[PATCH 0/3] arm64: dts: qcom: fix USB wakeup interrupts again (pt 2)

[PATCH 0/3] arm64: dts: qcom: fix USB wakeup interrupts again (pt 2)

[Johan Hovold]

The USB DP/DM HS PHY interrupts need to be provided by the PDC interrupt
controller in order to be able to wake the system up from low-power
states and to be able to detect disconnect events, which requires
triggering on falling edges.

A recent commit updated the trigger type but failed to change the
interrupt provider as required. This leads to the current Linux driver
failing to probe instead of printing an error during suspend and USB
wakeup not working as intended.

While at it, fix also the SS PHY interrupt so that it too can be used to
wakeup the system up.

Thanks to Konrad and Krishna for providing the sdm670 PDC interrupts
numbers. The sc8180x SS PHY vectors I inferred from sdm670/sdm845/sm8150
which appear to use the name configuration.

After this series, only sm6375 remains to be fixed and I believe Bjorn
is trying to dig out the corresponding vectors.

Also note that these patches have only been compile tested.

Johan


Johan Hovold (3):
  arm64: dts: qcom: sdm670: fix USB DP/DM HS PHY interrupts
  arm64: dts: qcom: sdm670: fix USB SS wakeup
  arm64: dts: qcom: sc8180x: fix USB SS wakeup

 arch/arm64/boot/dts/qcom/sc8180x.dtsi | 4 ++--
 arch/arm64/boot/dts/qcom/sdm670.dtsi  | 8 ++++----
 2 files changed, 6 insertions(+), 6 deletions(-)

-- 
2.41.0

[PATCH 1/3] arm64: dts: qcom: sdm670: fix USB DP/DM HS PHY interrupts

[Johan Hovold]

The USB DP/DM HS PHY interrupts need to be provided by the PDC interrupt
controller in order to be able to wake the system up from low-power
states and to be able to detect disconnect events, which requires
triggering on falling edges.

A recent commit updated the trigger type but failed to change the
interrupt provider as required. This leads to the current Linux driver
failing to probe instead of printing an error during suspend and USB
wakeup not working as intended.

Fixes: de3b3de30999 ("arm64: dts: qcom: sdm670: fix USB wakeup interrupt types")
Fixes: 07c8ded6e373 ("arm64: dts: qcom: add sdm670 and pixel 3a device trees")
Cc: stable@vger.kernel.org      # 6.2
Cc: Richard Acayan <mailingradian@gmail.com>
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
---
 arch/arm64/boot/dts/qcom/sdm670.dtsi | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/arm64/boot/dts/qcom/sdm670.dtsi b/arch/arm64/boot/dts/qcom/sdm670.dtsi
index c873560ae9d5..fe4067c012a0 100644
--- a/arch/arm64/boot/dts/qcom/sdm670.dtsi
+++ b/arch/arm64/boot/dts/qcom/sdm670.dtsi
@@ -1295,10 +1295,10 @@ usb_1: usb@a6f8800 {
 					  <&gcc GCC_USB30_PRIM_MASTER_CLK>;
 			assigned-clock-rates = <19200000>, <150000000>;
 
-			interrupts = <GIC_SPI 131 IRQ_TYPE_LEVEL_HIGH>,
-				     <GIC_SPI 486 IRQ_TYPE_LEVEL_HIGH>,
-				     <GIC_SPI 488 IRQ_TYPE_EDGE_BOTH>,
-				     <GIC_SPI 489 IRQ_TYPE_EDGE_BOTH>;
+			interrupts-extended = <&intc GIC_SPI 131 IRQ_TYPE_LEVEL_HIGH>,
+					      <&intc GIC_SPI 486 IRQ_TYPE_LEVEL_HIGH>,
+					      <&pdc 8 IRQ_TYPE_EDGE_BOTH>,
+					      <&pdc 9 IRQ_TYPE_EDGE_BOTH>;
 			interrupt-names = "hs_phy_irq", "ss_phy_irq",
 					  "dm_hs_phy_irq", "dp_hs_phy_irq";
 
-- 
2.41.0

[PATCH 2/3] arm64: dts: qcom: sdm670: fix USB SS wakeup

[Johan Hovold]

The USB SS PHY interrupt needs to be provided by the PDC interrupt
controller in order to be able to wake the system up from low-power
states.

