drm/hisilicon/hibmc: add dp mode valid check

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[ Upstream commit 607805abfb ]

If DP is connected, check the DP BW in mode_valid_ctx() to ensure
that DP's link rate supports high-resolution data transmission.

Fixes: 0ab6ea261c ("drm/hisilicon/hibmc: add dp module in hibmc")
Signed-off-by: Baihan Li <libaihan@huawei.com>
Signed-off-by: Yongbang Shi <shiyongbang@huawei.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Reviewed-by: Tao Tian <tiantao6@hisilicon.com>
Link: https://patch.msgid.link/20251210023759.3944834-3-shiyongbang@huawei.com
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

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Baihan Li 2025-12-10 10:37:57 +08:00 • committed by Greg Kroah-Hartman

parent bc950899ef

commit 84359ed3c5

4 changed files with 33 additions and 0 deletions

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2

drivers/gpu/drm/hisilicon/hibmc/dp/dp_config.h

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10

drivers/gpu/drm/hisilicon/hibmc/dp/dp_hw.c

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2

drivers/gpu/drm/hisilicon/hibmc/dp/dp_hw.h

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drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_dp.c

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