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wifi: rtw89: regd: judge UNII-4 according to BIOS and chip
For realtek regulatory, there are following two kinds of configurations to determine whether to allow UNII-4 band, i.e. 5.9GHz channels. 1. default setting according to whether chip support it or not 2. evaluate realtek ACPI DSM with RTW89_ACPI_DSM_FUNC_59G_EN (func. 6) If (1) is false, we won't try (2) and just disallow UNII-4. Otherwise, if (2) is not supported or returns a non-specific value, we follow the default setting either. Besides, this commit aims to add decision logic in rtw89 regulatory. Actually, driver doesn't register UNII-4 yet. That will be handled by another commit. Signed-off-by: Zong-Zhe Yang <kevin_yang@realtek.com> Signed-off-by: Ping-Ke Shih <pkshih@realtek.com> Signed-off-by: Kalle Valo <kvalo@kernel.org> Link: https://lore.kernel.org/r/20230508081211.38760-3-pkshih@realtek.com
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Zong-Zhe Yang
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Kalle Valo
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May 11, 2023
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