[PATCH v7 0/7] Add DRM driver for Hisilicon Hibmc

[Sean Paul]

On Wed, Nov 16, 2016 at 8:43 AM, Rongrong Zou <zourongrong at gmail.com> wrote:
> This patch set adds a new drm driver for Hisilicon Hibmc. Hibmc is a
> BMC SoC with a display controller intergrated, usually it is used on
> server for Out-of-band management purpose. In this patch set, we just
> support basic function for Hibmc display subsystem. Hibmc display
> subsystem is connected to host CPU by PCIe as blow:
>
> +----------+       +----------+
> |          | PCIe  |  Hibmc   |
> |host CPU( |<----->| display  |
> |arm64,x86)|       |subsystem |
> +----------+       +----------+
>
> Hardware Detail for Hibmc display subsystem
> -----------
>
>   The display subsystem of Hibmc is show as bellow:
>   +----+      +----+      +----+     +--------+
>   |    |      |    |      |    |     |        |
>   | FB |----->| DE |----->|VDAC|---->|external|
>   |    |      |    |      |    |     | VGA    |
>   +----+      +----+      +----+     +--------+
>
>   -DE(Display Engine) is the display controller.
>   -VDAC(Video Digital-to-Analog converter) converts the RGB diaital data
>   stream from DE to VGA analog signals.
>

For the whole series/driver:

Acked-by: Sean Paul <seanpaul at chromium.org>



> Change History
> ------------
> Changes in v7:
>   -remove hibmc_drm_power.c/hibmc_drm_power.h, move the functions to
>    hibmc_drm_drv.c.
>   -remove hibmc_drm_de.h and move the struct defined in head file to
>    hibmc_drm_de.c.
>   -plane is initialized inside crtc, not in hibmc_kms_init().
>   -connector is initialized inside encoder, not in hibmc_kms_init().
>   -remove plane/crtc/encoder/connector from hibmc_drm_private struct.
>   -call drm_atomic_helper_suspend/resume in hibmc_pm_suspend/resume.
>   -remove these empty stubs because caller will do NULL check.
>     hibmc_plane_atomic_disable
>     hibmc_crtc_atomic_check
>     hibmc_encoder_disable
>     hibmc_encoder_enable
>     hibmc_encoder_atomic_check
>   -clean up in all error paths of creating driver-private framebuffer.
>
> Changes in v6:
>   -remove the embedded framebuffer and use a pointer of hibmc_framebuffer
>    instead.
>   -remove the deprecated drm_framebuffer_unregister_private(),
>    drm_framebuffer_unreference() will be called in hibmc_fbdev_destroy().
>   -uninstall irq in hibmc_unload().
>
> Changes in v5:
>   -rebase on v4.9-rc2.
>   -replace drm_fb_helper_set_suspend with drm_fb_helper_set_suspend_unlocked.
>    and remove redundant console_lock and console_unlock.
>
> Changes in v4:
>   -remove unused include files, and include header file when it is needed.
>   -remove unused FLAG in Kconfig: DRM_GEM_CMA_HELPER/DRM_KMS_CMA_HELPER.
>   -remove drm_helper_disable_unused_functions, since we use DRIVER_ATOMIC.
>
> Changes in v3:
>   -enable KMS, in v2, only fbdev is enabled.
>   -management video memory with ttm.
>   -add vblank interrupt.
>   -remove drm_connector_register_all() and drm_connector_unregister_all().
>   -I have a basic test with igt.
>
> Changes in v2:
>   -Remove self-defined macros for bit operations.
>   -Remove unused register.
>   -Replace those deprecated functions with new version of them.
>   -use drm_connector_register_all() to register connector after
>    drm_dev_register().
>
> The patch v2 is at
> https://lists.freedesktop.org/archives/dri-devel/2016-May/108661.html
>
> Rongrong Zou (7):
>   drm/hisilicon/hibmc: Add hisilicon hibmc drm master driver
>   drm/hisilicon/hibmc: Add video memory management
>   drm/hisilicon/hibmc: Add support for frame buffer
>   drm/hisilicon/hibmc: Add support for display engine
>   drm/hisilicon/hibmc: Add support for VDAC
>   drm/hisilicon/hibmc: Add support for vblank interrupt
>   MAINTAINERS: Update HISILICON DRM entries
>
>  MAINTAINERS                                       |   1 +
>  drivers/gpu/drm/hisilicon/Kconfig                 |   1 +
>  drivers/gpu/drm/hisilicon/Makefile                |   1 +
>  drivers/gpu/drm/hisilicon/hibmc/Kconfig           |   9 +
>  drivers/gpu/drm/hisilicon/hibmc/Makefile          |   4 +
>  drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_de.c    | 477 ++++++++++++++++++
>  drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c   | 456 ++++++++++++++++++
>  drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.h   | 114 +++++
>  drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_fbdev.c | 267 +++++++++++
>  drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_regs.h  | 196 ++++++++
>  drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_vdac.c  | 147 ++++++
>  drivers/gpu/drm/hisilicon/hibmc/hibmc_ttm.c       | 558 ++++++++++++++++++++++
>  12 files changed, 2231 insertions(+)
>  create mode 100644 drivers/gpu/drm/hisilicon/hibmc/Kconfig
>  create mode 100644 drivers/gpu/drm/hisilicon/hibmc/Makefile
>  create mode 100644 drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_de.c
>  create mode 100644 drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c
>  create mode 100644 drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.h
>  create mode 100644 drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_fbdev.c
>  create mode 100644 drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_regs.h
>  create mode 100644 drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_vdac.c
>  create mode 100644 drivers/gpu/drm/hisilicon/hibmc/hibmc_ttm.c
>
> --
> 1.9.1
>