[PATCH 1/2] soc/tegra: pmc: Enable PMIC wake event on Tegra210

[PATCH 1/2] soc/tegra: pmc: Enable PMIC wake event on Tegra210

[Jon Hunter]

The PMIC wake event can be used to bring the system out of suspend based
on certain events happening on the PMIC (such as an RTC alarm).

Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
---
 drivers/soc/tegra/pmc.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/soc/tegra/pmc.c b/drivers/soc/tegra/pmc.c
index 8169737c3252..42cf37a0556b 100644
--- a/drivers/soc/tegra/pmc.c
+++ b/drivers/soc/tegra/pmc.c
@@ -3063,6 +3063,7 @@ static const struct pinctrl_pin_desc tegra210_pin_descs[] = {
 
 static const struct tegra_wake_event tegra210_wake_events[] = {
 	TEGRA_WAKE_IRQ("rtc", 16, 2),
+	TEGRA_WAKE_IRQ("pmu", 51, 86),
 };
 
 static const struct tegra_pmc_soc tegra210_pmc_soc = {
-- 
2.17.1

[PATCH 2/2] arm64: tegra: Make the RTC a wakeup source on Jetson Nano and TX1

[Jon Hunter]

The RTC found on the MAX77620 PMIC can be used as a wakeup source on
Jetson Nano and TX1, which is useful to wake the system from suspend
at a given time.

Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
---
 arch/arm64/boot/dts/nvidia/tegra210-p2180.dtsi     | 3 ++-
 arch/arm64/boot/dts/nvidia/tegra210-p3450-0000.dts | 3 ++-
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/boot/dts/nvidia/tegra210-p2180.dtsi b/arch/arm64/boot/dts/nvidia/tegra210-p2180.dtsi
index f87d2437d11c..cc6ed45a2b48 100644
--- a/arch/arm64/boot/dts/nvidia/tegra210-p2180.dtsi
+++ b/arch/arm64/boot/dts/nvidia/tegra210-p2180.dtsi
@@ -38,7 +38,8 @@
 		pmic: pmic@3c {
 			compatible = "maxim,max77620";
 			reg = <0x3c>;
-			interrupts = <GIC_SPI 86 IRQ_TYPE_LEVEL_HIGH>;
+			interrupt-parent = <&tegra_pmc>;
+			interrupts = <51 IRQ_TYPE_LEVEL_LOW>;
 
 			#interrupt-cells = <2>;
 			interrupt-controller;
diff --git a/arch/arm64/boot/dts/nvidia/tegra210-p3450-0000.dts b/arch/arm64/boot/dts/nvidia/tegra210-p3450-0000.dts
index 374ce58b2b38..9bc52fdb393c 100644
--- a/arch/arm64/boot/dts/nvidia/tegra210-p3450-0000.dts
+++ b/arch/arm64/boot/dts/nvidia/tegra210-p3450-0000.dts
@@ -149,7 +149,8 @@
 		pmic: pmic@3c {
 			compatible = "maxim,max77620";
 			reg = <0x3c>;
-			interrupts = <GIC_SPI 86 IRQ_TYPE_LEVEL_HIGH>;
+			interrupt-parent = <&tegra_pmc>;
+			interrupts = <51 IRQ_TYPE_LEVEL_LOW>;
 
 			#interrupt-cells = <2>;
 			interrupt-controller;
-- 
2.17.1

Re: [PATCH 1/2] soc/tegra: pmc: Enable PMIC wake event on Tegra210

[Thierry Reding]

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On Wed, May 20, 2020 at 04:13:17PM +0100, Jon Hunter wrote:
> The PMIC wake event can be used to bring the system out of suspend based
> on certain events happening on the PMIC (such as an RTC alarm).
> 
> Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
> ---
>  drivers/soc/tegra/pmc.c | 1 +
>  1 file changed, 1 insertion(+)

Both patches applied, thanks.

Thierry

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