI_CLK>,
> >+				 <&gcc GCC_USB0_SLEEP_CLK>,
> >+				 <&gcc GCC_USB0_MOCK_UTMI_CLK>;
> >+
> >+			clock-names = "cfg_noc",
> >+				      "core",
> >+				      "iface",
> >+				      "sleep",
> >+				      "mock_utmi";
> >+
> >+			assigned-clocks = <&gcc GCC_USB0_MASTER_CLK>,
> >+					  <&gcc GCC_USB0_MOCK_UTMI_CLK>;
> >+			assigned-clock-rates = <200000000>,
> >+					       <24000000>;
> >+
> >+			interrupts-extended = <&intc GIC_SPI 134 IRQ_TYPE_LEVEL_HIGH>;
> >+			interrupt-names = "pwr_event";
> >+
> >+			resets = <&gcc GCC_USB_BCR>;
> >+			status = "disabled";
> >+
> >+			usb_0_dwc3: usb@8a00000 {
> >+				compatible = "snps,dwc3";
> >+				reg = <0x8a00000 0xcd00>;
> >+				clocks = <&gcc GCC_USB0_MOCK_UTMI_CLK>;
> >+				clock-names = "ref";
> >+				interrupts = <GIC_SPI 140 IRQ_TYPE_LEVEL_HIGH>;
> >+				phys = <&usb_0_qusbphy>, <&usb_0_qmpphy>;
> >+				phy-names = "usb2-phy", "usb3-phy";
> >+				tx-fifo-resize;
> >+				snps,is-utmi-l1-suspend;
> >+				snps,hird-threshold = /bits/ 8 <0x0>;
> >+				snps,dis_u2_susphy_quirk;
> >+				snps,dis_u3_susphy_quirk;
> >+			};
> >+		};
> >+
> >  		intc: interrupt-controller@b000000 {
> >  			compatible = "qcom,msm-qgic2";
> >  			reg = <0x0b000000 0x1000>,  /* GICD */
>
> --
> With best wishes
> Dmitry
>