[PATCH RFC RESEND 6/7] i3c: mipi-i3c-hci: Factor out i3c_hci_sysdev()

[sashiko-bot at kernel.org]

> The MIPI I3C HCI driver needs to identify the underlying system device
> used for DMA mapping and PM operations. The logic for determining that
> device is currently embedded in the DMA implementation.
> 
> Factor this code out into i3c_hci_sysdev() so it can be shared by other
> parts of the driver and keep the device-selection logic in one place.
> 
> Signed-off-by: Adrian Hunter <adrian.hunter at intel.com>

Sashiko has reviewed this patch and found no issues. It looks great!

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Sashiko AI review · https://sashiko.dev/#/patchset/20260701201533.220818-1-adrian.hunter@intel.com?part=6