All of lore.kernel.org
 help / color / mirror / Atom feed
* [PATCH 0/8] drm: mxsfb: Allow overriding bus width
@ 2020-08-13  1:29 ` Laurent Pinchart
  0 siblings, 0 replies; 93+ messages in thread
From: Laurent Pinchart @ 2020-08-13  1:29 UTC (permalink / raw)
  To: dri-devel
  Cc: devicetree, Marek Vasut, Stefan Agner, Rob Herring,
	Pengutronix Kernel Team, linux-arm-kernel, Guido Günther

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


^ permalink raw reply	[flat|nested] 93+ messages in thread

end of thread, other threads:[~2020-10-07  1:14 UTC | newest]

Thread overview: 93+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2020-08-13  1:29 [PATCH 0/8] drm: mxsfb: Allow overriding bus width Laurent Pinchart
2020-08-13  1:29 ` Laurent Pinchart
2020-08-13  1:29 ` Laurent Pinchart
2020-08-13  1:29 ` [PATCH 1/8] dt-bindings: display: mxsfb: Convert binding to YAML Laurent Pinchart
2020-08-13  1:29   ` Laurent Pinchart
2020-08-13  1:29   ` Laurent Pinchart
2020-08-16  6:22   ` Sam Ravnborg
2020-08-16  6:22     ` Sam Ravnborg
2020-08-16  6:22     ` Sam Ravnborg
2020-08-17  0:00     ` Laurent Pinchart
2020-08-17  0:00       ` Laurent Pinchart
2020-08-17  0:00       ` Laurent Pinchart
2020-08-24 23:59   ` Rob Herring
2020-08-24 23:59     ` Rob Herring
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
2020-08-13  1:29   ` Laurent Pinchart
2020-08-13  1:29   ` Laurent Pinchart
2020-08-16  6:39   ` Sam Ravnborg
2020-08-16  6:39     ` Sam Ravnborg
2020-08-16  6:39     ` Sam Ravnborg
2020-08-17  0:04     ` Laurent Pinchart
2020-08-17  0:04       ` Laurent Pinchart
2020-08-17  0:04       ` Laurent Pinchart
2020-08-24 23:57       ` Rob Herring
2020-08-24 23:57         ` Rob Herring
2020-08-24 23:57         ` Rob Herring
2020-08-21 14:53   ` Stefan Agner
2020-08-21 14:53     ` Stefan Agner
2020-08-21 14:53     ` Stefan Agner
2020-08-23 23:26     ` Laurent Pinchart
2020-08-23 23:26       ` Laurent Pinchart
2020-08-23 23:26       ` Laurent Pinchart
2020-08-24 14:19       ` Stefan Agner
2020-08-24 14:19         ` Stefan Agner
2020-08-24 14:19         ` Stefan Agner
2020-10-07  1:12         ` Laurent Pinchart
2020-10-07  1:12           ` Laurent Pinchart
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
2020-08-13  1:29   ` Laurent Pinchart
2020-08-13  1:29   ` Laurent Pinchart
2020-08-15 21:28   ` Guido Günther
2020-08-15 21:28     ` Guido Günther
2020-08-15 21:28     ` Guido Günther
2020-08-17  0:09     ` Laurent Pinchart
2020-08-17  0:09       ` Laurent Pinchart
2020-08-17  0:09       ` Laurent Pinchart
2020-08-16  7:25   ` Sam Ravnborg
2020-08-16  7:25     ` Sam Ravnborg
2020-08-16  7:25     ` Sam Ravnborg
2020-08-17  0:17     ` Laurent Pinchart
2020-08-17  0:17       ` Laurent Pinchart
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
2020-08-13  1:29   ` Laurent Pinchart
2020-08-13  1:29   ` Laurent Pinchart
2020-08-16  7:27   ` Sam Ravnborg
2020-08-16  7:27     ` [PATCH 4/8] dt-bindings: display: mxsfb: Rename to fsl, lcdif.yaml Sam Ravnborg
2020-08-16  7:27     ` Sam Ravnborg
2020-08-21 14:55   ` [PATCH 4/8] dt-bindings: display: mxsfb: Rename to fsl,lcdif.yaml Stefan Agner
2020-08-21 14:55     ` [PATCH 4/8] dt-bindings: display: mxsfb: Rename to fsl, lcdif.yaml Stefan Agner
2020-08-21 14:55     ` Stefan Agner
2020-08-23 23:27     ` [PATCH 4/8] dt-bindings: display: mxsfb: Rename to fsl,lcdif.yaml Laurent Pinchart
2020-08-23 23:27       ` [PATCH 4/8] dt-bindings: display: mxsfb: Rename to fsl, lcdif.yaml Laurent Pinchart
2020-08-23 23:27       ` Laurent Pinchart
2020-08-13  1:29 ` [PATCH 5/8] ARM: dts: imx: Fix LCDIF compatible strings Laurent Pinchart
2020-08-13  1:29   ` Laurent Pinchart
2020-08-13  1:29   ` Laurent Pinchart
2020-08-16  7:28   ` Sam Ravnborg
2020-08-16  7:28     ` Sam Ravnborg
2020-08-16  7:28     ` Sam Ravnborg
2020-08-13  1:29 ` [PATCH 6/8] arm64: dts: imx8mq: " Laurent Pinchart
2020-08-13  1:29   ` Laurent Pinchart
2020-08-13  1:29   ` Laurent Pinchart
2020-08-16  7:28   ` Sam Ravnborg
2020-08-16  7:28     ` Sam Ravnborg
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
2020-08-13  1:29   ` Laurent Pinchart
2020-08-13  1:29   ` Laurent Pinchart
2020-08-16  7:28   ` Sam Ravnborg
2020-08-16  7:28     ` Sam Ravnborg
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
2020-08-13  1:29   ` Laurent Pinchart
2020-08-13  1:29   ` Laurent Pinchart
2020-08-16  7:46   ` Sam Ravnborg
2020-08-16  7:46     ` Sam Ravnborg
2020-08-16  7:46     ` Sam Ravnborg
2020-08-17  0:29     ` Laurent Pinchart
2020-08-17  0:29       ` Laurent Pinchart
2020-08-17  0:29       ` Laurent Pinchart

This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.