linux-kernel - Re: [PATCH 1/7] arm64: dts: imx8-ss-lsio: fix pwm lpcg indices

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Message-ID: <CAOMZO5AJrQ5jyV4A-tvX93-R0_nEWpEO9YY3f5DpeXaAFO4cSA@mail.gmail.com>
Date: Mon, 1 Apr 2024 20:04:56 -0300
From: Fabio Estevam <festevam@...il.com>
To: Frank Li <Frank.Li@....com>
Cc: Rob Herring <robh+dt@...nel.org>, 
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>, Conor Dooley <conor+dt@...nel.org>, 
	Shawn Guo <shawnguo@...nel.org>, Sascha Hauer <s.hauer@...gutronix.de>, 
	Pengutronix Kernel Team <kernel@...gutronix.de>, NXP Linux Team <linux-imx@....com>, 
	Marcel Ziswiler <marcel.ziswiler@...adex.com>, 
	Philippe Schenker <philippe.schenker@...adex.com>, 
	Max Krummenacher <max.krummenacher@...adex.com>, 
	Alexander Stein <alexander.stein@...tq-group.com>, Joakim Zhang <qiangqing.zhang@....com>, 
	devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, 
	linux-kernel@...r.kernel.org, stable@...r.kernel.org
Subject: Re: [PATCH 1/7] arm64: dts: imx8-ss-lsio: fix pwm lpcg indices

On Mon, Apr 1, 2024 at 7:25 PM Frank Li <Frank.Li@....com> wrote:
>
> lpcg's arg0 should use clock indices instead of index.
>
> pwm0_lpcg: clock-controller@...00000 {
>         ...                                                // Col1  Col2
>         clocks = <&clk IMX_SC_R_PWM_0 IMX_SC_PM_CLK_PER>,  // 0     0
>                  <&clk IMX_SC_R_PWM_0 IMX_SC_PM_CLK_PER>,  // 1     1
>                  <&clk IMX_SC_R_PWM_0 IMX_SC_PM_CLK_PER>,  // 2     4
>                  <&lsio_bus_clk>,                          // 3     5
>                  <&clk IMX_SC_R_PWM_0 IMX_SC_PM_CLK_PER>;  // 4     6
>         clock-indices = <IMX_LPCG_CLK_0>, <IMX_LPCG_CLK_1>,
>                         <IMX_LPCG_CLK_4>, <IMX_LPCG_CLK_5>,
>                         <IMX_LPCG_CLK_6>;
> };
>
> Col1: index, which exited dts try to get.

I cannot understand this sentence, sorry.

> Col2: actual index in lpcg driver.

You should not describe DT in terms of Linux driver.