diff mbox series

arm64: dts: mediatek: mt8395-genio-1200-evk: add u3port1 for xhci1

Message ID 20240216095751.4937-1-macpaul.lin@mediatek.com
State New
Headers
Series arm64: dts: mediatek: mt8395-genio-1200-evk: add u3port1 for xhci1 |

Commit Message

Macpaul Lin Feb. 16, 2024, 9:57 a.m. UTC 
  This patch fixes an issue where xhci1 was not functioning properly because
the state and PHY settings were incorrect.

The introduction of the 'force-mode' property in the phy-mtk-tphy driver
allows for the correct initialization of xhci1 by updating the Device Tree
settings accordingly.

The necessary fixup which added support for the 'force-mode' switch in the
phy-mtk-tphy driver.
commit 9b27303003f5 ("phy: mediatek: tphy: add support force phy mode switch")
Link: https://lore.kernel.org/r/20231211025624.28991-2-chunfeng.yun@mediatek.com

Prior to this fix, the system would exhibit the following probe failure messages
for xhci1:
  xhci-mtk 11290000.usb: supply vbus not found, using dummy regulator
  xhci-mtk 11290000.usb: uwk - reg:0x400, version:104
  xhci-mtk 11290000.usb: xHCI Host Controller
  xhci-mtk 11290000.usb: new USB bus registered, assigned bus number 5
  xhci-mtk 11290000.usb: clocks are not stable (0x1003d0f)
  xhci-mtk 11290000.usb: can't setup: -110
  xhci-mtk 11290000.usb: USB bus 5 deregistered
  xhci-mtk: probe of 11290000.usb failed with error -110

With the application of this dts fixup, the aforementioned initialization errors
are resolved and xhci1 is working.

Signed-off-by: Macpaul Lin <macpaul.lin@mediatek.com>
---
 arch/arm64/boot/dts/mediatek/mt8395-genio-1200-evk.dts | 6 ++++++
 1 file changed, 6 insertions(+)
diff mbox series

Patch

diff --git a/arch/arm64/boot/dts/mediatek/mt8395-genio-1200-evk.dts b/arch/arm64/boot/dts/mediatek/mt8395-genio-1200-evk.dts
index 7fc515a07c65..e0b9f2615c11 100644
--- a/arch/arm64/boot/dts/mediatek/mt8395-genio-1200-evk.dts
+++ b/arch/arm64/boot/dts/mediatek/mt8395-genio-1200-evk.dts
@@ -854,6 +854,10 @@ 
 
 &u3phy1 {
 	status = "okay";
+
+	u3port1: usb-phy@700 {
+		mediatek,force-mode;
+	};
 };
 
 &u3phy2 {
@@ -885,6 +889,8 @@ 
 };
 
 &xhci1 {
+	phys = <&u2port1 PHY_TYPE_USB2>,
+	       <&u3port1 PHY_TYPE_USB3>;
 	vusb33-supply = <&mt6359_vusb_ldo_reg>;
 	status = "okay";
 };