From: Ahmad Fatoum <a.fatoum@pengutronix.de>
To: Alexandre Torgue <alexandre.torgue@foss.st.com>,
arnd@arndb.de, robh+dt@kernel.org, Marek Vasut <marex@denx.de>,
jagan@amarulasolutions.com,
Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>,
Marcin Sloniewski <marcin.sloniewski@gmail.com>
Cc: linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org,
linux-stm32@st-md-mailman.stormreply.com,
linux-kernel@vger.kernel.org, Lee Jones <lee.jones@linaro.org>,
kuba@kernel.org
Subject: Re: [PATCH 12/13] ARM: dts: stm32: fix DSI port node on STM32MP15
Date: Thu, 15 Apr 2021 12:43:06 +0200 [thread overview]
Message-ID: <ececc78c-4fca-bb93-ef62-5d107501d963@pengutronix.de> (raw)
In-Reply-To: <20210415101037.1465-13-alexandre.torgue@foss.st.com>
Hi,
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.
Thanks,
Ahmad
>
> Signed-off-by: Alexandre Torgue <alexandre.torgue@foss.st.com>
>
> diff --git a/arch/arm/boot/dts/stm32mp157.dtsi b/arch/arm/boot/dts/stm32mp157.dtsi
> index 54e73ccea446..c355fcf26ec3 100644
> --- a/arch/arm/boot/dts/stm32mp157.dtsi
> +++ b/arch/arm/boot/dts/stm32mp157.dtsi
> @@ -24,8 +24,6 @@
> clock-names = "pclk", "ref", "px_clk";
> resets = <&rcc DSI_R>;
> reset-names = "apb";
> - #address-cells = <1>;
> - #size-cells = <0>;
> status = "disabled";
>
> ports {
> diff --git a/arch/arm/boot/dts/stm32mp157c-dk2.dts b/arch/arm/boot/dts/stm32mp157c-dk2.dts
> index 19ef475a48fc..763dde1dbbaf 100644
> --- a/arch/arm/boot/dts/stm32mp157c-dk2.dts
> +++ b/arch/arm/boot/dts/stm32mp157c-dk2.dts
> @@ -36,6 +36,8 @@
> &dsi {
> status = "okay";
> phy-dsi-supply = <®18>;
> + #address-cells = <1>;
> + #size-cells = <0>;
>
> ports {
> port@0 {
> diff --git a/arch/arm/boot/dts/stm32mp157c-ev1.dts b/arch/arm/boot/dts/stm32mp157c-ev1.dts
> index 6fe5b0fee7c4..4625bb58cc6d 100644
> --- a/arch/arm/boot/dts/stm32mp157c-ev1.dts
> +++ b/arch/arm/boot/dts/stm32mp157c-ev1.dts
> @@ -102,6 +102,8 @@
> &dsi {
> phy-dsi-supply = <®18>;
> status = "okay";
> + #address-cells = <1>;
> + #size-cells = <0>;
>
> ports {
> port@0 {
>
--
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next prev parent reply other threads:[~2021-04-15 10:43 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 [this message]
2021-04-15 12:23 ` Alexandre TORGUE
2021-04-19 13:57 ` Arnd Bergmann
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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