linux-kernel - Re: [PATCH v5 0/5] drm/solomon: Add SSD130x OLED displays SPI support

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Date:   Wed, 20 Apr 2022 19:07:02 +0200
From:   Javier Martinez Canillas <javierm@...hat.com>
To:     linux-kernel@...r.kernel.org
Cc:     dri-devel@...ts.freedesktop.org, Mark Brown <broonie@...nel.org>,
        Rob Herring <robh@...nel.org>,
        Geert Uytterhoeven <geert@...ux-m68k.org>,
        Chen-Yu Tsai <wens@...nel.org>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Neil Armstrong <narmstrong@...libre.com>,
        Chen-Yu Tsai <wens@...e.org>, Daniel Vetter <daniel@...ll.ch>,
        David Airlie <airlied@...ux.ie>,
        Geert Uytterhoeven <geert+renesas@...der.be>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Maxime Ripard <maxime@...no.tech>,
        Maxime Ripard <mripard@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        YueHaibing <yuehaibing@...wei.com>, devicetree@...r.kernel.org
Subject: Re: [PATCH v5 0/5] drm/solomon: Add SSD130x OLED displays SPI support

On 4/19/22 23:48, Javier Martinez Canillas wrote:
> Hello,
> 
> This series adds a ssd130x-spi driver that provides a 4-wire SPI transport
> support for SSD130x OLED controllers that can be accessed over a SPI bus.
> 
> The driver is quite similar to existing ssd130x-i2c driver that is used by
> I2C controllers, but there is a difference in the protocol used by SSD130x
> depending on the transport used. The details are in patch #4 description.
> 
> Patch #1 just makes the current ssd130x-i2c compatible strings in the DT
> binding to be deprecated, and add new ones that don't have an "fb-i2c".
> 
> Patch #2 extends the DT binding with the properties needed to support SPI.
> 
> Patch #3 adds the new compatible strings to the OF device ID table in the
> ssd130x-i2c DRM driver and deprecate the old ones.
> 
> Patch #4 moves the device info for the different SSD130x variants from
> the ssd130x-i2c transport driver to the ssd130x core driver.
> 
> Finally patch #5 adds the ssd130x-spi DRM driver for the OLED controllers
> that come with a 4-wire SPI interface, instead of an I2C interface.
> 
> This is a v5 that addresses the issues pointed out in v4.
> 
Pushed this series to drm-misc-next after adding Rob's Reviewed-by
tags to patch 1/5 and 2/5, since I missed that in v5. Thanks all!

-- 
Best regards,

Javier Martinez Canillas
Linux Engineering
Red Hat