arm64: dts: mediatek: mt8195: Add power domain to secondary XHCI

[PATCH] arm64: dts: mediatek: mt8195: Add power domain to secondary XHCI

Posted by AngeloGioacchino Del Regno 2 months, 1 week ago

The secondary XHCI controller, using a PHY that is shared between
it and the secondary PCI-Express controller, gets powered by the
PCIE_MAC_P1 power domain.

Add this power domain to the usb@11290000 node to fix probe.

Fixes: 37f2582883be ("arm64: dts: Add mediatek SoC mt8195 and evaluation board")
Reported-by: Nícolas F. R. A. Prado <nfraprado@collabora.com> #KernelCI
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
---
 arch/arm64/boot/dts/mediatek/mt8195.dtsi | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm64/boot/dts/mediatek/mt8195.dtsi b/arch/arm64/boot/dts/mediatek/mt8195.dtsi
index 2ee45752583c..96ad1b14626e 100644
--- a/arch/arm64/boot/dts/mediatek/mt8195.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt8195.dtsi
@@ -1445,6 +1445,7 @@ xhci1: usb@11290000 {
 			reg-names = "mac", "ippc";
 			interrupts = <GIC_SPI 530 IRQ_TYPE_LEVEL_HIGH 0>;
 			phys = <&u2port1 PHY_TYPE_USB2>;
+			power-domains = <&spm MT8195_POWER_DOMAIN_PCIE_MAC_P1>;
 			assigned-clocks = <&topckgen CLK_TOP_USB_TOP_1P>,
 					  <&topckgen CLK_TOP_SSUSB_XHCI_1P>;
 			assigned-clock-parents = <&topckgen CLK_TOP_UNIVPLL_D5_D4>,
-- 
2.45.2

Re: [PATCH] arm64: dts: mediatek: mt8195: Add power domain to secondary XHCI

Posted by Nícolas F. R. A. Prado 2 months, 1 week ago

On Thu, Jul 11, 2024 at 11:32:30AM +0200, AngeloGioacchino Del Regno wrote:
> The secondary XHCI controller, using a PHY that is shared between
> it and the secondary PCI-Express controller, gets powered by the
> PCIE_MAC_P1 power domain.
> 
> Add this power domain to the usb@11290000 node to fix probe.
> 
> Fixes: 37f2582883be ("arm64: dts: Add mediatek SoC mt8195 and evaluation board")
> Reported-by: Nícolas F. R. A. Prado <nfraprado@collabora.com> #KernelCI
> Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>

Hi Angelo,

thanks for the patch, but unfortunately it doesn't fix the issue:

[   10.772128] mtk-pcie-gen3 112f8000.pcie: host bridge /soc/pcie@112f8000 ranges:
[   10.788914] mtk-pcie-gen3 112f8000.pcie:       IO 0x0024000000..0x00241fffff -> 0x0024000000
[   10.802111] mtk-pcie-gen3 112f8000.pcie:      MEM 0x0024200000..0x0027ffffff -> 0x0024200000
[   10.941278] mtk-pcie-gen3 112f8000.pcie: PCI host bridge to bus 0000:00

[   10.785937] xhci-mtk 11290000.usb: uwk - reg:0x400, version:104
[   10.796352] xhci-mtk 11290000.usb: xHCI Host Controller
[   10.810530] xhci-mtk 11290000.usb: new USB bus registered, assigned bus number 5
[   10.844258] xhci-mtk 11290000.usb: clocks are not stable (0x1003d0f)
[   10.844262] xhci-mtk 11290000.usb: can't setup: -110
[   10.844266] xhci-mtk 11290000.usb: USB bus 5 deregistered
[   10.861969] xhci-mtk 11290000.usb: probe with driver xhci-mtk failed with error -110

In fact it seems to have made the issue more frequent, as it happened every time
for the 5 boots I tried.

But that gives me idea to try booting with clk_ignore_unused and
pd_ignore_unused. I'll update the report with the results.

