linux-kernel - Re: [PATCH 0/5] Add display support for stm32mp135f-dk board

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Date: Thu, 15 Feb 2024 09:15:12 +0100
From: Raphael Gallais-Pou <raphael.gallais-pou@...s.st.com>
To: Alexandre TORGUE <alexandre.torgue@...s.st.com>,
        Rob Herring
	<robh+dt@...nel.org>,
        Krzysztof Kozlowski
	<krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Maxime Coquelin <mcoquelin.stm32@...il.com>,
        Neil Armstrong
	<neil.armstrong@...aro.org>,
        Jessica Zhang <quic_jesszhan@...cinc.com>,
        Sam
 Ravnborg <sam@...nborg.org>,
        Maarten Lankhorst
	<maarten.lankhorst@...ux.intel.com>,
        Maxime Ripard <mripard@...nel.org>,
        Thomas Zimmermann <tzimmermann@...e.de>,
        David Airlie <airlied@...il.com>, Daniel Vetter <daniel@...ll.ch>
CC: <devicetree@...r.kernel.org>, <linux-stm32@...md-mailman.stormreply.com>,
        <linux-arm-kernel@...ts.infradead.org>, <linux-kernel@...r.kernel.org>,
        <dri-devel@...ts.freedesktop.org>,
        Yannick Fertre
	<yannick.fertre@...s.st.com>
Subject: Re: [PATCH 0/5] Add display support for stm32mp135f-dk board

Hi Alex

On 2/14/24 14:40, Alexandre TORGUE wrote:
> Hi Raphael
>
> On 2/5/24 10:06, Raphael Gallais-Pou wrote:
>> This serie aims to enable display support for the stm32mp135f-dk board
>>
>> Those are only patches of the device-tree since the driver support has
>> already been added [1].
>>
>> It respectivelly:
>>     - adds support for the display controller on stm32mp135
>>     - adds pinctrl for the display controller
>>     - enables panel, backlight and display controller on
>>       stm32mp135f-dk
>>
>> Finally it fixes the flags on the panel default mode in the
>> 'panel-simple' driver, allowing to override the default mode by one
>> described in the device tree, and push further the blanking limit on the
>> panel.
>>
>> [1] commit 1726cee3d053 ("drm/stm: ltdc: support of new hardware version")
>>
>> Signed-off-by: Raphael Gallais-Pou <raphael.gallais-pou@...s.st.com>
>> ---
>> Raphael Gallais-Pou (5):
>>        ARM: dts: stm32: add LTDC support for STM32MP13x SoC family
>>        ARM: dts: stm32: add LTDC pinctrl on STM32MP13x SoC family
>>        ARM: dts: stm32: enable display support on stm32mp135f-dk board
>>        drm/panel: simple: fix flags on RK043FN48H
>>        drm/panel: simple: push blanking limit on RK32FN48H
>>
>>   arch/arm/boot/dts/st/stm32mp13-pinctrl.dtsi | 57 +++++++++++++++++++++++++++++
>>   arch/arm/boot/dts/st/stm32mp135.dtsi        | 11 ++++++
>>   arch/arm/boot/dts/st/stm32mp135f-dk.dts     | 55 ++++++++++++++++++++++++++++
>>   drivers/gpu/drm/panel/panel-simple.c        |  7 ++--
>>   4 files changed, 127 insertions(+), 3 deletions(-)
>> ---
>> base-commit: 6613476e225e090cc9aad49be7fa504e290dd33d
>> change-id: 20240124-ltdc_mp13-2f86a782424c
>>
>> Best regards,
>
> I got the following errors during YAML verification:
>
> arch/arm/boot/dts/st/stm32mp135f-dk.dtb: /soc/i2c@...12000/pinctrl@21: failed
> to match any schema with compatible: ['microchip,mcp23017']
> /local/home/frq08678/STLINUX/kernel/my-kernel/stm32/arch/arm/boot/dts/st/stm32mp135f-dk.dtb:
> panel-backlight: 'default-brightness-level' does not match any of the regexes:
> 'pinctrl-[0-9]+'
>     from schema $id:
> http://devicetree.org/schemas/leds/backlight/gpio-backlight.yaml#
> /local/home/frq08678/STLINUX/kernel/my-kernel/stm32/arch/arm/boot/dts/st/stm32mp135f-dk.dtb:
> panel-rgb: data-mapping:0: 'bgr666' is not one of ['jeida-18', 'jeida-24',
> 'vesa-24']
>     from schema $id:
> http://devicetree.org/schemas/display/panel/panel-simple.yaml#
> /local/home/frq08678/STLINUX/kernel/my-kernel/stm32/arch/arm/boot/dts/st/stm32mp135f-dk.dtb:
> panel-rgb: compatible: ['rocktech,rk043fn48h', 'panel-dpi'] is too long
>     from schema $id:
> http://devicetree.org/schemas/display/panel/panel-simple.yaml#
> /local/home/frq08678/STLINUX/kernel/my-kernel/stm32/arch/arm/boot/dts/st/stm32mp135f-dk.dtb:
> panel-rgb: data-mapping: False schema does not allow ['bgr666']
>     from schema $id:
> http://devicetree.org/schemas/display/panel/panel-simple.yaml#
> /local/home/frq08678/STLINUX/kernel/my-kernel/stm32/arch/arm/boot/dts/st/stm32mp135f-dk.dtb:
> panel-rgb: 'height-mm', 'panel-timing', 'width-mm' do not match any of the
> regexes: 'pinctrl-[0-9]+'
>     from schema $id:
> http://devicetree.org/schemas/display/panel/panel-simple.yaml#
> /local/home/frq08678/STLINUX/kernel/my-kernel/stm32/arch/arm/boot/dts/st/stm32mp135f-dk.dtb:
> panel-rgb: 'data-mapping' does not match any of the regexes: 'pinctrl-[0-9]+'
>     from schema $id: http://devicetree.org/schemas/display/panel/panel-dpi.yaml#
>
> Do I miss something ?


I think I messed using a wrong  make option :

make DTBS_CHECK=y W=1 -j$(nproc) st/stm32mp135f-dk.dtb

instead of

make CHECK_DTBS=y W=1 -j$(nproc) st/stm32mp135f-dk.dtb


I'll send a fix promptly.


Thanks,

Raphaël

>
> Alex
>
>