Fixes: 07c8ded6e373 ("arm64: dts: qcom: add sdm670 and pixel 3a device trees")
Cc: stable@vger.kernel.org      # 6.2
Cc: Richard Acayan <mailingradian@gmail.com>
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
---
 arch/arm64/boot/dts/qcom/sdm670.dtsi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/qcom/sdm670.dtsi b/arch/arm64/boot/dts/qcom/sdm670.dtsi
index fe4067c012a0..730c8351bcaa 100644
--- a/arch/arm64/boot/dts/qcom/sdm670.dtsi
+++ b/arch/arm64/boot/dts/qcom/sdm670.dtsi
@@ -1296,7 +1296,7 @@ usb_1: usb@a6f8800 {
 			assigned-clock-rates = <19200000>, <150000000>;
 
 			interrupts-extended = <&intc GIC_SPI 131 IRQ_TYPE_LEVEL_HIGH>,
-					      <&intc GIC_SPI 486 IRQ_TYPE_LEVEL_HIGH>,
+					      <&pdc 6 IRQ_TYPE_LEVEL_HIGH>,
 					      <&pdc 8 IRQ_TYPE_EDGE_BOTH>,
 					      <&pdc 9 IRQ_TYPE_EDGE_BOTH>;
 			interrupt-names = "hs_phy_irq", "ss_phy_irq",
-- 
2.41.0

[PATCH 3/3] arm64: dts: qcom: sc8180x: fix USB SS wakeup

[Johan Hovold]

The USB SS PHY interrupt needs to be provided by the PDC interrupt
controller in order to be able to wake the system up from low-power
states.

Fixes: b080f53a8f44 ("arm64: dts: qcom: sc8180x: Add remoteprocs, wifi and usb nodes")
Cc: stable@vger.kernel.org      # 6.5
Cc: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
---
 arch/arm64/boot/dts/qcom/sc8180x.dtsi | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/boot/dts/qcom/sc8180x.dtsi b/arch/arm64/boot/dts/qcom/sc8180x.dtsi
index 8f95779c75fa..7a53d6d18498 100644
--- a/arch/arm64/boot/dts/qcom/sc8180x.dtsi
+++ b/arch/arm64/boot/dts/qcom/sc8180x.dtsi
@@ -2549,7 +2549,7 @@ usb_prim: usb@a6f8800 {
 			compatible = "qcom,sc8180x-dwc3", "qcom,dwc3";
 			reg = <0 0x0a6f8800 0 0x400>;
 			interrupts-extended = <&intc GIC_SPI 131 IRQ_TYPE_LEVEL_HIGH>,
-					      <&intc GIC_SPI 486 IRQ_TYPE_LEVEL_HIGH>,
+					      <&pdc 6 IRQ_TYPE_LEVEL_HIGH>,
 					      <&pdc 8 IRQ_TYPE_EDGE_BOTH>,
 					      <&pdc 9 IRQ_TYPE_EDGE_BOTH>;
 			interrupt-names = "hs_phy_irq",
@@ -2623,7 +2623,7 @@ usb_sec: usb@a8f8800 {
 			resets = <&gcc GCC_USB30_SEC_BCR>;
 			power-domains = <&gcc USB30_SEC_GDSC>;
 			interrupts-extended = <&intc GIC_SPI 136 IRQ_TYPE_LEVEL_HIGH>,
-					      <&intc GIC_SPI 487 IRQ_TYPE_LEVEL_HIGH>,
+					      <&pdc 7 IRQ_TYPE_LEVEL_HIGH>,
 					      <&pdc 10 IRQ_TYPE_EDGE_BOTH>,
 					      <&pdc 11 IRQ_TYPE_EDGE_BOTH>;
 			interrupt-names = "hs_phy_irq", "ss_phy_irq",
-- 
2.41.0

Re: [PATCH 1/3] arm64: dts: qcom: sdm670: fix USB DP/DM HS PHY interrupts

[Konrad Dybcio]

On 12/14/23 08:43, Johan Hovold wrote:
> The USB DP/DM HS PHY interrupts need to be provided by the PDC interrupt
> controller in order to be able to wake the system up from low-power
> states and to be able to detect disconnect events, which requires
> triggering on falling edges.
> 
> A recent commit updated the trigger type but failed to change the
> interrupt provider as required. This leads to the current Linux driver
> failing to probe instead of printing an error during suspend and USB
> wakeup not working as intended.
> 
> Fixes: de3b3de30999 ("arm64: dts: qcom: sdm670: fix USB wakeup interrupt types")
> Fixes: 07c8ded6e373 ("arm64: dts: qcom: add sdm670 and pixel 3a device trees")
> Cc: stable@vger.kernel.org      # 6.2
> Cc: Richard Acayan <mailingradian@gmail.com>
> Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
> ---
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>

Konrad

Re: [PATCH 2/3] arm64: dts: qcom: sdm670: fix USB SS wakeup

[Konrad Dybcio]

