On 7/11/2024 12:45 AM, Trilok Soni wrote: > On 7/10/2024 9:27 AM, Rob Herring wrote: >> On Tue, Jul 09, 2024 at 08:46:19PM +0800, Tengfei Fan wrote: >>> Document the compatible string for USB phy found in Qualcomm QCS9100 >>> SoC. >>> QCS9100 is drived from SA8775p. Currently, both the QCS9100 and SA8775p >>> platform use non-SCMI resource. In the future, the SA8775p platform will >>> move to use SCMI resources and it will have new sa8775p-related device >>> tree. Consequently, introduce "qcom,qcs9100-usb-hs-phy" to describe >>> non-SCMI based USB phy. >>> >>> Signed-off-by: Tengfei Fan <quic_tengfan@xxxxxxxxxxx> >>> --- >>> Introduce support for the QCS9100 SoC device tree (DTSI) and the >>> QCS9100 RIDE board DTS. The QCS9100 is a variant of the SA8775p. >>> While the QCS9100 platform is still in the early design stage, the >>> QCS9100 RIDE board is identical to the SA8775p RIDE board, except it >>> mounts the QCS9100 SoC instead of the SA8775p SoC. >>> >>> The QCS9100 SoC DTSI is directly renamed from the SA8775p SoC DTSI, and >>> all the compatible strings will be updated from "SA8775p" to "QCS9100". >>> The QCS9100 device tree patches will be pushed after all the device tree >>> bindings and device driver patches are reviewed. >> >> I'm not convinced this is not just pointless churn. Aren't we going to >> end up with 2 compatible strings for everything? SCMI should just change >> the providers, but otherwise the consumers are the same. I suppose if >> clocks are abstracted into power-domains (an abuse IMO) then the >> bindings change. >> >> Why do we need to support both SCMI and not-SCMI for the same chip? > > IOT SKU of this SOC is using the non-SCMI solution and Auto SKU > of this SOC is using the SCMI based solution due to additional > safety requirements. More add-on information, IOT SKU which have qcs9100 soc mounted will have firmware releases which support non-scmi solution. And AUTO SKU which mounted with SA8775p will have different firmware releases which support SCMI solution. > > -- Thx and BRs, Aiqun(Maria) Yu
