From: Luca Ceresoli <luca.ceresoli@bootlin.com>
To: Marek Vasut <marex@denx.de>, Stefan Agner <stefan@agner.ch>,
Maarten Lankhorst <maarten.lankhorst@linux.intel.com>,
Maxime Ripard <mripard@kernel.org>,
Thomas Zimmermann <tzimmermann@suse.de>,
David Airlie <airlied@gmail.com>,
Simona Vetter <simona@ffwll.ch>, Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>, Frank Li <Frank.Li@nxp.com>,
Sascha Hauer <s.hauer@pengutronix.de>,
Pengutronix Kernel Team <kernel@pengutronix.de>,
Fabio Estevam <festevam@gmail.com>,
Francesco Dolcini <francesco@dolcini.it>
Cc: Francesco Dolcini <francesco.dolcini@toradex.com>,
dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org, imx@lists.linux.dev,
linux-arm-kernel@lists.infradead.org,
Laurent Pinchart <Laurent.pinchart@ideasonboard.com>,
Jonas Karlman <jonas@kwiboo.se>,
Jernej Skrabec <jernej.skrabec@gmail.com>,
Andrzej Hajda <andrzej.hajda@intel.com>,
Neil Armstrong <neil.armstrong@linaro.org>,
Robert Foss <rfoss@kernel.org>
Subject: Re: (subset) [PATCH v5 0/4] drm: mxsfb: Support LCDIF interface bus width
Date: Wed, 30 Sep 2026 12:43:24 +0200 [thread overview]
Message-ID: <179076500400.452568.15346989916115503276.b4-ty@b4> (raw)
In-Reply-To: <20260917140042.118181-1-francesco@dolcini.it>
On Thu, 17 Sep 2026 16:00:35 +0200, Francesco Dolcini wrote:
> From: Francesco Dolcini <francesco.dolcini@toradex.com>
>
> The width of the physical LCDIF output bus can differ from the input bus
> format advertised by the downstream panel or bridge.
>
> Such a distinction is required when the LCDIF bus width does not match the
> width of the downstream display interface. For example, an 18-bit or
> 16-bit LCDIF bus can drive a 24-bit display by wiring the available color
> bits to the appropriate display inputs. Configuring LCDIF solely from the
> display's 24-bit format in this case selects the wrong LCD_DATABUS_WIDTH
> mode, changing the color-bit assignment on the LCD_DATA pins and resulting
> in incorrect colors.
>
> [...]
Applied, thanks!
[1/4] dt-bindings: lcdif: Add endpoint bus-width property
commit: 54d28d79d91d85090814fadc39ee050920de84e1
[2/4] drm: mxsfb: Add optional DPI output bus-width configuration
commit: aafd4205a75de54cb46458bbc70f35a0be1d7533
Best regards,
--
Luca Ceresoli, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com
next prev parent reply other threads:[~2026-09-30 10:44 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-17 14:00 [PATCH v5 0/4] drm: mxsfb: Support LCDIF interface bus width Francesco Dolcini
2026-09-17 14:00 ` [PATCH v5 1/4] dt-bindings: lcdif: Add endpoint bus-width property Francesco Dolcini
2026-09-17 14:00 ` [PATCH v5 2/4] drm: mxsfb: Add optional DPI output bus-width configuration Francesco Dolcini
2026-09-17 14:24 ` Frank Li
2026-09-17 15:31 ` Luca Ceresoli
2026-09-17 14:00 ` [PATCH v5 3/4] ARM: dts: imx6ull-colibri: Set LCDIF bus width Francesco Dolcini
2026-09-17 14:00 ` [PATCH v5 4/4] ARM: dts: imx7-colibri: " Francesco Dolcini
2026-09-28 11:40 ` [PATCH v5 0/4] drm: mxsfb: Support LCDIF interface " Francesco Dolcini
2026-09-30 10:43 ` Luca Ceresoli [this message]
2026-09-30 15:45 ` (subset) " Frank.Li
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