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From: Arnd Bergmann <arnd@arndb.de>
To: Alexandre TORGUE <alexandre.torgue@foss.st.com>
Cc: Ahmad Fatoum <a.fatoum@pengutronix.de>,
	Rob Herring <robh+dt@kernel.org>, Marek Vasut <marex@denx.de>,
	Jagan Teki <jagan@amarulasolutions.com>,
	Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>,
	Marcin Sloniewski <marcin.sloniewski@gmail.com>,
	Linux ARM <linux-arm-kernel@lists.infradead.org>,
	DTML <devicetree@vger.kernel.org>,
	linux-stm32@st-md-mailman.stormreply.com,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	Lee Jones <lee.jones@linaro.org>,
	Jakub Kicinski <kuba@kernel.org>
Subject: Re: [PATCH 12/13] ARM: dts: stm32: fix DSI port node on STM32MP15
Date: Mon, 19 Apr 2021 15:57:10 +0200	[thread overview]
Message-ID: <CAK8P3a1bGAUbqTGqyz+PB=7fuVLkJce0awtx1Z9PE3uiX6uysQ@mail.gmail.com> (raw)
In-Reply-To: <96da49dc-f24d-aa12-e1d8-39b5a5b6fbc9@foss.st.com>

On Thu, Apr 15, 2021 at 2:23 PM Alexandre TORGUE
<alexandre.torgue@foss.st.com> wrote:
> On 4/15/21 12:43 PM, Ahmad Fatoum wrote:
> > On 15.04.21 12:10, Alexandre Torgue wrote:
> >> Running "make dtbs_check W=1", some warnings are reported concerning
> >> DSI. This patch reorder DSI nodes to avoid:
> >>
> >> soc/dsi@5a000000: unnecessary #address-cells/#size-cells without
> >> "ranges" or child "reg" property
> >
> > This reverts parts of commit 9c32f980d9 ("ARM: dts: stm32: preset
> > stm32mp15x video #address- and #size-cells"):
> >
> >      The cell count for address and size is defined by the binding and not
> >      something a board would change. Avoid each board adding this
> >      boilerplate by having the cell size specification in the SoC DTSI.
> >
> >
> > The DSI can have child nodes with a unit address (e.g. a panel) and ones
> > without (ports { } container). ports is described in the dtsi, panels are
> > described in the dts if available.
> >
> > Apparently, the checker is fine with
> > ports {
> >       #address-cells = <1>;
> >       #size-cells = <0>;
> > };
> >
> > I think my rationale for the patch above was sound, so I think the checker
> > taking offense at the DSI cells here should be considered a false positive.
>
> If it's a "false positive" warning then we need to find a way to not
> print it out. Else, it'll be difficult to distinguish which warnings are
> "normal" and which are not. This question could also be applied to patch[3].
>
> Arnd, Rob what is your feeling about this case ?

I don't have a strong opinion on this either way, but I would just
not apply this one for 5.13 in this case. Rob, Alexandre, please
let me know if I should apply the other patches before the
merge window, I usually don't mind taking bugfixes late before the
merge window, but I still want some level of confidence that they
are actually correct.

Ahmad, if you feel strongly about this particular issue, would you like
to suggest a patch for the checker?

        Arnd

  reply	other threads:[~2021-04-19 13:57 UTC|newest]

Thread overview: 33+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-15 10:10 [PATCH 00/13] ARM: dts: stm32: fix "make dtbs_check W=1" round1 Alexandre Torgue
2021-04-15 10:10 ` [PATCH 01/13] ARM: dts: stm32: fix gpio-keys node on STM32 MCU boards Alexandre Torgue
2021-04-15 10:10 ` [PATCH 02/13] ARM: dts: stm32: fix RCC node name on stm32f429 MCU Alexandre Torgue
2021-04-15 10:10 ` [PATCH 03/13] ARM: dts: stm32: fix timer nodes on STM32 MCU to prevent warnings Alexandre Torgue
2021-04-16 15:52   ` [Linux-stm32] " Fabrice Gasnier
2021-04-15 10:10 ` [PATCH 04/13] dt-bindings: mfd: stm32-timers: remove #address/size cells from required properties Alexandre Torgue
2021-04-16 15:52   ` [Linux-stm32] " Fabrice Gasnier
2021-04-20 20:04   ` Rob Herring
2021-06-01 16:26   ` Lee Jones
2021-04-15 10:10 ` [PATCH 05/13] ARM: dts: stm32: update pinctrl node name on STM32 MCU to prevent warnings Alexandre Torgue
2021-04-15 10:10 ` [PATCH 06/13] ARM: dts: stm32: fix i2c node name on stm32f746 " Alexandre Torgue
2021-04-15 10:10 ` [PATCH 07/13] ARM: dts: stm32: move stmmac axi config in ethernet node on stm32mp15 Alexandre Torgue
2021-04-15 10:10 ` [PATCH 08/13] dt-bindings: net: document ptp_ref clk in dwmac Alexandre Torgue
2021-04-20 20:05   ` Rob Herring
2021-04-15 10:10 ` [PATCH 09/13] ARM: dts: stm32: fix stpmic node for stm32mp1 boards Alexandre Torgue
2021-06-10 14:33   ` Alexandre TORGUE
2021-04-15 10:10 ` [PATCH 10/13] dt-bindings: mfd: add vref_ddr-supply to st,stpmic1 yaml Alexandre Torgue
2021-04-15 10:51   ` Ahmad Fatoum
2021-04-15 12:12     ` Alexandre TORGUE
2021-04-15 10:10 ` [PATCH 11/13] ARM: dts: stm32: fix LTDC port node on STM32 MCU ad MPU Alexandre Torgue
2021-04-15 13:21   ` Marek Vasut
2021-04-15 13:34     ` Alexandre TORGUE
2021-04-15 14:30       ` Marek Vasut
2021-04-15 14:35         ` Alexandre TORGUE
2021-04-15 14:59           ` Marek Vasut
2021-04-15 10:10 ` [PATCH 12/13] ARM: dts: stm32: fix DSI port node on STM32MP15 Alexandre Torgue
2021-04-15 10:43   ` Ahmad Fatoum
2021-04-15 12:23     ` Alexandre TORGUE
2021-04-19 13:57       ` Arnd Bergmann [this message]
2021-04-19 14:04         ` Alexandre TORGUE
2021-05-04 13:16         ` Ahmad Fatoum
2021-04-15 10:10 ` [PATCH 13/13] ARM: dts: stm32: fix ltdc pinctrl on microdev2.0-of7 Alexandre Torgue
2021-06-01 10:37 ` [PATCH 00/13] ARM: dts: stm32: fix "make dtbs_check W=1" round1 Alexandre TORGUE

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