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Message-ID: <186267bd495.c0d336602542450.72693939722996463@linux.beauty> Date: Mon, 06 Feb 2023 19:28:14 +0800 From: Li Chen <me@...ux.beauty> To: "Krzysztof Kozlowski" <krzysztof.kozlowski@...aro.org> 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 Hi Krzysztof , ---- On Fri, 27 Jan 2023 23:08:09 +0800 Krzysztof Kozlowski wrote --- > 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. If the only hardware resource the clock node can take is its parent clock(clocks = <&osc>;), then can I have this clock node? Regards, Li
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