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The VCCIO4 io-domain used for WiFi/BT is using 1v8 IO signal voltage. Add io-domains node with the VCCIO supplies connected on the board. Signed-off-by: Jonas Karlman <jonas@kwiboo.se> Link: https://lore.kernel.org/r/20240521211029.1236094-13-jonas@kwiboo.se Signed-off-by: Heiko Stuebner <heiko@sntech.de> [ upstream commit: 100b3bdee6035192f6d4a1847970fe004bb505fb ] (cherry picked from commit f93b224359278728f01767a4701678ada9c25570) Reviewed-by: Kever Yang <kever.yang@rock-chips.com>