From: Nícolas F. R. A. Prado Date: Wed, 6 Nov 2024 21:01:45 +0000 (-0500) Subject: arm64: dts: mediatek: mt8186: Move wakeup to MTU3 to get working suspend X-Git-Tag: v6.14-rc1~103^2~15^2~69 X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=253b4e96f5783fddede1b82274a7b4e0aa57d761;p=thirdparty%2Flinux.git arm64: dts: mediatek: mt8186: Move wakeup to MTU3 to get working suspend The current DT has the wakeup-source and mediatek,syscon-wakeup properties in the XHCI nodes, which configures USB wakeup after powering down the XHCI hardware block. However, since the XHCI controller is behind an MTU3 (USB3 DRD controller), the MTU3 only gets powered down after USB wakeup has been configured, causing the system to detect a wakeup, and results in broken suspend support as the system resumes immediately. Move the wakeup properties to the MTU3 nodes so that USB wakeup is only enabled after the MTU3 has powered down. With this change in place, it is possible to suspend and resume, and also to wakeup through USB, as tested on the Google Steelix (Lenovo 300e Yoga Chromebook Gen 4). Fixes: f6c3e61c5486 ("arm64: dts: mediatek: mt8186: Add MTU3 nodes") Reported-by: Wojciech Macek Suggested-by: AngeloGioacchino Del Regno Signed-off-by: Nícolas F. R. A. Prado Reviewed-by: AngeloGioacchino Del Regno Link: https://lore.kernel.org/r/20241106-mt8186-suspend-with-usb-wakeup-v1-1-07734a4c8236@collabora.com Signed-off-by: AngeloGioacchino Del Regno --- diff --git a/arch/arm64/boot/dts/mediatek/mt8186.dtsi b/arch/arm64/boot/dts/mediatek/mt8186.dtsi index d3c3c2a40adcd..b91f88ffae0e8 100644 --- a/arch/arm64/boot/dts/mediatek/mt8186.dtsi +++ b/arch/arm64/boot/dts/mediatek/mt8186.dtsi @@ -1577,6 +1577,8 @@ #address-cells = <2>; #size-cells = <2>; ranges; + wakeup-source; + mediatek,syscon-wakeup = <&pericfg 0x420 2>; status = "disabled"; usb_host0: usb@11200000 { @@ -1590,8 +1592,6 @@ <&infracfg_ao CLK_INFRA_AO_SSUSB_TOP_XHCI>; clock-names = "sys_ck", "ref_ck", "mcu_ck", "dma_ck", "xhci_ck"; interrupts = ; - mediatek,syscon-wakeup = <&pericfg 0x420 2>; - wakeup-source; status = "disabled"; }; }; @@ -1643,6 +1643,8 @@ #address-cells = <2>; #size-cells = <2>; ranges; + wakeup-source; + mediatek,syscon-wakeup = <&pericfg 0x424 2>; status = "disabled"; usb_host1: usb@11280000 { @@ -1656,8 +1658,6 @@ <&infracfg_ao CLK_INFRA_AO_SSUSB_TOP_P1_XHCI>; clock-names = "sys_ck", "ref_ck", "mcu_ck", "dma_ck","xhci_ck"; interrupts = ; - mediatek,syscon-wakeup = <&pericfg 0x424 2>; - wakeup-source; status = "disabled"; }; };