linux-kernel - Re: [PATCH v6 drm-dp 3/5] drm/hisilicon/hibmc: add dp hw moduel in hibmc

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Message-ID: <q25y46kqfizmwu6os24zvd7r32cwjxrcojbous67hj5vfu7aby@dpf5gp37qeq2>
Date: Fri, 6 Dec 2024 01:27:09 +0200
From: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
To: Yongbang Shi <shiyongbang@...wei.com>
Cc: 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, liangjian010@...wei.com, 
	chenjianmin@...wei.com, lidongming5@...wei.com, libaihan@...wei.com, 
	shenjian15@...wei.com, shaojijie@...wei.com, dri-devel@...ts.freedesktop.org, 
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v6 drm-dp 3/5] drm/hisilicon/hibmc: add dp hw moduel in
 hibmc

On Mon, Dec 02, 2024 at 09:13:20PM +0800, Yongbang Shi wrote:
> From: baihan li <libaihan@...wei.com>
> 
> Build a dp level that hibmc driver can enable dp by
> calling their functions.
> 
> Signed-off-by: Baihan Li <libaihan@...wei.com>
> Signed-off-by: Yongbang Shi <shiyongbang@...wei.com>
> ---
> ChangeLog:
> v5 -> v6:
>   - 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.
> v3 -> v4:
>   - 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.
> v2 -> v3:
>   - fix build errors reported by kernel test robot <lkp@...el.com>
>     Closes: https://lore.kernel.org/oe-kbuild-all/202410250931.UDQ9s66H-lkp@intel.com/
> v1 -> v2:
>   - 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.
>   - fix build errors reported by kernel test robot <lkp@...el.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/
> ---
>  drivers/gpu/drm/hisilicon/hibmc/Makefile      |   2 +-
>  .../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_reg.h   |  41 ++++
>  5 files changed, 309 insertions(+), 1 deletion(-)
>  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


I'm still not happy about the 0.9947 math, but hopefully that matches
the TRM.


Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>

-- 
With best wishes
Dmitry