linux-kernel - Re: [PATCH v3 4/4] ARM: dts: stm32: fix m4

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Date:   Tue, 16 May 2023 17:35:00 +0200
From:   Alexandre TORGUE <alexandre.torgue@...s.st.com>
To:     Arnaud Pouliquen <arnaud.pouliquen@...s.st.com>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Mathieu Poirier <mathieu.poirier@...aro.org>
CC:     <devicetree@...r.kernel.org>,
        <linux-stm32@...md-mailman.stormreply.com>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-remoteproc@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v3 4/4] ARM: dts: stm32: fix m4_rproc references to use
 SCMI

Hi Arnaud

On 5/12/23 11:39, Arnaud Pouliquen wrote:
> Fixes stm32mp15*-scmi DTS files introduced in [1]:
> This patch fixes the node which uses the MCU reset and adds the
> missing HOLD_BOOT which is also handled by the SCMI reset service.
> 
> This change cannot be applied as a fix on commit [1], the management
> of the hold boot impacts also the stm32_rproc driver.
> 
> [1] 'commit 5b7e58313a77 ("ARM: dts: stm32: Add SCMI version of STM32 boards (DK1/DK2/ED1/EV1)")'
> 
> Signed-off-by: Arnaud Pouliquen <arnaud.pouliquen@...s.st.com>
> ---

I just ran YAML validation on your DT patches and it fails. I added your 
DT patches + dt-binding one (just for the test). I got the following issue:

/arch/arm/boot/dts/stm32mp157c-ed1-scmi.dtb: m4@...00000: 
st,syscfg-holdboot: False schema does not allow [[7, 268, 1]]
	From schema: 
/local/home/frq08678/STLINUX/kernel/my-kernel/stm32/Documentation/devicetree/bindings/remoteproc/st,stm32-rproc.yaml

Do I miss another dt-binding update not present in this series ?

alex

>   arch/arm/boot/dts/stm32mp157a-dk1-scmi.dts | 6 ++++--
>   arch/arm/boot/dts/stm32mp157c-dk2-scmi.dts | 6 ++++--
>   arch/arm/boot/dts/stm32mp157c-ed1-scmi.dts | 6 ++++--
>   arch/arm/boot/dts/stm32mp157c-ev1-scmi.dts | 6 ++++--
>   4 files changed, 16 insertions(+), 8 deletions(-)
> 
> diff --git a/arch/arm/boot/dts/stm32mp157a-dk1-scmi.dts b/arch/arm/boot/dts/stm32mp157a-dk1-scmi.dts
> index e539cc80bef8..134788e64265 100644
> --- a/arch/arm/boot/dts/stm32mp157a-dk1-scmi.dts
> +++ b/arch/arm/boot/dts/stm32mp157a-dk1-scmi.dts
> @@ -55,8 +55,10 @@ &mdma1 {
>   	resets = <&scmi_reset RST_SCMI_MDMA>;
>   };
>   
> -&mlahb {
> -	resets = <&scmi_reset RST_SCMI_MCU>;
> +&m4_rproc {
> +	resets = <&scmi_reset RST_SCMI_MCU>,
> +		 <&scmi_reset RST_SCMI_MCU_HOLD_BOOT>;
> +	reset-names =  "mcu_rst", "hold_boot";
>   };
>   
>   &rcc {
> diff --git a/arch/arm/boot/dts/stm32mp157c-dk2-scmi.dts b/arch/arm/boot/dts/stm32mp157c-dk2-scmi.dts
> index 97e4f94b0a24..c42e658debfb 100644
> --- a/arch/arm/boot/dts/stm32mp157c-dk2-scmi.dts
> +++ b/arch/arm/boot/dts/stm32mp157c-dk2-scmi.dts
> @@ -61,8 +61,10 @@ &mdma1 {
>   	resets = <&scmi_reset RST_SCMI_MDMA>;
>   };
>   
> -&mlahb {
> -	resets = <&scmi_reset RST_SCMI_MCU>;
> +&m4_rproc {
> +	resets = <&scmi_reset RST_SCMI_MCU>,
> +		 <&scmi_reset RST_SCMI_MCU_HOLD_BOOT>;
> +	reset-names =  "mcu_rst", "hold_boot";
>   };
>   
>   &rcc {
> diff --git a/arch/arm/boot/dts/stm32mp157c-ed1-scmi.dts b/arch/arm/boot/dts/stm32mp157c-ed1-scmi.dts
> index 9cf0a44d2f47..7a56ff2d4185 100644
> --- a/arch/arm/boot/dts/stm32mp157c-ed1-scmi.dts
> +++ b/arch/arm/boot/dts/stm32mp157c-ed1-scmi.dts
> @@ -60,8 +60,10 @@ &mdma1 {
>   	resets = <&scmi_reset RST_SCMI_MDMA>;
>   };
>   
> -&mlahb {
> -	resets = <&scmi_reset RST_SCMI_MCU>;
> +&m4_rproc {
> +	resets = <&scmi_reset RST_SCMI_MCU>,
> +		 <&scmi_reset RST_SCMI_MCU_HOLD_BOOT>;
> +	reset-names =  "mcu_rst", "hold_boot";
>   };
>   
>   &rcc {
> diff --git a/arch/arm/boot/dts/stm32mp157c-ev1-scmi.dts b/arch/arm/boot/dts/stm32mp157c-ev1-scmi.dts
> index 3b9dd6f4ccc9..119874dd91e4 100644
> --- a/arch/arm/boot/dts/stm32mp157c-ev1-scmi.dts
> +++ b/arch/arm/boot/dts/stm32mp157c-ev1-scmi.dts
> @@ -66,8 +66,10 @@ &mdma1 {
>   	resets = <&scmi_reset RST_SCMI_MDMA>;
>   };
>   
> -&mlahb {
> -	resets = <&scmi_reset RST_SCMI_MCU>;
> +&m4_rproc {
> +	resets = <&scmi_reset RST_SCMI_MCU>,
> +		 <&scmi_reset RST_SCMI_MCU_HOLD_BOOT>;
> +	reset-names =  "mcu_rst", "hold_boot";
>   };
>   
>   &rcc {