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Message-ID: <20241213060229.1191037-1-shiyongbang@huawei.com>
Date: Fri, 13 Dec 2024 14:02:24 +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 v8 drm-dp 0/5] 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:
v7 -> v8:
- adding DP_AUX_NATIVE_WRITE case in switch statement in hibmc_dp_aux_parse_xfer().
- adding pci_set_master() in hibmc_pci_probe().
v7:https://lore.kernel.org/all/20241209144840.1933265-1-shiyongbang@huawei.com/
v6 -> v7:
- deleteing unset fields in struct hibmc_link_cap, suggested by Dmitry Baryshkov.
- using macro instead of constants in hibmc_dp_link_training_configure(), suggested by Dmitry Baryshkov.
- lowercasing hex, suggested by Dmitry Baryshkov.
v6:https://lore.kernel.org/all/20241202131322.1847078-1-shiyongbang@huawei.com/
v5 -> v6:
- adding do{} while(0) in macro defination function, suggested by Dmitry Baryshkov.
- using drm_dbg_dp() to print debug info instead of drm_info(), suggested by Dmitry Baryshkov.
- adding code comments in hibmc_dp_set_sst(), suggested by Dmitry Baryshkov.
- adding hpd and get_edid comments in the beginning of patch, suggested by Dmitry Baryshkov.
v5:https://lore.kernel.org/all/20241118142805.3326443-1-shiyongbang@huawei.com/
v4 -> v5:
- fixing build errors reported by kernel test robot <lkp@...el.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202411131438.RZWYrWTE-lkp@intel.com/
v4:https://lore.kernel.org/all/20241112132348.2631150-1-shiyongbang@huawei.com/
v3 -> v4:
- retun error codes in result incorrect branch, suggested by Dmitry Baryshkov.
- replacing all ret= with returns, suggested by Dmitry Baryshkov.
- moving the comment below the judgment statement, suggested by Dmitry Baryshkov.
- moving definations to the source file and clearing headers, suggested by Dmitry Baryshkov.
- reanaming dp_prefix to hibmc_dp_prefix, suggested by Dmitry Baryshkov.
- changing hibmc_dp_reg_write_field to static inline and lock, suggested by Dmitry Baryshkov.
- moving some structs to later patch, suggested by Dmitry Baryshkov.
- optimizing hibmc_dp_link_get_adjust_train() to delete for loop, suggested by Dmitry Baryshkov.
- changing ELNRNG to EIO error code, suggested by Dmitry Baryshkov.
- deleting meaningless macro, suggested by Dmitry Baryshkov.
- fixing build errors reported by kernel test robot <lkp@...el.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202411041559.WIfxRN6n-lkp@intel.com/
- changed the type of train_set to array, suggested by Dmitry Baryshkov.
- using actual link rate instead of magic num, suggested by Dmitry Baryshkov.
- deleting hibmc_dp_hw_uninit(), suggested by Dmitry Baryshkov.
- separating hibmc_vdac and hibmc_dp changes into separate patche, suggested by Dmitry Baryshkov.
- static int hibmc_dp_prepare(), suggested by Dmitry Baryshkov.
v3:https://lore.kernel.org/all/20241101105028.2177274-1-shiyongbang@huawei.com/
v2 -> v3:
- put the macro definations in latter patch where they are actually used, suggested by Dmitry Baryshkov.
- rename some macro definations to make them sensible, suggested by Dmitry Baryshkov.
- using FIELD_PREP and FIELD_GET, suggested by Dmitry Baryshkov.
- using DP_DPCD_REV_foo, suggested by Dmitry Baryshkov.
- using switchcase in dp_link_reduce_lane, suggested by Dmitry Baryshkov.
- deleting dp_link_pattern2dpcd function and using macros directly, suggested by Dmitry Baryshkov.
- deleting EFAULT error codes, suggested by Dmitry Baryshkov.
- fix build errors reported by kernel test robot <lkp@...el.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202410250305.UHKDhtxy-lkp@intel.com/
Closes: https://lore.kernel.org/oe-kbuild-all/202410250931.UDQ9s66H-lkp@intel.com/
Closes: https://lore.kernel.org/oe-kbuild-all/202410251136.1m7BlR68-lkp@intel.com/
v2:https://lore.kernel.org/all/20241022124148.1952761-1-shiyongbang@huawei.com/
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 (5):
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: refactored struct hibmc_drm_private
drm/hisilicon/hibmc: add dp module in hibmc
drivers/gpu/drm/hisilicon/hibmc/Makefile | 3 +-
drivers/gpu/drm/hisilicon/hibmc/dp/dp_aux.c | 164 +++++++++
drivers/gpu/drm/hisilicon/hibmc/dp/dp_comm.h | 63 ++++
.../gpu/drm/hisilicon/hibmc/dp/dp_config.h | 19 +
drivers/gpu/drm/hisilicon/hibmc/dp/dp_hw.c | 220 ++++++++++++
drivers/gpu/drm/hisilicon/hibmc/dp/dp_hw.h | 28 ++
drivers/gpu/drm/hisilicon/hibmc/dp/dp_link.c | 332 ++++++++++++++++++
drivers/gpu/drm/hisilicon/hibmc/dp/dp_reg.h | 76 ++++
.../gpu/drm/hisilicon/hibmc/hibmc_drm_dp.c | 118 +++++++
.../gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c | 14 +
.../gpu/drm/hisilicon/hibmc/hibmc_drm_drv.h | 19 +-
.../gpu/drm/hisilicon/hibmc/hibmc_drm_i2c.c | 41 ++-
.../gpu/drm/hisilicon/hibmc/hibmc_drm_vdac.c | 20 +-
13 files changed, 1078 insertions(+), 39 deletions(-)
create mode 100644 drivers/gpu/drm/hisilicon/hibmc/dp/dp_aux.c
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_reg.h
create mode 100644 drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_dp.c
--
2.33.0
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