Thanks,
Nícolas

> ---
>  arch/arm64/boot/dts/mediatek/mt8195.dtsi | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/arch/arm64/boot/dts/mediatek/mt8195.dtsi b/arch/arm64/boot/dts/mediatek/mt8195.dtsi
> index 2ee45752583c..96ad1b14626e 100644
> --- a/arch/arm64/boot/dts/mediatek/mt8195.dtsi
> +++ b/arch/arm64/boot/dts/mediatek/mt8195.dtsi
> @@ -1445,6 +1445,7 @@ xhci1: usb@11290000 {
>  			reg-names = "mac", "ippc";
>  			interrupts = <GIC_SPI 530 IRQ_TYPE_LEVEL_HIGH 0>;
>  			phys = <&u2port1 PHY_TYPE_USB2>;
> +			power-domains = <&spm MT8195_POWER_DOMAIN_PCIE_MAC_P1>;
>  			assigned-clocks = <&topckgen CLK_TOP_USB_TOP_1P>,
>  					  <&topckgen CLK_TOP_SSUSB_XHCI_1P>;
>  			assigned-clock-parents = <&topckgen CLK_TOP_UNIVPLL_D5_D4>,
> -- 
> 2.45.2
>

Re: [PATCH] arm64: dts: mediatek: mt8195: Add power domain to secondary XHCI

Posted by AngeloGioacchino Del Regno 2 months, 1 week ago

Il 11/07/24 17:00, Nícolas F. R. A. Prado ha scritto:
> On Thu, Jul 11, 2024 at 11:32:30AM +0200, AngeloGioacchino Del Regno wrote:
>> The secondary XHCI controller, using a PHY that is shared between
>> it and the secondary PCI-Express controller, gets powered by the
>> PCIE_MAC_P1 power domain.
>>
>> Add this power domain to the usb@11290000 node to fix probe.
>>
>> Fixes: 37f2582883be ("arm64: dts: Add mediatek SoC mt8195 and evaluation board")
>> Reported-by: Nícolas F. R. A. Prado <nfraprado@collabora.com> #KernelCI
>> Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
> 
> Hi Angelo,
> 
> thanks for the patch, but unfortunately it doesn't fix the issue:
> 
> [   10.772128] mtk-pcie-gen3 112f8000.pcie: host bridge /soc/pcie@112f8000 ranges:
> [   10.788914] mtk-pcie-gen3 112f8000.pcie:       IO 0x0024000000..0x00241fffff -> 0x0024000000
> [   10.802111] mtk-pcie-gen3 112f8000.pcie:      MEM 0x0024200000..0x0027ffffff -> 0x0024200000
> [   10.941278] mtk-pcie-gen3 112f8000.pcie: PCI host bridge to bus 0000:00
> 
> [   10.785937] xhci-mtk 11290000.usb: uwk - reg:0x400, version:104
> [   10.796352] xhci-mtk 11290000.usb: xHCI Host Controller
> [   10.810530] xhci-mtk 11290000.usb: new USB bus registered, assigned bus number 5
> [   10.844258] xhci-mtk 11290000.usb: clocks are not stable (0x1003d0f)
> [   10.844262] xhci-mtk 11290000.usb: can't setup: -110
> [   10.844266] xhci-mtk 11290000.usb: USB bus 5 deregistered
> [   10.861969] xhci-mtk 11290000.usb: probe with driver xhci-mtk failed with error -110
> 
> In fact it seems to have made the issue more frequent, as it happened every time
> for the 5 boots I tried.
> 

Oddly this did fix the issue on my Tomato R3.... but there's clearly something else
that is going on.

Let's keep trying.

Thanks!
Angelo

> But that gives me idea to try booting with clk_ignore_unused and
> pd_ignore_unused. I'll update the report with the results.
> 
> Thanks,
> Nícolas
> 
>> ---
>>   arch/arm64/boot/dts/mediatek/mt8195.dtsi | 1 +
>>   1 file changed, 1 insertion(+)
>>
>> diff --git a/arch/arm64/boot/dts/mediatek/mt8195.dtsi b/arch/arm64/boot/dts/mediatek/mt8195.dtsi
>> index 2ee45752583c..96ad1b14626e 100644
>> --- a/arch/arm64/boot/dts/mediatek/mt8195.dtsi
>> +++ b/arch/arm64/boot/dts/mediatek/mt8195.dtsi
>> @@ -1445,6 +1445,7 @@ xhci1: usb@11290000 {
>>   			reg-names = "mac", "ippc";
>>   			interrupts = <GIC_SPI 530 IRQ_TYPE_LEVEL_HIGH 0>;
>>   			phys = <&u2port1 PHY_TYPE_USB2>;
>> +			power-domains = <&spm MT8195_POWER_DOMAIN_PCIE_MAC_P1>;
>>   			assigned-clocks = <&topckgen CLK_TOP_USB_TOP_1P>,
>>   					  <&topckgen CLK_TOP_SSUSB_XHCI_1P>;
>>   			assigned-clock-parents = <&topckgen CLK_TOP_UNIVPLL_D5_D4>,
>> -- 
>> 2.45.2
>>