linux-kernel - [PATCH V2 drm-dp 0/4] Add dp module in hibmc driver

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Message-ID: <20241022124148.1952761-1-shiyongbang@huawei.com>
Date: Tue, 22 Oct 2024 20:41:44 +0800
From: Yongbang Shi <shiyongbang@...wei.com>
To: <xinliang.liu@...aro.org>, <tiantao6@...ilicon.com>,
	<maarten.lankhorst@...ux.intel.com>, <mripard@...nel.org>,
	<tzimmermann@...e.de>, <airlied@...il.com>, <daniel@...ll.ch>,
	<kong.kongxinwei@...ilicon.com>
CC: <liangjian010@...wei.com>, <chenjianmin@...wei.com>,
	<lidongming5@...wei.com>, <shiyongbang@...wei.com>, <libaihan@...wei.com>,
	<shenjian15@...wei.com>, <shaojijie@...wei.com>,
	<dri-devel@...ts.freedesktop.org>, <linux-kernel@...r.kernel.org>
Subject: [PATCH V2 drm-dp 0/4] Add dp module in hibmc driver

From: baihan li <libaihan@...wei.com>

Realizing the basic display function of DP cable for DP connector
displaying. Add DP module in hibmc drm driver, which is for Hisilicon
Hibmc SoC which used for Out-of-band management. Blow is the general
hardware connection, both the Hibmc and the host CPU are on the same
mother board.

+----------+       +----------+      +----- ----+      +----------------+
|          | PCIe  |  Hibmc   |      |          |      |                |
|host CPU( |<----->| display  |<---->| dp kapi  |<---->| dp aux moduel  |
|arm64,x86)|       |subsystem |      |  moduel  |<---->| dp link moduel |
+----------+       +----------+      +----------+      +----------------+
---
ChangeLog:
v1 -> v2:
  - using drm_dp_aux frame implement dp aux read and write functions, suggested by Jani Nikula.
  - using drm dp header files' dp macros instead, suggested by Andy Yan.
  - using drm_dp_* functions implement dp link training process, suggested by Jani Nikula.
  - changed some defines and functions to former patch, suggested by Dmitry Baryshkov.
  - sorting the headers including in dp_hw.h and hibmc_drm_drv.c files, suggested by Dmitry Baryshkov.
  - deleting struct dp_mode and dp_mode_cfg function, suggested by Dmitry Baryshkov.
  - modifying drm_simple_encoder_init function, suggested by Dmitry Baryshkov.
  - refactoring struct hibmc_connector, suggested by Dmitry Baryshkov.
  - withdrawing the modification in hibmc_kms_init, suggested by Dmitry Baryshkov.
  - fix build errors reported by kernel test robot <lkp@...el.com>
    Closes: https://lore.kernel.org/oe-kbuild-all/202410031735.8iRZZR6T-lkp@intel.com/
    Closes: https://lore.kernel.org/oe-kbuild-all/202410040328.VeVxM9yB-lkp@intel.com/
  v1:https://lore.kernel.org/all/20240930100610.782363-1-shiyongbang@huawei.com/
---

baihan li (4):
  drm/hisilicon/hibmc: add dp aux in hibmc drivers
  drm/hisilicon/hibmc: add dp link moduel in hibmc drivers
  drm/hisilicon/hibmc: add dp hw moduel in hibmc driver
  drm/hisilicon/hibmc: add dp module in hibmc

 drivers/gpu/drm/hisilicon/hibmc/Makefile      |   3 +-
 drivers/gpu/drm/hisilicon/hibmc/dp/dp_aux.c   | 162 +++++++++
 drivers/gpu/drm/hisilicon/hibmc/dp/dp_aux.h   |  31 ++
 drivers/gpu/drm/hisilicon/hibmc/dp/dp_comm.h  |  74 ++++
 .../gpu/drm/hisilicon/hibmc/dp/dp_config.h    |  19 +
 drivers/gpu/drm/hisilicon/hibmc/dp/dp_hw.c    | 237 ++++++++++++
 drivers/gpu/drm/hisilicon/hibmc/dp/dp_hw.h    |  31 ++
 drivers/gpu/drm/hisilicon/hibmc/dp/dp_link.c  | 344 ++++++++++++++++++
 drivers/gpu/drm/hisilicon/hibmc/dp/dp_link.h  |  25 ++
 drivers/gpu/drm/hisilicon/hibmc/dp/dp_reg.h   |  76 ++++
 .../gpu/drm/hisilicon/hibmc/hibmc_drm_dp.c    | 148 ++++++++
 .../gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c   |  16 +
 .../gpu/drm/hisilicon/hibmc/hibmc_drm_drv.h   |  21 +-
 .../gpu/drm/hisilicon/hibmc/hibmc_drm_i2c.c   |  41 +--
 .../gpu/drm/hisilicon/hibmc/hibmc_drm_vdac.c  |  20 +-
 15 files changed, 1208 insertions(+), 40 deletions(-)
 create mode 100644 drivers/gpu/drm/hisilicon/hibmc/dp/dp_aux.c
 create mode 100644 drivers/gpu/drm/hisilicon/hibmc/dp/dp_aux.h
 create mode 100644 drivers/gpu/drm/hisilicon/hibmc/dp/dp_comm.h
 create mode 100644 drivers/gpu/drm/hisilicon/hibmc/dp/dp_config.h
 create mode 100644 drivers/gpu/drm/hisilicon/hibmc/dp/dp_hw.c
 create mode 100644 drivers/gpu/drm/hisilicon/hibmc/dp/dp_hw.h
 create mode 100644 drivers/gpu/drm/hisilicon/hibmc/dp/dp_link.c
 create mode 100644 drivers/gpu/drm/hisilicon/hibmc/dp/dp_link.h
 create mode 100644 drivers/gpu/drm/hisilicon/hibmc/dp/dp_reg.h
 create mode 100644 drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_dp.c

-- 
2.33.0