From: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
To: dri-devel@lists.freedesktop.org
Cc: "Stefan Agner" <stefan@agner.ch>, "Marek Vasut" <marex@denx.de>,
devicetree@vger.kernel.org, "Guido Günther" <agx@sigxcpu.org>,
"Rob Herring" <robh+dt@kernel.org>,
"Pengutronix Kernel Team" <kernel@pengutronix.de>,
linux-arm-kernel@lists.infradead.org
Subject: [PATCH v2 0/7] drm: mxsfb: Allow overriding bus width
Date: Wed, 7 Oct 2020 04:24:31 +0300 [thread overview]
Message-ID: <20201007012438.27970-1-laurent.pinchart@ideasonboard.com> (raw)
Hello,
This patch series adds support to the mxsfb driver for bus width
override. The need came from a hardware platform where a 18-bpp panel
had the R[5:0], G[5:0] and B[5:0] signals connected to LCD_DATA[7:2],
LCD_DATA[15:10] and LCD_DATA[23:18] instead of LCD_DATA[5:0],
LCD_DATA[11:6] and LCD_DATA[17:12]. The bus width, automatically
configured to 18 by querying the panel, is incorrect in this case, and
needs to be set to 24.
To solve this issue, a new bus-width DT property is added to the mxsfb
DT binding. Patch 1/7 first converts the binding to YAML, with a fix for
the compatible string values in 2/7. Patch 3/7 then adds the new
property.
Patches 4/7 to 5/7 then fix the DT sources to match the LCDIF bindings,
as I noticed during the conversion that the compatible strings were
badly managed (see patch 2/7 for a longer explanation). Patch 6/7 drops
an unused clock from DT sources.
Patch 7/7 finally adds support for the bus-width property to the mxsfb
driver.
Changes compared to v1 are minor and are listed in individual patches.
Laurent Pinchart (7):
dt-bindings: display: mxsfb: Convert binding to YAML
dt-bindings: display: mxsfb: Add and fix compatible strings
dt-bindings: display: mxsfb: Add a bus-width endpoint property
ARM: dts: imx: Fix LCDIF compatible strings
arm64: dts: imx8mq: Fix LCDIF compatible strings
ARM: dts: imx: Remove unneeded LCDIF disp_axi clock
drm: mxsfb: Add support for the bus-width DT property
.../bindings/display/fsl,lcdif.yaml | 136 ++++++++++++++++++
.../devicetree/bindings/display/mxsfb.txt | 87 -----------
MAINTAINERS | 2 +-
arch/arm/boot/dts/imx6sl.dtsi | 7 +-
arch/arm/boot/dts/imx6sll.dtsi | 7 +-
arch/arm/boot/dts/imx6sx.dtsi | 4 +-
arch/arm/boot/dts/imx6ul.dtsi | 7 +-
arch/arm64/boot/dts/freescale/imx8mq.dtsi | 2 +-
drivers/gpu/drm/mxsfb/mxsfb_drv.c | 26 ++++
drivers/gpu/drm/mxsfb/mxsfb_drv.h | 2 +
drivers/gpu/drm/mxsfb/mxsfb_kms.c | 8 +-
11 files changed, 183 insertions(+), 105 deletions(-)
create mode 100644 Documentation/devicetree/bindings/display/fsl,lcdif.yaml
delete mode 100644 Documentation/devicetree/bindings/display/mxsfb.txt
--
Regards,
Laurent Pinchart
next reply other threads:[~2020-10-07 1:25 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-10-07 1:24 Laurent Pinchart [this message]
2020-10-07 1:24 ` [PATCH v2 1/7] dt-bindings: display: mxsfb: Convert binding to YAML Laurent Pinchart
2020-10-07 8:32 ` Marek Vasut
2020-10-07 8:43 ` Lucas Stach
2020-10-07 8:55 ` Marek Vasut
2020-10-07 13:33 ` Laurent Pinchart
2020-10-07 14:20 ` Marek Vasut
2020-10-07 16:00 ` Rob Herring
2020-10-07 16:02 ` Rob Herring
2020-10-09 23:52 ` Laurent Pinchart
2021-01-15 7:59 ` Martin Kepplinger
2021-01-15 22:25 ` Laurent Pinchart
2021-01-16 6:41 ` Martin Kepplinger
2020-10-07 1:24 ` [PATCH v2 2/7] dt-bindings: display: mxsfb: Add and fix compatible strings Laurent Pinchart
2020-10-07 8:35 ` Marek Vasut
2020-10-07 16:01 ` Rob Herring
2020-10-07 1:24 ` [PATCH v2 3/7] dt-bindings: display: mxsfb: Add a bus-width endpoint property Laurent Pinchart
2020-10-07 8:40 ` Marek Vasut
2020-10-09 23:58 ` Laurent Pinchart
2020-10-10 8:47 ` Marek Vasut
2020-10-13 2:06 ` Laurent Pinchart
2020-10-13 11:03 ` Marek Vasut
2020-10-07 16:03 ` Rob Herring
2020-10-07 1:24 ` [PATCH v2 4/7] ARM: dts: imx: Fix LCDIF compatible strings Laurent Pinchart
2020-10-07 1:24 ` [PATCH v2 5/7] arm64: dts: imx8mq: " Laurent Pinchart
2020-10-07 1:24 ` [PATCH v2 6/7] ARM: dts: imx: Remove unneeded LCDIF disp_axi clock Laurent Pinchart
2020-10-07 1:24 ` [PATCH v2 7/7] drm: mxsfb: Add support for the bus-width DT property Laurent Pinchart
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