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@xxxxxxxxxxxxxxxxxxxxx > https://lists.freedesktop.org/mailman/listinfo/dri-devel -- Daniel Vetter Software Engineer, Intel Corporation http://blog.ffwll.ch _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/dri-devel
