From: Daniel Vetter <daniel@ffwll.ch>
To: "Noralf Trønnes" <noralf@tronnes.org>
Cc: thomas.petazzoni@free-electrons.com, dri-devel@lists.freedesktop.org
Subject: Re: [RFC v2 0/8] drm: Add support for tiny LCD displays
Date: Wed, 13 Apr 2016 13:11:46 +0200 [thread overview]
Message-ID: <20160413111146.GA2510@phenom.ffwll.local> (raw)
In-Reply-To: <1460135110-24121-1-git-send-email-noralf@tronnes.org>
On Fri, Apr 08, 2016 at 07:05:02PM +0200, Noralf Trønnes wrote:
> This is an attempt at providing a DRM version of drivers/staging/fbtft.
>
> I'm sending this early before cleaning up the code hoping to get some
> feedback in case there are better ways to structure this.
>
> The tinydrm module provides a very simplified view of DRM for displays that
> has onboard video memory and is connected through a slow bus like SPI/I2C.
> A driver using tinydrm has to provide a function that will be called from
> the dirtyfb ioctl (or fbdev deferred io) and optional drm_panel functions
> which can be used to set up the display controller and control backlight.
>
> Display controllers that have a similar register interface as the MIPI DBI/DCS
> controllers can use the lcdreg module for register access.
I like this a lot. For the panel stuff itself I think it'd be good to have
comments from Thierry Redding too. Otherwise I'd say let's polish the def
io and simple kms stuff and start get that merged meanwhile.
-Daniel
>
> Changes since RFC v1:
> - Add fb_deferred_io support to drm_fb_helper and drm_fb_cma_helper,
> and use drm_fb_cma_helper instead.
> - Move display pipeline code to drm_simple_kms_helper.
> - Don't use (struct drm_driver *)->load().
> - Make tinydrm more like a library, exporting the internals.
> - Move the struct drm_driver definition from the tinydrm module to the
> driver using a helper macro: TINYDRM_DRM_DRIVER.
> - Remove dirtyfb() async code.
> - Added support for partial display updates.
>
> Noralf Trønnes (8):
> drm/fb-helper: Add fb_deferred_io support
> drm/fb-cma-helper: Add fb_deferred_io support
> drm: Add helper for simple kms drivers
> drm: Add DRM support for tiny LCD displays
> drm/tinydrm: Add lcd register abstraction
> drm/tinydrm/lcdreg: Add SPI support
> drm/tinydrm: Add mipi-dbi support
> drm/tinydrm: Add support for several Adafruit TFT displays
>
> drivers/gpu/drm/Kconfig | 9 +
> drivers/gpu/drm/Makefile | 2 +
> drivers/gpu/drm/drm_fb_cma_helper.c | 149 ++++-
> drivers/gpu/drm/drm_fb_helper.c | 189 +++++-
> drivers/gpu/drm/drm_simple_kms_helper.c | 262 ++++++++
> drivers/gpu/drm/tinydrm/Kconfig | 25 +
> drivers/gpu/drm/tinydrm/Makefile | 8 +
> drivers/gpu/drm/tinydrm/adafruit-tft.c | 257 ++++++++
> drivers/gpu/drm/tinydrm/core/Makefile | 6 +
> drivers/gpu/drm/tinydrm/core/tinydrm-core.c | 155 +++++
> .../gpu/drm/tinydrm/core/tinydrm-display-pipe.c | 82 +++
> drivers/gpu/drm/tinydrm/core/tinydrm-fbdev.c | 94 +++
> drivers/gpu/drm/tinydrm/core/tinydrm-framebuffer.c | 99 +++
> drivers/gpu/drm/tinydrm/core/tinydrm-helpers.c | 95 +++
> drivers/gpu/drm/tinydrm/lcdreg/Kconfig | 8 +
> drivers/gpu/drm/tinydrm/lcdreg/Makefile | 5 +
> drivers/gpu/drm/tinydrm/lcdreg/internal.h | 8 +
> drivers/gpu/drm/tinydrm/lcdreg/lcdreg-core.c | 190 ++++++
> drivers/gpu/drm/tinydrm/lcdreg/lcdreg-debugfs.c | 281 ++++++++
> drivers/gpu/drm/tinydrm/lcdreg/lcdreg-spi.c | 720 +++++++++++++++++++++
> drivers/gpu/drm/tinydrm/mipi-dbi.c | 253 ++++++++
