| Message ID | 20221024100632.20549-11-johan+linaro@kernel.org |
|---|---|
| State | Superseded |
| Headers | show |
| Series | phy: qcom-qmp-usb: fix sc8280xp binding | expand |
On 24/10/2022 06:06, Johan Hovold wrote: > The current QMP USB PHY bindings are based on the original MSM8996 > binding which provided multiple PHYs per IP block and these in turn were > described by child nodes. > > Later QMP USB PHY blocks only provide a single PHY and the remnant child > node does not really reflect the hardware. > > The original MSM8996 binding also ended up describing the individual > register blocks as belonging to either the wrapper node or the PHY child > nodes. > > This is an unnecessary level of detail which has lead to problems when > later IP blocks using different register layouts have been forced to fit > the original mould rather than updating the binding. The bindings are > arguable also incomplete as they only the describe register blocks used > by the current Linux drivers (e.g. does not include the per lane PCS > registers). > > In preparation for adding new bindings for SC8280XP which further > bindings can be based on, rename the current bindings after MSM8996 and > add a reference to the SC8280XP bindings. > > Signed-off-by: Johan Hovold <johan+linaro@kernel.org> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Best regards, Krzysztof
diff --git a/Documentation/devicetree/bindings/phy/qcom,qmp-usb-phy.yaml b/Documentation/devicetree/bindings/phy/qcom,msm8996-qmp-usb-phy.yaml similarity index 97% rename from Documentation/devicetree/bindings/phy/qcom,qmp-usb-phy.yaml rename to Documentation/devicetree/bindings/phy/qcom,msm8996-qmp-usb-phy.yaml index 7acb4b7de7f9..a72e96f241d1 100644 --- a/Documentation/devicetree/bindings/phy/qcom,qmp-usb-phy.yaml +++ b/Documentation/devicetree/bindings/phy/qcom,msm8996-qmp-usb-phy.yaml @@ -1,10 +1,10 @@ # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) %YAML 1.2 --- -$id: http://devicetree.org/schemas/phy/qcom,qmp-usb-phy.yaml# +$id: http://devicetree.org/schemas/phy/qcom,msm8996-qmp-usb-phy.yaml# $schema: http://devicetree.org/meta-schemas/core.yaml# -title: Qualcomm QMP PHY controller (USB) +title: Qualcomm QMP PHY controller (USB, MSM8996) maintainers: - Vinod Koul <vkoul@kernel.org> @@ -13,6 +13,9 @@ description: QMP PHY controller supports physical layer functionality for a number of controllers on Qualcomm chipsets, such as, PCIe, UFS, and USB. + Note that these bindings are for SoCs up to SC8180X. For newer SoCs, see + qcom,sc8280xp-qmp-usb-phy.yaml. + properties: compatible: enum:
The current QMP USB PHY bindings are based on the original MSM8996 binding which provided multiple PHYs per IP block and these in turn were described by child nodes. Later QMP USB PHY blocks only provide a single PHY and the remnant child node does not really reflect the hardware. The original MSM8996 binding also ended up describing the individual register blocks as belonging to either the wrapper node or the PHY child nodes. This is an unnecessary level of detail which has lead to problems when later IP blocks using different register layouts have been forced to fit the original mould rather than updating the binding. The bindings are arguable also incomplete as they only the describe register blocks used by the current Linux drivers (e.g. does not include the per lane PCS registers). In preparation for adding new bindings for SC8280XP which further bindings can be based on, rename the current bindings after MSM8996 and add a reference to the SC8280XP bindings. Signed-off-by: Johan Hovold <johan+linaro@kernel.org> --- ...qcom,qmp-usb-phy.yaml => qcom,msm8996-qmp-usb-phy.yaml} | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) rename Documentation/devicetree/bindings/phy/{qcom,qmp-usb-phy.yaml => qcom,msm8996-qmp-usb-phy.yaml} (97%)