[PATCH v2] arm64: dts: qcom: sda660-inforce-ifc6560: fix ADV7535 interrupt pin

[PATCH v2] arm64: dts: qcom: sda660-inforce-ifc6560: fix ADV7535 interrupt pin

[Dmitry Baryshkov]

Probing the ADV7535 HDMI bridge fails on the IFC6560:

  gpio gpiochip3: (800f000.spmi:pmic@2:gpio@c000): gpiochip_lock_as_irq: tried to flag a GPIO set as output for IRQ
  gpio gpiochip3: (800f000.spmi:pmic@2:gpio@c000): unable to lock HW IRQ 10 for IRQ

The bridge's interrupt line is PM660L GPIO11, but the board never
configures that pad. pmic_gpio_populate() reads back the state left by
the bootloader, which is PMIC_GPIO_MODE_DIGITAL_OUTPUT, so
pmic_gpio_get_direction() reports GPIO_LINE_DIRECTION_OUT and
gpiochip_lock_as_irq() refuses the line. Requesting the interrupt then
fails and the bridge does not probe.

Add a default pinctrl state switching the pad to digital input, applied
by pinctrl_bind_pins() before the driver requests the interrupt. The
ADV7535 INT pin is open-drain and pulled up on the board, so leave the
internal bias disabled.

Fixes: 34279d6e3f32 ("arm64: dts: qcom: sdm660: Add initial Inforce IFC6560 board support")
Reviewed-by: Abel Vesa <abel.vesa@oss.qualcomm.com>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
---
Changes in v2:
- Dropped extra empty line (Konrad)
- Added a note about pull-up for the IRQ line present on the PCB.
- Link to v1: https://patch.msgid.link/20260920-ifc6560-adv-v1-1-89b1435d00c2@oss.qualcomm.com
---
 arch/arm64/boot/dts/qcom/sda660-inforce-ifc6560.dts | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/sda660-inforce-ifc6560.dts b/arch/arm64/boot/dts/qcom/sda660-inforce-ifc6560.dts
index 9e14f53b552e..10b454cc4218 100644
--- a/arch/arm64/boot/dts/qcom/sda660-inforce-ifc6560.dts
+++ b/arch/arm64/boot/dts/qcom/sda660-inforce-ifc6560.dts
@@ -170,6 +170,9 @@ adv7533: hdmi@39 {
 		interrupt-parent = <&pm660l_gpios>;
 		interrupts = <11 IRQ_TYPE_EDGE_FALLING>;
 
+		pinctrl-0 = <&adv7533_int_default>;
+		pinctrl-names = "default";
+
 		clocks = <&rpmcc RPM_SMD_BB_CLK2>;
 		clock-names = "cec";
 		/*
@@ -285,6 +288,16 @@ sw_ctrl_default: sw-ctrl-default-state {
 	};
 };
 
+&pm660l_gpios {
+	adv7533_int_default: adv7533-int-default-state {
+		pins = "gpio11";
+		function = "normal";
+		input-enable;
+		/* pull-up on board */
+		bias-disable;
+	};
+};
+
 &qusb2phy0 {
 	status = "okay";
 

---
base-commit: 2efb7a11f1aa4d2dc285fe2680cca22cb9f72f64
change-id: 20260920-ifc6560-adv-b8ed1242008b

Best regards,
--  
With best wishes
Dmitry

Re: [PATCH v2] arm64: dts: qcom: sda660-inforce-ifc6560: fix ADV7535 interrupt pin

[Dmitry Baryshkov]

On Mon, Oct 19, 2026 at 05:30:08PM +0300, Dmitry Baryshkov wrote:
> Probing the ADV7535 HDMI bridge fails on the IFC6560:
> 
>   gpio gpiochip3: (800f000.spmi:pmic@2:gpio@c000): gpiochip_lock_as_irq: tried to flag a GPIO set as output for IRQ
>   gpio gpiochip3: (800f000.spmi:pmic@2:gpio@c000): unable to lock HW IRQ 10 for IRQ
> 
> The bridge's interrupt line is PM660L GPIO11, but the board never
> configures that pad. pmic_gpio_populate() reads back the state left by
> the bootloader, which is PMIC_GPIO_MODE_DIGITAL_OUTPUT, so
> pmic_gpio_get_direction() reports GPIO_LINE_DIRECTION_OUT and
> gpiochip_lock_as_irq() refuses the line. Requesting the interrupt then
> fails and the bridge does not probe.
> 
> Add a default pinctrl state switching the pad to digital input, applied
> by pinctrl_bind_pins() before the driver requests the interrupt. The
> ADV7535 INT pin is open-drain and pulled up on the board, so leave the
> internal bias disabled.
> 
> Fixes: 34279d6e3f32 ("arm64: dts: qcom: sdm660: Add initial Inforce IFC6560 board support")
> Reviewed-by: Abel Vesa <abel.vesa@oss.qualcomm.com>
> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
> ---
> Changes in v2:
> - Dropped extra empty line (Konrad)
> - Added a note about pull-up for the IRQ line present on the PCB.
> - Link to v1: https://patch.msgid.link/20260920-ifc6560-adv-v1-1-89b1435d00c2@oss.qualcomm.com
> ---
>  arch/arm64/boot/dts/qcom/sda660-inforce-ifc6560.dts | 13 +++++++++++++
>  1 file changed, 13 insertions(+)
> 
Other than Sashiko's mention of output-disable, I'd also need to correct
the PMIC that provides a GPIO, so there will be a v3.

-- 
With best wishes
Dmitry

Re: [PATCH v2] arm64: dts: qcom: sda660-inforce-ifc6560: fix ADV7535 interrupt pin

[Konrad Dybcio]

On 10/19/26 4:30 PM, Dmitry Baryshkov wrote:
> Probing the ADV7535 HDMI bridge fails on the IFC6560:
> 
>   gpio gpiochip3: (800f000.spmi:pmic@2:gpio@c000): gpiochip_lock_as_irq: tried to flag a GPIO set as output for IRQ
>   gpio gpiochip3: (800f000.spmi:pmic@2:gpio@c000): unable to lock HW IRQ 10 for IRQ
> 
> The bridge's interrupt line is PM660L GPIO11, but the board never
> configures that pad. pmic_gpio_populate() reads back the state left by
> the bootloader, which is PMIC_GPIO_MODE_DIGITAL_OUTPUT, so
> pmic_gpio_get_direction() reports GPIO_LINE_DIRECTION_OUT and
> gpiochip_lock_as_irq() refuses the line. Requesting the interrupt then
> fails and the bridge does not probe.
> 
> Add a default pinctrl state switching the pad to digital input, applied
> by pinctrl_bind_pins() before the driver requests the interrupt. The
> ADV7535 INT pin is open-drain and pulled up on the board, so leave the
> internal bias disabled.
> 
> Fixes: 34279d6e3f32 ("arm64: dts: qcom: sdm660: Add initial Inforce IFC6560 board support")
> Reviewed-by: Abel Vesa <abel.vesa@oss.qualcomm.com>
> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
> ---

Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>

Konrad