> include/drm/drm_fb_cma_helper.h | 14 +
> include/drm/drm_fb_helper.h | 15 +
> include/drm/drm_simple_kms_helper.h | 44 ++
> include/drm/tinydrm/ili9340.h | 47 ++
> include/drm/tinydrm/lcdreg-spi.h | 63 ++
> include/drm/tinydrm/lcdreg.h | 126 ++++
> include/drm/tinydrm/mipi-dbi.h | 24 +
> include/drm/tinydrm/tinydrm.h | 143 ++++
> 29 files changed, 3360 insertions(+), 13 deletions(-)
> create mode 100644 drivers/gpu/drm/drm_simple_kms_helper.c
> create mode 100644 drivers/gpu/drm/tinydrm/Kconfig
> create mode 100644 drivers/gpu/drm/tinydrm/Makefile
> create mode 100644 drivers/gpu/drm/tinydrm/adafruit-tft.c
> create mode 100644 drivers/gpu/drm/tinydrm/core/Makefile
> create mode 100644 drivers/gpu/drm/tinydrm/core/tinydrm-core.c
> create mode 100644 drivers/gpu/drm/tinydrm/core/tinydrm-display-pipe.c
> create mode 100644 drivers/gpu/drm/tinydrm/core/tinydrm-fbdev.c
> create mode 100644 drivers/gpu/drm/tinydrm/core/tinydrm-framebuffer.c
> create mode 100644 drivers/gpu/drm/tinydrm/core/tinydrm-helpers.c
> create mode 100644 drivers/gpu/drm/tinydrm/lcdreg/Kconfig
> create mode 100644 drivers/gpu/drm/tinydrm/lcdreg/Makefile
> create mode 100644 drivers/gpu/drm/tinydrm/lcdreg/internal.h
> create mode 100644 drivers/gpu/drm/tinydrm/lcdreg/lcdreg-core.c
> create mode 100644 drivers/gpu/drm/tinydrm/lcdreg/lcdreg-debugfs.c
> create mode 100644 drivers/gpu/drm/tinydrm/lcdreg/lcdreg-spi.c
> create mode 100644 drivers/gpu/drm/tinydrm/mipi-dbi.c
> create mode 100644 include/drm/drm_simple_kms_helper.h
> create mode 100644 include/drm/tinydrm/ili9340.h
> create mode 100644 include/drm/tinydrm/lcdreg-spi.h
> create mode 100644 include/drm/tinydrm/lcdreg.h
> create mode 100644 include/drm/tinydrm/mipi-dbi.h
> create mode 100644 include/drm/tinydrm/tinydrm.h
>
> --
> 2.2.2
>
> _______________________________________________
> dri-devel mailing list
> dri-devel@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/dri-devel
--
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
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prev parent reply other threads:[~2016-04-13 11:11 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-04-08 17:05 [RFC v2 0/8] drm: Add support for tiny LCD displays Noralf Trønnes
2016-04-08 17:05 ` [RFC v2 1/8] drm/fb-helper: Add fb_deferred_io support Noralf Trønnes
2016-04-13 10:57 ` Daniel Vetter
2016-04-13 11:09 ` Daniel Vetter
2016-04-18 15:15 ` Noralf Trønnes
2016-04-20 11:12 ` Daniel Vetter
2016-04-20 15:22 ` Noralf Trønnes
2016-04-20 22:29 ` Dave Airlie
2016-04-21 6:53 ` Daniel Vetter
2016-04-08 17:05 ` [RFC v2 2/8] drm/fb-cma-helper: " Noralf Trønnes
2016-04-13 11:19 ` Daniel Vetter
2016-04-08 17:05 ` [RFC v2 3/8] drm: Add helper for simple kms drivers Noralf Trønnes
2016-04-13 11:05 ` Daniel Vetter
2016-05-02 15:55 ` Noralf Trønnes
2016-05-02 20:20 ` Daniel Vetter
2016-04-08 17:05 ` [RFC v2 4/8] drm: Add DRM support for tiny LCD displays Noralf Trønnes
2016-04-08 17:05 ` [RFC v2 5/8] drm/tinydrm: Add lcd register abstraction Noralf Trønnes
2016-04-08 17:05 ` [RFC v2 6/8] drm/tinydrm/lcdreg: Add SPI support Noralf Trønnes
2016-04-08 17:05 ` [RFC v2 7/8] drm/tinydrm: Add mipi-dbi support Noralf Trønnes
2016-04-08 17:05 ` [RFC v2 8/8] drm/tinydrm: Add support for several Adafruit TFT displays Noralf Trønnes
2016-04-13 11:11 ` Daniel Vetter [this message]
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