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wifi: rtw89: debug: disable inactive power save to reduce bus overhead
This helps avoid excessive bus traffic and I/O overhead on slower HCIs (e.g., USB, SDIO) caused by frequent power state transitions. Add RTW89_DM_INACTIVE_PS to the disabled_dm bitmap via debugfs and check it in the rtw89_enter_ips path. When set, the driver skips entering inactive power save and returns immediately. Signed-off-by: Johnson Tsai <wenjie.tsai@realtek.com> Signed-off-by: Ping-Ke Shih <pkshih@realtek.com> Link: https://patch.msgid.link/20260420034051.17666-5-pkshih@realtek.com
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