linux-kernel - Aw: Re: [PATCH 1/2] dt-bindings: reset: mediatek: add MT7988 LVTS reset ID

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Date: Thu, 4 Jan 2024 21:54:40 +0100
From: Frank Wunderlich <frank-w@...lic-files.de>
To: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Cc: Daniel Golle <daniel@...rotopia.org>, Frank Wunderlich
 <linux@...web.de>, linux-mediatek@...ts.infradead.org, Michael Turquette
 <mturquette@...libre.com>, Stephen Boyd <sboyd@...nel.org>, Matthias
 Brugger <matthias.bgg@...il.com>, AngeloGioacchino Del Regno
 <angelogioacchino.delregno@...labora.com>, Philipp Zabel
 <p.zabel@...gutronix.de>, Rob Herring <robh+dt@...nel.org>, Krzysztof
 Kozlowski <krzysztof.kozlowski+dt@...aro.org>, Conor Dooley
 <conor+dt@...nel.org>, Sam Shih <sam.shih@...iatek.com>,
 linux-clk@...r.kernel.org, linux-kernel@...r.kernel.org,
 linux-arm-kernel@...ts.infradead.org, devicetree@...r.kernel.org
Subject: Aw: Re: [PATCH 1/2] dt-bindings: reset: mediatek: add MT7988 LVTS
 reset ID

Hi

> Gesendet: Donnerstag, 04. Januar 2024 um 20:19 Uhr
> Von: "Krzysztof Kozlowski" <krzysztof.kozlowski@...aro.org>
> Betreff: Re: [PATCH 1/2] dt-bindings: reset: mediatek: add MT7988 LVTS reset ID
>
> On 04/01/2024 19:12, Daniel Golle wrote:
> > Hi Frank,
> >
> > On Thu, Jan 04, 2024 at 06:39:29PM +0100, Frank Wunderlich wrote:
> >> From: Frank Wunderlich <frank-w@...lic-files.de>
> >>
> >> ---
> >>  include/dt-bindings/reset/mediatek,mt7988-resets.h | 4 ++++
> >>  1 file changed, 4 insertions(+)
> >>
> >> diff --git a/include/dt-bindings/reset/mediatek,mt7988-resets.h b/include/dt-bindings/reset/mediatek,mt7988-resets.h
> >> index 493301971367..3f1e4ec07ad5 100644
> >> --- a/include/dt-bindings/reset/mediatek,mt7988-resets.h
> >> +++ b/include/dt-bindings/reset/mediatek,mt7988-resets.h
> >> @@ -10,4 +10,8 @@
> >>  /* ETHWARP resets */
> >>  #define MT7988_ETHWARP_RST_SWITCH		0
> >>
> >> +/* INFRA resets */
> >> +#define MT7988_INFRA_RST0_THERM_CTRL_SWRST	9
> >
> > I suppose this argument applies here as well:
> >
> > "IDs should start from 0 or 1 and increment by 1. If these are not IDs,
> > then you do not need them in the bindings."
> >
> > https://lore.kernel.org/all/59629ec1-cc0c-4c5a-87cc-ea30d64ec191@linaro.org/
> >
> > As a consequence, as what you are describing there are hardware bits
>
> If this is existing driver which already uses such pattern, then it is
> fine. I usually comment this on new drivers which can be changed.

this is a new driver so i guess i should change this like daniel suggests.
As i want to use this constant in dts and driver i would like keep it as binding in the reset header,
but because i use it only as index in the infra_idx_map array its value does not need to have the value
needed in hardware. i kept it same to not have different values and for ordering purposes (when the other
possible resets are added).

so the way starting at 0 will be the preferred one for me, is this ok?

regards Frank