[PATCH drm-dp 1/4] drm/hisilicon/hibmc: add dp aux in hibmc drivers

[s00452708]

> Hi Baihan，
>
> At 2024-10-01 15:26:23, "shiyongbang"<shiyongbang at huawei.com> wrote:
>> From: baihan li<libaihan at huawei.com>
>>
>> Add dp aux read/write functions. They are basic functions
>> and will be used later.
>>
>> Signed-off-by: baihan li<libaihan at huawei.com>
>> ---
>> drivers/gpu/drm/hisilicon/hibmc/Makefile     |   3 +-
>> drivers/gpu/drm/hisilicon/hibmc/dp/dp_aux.c  | 227 +++++++++++++++++++
>> drivers/gpu/drm/hisilicon/hibmc/dp/dp_aux.h  |  80 +++++++
>> drivers/gpu/drm/hisilicon/hibmc/dp/dp_comm.h |  88 +++++++
>> drivers/gpu/drm/hisilicon/hibmc/dp/dp_reg.h  |  76 +++++++
>> 5 files changed, 473 insertions(+), 1 deletion(-)
>> 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_reg.h
>>
>> diff --git a/drivers/gpu/drm/hisilicon/hibmc/Makefile b/drivers/gpu/drm/hisilicon/hibmc/Makefile
>> index d25c75e60d3d..8770ec6dfffd 100644
>> --- a/drivers/gpu/drm/hisilicon/hibmc/Makefile
>> +++ b/drivers/gpu/drm/hisilicon/hibmc/Makefile
>> @@ -1,4 +1,5 @@
>> # SPDX-License-Identifier: GPL-2.0-only
>> -hibmc-drm-y := hibmc_drm_drv.o hibmc_drm_de.o hibmc_drm_vdac.o hibmc_drm_i2c.o
>> +hibmc-drm-y := hibmc_drm_drv.o hibmc_drm_de.o hibmc_drm_vdac.o hibmc_drm_i2c.o \
>> +	       dp/dp_aux.o
>> +
>> +#define DPCD_LINK_BW_SET		0x0100
>> +#define DPCD_LANE_COUNT_SET		0x0101
>> +#define DPCD_TRAINING_PATTERN_SET	0x0102
>> +#define DPCD_TRAINING_LANE0_SET		0x0103
>> +#define DPCD_DOWNSPREAD_CTRL		0x0107
>> +#define DPCD_LANE0_1_STATUS		0x0202
>> +#define DPCD_ADJUST_REQUEST_LANE0_1	0x0206
> It seems that all of these have been defined in this header file.
>   include/drm/display/drm_dp.h：
> DP_LINK_BW_SET
> DP_LANE_COUNT_SET

   Ok, I will use general defination ininclude/drm/display/drm_dp.h. Thanks. Baihan Li.
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