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For AIC8800 (WIFI/BT chip): The AIC8800 driver must be unloaded before entering STR (Suspend to RAM); otherwise, upon waking from STR, initialization will fail.

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1.broken-cd: The default non-removable attribute fails to recognize the AIC8800, thus it is set to rely on a software card detection signal instead of hardware, always treating the card slot as if a card is present.
2.keep-power-in-suspend: The SDIO of TH1520 does not support keeping power when entering STR, and the driver of AIC8800 does not support SDIO with this function. Therefore, this node is added here to meet the driver requirements of AIC8800.
3.support_power_ctrl:The newly added device node is used to control the WL-REG-ON signal (which controls the power of AIC8800) after waking up from STR.

Change-Id: Ia33309da9f3e6bdf291f408d26909f11afd24842
This commit is contained in:
yjd01941629
2024-04-07 12:46:29 +08:00
committed by Han Gao
parent a8a3aef9b9
commit 9ffddd4172
2 changed files with 54 additions and 1 deletions
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4
arch/riscv/boot/dts/thead/th1520-lpi4a.dtsi
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@@ -274,6 +274,7 @@
pinctrl-0 = <&pinctrl_wifi_wake>;
wifi_chip_type = "rtl8723ds";
WIFI,poweren_gpio = <&pcal6408ahk_c 4 0>;
support_power_ctrl;
status = "okay";
};
@@ -992,12 +993,13 @@
pull_up;
no-sd;
no-mmc;
non-removable;
broken-cd;
io_fixed_1v8;
post-power-on-delay-ms = <50>;
wprtn_ignore;
cap-sd-highspeed;
wakeup-source;
keep-power-in-suspend;
status = "okay";
};