[PATCHv4 3/3] arm64: dts: meson: odroid-c2: Disable usb_otg bus to avoid power failed warning
From: Anand Moon
Date: Sat Aug 24 2019 - 14:50:07 EST
usb_otg bus needs to get initialize from the u-boot to be configured
to used as power source to SBC or usb otg port will get configured
as host device. Right now this support is missing in the u-boot and
phy driver so to avoid power failed warning, we would disable this
feature until proper fix is found.
[ 2.716048] phy phy-c0000000.phy.0: USB ID detect failed!
[ 2.720186] phy phy-c0000000.phy.0: phy poweron failed --> -22
[ 2.726001] ------------[ cut here ]------------
[ 2.730583] WARNING: CPU: 0 PID: 12 at drivers/regulator/core.c:2039 _regulator_put+0x3c/0xe8
[ 2.738983] Modules linked in:
[ 2.742005] CPU: 0 PID: 12 Comm: kworker/0:1 Not tainted 5.2.9-1-ARCH #1
[ 2.748643] Hardware name: Hardkernel ODROID-C2 (DT)
[ 2.753566] Workqueue: events deferred_probe_work_func
[ 2.758649] pstate: 60000005 (nZCv daif -PAN -UAO)
[ 2.763394] pc : _regulator_put+0x3c/0xe8
[ 2.767361] lr : _regulator_put+0x3c/0xe8
[ 2.771326] sp : ffff000011aa3a50
[ 2.774604] x29: ffff000011aa3a50 x28: ffff80007ed1b600
[ 2.779865] x27: ffff80007f7036a8 x26: ffff80007f7036a8
[ 2.785126] x25: 0000000000000000 x24: ffff000011a44458
[ 2.790387] x23: ffff000011344218 x22: 0000000000000009
[ 2.795649] x21: ffff000011aa3b68 x20: ffff80007ed1b500
[ 2.800910] x19: ffff80007ed1b500 x18: 0000000000000010
[ 2.806171] x17: 000000005be5943c x16: 00000000f1c73b29
[ 2.811432] x15: ffffffffffffffff x14: ffff0000117396c8
[ 2.816694] x13: ffff000091aa37a7 x12: ffff000011aa37af
[ 2.821955] x11: ffff000011763000 x10: ffff000011aa3730
[ 2.827216] x9 : 00000000ffffffd0 x8 : ffff000010871760
[ 2.832477] x7 : 00000000000000d0 x6 : ffff0000119d151b
[ 2.837739] x5 : 000000000000000f x4 : 0000000000000000
[ 2.843000] x3 : 0000000000000000 x2 : 38104b2678c20100
[ 2.848261] x1 : 0000000000000000 x0 : 0000000000000024
[ 2.853523] Call trace:
[ 2.855940] _regulator_put+0x3c/0xe8
[ 2.859562] regulator_put+0x34/0x48
[ 2.863098] regulator_bulk_free+0x40/0x58
[ 2.867153] devm_regulator_bulk_release+0x24/0x30
[ 2.871896] release_nodes+0x1f0/0x2e0
[ 2.875604] devres_release_all+0x64/0xa4
[ 2.879571] really_probe+0x1c8/0x3e0
[ 2.883194] driver_probe_device+0xe4/0x138
[ 2.887334] __device_attach_driver+0x90/0x110
[ 2.891733] bus_for_each_drv+0x8c/0xd8
[ 2.895527] __device_attach+0xdc/0x160
[ 2.899322] device_initial_probe+0x24/0x30
[ 2.903463] bus_probe_device+0x9c/0xa8
[ 2.907258] deferred_probe_work_func+0xa0/0xf0
[ 2.911745] process_one_work+0x1b4/0x408
[ 2.915711] worker_thread+0x54/0x4b8
[ 2.919334] kthread+0x12c/0x130
[ 2.922526] ret_from_fork+0x10/0x1c
[ 2.926060] ---[ end trace 51a68f4c0035d6c0 ]---
[ 2.930691] ------------[ cut here ]------------
[ 2.935242] WARNING: CPU: 0 PID: 12 at drivers/regulator/core.c:2039 _regulator_put+0x3c/0xe8
[ 2.943653] Modules linked in:
[ 2.946675] CPU: 0 PID: 12 Comm: kworker/0:1 Tainted: G W 5.2.9-1-ARCH #1
[ 2.954694] Hardware name: Hardkernel ODROID-C2 (DT)
