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

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Message-ID: <ZgyzxmuMIK87C2nW@dragon>
Date: Wed, 3 Apr 2024 09:41:26 +0800
From: Shawn Guo <shawnguo2@...h.net>
To: Frank Li <Frank.li@....com>
Cc: Fabio Estevam <festevam@...il.com>, 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 Tue, Apr 02, 2024 at 11:09:17AM -0400, Frank Li wrote:
> On Mon, Apr 01, 2024 at 08:04:56PM -0300, Fabio Estevam wrote:
> > 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.
> 
> This base on downstream dts code.  Downstream code use index in 'Col1' to
> get clock.

So s/exited/existing you meant?

Shawn