linux-kernel - RE: [PATCH] drivers: clk: zynqmp: remove clock name dependency

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Date: Mon, 29 Jan 2024 16:48:31 +0000
From: "Trivedi Manojbhai, Naman" <Naman.TrivediManojbhai@....com>
To: Stephen Boyd <sboyd@...nel.org>, "Simek, Michal" <michal.simek@....com>,
	"robh@...nel.org" <robh@...nel.org>
CC: "linux-clk@...r.kernel.org" <linux-clk@...r.kernel.org>,
	"linux-arm-kernel@...ts.infradead.org"
	<linux-arm-kernel@...ts.infradead.org>, "linux-kernel@...r.kernel.org"
	<linux-kernel@...r.kernel.org>
Subject: RE: [PATCH] drivers: clk: zynqmp: remove clock name dependency

Hi Stephen,

A gentle reminder. Can you please help me to clarify the below query?

Thanks,
Naman

>-----Original Message-----
>From: Trivedi Manojbhai, Naman
>Sent: Tuesday, January 9, 2024 4:55 PM
>To: Stephen Boyd <sboyd@...nel.org>; abel.vesa@...aro.org;
>angelogioacchino.delregno@...labora.com; Simek, Michal
><michal.simek@....com>; mturquette@...libre.com; robh@...nel.org
>Cc: linux-clk@...r.kernel.org; linux-arm-kernel@...ts.infradead.org; linux-
>kernel@...r.kernel.org
>Subject: RE: [PATCH] drivers: clk: zynqmp: remove clock name dependency
>
>Hi Stephen,
>
>Thanks for review. Please find my response inline.
>
>Thanks,
>Naman
>
>>-----Original Message-----
>>From: Stephen Boyd <sboyd@...nel.org>
>>Sent: Thursday, January 4, 2024 6:30 AM
>>To: Trivedi Manojbhai, Naman <Naman.TrivediManojbhai@....com>;
>>abel.vesa@...aro.org; angelogioacchino.delregno@...labora.com;
>>krzysztof.kozlowski@...aro.org; Simek, Michal <michal.simek@....com>;
>>mturquette@...libre.com; robh@...nel.org
>>Cc: linux-clk@...r.kernel.org; linux-arm-kernel@...ts.infradead.org;
>>linux- kernel@...r.kernel.org; Trivedi Manojbhai, Naman
>><Naman.TrivediManojbhai@....com>
>>Subject: Re: [PATCH] drivers: clk: zynqmp: remove clock name dependency
>>
>>Caution: This message originated from an External Source. Use proper
>>caution when opening attachments, clicking links, or responding.
>>
>>
>>Quoting Naman Trivedi Manojbhai (2024-01-02 23:20:17)
>>> Currently, from zynqmp_get_parent_list() function the clock driver
>>> references the clock by name instead of its reference from device tree.
>>> This causes problem when the clock name in the device tree is changed.
>>>
>>> Remove hard dependency of clock name and update the logic to use
>>> clock reference from device tree instead of clock name.
>>
>>Please use struct clk_parent_data instead.
>Can you please clarify how struct clk_parent_data can be used here?
>
>The zynqmp clock driver receives clock parent information from firmware and it
>is stored in struct clock_parent. In this patch, I added logic to get the parent
>clock reference from device tree and get corresponding clock name. Can you
>please explain how the struct clk_parent_data can be used for the same?
>
>Thanks,
>Naman