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Message-ID: <33c2038b-5e06-4eb2-82b8-007bb735bfb1@linaro.org>
Date: Fri, 27 Jan 2023 16:08:09 +0100
From: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To: Li Chen <me@...ux.beauty>
Cc: li chen <lchen@...arella.com>,
michael turquette <mturquette@...libre.com>,
stephen boyd <sboyd@...nel.org>,
rob herring <robh+dt@...nel.org>,
krzysztof kozlowski <krzysztof.kozlowski+dt@...aro.org>,
"moderated list:arm/ambarella soc support"
<linux-arm-kernel@...ts.infradead.org>,
"open list:common clk framework" <linux-clk@...r.kernel.org>,
"open list:open firmware and flattened device tree bindings"
<devicetree@...r.kernel.org>,
open list <linux-kernel@...r.kernel.org>,
arnd bergmann <arnd@...db.de>
Subject: Re: [PATCH 07/15] dt-bindings: clock: Add Ambarella clock bindings
On 27/01/2023 15:48, Li Chen wrote:
> >
> > but what you are saying is that there is no separate clock controller
> > device with its own IO address but these clocks are part of rct_syscon.
> > Then model it that way in DTS. The rct_syscon is then your clock
> > controller and all these fake gclk-core and gclk-ddr nodes should be gone.
>
> Ok, I will remove these fake nodes, and model the hardware as:
>
> rct_syscon node
> | clock node(pll, div, mux, composite clocks live in the same driver)
> | other periphal nodes
You need clock node if it takes any resources. If it doesn't, you do not
need it.
Best regards,
Krzysztof
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