On 12/14/23 08:43, Johan Hovold wrote:
> The USB SS PHY interrupt needs to be provided by the PDC interrupt
> controller in order to be able to wake the system up from low-power
> states.
> 
> Fixes: 07c8ded6e373 ("arm64: dts: qcom: add sdm670 and pixel 3a device trees")
> Cc: stable@vger.kernel.org      # 6.2
> Cc: Richard Acayan <mailingradian@gmail.com>
> Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
> ---
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>

Konrad

Re: [PATCH 3/3] arm64: dts: qcom: sc8180x: fix USB SS wakeup

[Konrad Dybcio]

On 12/14/23 08:43, Johan Hovold wrote:
> The USB SS PHY interrupt needs to be provided by the PDC interrupt
> controller in order to be able to wake the system up from low-power
> states.
> 
> Fixes: b080f53a8f44 ("arm64: dts: qcom: sc8180x: Add remoteprocs, wifi and usb nodes")
> Cc: stable@vger.kernel.org      # 6.5
> Cc: Vinod Koul <vkoul@kernel.org>
> Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
> ---
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>

Konrad

Re: [PATCH 1/3] arm64: dts: qcom: sdm670: fix USB DP/DM HS PHY interrupts

[Richard Acayan]

On Thu, Dec 14, 2023 at 08:43:17AM +0100, Johan Hovold wrote:
> The USB DP/DM HS PHY interrupts need to be provided by the PDC interrupt
> controller in order to be able to wake the system up from low-power
> states and to be able to detect disconnect events, which requires
> triggering on falling edges.
>
> A recent commit updated the trigger type but failed to change the
> interrupt provider as required. This leads to the current Linux driver
> failing to probe instead of printing an error during suspend and USB
> wakeup not working as intended.
>
> Fixes: de3b3de30999 ("arm64: dts: qcom: sdm670: fix USB wakeup interrupt types")
> Fixes: 07c8ded6e373 ("arm64: dts: qcom: add sdm670 and pixel 3a device trees")
> Cc: stable@vger.kernel.org      # 6.2
> Cc: Richard Acayan <mailingradian@gmail.com>
> Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
> ---

Tested-by: Richard Acayan <mailingradian@gmail.com>

On a Pixel 3a, plugging in a USB cable doesn't wake up the device
(presumably because there is no wakeup-source property) but this gets
USB working again on linux-next.

Re: [PATCH 2/3] arm64: dts: qcom: sdm670: fix USB SS wakeup

[Richard Acayan]

On Thu, Dec 14, 2023 at 08:43:18AM +0100, Johan Hovold wrote:
> The USB SS PHY interrupt needs to be provided by the PDC interrupt
> controller in order to be able to wake the system up from low-power
> states.
>
> Fixes: 07c8ded6e373 ("arm64: dts: qcom: add sdm670 and pixel 3a device trees")
> Cc: stable@vger.kernel.org      # 6.2
> Cc: Richard Acayan <mailingradian@gmail.com>
> Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
> ---

Tested-by: Richard Acayan <mailingradian@gmail.com>

Re: [PATCH 1/3] arm64: dts: qcom: sdm670: fix USB DP/DM HS PHY interrupts

[Johan Hovold]

On Thu, Dec 14, 2023 at 08:46:27PM -0500, Richard Acayan wrote:
> On Thu, Dec 14, 2023 at 08:43:17AM +0100, Johan Hovold wrote:
> > The USB DP/DM HS PHY interrupts need to be provided by the PDC interrupt
> > controller in order to be able to wake the system up from low-power
> > states and to be able to detect disconnect events, which requires
> > triggering on falling edges.
> >
> > A recent commit updated the trigger type but failed to change the
> > interrupt provider as required. This leads to the current Linux driver
> > failing to probe instead of printing an error during suspend and USB
> > wakeup not working as intended.
> >
> > Fixes: de3b3de30999 ("arm64: dts: qcom: sdm670: fix USB wakeup interrupt types")
> > Fixes: 07c8ded6e373 ("arm64: dts: qcom: add sdm670 and pixel 3a device trees")
> > Cc: stable@vger.kernel.org      # 6.2
> > Cc: Richard Acayan <mailingradian@gmail.com>
> > Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
> > ---
> 
> Tested-by: Richard Acayan <mailingradian@gmail.com>
> 
> On a Pixel 3a, plugging in a USB cable doesn't wake up the device
> (presumably because there is no wakeup-source property) but this gets
> USB working again on linux-next.

Thanks for testing. And yes, the wakeup interrupts will indeed not be
enabled at system suspend unless the wakeup-source property is there.
Did you try adding it?

