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[PATCH v5 0/4] drm: Add support for the ARM HDLCD display controller

Started byLiviu Dudau <Liviu.Dudau@arm.com>
First post2015-12-07 13:20 +0100
Last post2015-12-07 15:10 +0100
Articles 4 — 2 participants

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  [PATCH v5 0/4] drm: Add support for the ARM HDLCD display controller Liviu Dudau <Liviu.Dudau@arm.com> - 2015-12-07 13:20 +0100
    [PATCH v5 4/4] MAINTAINERS: Add Liviu Dudau as maintainer for ARM HDLCD driver. Liviu Dudau <Liviu.Dudau@arm.com> - 2015-12-07 13:20 +0100
      Re: [PATCH v5 4/4] MAINTAINERS: Add Liviu Dudau as maintainer for ARM  HDLCD driver. Emil Velikov <emil.l.velikov@gmail.com> - 2015-12-07 14:30 +0100
        Re: [PATCH v5 4/4] MAINTAINERS: Add Liviu Dudau as maintainer for  ARM HDLCD driver. Liviu Dudau <Liviu.Dudau@arm.com> - 2015-12-07 15:10 +0100

#1285262 — [PATCH v5 0/4] drm: Add support for the ARM HDLCD display controller

FromLiviu Dudau <Liviu.Dudau@arm.com>
Date2015-12-07 13:20 +0100
Subject[PATCH v5 0/4] drm: Add support for the ARM HDLCD display controller
Message-ID<qD2VP-4lU-3@gated-at.bofh.it>
This series adds support for ARM's HDLCD display controller found in Juno
and ARM TC2 Coretile. The HDLCD outputs an RGB stream that feeds into a
single digital encoder (DVI or HDMI).

The dependencies for this patch series are now queued for the next release or
are already in the mainline.

Only the Juno functionality has been tested as the TC2 Coretile require
a working SiI9022 driver for VExpress that is not subject of this patchset.

Changelog:
v5: Queue the pending vblank events sent by userspace using a list instead of
    keeping the last event seen. Suggested by Daniel Stone <daniel@fooishbar.org>.
v4: Remove some debugging code that could return an error on a critical path
    and updated the check for valid format in hdlcd_set_pxl_fmt() to only
    WARN() if an invalid format found (unlikely case). Added the ACKs received. [1]
v3: Changed the driver to use the memory-region phandle for bespoke framebuffers. [2]
v2: Added support for atomic modeset [3]
v1: Original DRM submission [4]

[1] http://lists.freedesktop.org/archives/dri-devel/2015-December/095990.html
[2] http://lists.freedesktop.org/archives/dri-devel/2015-December/095877.html
[3] http://lists.freedesktop.org/archives/dri-devel/2015-November/094177.html
[4] http://lists.freedesktop.org/archives/dri-devel/2015-August/087685.html

Best regards,
Liviu

Liviu Dudau (4):
  drm: arm: Add DT bindings documentation for HDLCD driver.
  drm: Add support for ARM's HDLCD controller.
  arm64: Juno: Add HDLCD support to the Juno boards.
  MAINTAINERS: Add Liviu Dudau as maintainer for ARM HDLCD driver.

 .../devicetree/bindings/display/arm,hdlcd.txt      |  79 +++
 MAINTAINERS                                        |   6 +
 arch/arm64/boot/dts/arm/juno-base.dtsi             |  46 +-
 drivers/gpu/drm/Kconfig                            |   2 +
 drivers/gpu/drm/Makefile                           |   1 +
 drivers/gpu/drm/arm/Kconfig                        |  29 ++
 drivers/gpu/drm/arm/Makefile                       |   2 +
 drivers/gpu/drm/arm/hdlcd_crtc.c                   | 329 ++++++++++++
 drivers/gpu/drm/arm/hdlcd_drv.c                    | 580 +++++++++++++++++++++
 drivers/gpu/drm/arm/hdlcd_drv.h                    |  42 ++
 drivers/gpu/drm/arm/hdlcd_regs.h                   |  87 ++++
 11 files changed, 1199 insertions(+), 4 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/display/arm,hdlcd.txt
 create mode 100644 drivers/gpu/drm/arm/Kconfig
 create mode 100644 drivers/gpu/drm/arm/Makefile
 create mode 100644 drivers/gpu/drm/arm/hdlcd_crtc.c
 create mode 100644 drivers/gpu/drm/arm/hdlcd_drv.c
 create mode 100644 drivers/gpu/drm/arm/hdlcd_drv.h
 create mode 100644 drivers/gpu/drm/arm/hdlcd_regs.h

-- 
2.6.2

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#1285263 — [PATCH v5 4/4] MAINTAINERS: Add Liviu Dudau as maintainer for ARM HDLCD driver.

FromLiviu Dudau <Liviu.Dudau@arm.com>
Date2015-12-07 13:20 +0100
Subject[PATCH v5 4/4] MAINTAINERS: Add Liviu Dudau as maintainer for ARM HDLCD driver.
Message-ID<qD2VP-4lU-7@gated-at.bofh.it>
In reply to#1285262
Update MAINTAINERS file for HDLCD driver.

Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Cc: Greg KH <gregkh@linuxfoundation.org>
Cc: Joe Perches <joe@perches.com>
Cc: Jiri Slaby <jslaby@suse.com>

Signed-off-by: Liviu Dudau <Liviu.Dudau@arm.com>
---
 MAINTAINERS | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/MAINTAINERS b/MAINTAINERS
index cba790b..8a637e3 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -820,6 +820,12 @@ S:	Maintained
 F:	drivers/net/arcnet/
 F:	include/uapi/linux/if_arcnet.h
 
+ARM HDLCD DRM DRIVER
+M:	Liviu Dudau <liviu.dudau@arm.com>
+S:	Maintained
+F:	drivers/gpu/drm/arm/
+F:	Documentation/devicetree/bindings/display/arm,hdlcd.txt
+
 ARM MFM AND FLOPPY DRIVERS
 M:	Ian Molton <spyro@f2s.com>
 S:	Maintained
-- 
2.6.2

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#1285297 — Re: [PATCH v5 4/4] MAINTAINERS: Add Liviu Dudau as maintainer for ARM HDLCD driver.

FromEmil Velikov <emil.l.velikov@gmail.com>
Date2015-12-07 14:30 +0100
SubjectRe: [PATCH v5 4/4] MAINTAINERS: Add Liviu Dudau as maintainer for ARM HDLCD driver.
Message-ID<qD41z-4Zp-7@gated-at.bofh.it>
In reply to#1285263
On 7 December 2015 at 12:11, Liviu Dudau <Liviu.Dudau@arm.com> wrote:
> Update MAINTAINERS file for HDLCD driver.
>
> Cc: Andrew Morton <akpm@linux-foundation.org>
> Cc: Arnd Bergmann <arnd@arndb.de>
> Cc: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
> Cc: Greg KH <gregkh@linuxfoundation.org>
> Cc: Joe Perches <joe@perches.com>
> Cc: Jiri Slaby <jslaby@suse.com>
>
> Signed-off-by: Liviu Dudau <Liviu.Dudau@arm.com>
> ---
>  MAINTAINERS | 6 ++++++
>  1 file changed, 6 insertions(+)
>
> diff --git a/MAINTAINERS b/MAINTAINERS
> index cba790b..8a637e3 100644
> --- a/MAINTAINERS
> +++ b/MAINTAINERS
> @@ -820,6 +820,12 @@ S: Maintained
>  F:     drivers/net/arcnet/
>  F:     include/uapi/linux/if_arcnet.h
>
> +ARM HDLCD DRM DRIVER
> +M:     Liviu Dudau <liviu.dudau@arm.com>
> +S:     Maintained
You surely meant Supported, didn't you ?

Regards,
Emil
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#1285351 — Re: [PATCH v5 4/4] MAINTAINERS: Add Liviu Dudau as maintainer for ARM HDLCD driver.

FromLiviu Dudau <Liviu.Dudau@arm.com>
Date2015-12-07 15:10 +0100
SubjectRe: [PATCH v5 4/4] MAINTAINERS: Add Liviu Dudau as maintainer for ARM HDLCD driver.
Message-ID<qD4Ej-5uQ-43@gated-at.bofh.it>
In reply to#1285297
On Mon, Dec 07, 2015 at 01:25:10PM +0000, Emil Velikov wrote:
> On 7 December 2015 at 12:11, Liviu Dudau <Liviu.Dudau@arm.com> wrote:
> > Update MAINTAINERS file for HDLCD driver.
> >
> > Cc: Andrew Morton <akpm@linux-foundation.org>
> > Cc: Arnd Bergmann <arnd@arndb.de>
> > Cc: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
> > Cc: Greg KH <gregkh@linuxfoundation.org>
> > Cc: Joe Perches <joe@perches.com>
> > Cc: Jiri Slaby <jslaby@suse.com>
> >
> > Signed-off-by: Liviu Dudau <Liviu.Dudau@arm.com>
> > ---
> >  MAINTAINERS | 6 ++++++
> >  1 file changed, 6 insertions(+)
> >
> > diff --git a/MAINTAINERS b/MAINTAINERS
> > index cba790b..8a637e3 100644
> > --- a/MAINTAINERS
> > +++ b/MAINTAINERS
> > @@ -820,6 +820,12 @@ S: Maintained
> >  F:     drivers/net/arcnet/
> >  F:     include/uapi/linux/if_arcnet.h
> >
> > +ARM HDLCD DRM DRIVER
> > +M:     Liviu Dudau <liviu.dudau@arm.com>
> > +S:     Maintained
> You surely meant Supported, didn't you ?

Well .... it is a very fine line in corporate world, when a new
product comes the next year, to justify spending time (or money) on
last year's (or 5) product.

I am payed to do work now in the display drivers, so yes, is Supported.
As for the HDLCD, it could soon turn into a "legacy" device as the new
products come online having the Mali DP engine.

I'm not sure it makes a difference, but I can go with Supported for now.
Thanks for spotting it!

Best regards,
Liviu

> 
> Regards,
> Emil
> 

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