[PATCH v6 2/2] phy: qcom: qmp-usb: Add support for SA8255P
Manivannan Sadhasivam
mani at kernel.org
Fri Oct 16 08:46:42 PDT 2026
On 2026-10-02 11:39 +0200, Mattijs Korpershoek wrote:
> From: Sriram Dash <quic_sriramd at quicinc.com>
>
> The Qualcomm automotive SA8255p SoC relies on firmware to configure
> platform resources, including clocks, interconnects and TLMM.
> The driver requests resources operations over SCMI using power protocols.
>
> The SCMI power protocol enables or disables resources like clocks,
> interconnect paths, and TLMM (GPIOs) using runtime PM framework APIs,
> such as resume/suspend, to control power on/off.
>
> Power domain "core" controls the GDSC, resets, and TLMM (GPIOs)
> whereas power domain "transfer" controls clocks and interconnects.
>
> In this variant, two disjoint sets of resources are modeled against
> the power domain suppliers which can be turned on/off to achieve modeled
> device states. Two modeled low power states d1 and d3 are supported.
>
> transition: d0 <--> d3 :: both core and transfer suppliers
> transition: d0 <--> d1 :: only transfer supplier
>
> Signed-off-by: Sriram Dash <quic_sriramd at quicinc.com>
> Signed-off-by: Shazad Hussain <quic_shazhuss at quicinc.com>
> Reviewed-by: Neil Armstrong <neil.armstrong at linaro.org>
> Signed-off-by: Mattijs Korpershoek <mkorpershoek at kernel.org>
Same comment as the other series.
- Mani
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