Johan

Re: [PATCH 1/3] arm64: dts: qcom: sdm670: fix USB DP/DM HS PHY interrupts

[Richard Acayan]

On Fri, Dec 15, 2023 at 08:34:39AM +0100, Johan Hovold wrote:
> On Thu, Dec 14, 2023 at 08:46:27PM -0500, Richard Acayan wrote:
> > On Thu, Dec 14, 2023 at 08:43:17AM +0100, Johan Hovold wrote:
> > > The USB DP/DM HS PHY interrupts need to be provided by the PDC interrupt
> > > controller in order to be able to wake the system up from low-power
> > > states and to be able to detect disconnect events, which requires
> > > triggering on falling edges.
> > >
> > > A recent commit updated the trigger type but failed to change the
> > > interrupt provider as required. This leads to the current Linux driver
> > > failing to probe instead of printing an error during suspend and USB
> > > wakeup not working as intended.
> > >
> > > Fixes: de3b3de30999 ("arm64: dts: qcom: sdm670: fix USB wakeup interrupt types")
> > > Fixes: 07c8ded6e373 ("arm64: dts: qcom: add sdm670 and pixel 3a device trees")
> > > Cc: stable@vger.kernel.org      # 6.2
> > > Cc: Richard Acayan <mailingradian@gmail.com>
> > > Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
> > > ---
> > 
> > Tested-by: Richard Acayan <mailingradian@gmail.com>
> > 
> > On a Pixel 3a, plugging in a USB cable doesn't wake up the device
> > (presumably because there is no wakeup-source property) but this gets
> > USB working again on linux-next.
>
> Thanks for testing. And yes, the wakeup interrupts will indeed not be
> enabled at system suspend unless the wakeup-source property is there.
> Did you try adding it?

Just tested today. Adding it does not cause the system to wake up when
plugging in a laptop on the Pixel 3a, but that might just be because
USB wakeups are disabled when the adapter is configured for peripheral
mode.

drivers/usb/dwc3/dwc3-qcom.c (dwc3_qcom_suspend):
	/*
	 * The role is stable during suspend as role switching is done from a
	 * freezable workqueue.
	 */
	if (dwc3_qcom_is_host(qcom) && wakeup) {
		qcom->usb2_speed = dwc3_qcom_read_usb2_speed(qcom);
		dwc3_qcom_enable_interrupts(qcom);
	}

Re: [PATCH 1/3] arm64: dts: qcom: sdm670: fix USB DP/DM HS PHY interrupts

[Richard Acayan]

On Thu, Dec 14, 2023 at 08:43:17AM +0100, Johan Hovold wrote:
> The USB DP/DM HS PHY interrupts need to be provided by the PDC interrupt
> controller in order to be able to wake the system up from low-power
> states and to be able to detect disconnect events, which requires
> triggering on falling edges.
>
> A recent commit updated the trigger type but failed to change the
> interrupt provider as required. This leads to the current Linux driver
> failing to probe instead of printing an error during suspend and USB
> wakeup not working as intended.
>
> Fixes: de3b3de30999 ("arm64: dts: qcom: sdm670: fix USB wakeup interrupt types")
> Fixes: 07c8ded6e373 ("arm64: dts: qcom: add sdm670 and pixel 3a device trees")
> Cc: stable@vger.kernel.org      # 6.2

I almost forgot to mention, both SDM670 patches seem to depend on
b51ee205dc4f ("arm64: dts: qcom: sdm670: Add PDC") in 6.6 to compile
properly.

> Cc: Richard Acayan <mailingradian@gmail.com>
> Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
> ---
>  arch/arm64/boot/dts/qcom/sdm670.dtsi | 8 ++++----
>  1 file changed, 4 insertions(+), 4 deletions(-)
>
> diff --git a/arch/arm64/boot/dts/qcom/sdm670.dtsi b/arch/arm64/boot/dts/qcom/sdm670.dtsi
> index c873560ae9d5..fe4067c012a0 100644
> --- a/arch/arm64/boot/dts/qcom/sdm670.dtsi
> +++ b/arch/arm64/boot/dts/qcom/sdm670.dtsi
> @@ -1295,10 +1295,10 @@ usb_1: usb@a6f8800 {
>  					  <&gcc GCC_USB30_PRIM_MASTER_CLK>;
>  			assigned-clock-rates = <19200000>, <150000000>;
>  
> -			interrupts = <GIC_SPI 131 IRQ_TYPE_LEVEL_HIGH>,
> -				     <GIC_SPI 486 IRQ_TYPE_LEVEL_HIGH>,
> -				     <GIC_SPI 488 IRQ_TYPE_EDGE_BOTH>,
> -				     <GIC_SPI 489 IRQ_TYPE_EDGE_BOTH>;
> +			interrupts-extended = <&intc GIC_SPI 131 IRQ_TYPE_LEVEL_HIGH>,
> +					      <&intc GIC_SPI 486 IRQ_TYPE_LEVEL_HIGH>,
> +					      <&pdc 8 IRQ_TYPE_EDGE_BOTH>,
> +					      <&pdc 9 IRQ_TYPE_EDGE_BOTH>;
>  			interrupt-names = "hs_phy_irq", "ss_phy_irq",
>  					  "dm_hs_phy_irq", "dp_hs_phy_irq";
>  
> -- 
> 2.41.0
>

