diff mbox series

[01/14] dt-bindings: phy: qcom,qmp-usb3-dp: rename current bindings

Message ID 20221111092457.10546-2-johan+linaro@kernel.org
State New
Headers
Series phy: qcom-qmp-combo: fix sc8280xp binding (set 3/3) |

Commit Message

Johan Hovold Nov. 11, 2022, 9:24 a.m. UTC 
  The current QMP USB3-DP 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.

The QMP USB3-DP PHY block provides a single multi-protocol PHY and
even if some resources are only used by either the USB or DP part of the
device there is no real benefit in describing these resources in child
nodes.

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 PCS_LANE
registers).

In preparation for adding new bindings for SC8280XP which further
bindings can be based on, rename the current schema file after SC7180,
which was the first supported platform, and add a reference to the
SC8280XP bindings.

Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
---
 ...3-dp-phy.yaml => qcom,sc7180-qmp-usb3-dp-phy.yaml} | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)
 rename Documentation/devicetree/bindings/phy/{qcom,qmp-usb3-dp-phy.yaml => qcom,sc7180-qmp-usb3-dp-phy.yaml} (92%)

Comments

Krzysztof Kozlowski Nov. 11, 2022, 3:15 p.m. UTC | #1 
On 11/11/2022 10:24, Johan Hovold wrote:
> The current QMP USB3-DP 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.
> 
> The QMP USB3-DP PHY block provides a single multi-protocol PHY and
> even if some resources are only used by either the USB or DP part of the
> device there is no real benefit in describing these resources in child
> nodes.
> 
> 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 PCS_LANE
> registers).
> 
> In preparation for adding new bindings for SC8280XP which further
> bindings can be based on, rename the current schema file after SC7180,
> which was the first supported platform, and add a reference to the
> SC8280XP bindings.
> 
> Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
> ---
>  ...3-dp-phy.yaml => qcom,sc7180-qmp-usb3-dp-phy.yaml} | 11 +++++++++--
>  1 file changed, 9 insertions(+), 2 deletions(-)
>  rename Documentation/devicetree/bindings/phy/{qcom,qmp-usb3-dp-phy.yaml => qcom,sc7180-qmp-usb3-dp-phy.yaml} (92%)
> 
> diff --git a/Documentation/devicetree/bindings/phy/qcom,qmp-usb3-dp-phy.yaml b/Documentation/devicetree/bindings/phy/qcom,sc7180-qmp-usb3-dp-phy.yaml
> similarity index 92%
> rename from Documentation/devicetree/bindings/phy/qcom,qmp-usb3-dp-phy.yaml
> rename to Documentation/devicetree/bindings/phy/qcom,sc7180-qmp-usb3-dp-phy.yaml
> index 97a7ecafbf85..50b1fce530d5 100644
> --- a/Documentation/devicetree/bindings/phy/qcom,qmp-usb3-dp-phy.yaml
> +++ b/Documentation/devicetree/bindings/phy/qcom,sc7180-qmp-usb3-dp-phy.yaml
> @@ -2,10 +2,17 @@
>  
>  %YAML 1.2
>  ---
> -$id: "http://devicetree.org/schemas/phy/qcom,qmp-usb3-dp-phy.yaml#"
> +$id: "http://devicetree.org/schemas/phy/qcom,sc7180-qmp-usb3-dp-phy.yaml#"
>  $schema: "http://devicetree.org/meta-schemas/core.yaml#"

Since you are touching one line here, maybe let's drop the quotes from
both of them?

In any case:

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

Best regards,
Krzysztof
diff mbox series

Patch

diff --git a/Documentation/devicetree/bindings/phy/qcom,qmp-usb3-dp-phy.yaml b/Documentation/devicetree/bindings/phy/qcom,sc7180-qmp-usb3-dp-phy.yaml
similarity index 92%
rename from Documentation/devicetree/bindings/phy/qcom,qmp-usb3-dp-phy.yaml
rename to Documentation/devicetree/bindings/phy/qcom,sc7180-qmp-usb3-dp-phy.yaml
index 97a7ecafbf85..50b1fce530d5 100644
--- a/Documentation/devicetree/bindings/phy/qcom,qmp-usb3-dp-phy.yaml
+++ b/Documentation/devicetree/bindings/phy/qcom,sc7180-qmp-usb3-dp-phy.yaml
@@ -2,10 +2,17 @@ 
 
 %YAML 1.2
 ---
-$id: "http://devicetree.org/schemas/phy/qcom,qmp-usb3-dp-phy.yaml#"
+$id: "http://devicetree.org/schemas/phy/qcom,sc7180-qmp-usb3-dp-phy.yaml#"
 $schema: "http://devicetree.org/meta-schemas/core.yaml#"
 
-title: Qualcomm QMP USB3 DP PHY controller
+title: Qualcomm QMP USB3 DP PHY controller (SC7180)
+
+description:
+  The 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-usb43dp-phy.yaml.
 
 maintainers:
   - Wesley Cheng <quic_wcheng@quicinc.com>