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* [PATCH v2 0/7] drm: mxsfb: Allow overriding bus width
@ 2020-10-07  1:24 Laurent Pinchart
  2020-10-07  1:24 ` [PATCH v2 1/7] dt-bindings: display: mxsfb: Convert binding to YAML Laurent Pinchart
                   ` (7 more replies)
  0 siblings, 8 replies; 28+ messages in thread
From: Laurent Pinchart @ 2020-10-07  1:24 UTC (permalink / raw)
  To: dri-devel
  Cc: Marek Vasut, devicetree, Guido Günther, Rob Herring,
	Pengutronix Kernel Team, linux-arm-kernel

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

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^ permalink raw reply	[flat|nested] 28+ messages in thread

end of thread, other threads:[~2021-01-16 10:45 UTC | newest]

Thread overview: 28+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2020-10-07  1:24 [PATCH v2 0/7] drm: mxsfb: Allow overriding bus width Laurent Pinchart
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
2020-10-10  0:01 ` [PATCH v2 8/7] dt-bindings: display: mxsfb: Add compatible for i.MX8MM Laurent Pinchart

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