From: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
To: dri-devel@lists.freedesktop.org
Cc: devicetree@vger.kernel.org, "Marek Vasut" <marex@denx.de>,
"Stefan Agner" <stefan@agner.ch>,
"Rob Herring" <robh+dt@kernel.org>,
"Pengutronix Kernel Team" <kernel@pengutronix.de>,
linux-arm-kernel@lists.infradead.org,
"Guido Günther" <agx@sigxcpu.org>
Subject: [PATCH 0/8] drm: mxsfb: Allow overriding bus width
Date: Thu, 13 Aug 2020 04:29:02 +0300 [thread overview]
Message-ID: <20200813012910.13576-1-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 1/8 first converts the binding to YAML, with a fix for
the compatible string values in 2/8. Patch 3/8 then adds the new
property, and 4/8 renames the binding file to fsl,lcdif.yaml to match
the usual naming convention. I've kept that patch last to make it easy
to drop should should mxsfb.yaml be preferred.
Patches 5/8 to 6/8 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 2/8 for a longer explanation). Patch 7/8 drops
an unused clock from DT sources.
Patch 8/8 finally adds support for the bus-width property to the mxsfb
driver.
Laurent Pinchart (8):
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
dt-bindings: display: mxsfb: Rename to fsl,lcdif.yaml
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 | 135 ++++++++++++++++++
.../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, 182 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:[~2020-08-13 1:29 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-08-13 1:29 Laurent Pinchart [this message]
2020-08-13 1:29 ` [PATCH 1/8] dt-bindings: display: mxsfb: Convert binding to YAML Laurent Pinchart
2020-08-16 6:22 ` Sam Ravnborg
2020-08-17 0:00 ` Laurent Pinchart
2020-08-24 23:59 ` Rob Herring
2020-08-13 1:29 ` [PATCH 2/8] dt-bindings: display: mxsfb: Add and fix compatible strings Laurent Pinchart
2020-08-16 6:39 ` Sam Ravnborg
2020-08-17 0:04 ` Laurent Pinchart
2020-08-24 23:57 ` Rob Herring
2020-08-21 14:53 ` Stefan Agner
2020-08-23 23:26 ` Laurent Pinchart
2020-08-24 14:19 ` Stefan Agner
2020-10-07 1:12 ` Laurent Pinchart
2020-08-13 1:29 ` [PATCH 3/8] dt-bindings: display: mxsfb: Add a bus-width endpoint property Laurent Pinchart
2020-08-15 21:28 ` Guido Günther
2020-08-17 0:09 ` Laurent Pinchart
2020-08-16 7:25 ` Sam Ravnborg
2020-08-17 0:17 ` Laurent Pinchart
2020-08-13 1:29 ` [PATCH 4/8] dt-bindings: display: mxsfb: Rename to fsl,lcdif.yaml Laurent Pinchart
2020-08-16 7:27 ` Sam Ravnborg
2020-08-21 14:55 ` Stefan Agner
2020-08-23 23:27 ` Laurent Pinchart
2020-08-13 1:29 ` [PATCH 5/8] ARM: dts: imx: Fix LCDIF compatible strings Laurent Pinchart
2020-08-16 7:28 ` Sam Ravnborg
2020-08-13 1:29 ` [PATCH 6/8] arm64: dts: imx8mq: " Laurent Pinchart
2020-08-16 7:28 ` Sam Ravnborg
2020-08-13 1:29 ` [PATCH 7/8] ARM: dts: imx: Remove unneeded LCDIF disp_axi clock Laurent Pinchart
2020-08-16 7:28 ` Sam Ravnborg
2020-08-13 1:29 ` [PATCH 8/8] drm: mxsfb: Add support for the bus-width DT property Laurent Pinchart
2020-08-16 7:46 ` Sam Ravnborg
2020-08-17 0:29 ` Laurent Pinchart
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