wifi: rtw89: pci: early chips only enable 36-bit DMA on specific PCI hosts

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The early chips including RTL8852A, RTL8851B, RTL8852B and RTL8852BT have
interoperability problems of 36-bit DMA with some PCI hosts. Rollback
to 32-bit DMA by default, and only enable 36-bit DMA for tested platforms.

Since all Intel platforms we have can work correctly, add the vendor ID to
white list. Otherwise, list vendor/device ID of bridge we have tested.

Fixes: 1fd4b3fe52 ("wifi: rtw89: pci: support 36-bit PCI DMA address")
Reported-by: Marcel Weißenbach <mweissenbach@ignaz.org>
Closes: https://lore.kernel.org/linux-wireless/20240918073237.Horde.VLueh0_KaiDw-9asEEcdM84@ignaz.org/T/#m07c5694df1acb173a42e1a0bab7ac22bd231a2b8
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Tested-by: Marcel Weißenbach <mweissenbach@ignaz.org>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://patch.msgid.link/20240924021633.19861-1-pkshih@realtek.com

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This commit is contained in:

Ping-Ke Shih 2024-09-24 10:16:33 +08:00 • committed by Kalle Valo

parent 52009b4193

commit aa70ff0945

1 changed files with 41 additions and 7 deletions

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drivers/net/wireless/realtek/rtw89/pci.c

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