linux-kernel - Re: [PATCH 0/3] drm/sitronix/st7571-i2c: Add support for the ST7567 Controller

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Message-ID: <aHFy125scr-g6zn6@gmail.com>
Date: Fri, 11 Jul 2025 22:23:51 +0200
From: Marcus Folkesson <marcus.folkesson@...il.com>
To: Javier Martinez Canillas <javierm@...hat.com>
Cc: linux-kernel@...r.kernel.org, ipedrosa@...hat.com,
	Conor Dooley <conor+dt@...nel.org>,
	David Airlie <airlied@...il.com>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
	Maxime Ripard <mripard@...nel.org>, Rob Herring <robh@...nel.org>,
	Simona Vetter <simona@...ll.ch>,
	Thomas Zimmermann <tzimmermann@...e.de>, devicetree@...r.kernel.org,
	dri-devel@...ts.freedesktop.org
Subject: Re: [PATCH 0/3] drm/sitronix/st7571-i2c: Add support for the ST7567
 Controller

Hello Javier,


On Thu, Jul 10, 2025 at 12:24:32PM +0200, Javier Martinez Canillas wrote:
> This patch-series adds support for the Sitronix ST7567 Controller, which is is a
> monochrome Dot Matrix LCD Controller that has SPI, I2C and parallel interfaces.
> 
> The st7571-i2c driver only has support for I2C so displays using other transport
> interfaces are currently not supported.
> 
> The DRM_FORMAT_R1 pixel format and data commands are the same than what is used
> by the ST7571 controller, so only is needed a different callback that implements
> the expected initialization sequence for the ST7567 chip.
> 
> Patch #1 adds a Device Tree binding schema for the ST7567 Controller.
> 
> Patch #2 makes the "reset-gpios" property in the driver to be optional since that
> isn't needed for the ST7567.
> 
> Patch #3 finally extends the st7571-i2c driver to also support the ST7567 device.
> 
> 
> Javier Martinez Canillas (3):
>   dt-bindings: display: Add Sitronix ST7567 LCD Controller
>   drm/sitronix/st7571-i2c: Make the reset GPIO to be optional
>   drm/sitronix/st7571-i2c: Add support for the ST7567 Controller

For all patches in this series:

Reviewed-by: Marcus Folkesson <marcus.folkesson@...il.com>

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