Re: [PATCH 1/3] arm64: dts: qcom: sdm670: fix USB DP/DM HS PHY interrupts

[Johan Hovold]

On Fri, Dec 15, 2023 at 07:04:23PM -0500, Richard Acayan wrote:
> On Fri, Dec 15, 2023 at 08:34:39AM +0100, Johan Hovold wrote:
> > On Thu, Dec 14, 2023 at 08:46:27PM -0500, Richard Acayan wrote:

> > > Tested-by: Richard Acayan <mailingradian@gmail.com>
> > > 
> > > On a Pixel 3a, plugging in a USB cable doesn't wake up the device
> > > (presumably because there is no wakeup-source property) but this gets
> > > USB working again on linux-next.
> >
> > Thanks for testing. And yes, the wakeup interrupts will indeed not be
> > enabled at system suspend unless the wakeup-source property is there.
> > Did you try adding it?
> 
> Just tested today. Adding it does not cause the system to wake up when
> plugging in a laptop on the Pixel 3a, but that might just be because
> USB wakeups are disabled when the adapter is configured for peripheral
> mode.

Right, wake up is currently only implemented for host mode.

Johan

Re: [PATCH 1/3] arm64: dts: qcom: sdm670: fix USB DP/DM HS PHY interrupts

[Johan Hovold]

On Fri, Dec 15, 2023 at 09:34:53PM -0500, Richard Acayan wrote:
> On Thu, Dec 14, 2023 at 08:43:17AM +0100, Johan Hovold wrote:
> > The USB DP/DM HS PHY interrupts need to be provided by the PDC interrupt
> > controller in order to be able to wake the system up from low-power
> > states and to be able to detect disconnect events, which requires
> > triggering on falling edges.
> >
> > A recent commit updated the trigger type but failed to change the
> > interrupt provider as required. This leads to the current Linux driver
> > failing to probe instead of printing an error during suspend and USB
> > wakeup not working as intended.
> >
> > Fixes: de3b3de30999 ("arm64: dts: qcom: sdm670: fix USB wakeup interrupt types")
> > Fixes: 07c8ded6e373 ("arm64: dts: qcom: add sdm670 and pixel 3a device trees")
> > Cc: stable@vger.kernel.org      # 6.2
> 
> I almost forgot to mention, both SDM670 patches seem to depend on
> b51ee205dc4f ("arm64: dts: qcom: sdm670: Add PDC") in 6.6 to compile
> properly.

Thanks for spotting that. The 6.5 stable tree is EOL now so this will
fortunately not be an issue in practice.

Johan

Re: [PATCH 0/3] arm64: dts: qcom: fix USB wakeup interrupts again (pt 2)

[Bjorn Andersson]

On Thu, 14 Dec 2023 08:43:16 +0100, Johan Hovold wrote:
> The USB DP/DM HS PHY interrupts need to be provided by the PDC interrupt
> controller in order to be able to wake the system up from low-power
> states and to be able to detect disconnect events, which requires
> triggering on falling edges.
> 
> A recent commit updated the trigger type but failed to change the
> interrupt provider as required. This leads to the current Linux driver
> failing to probe instead of printing an error during suspend and USB
> wakeup not working as intended.
> 
> [...]

Applied, thanks!

[1/3] arm64: dts: qcom: sdm670: fix USB DP/DM HS PHY interrupts
      commit: c42d12ea105f67b0f137f1e52d5c59d13fe12b1f
[2/3] arm64: dts: qcom: sdm670: fix USB SS wakeup
      commit: 047b2edc35b8db22354b4fba37818b548fc18896
[3/3] arm64: dts: qcom: sc8180x: fix USB SS wakeup
      commit: 0afa885d42d05d30161ab8eab1ebacd993edb82b

Best regards,
-- 
Bjorn Andersson <andersson@kernel.org>