Re: [RESEND PATCH v3 11/11] clk: stm32mp1: new compatible for secure RCC support
From: gabriel.fernandez@xxxxxxxxxxx
Date: Fri Jun 18 2021 - 09:25:30 EST
Yes we could have considered it as a feature but we think it's better to
manage it as a layer of our driver via a compatible.
On 6/17/21 8:46 AM, Marek Vasut wrote:
On 6/17/21 7:18 AM, gabriel.fernandez@xxxxxxxxxxx wrote:
From: Gabriel Fernandez <gabriel.fernandez@xxxxxxxxxxx>
Platform STM32MP1 can be used in configuration where some clock
resources cannot be accessed by Linux kernel when executing in non-secure
state of the CPU(s).
In such configuration, the RCC clock driver must not register clocks
it cannot access.
They are expected to be registered from another clock driver such
as the SCMI clock driver.
This change uses specific compatible string "st,stm32mp1-rcc-secure"
to specify RCC clock driver configuration where RCC is secure.
Should this really be a new compatible string or rather a DT property ?
I think the later, since this is the same clock IP, only operating in
different "mode" , no ?