Messages in this thread | | | Date | Tue, 2 Aug 2022 12:59:30 +0200 | Subject | Re: [PATCH 2/3] drivers: bus: simple-pm-bus: Use clocks | From | Krzysztof Kozlowski <> |
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On 02/08/2022 12:56, Krzysztof Kozlowski wrote: > On 02/08/2022 09:13, Liu Ying wrote: >> Simple Power-Managed bus controller may need functional clock(s) >> to be enabled before child devices connected to the bus can be >> accessed. Get the clock(s) as a bulk and enable/disable the >> clock(s) when the bus is being power managed. >> >> One example is that Freescale i.MX8qxp pixel link MSI bus controller >> needs MSI clock and AHB clock to be enabled before accessing child >> devices. > > No, because it is not simple bus anymore.
Hm, actually I take back my no, as this pm-bus was done for such purpose. Since we allow power domains, we should also allow clocks.
Best regards, Krzysztof
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