[ 2.959613] Workqueue: events deferred_probe_work_func
[ 2.964700] pstate: 60000005 (nZCv daif -PAN -UAO)
[ 2.969445] pc : _regulator_put+0x3c/0xe8
[ 2.973412] lr : _regulator_put+0x3c/0xe8
[ 2.977377] sp : ffff000011aa3a50
[ 2.980655] x29: ffff000011aa3a50 x28: ffff80007ed1b600
[ 2.985916] x27: ffff80007f7036a8 x26: ffff80007f7036a8
[ 2.991177] x25: 0000000000000000 x24: ffff000011a44458
[ 2.996439] x23: ffff000011344218 x22: 0000000000000009
[ 3.001700] x21: ffff000011aa3b68 x20: ffff80007ed1bd00
[ 3.006961] x19: ffff80007ed1bd00 x18: 0000000000000010
[ 3.012222] x17: 000000005be5943c x16: 00000000f1c73b29
[ 3.017484] x15: ffffffffffffffff x14: ffff0000117396c8
[ 3.022745] x13: ffff000091aa37a7 x12: ffff000011aa37af
[ 3.028006] x11: ffff000011763000 x10: ffff000011aa3730
[ 3.033267] x9 : 00000000ffffffd0 x8 : ffff000010871760
[ 3.038528] x7 : 00000000000000fd x6 : ffff0000119d151b
[ 3.043790] x5 : 000000000000000f x4 : 0000000000000000
[ 3.049051] x3 : 0000000000000000 x2 : 38104b2678c20100
[ 3.054312] x1 : 0000000000000000 x0 : 0000000000000024
[ 3.059574] Call trace:
[ 3.061991] _regulator_put+0x3c/0xe8
[ 3.065613] regulator_put+0x34/0x48
[ 3.069149] regulator_bulk_free+0x40/0x58
[ 3.073203] devm_regulator_bulk_release+0x24/0x30
[ 3.077947] release_nodes+0x1f0/0x2e0
[ 3.081655] devres_release_all+0x64/0xa4
[ 3.085622] really_probe+0x1c8/0x3e0
[ 3.089245] driver_probe_device+0xe4/0x138
[ 3.093385] __device_attach_driver+0x90/0x110
[ 3.097784] bus_for_each_drv+0x8c/0xd8
[ 3.101578] __device_attach+0xdc/0x160
[ 3.105373] device_initial_probe+0x24/0x30
[ 3.109514] bus_probe_device+0x9c/0xa8
[ 3.113309] deferred_probe_work_func+0xa0/0xf0
[ 3.117796] process_one_work+0x1b4/0x408
[ 3.121762] worker_thread+0x54/0x4b8
[ 3.125384] kthread+0x12c/0x130
[ 3.128575] ret_from_fork+0x10/0x1c
[ 3.132110] ---[ end trace 51a68f4c0035d6c1 ]---
[ 3.136753] dwc2: probe of c9000000.usb failed with error -22
Fixes: 5a0803bd5ae2 ("ARM64: dts: meson-gxbb-odroidc2: Enable USB Nodes")
Cc: Martin Blumenstingl <martin.blumenstingl@xxxxxxxxxxxxxx>
Cc: Jerome Brunet <jbrunet@xxxxxxxxxxxx>
Cc: Neil Armstrong <narmstrong@xxxxxxxxxxxx>
Signed-off-by: Anand Moon <linux.amoon@xxxxxxxxx>
---
[0] https://patchwork.kernel.org/patch/10757569/
Earlier my approach to initialize the usb0 bus was limited, some more
phy tuning is required both at driver and u-boot to get this feature
working. So for now just disable this.
---
arch/arm64/boot/dts/amlogic/meson-gxbb-odroidc2.dts | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/arm64/boot/dts/amlogic/meson-gxbb-odroidc2.dts b/arch/arm64/boot/dts/amlogic/meson-gxbb-odroidc2.dts
index f3dcabf97c63..792698a60a12 100644
--- a/arch/arm64/boot/dts/amlogic/meson-gxbb-odroidc2.dts
+++ b/arch/arm64/boot/dts/amlogic/meson-gxbb-odroidc2.dts
@@ -312,7 +312,7 @@
};
&usb0_phy {
- status = "okay";
+ status = "disabled";
phy-supply = <&usb_otg_pwr>;
};
@@ -322,7 +322,7 @@
};
&usb0 {
- status = "okay";
+ status = "disabled";
};
&usb1 {
--
2.23.0