[PATCH v1 0/4] arm64: dts: freescale: verdin-imx8mm/imx8mp: add sleep-moci support

[PATCH v1 0/4] arm64: dts: freescale: verdin-imx8mm/imx8mp: add sleep-moci support

[Stefan Eichenberger]

From: Stefan Eichenberger <stefan.eichenberger@toradex.com>

This patch series adds support for sleep-moci to the Verdin iMX8MM and
iMX8MP in combination with the Dahlia carrier board. sleep-moci is a
GPIO that allows the system on module to turn off regulators that are
not needed in suspend mode on the carrier board.

Stefan Eichenberger (4):
  arm64: dts: freescale: imx8mp-verdin: replace sleep-moci hog with
    regulator
  arm64: dts: freescale: imx8mp-verdin-dahlia: support sleep-moci
  arm64: dts: freescale: imx8mm-verdin: replace sleep-moci hog with
    regulator
  arm64: dts: freescale: imx8mm-verdin-dahlia: support sleep-moci

 .../dts/freescale/imx8mm-verdin-dahlia.dtsi   | 39 +++++++++++++++
 .../boot/dts/freescale/imx8mm-verdin-dev.dtsi |  5 ++
 .../dts/freescale/imx8mm-verdin-yavia.dtsi    |  5 ++
 .../boot/dts/freescale/imx8mm-verdin.dtsi     | 26 ++++++----
 .../dts/freescale/imx8mp-verdin-dahlia.dtsi   | 50 +++++++++++++++++++
 .../boot/dts/freescale/imx8mp-verdin-dev.dtsi |  5 ++
 .../dts/freescale/imx8mp-verdin-yavia.dtsi    |  5 ++
 .../boot/dts/freescale/imx8mp-verdin.dtsi     | 26 ++++++----
 8 files changed, 141 insertions(+), 20 deletions(-)

-- 
2.40.1


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[PATCH v1 1/4] arm64: dts: freescale: imx8mp-verdin: replace sleep-moci hog with regulator

[Stefan Eichenberger]

From: Stefan Eichenberger <stefan.eichenberger@toradex.com>

The Verdin family has a signal called sleep-moci which can be used to
turn off peripherals on the carrier board when the SoM goes into
suspend. So far we have hogged this signal, which means the peripherals
are always on and it is not possible to add peripherals that depend on
the sleep-moci to be on. With this change, we replace the hog with a
regulator so that peripherals can add their own regulators that use the
same gpio. Carrier boards that allow peripherals to be powered off in
suspend can disable this regulator and implement their own regulator to
control the sleep-moci.

Signed-off-by: Stefan Eichenberger <stefan.eichenberger@toradex.com>
---
 .../dts/freescale/imx8mp-verdin-dahlia.dtsi   |  5 ++++
 .../boot/dts/freescale/imx8mp-verdin-dev.dtsi |  5 ++++
 .../dts/freescale/imx8mp-verdin-yavia.dtsi    |  5 ++++
 .../boot/dts/freescale/imx8mp-verdin.dtsi     | 26 ++++++++++++-------
 4 files changed, 31 insertions(+), 10 deletions(-)

diff --git a/arch/arm64/boot/dts/freescale/imx8mp-verdin-dahlia.dtsi b/arch/arm64/boot/dts/freescale/imx8mp-verdin-dahlia.dtsi
index 7e9e4b13b5c5..e68e0e6f21e9 100644
--- a/arch/arm64/boot/dts/freescale/imx8mp-verdin-dahlia.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mp-verdin-dahlia.dtsi
@@ -70,6 +70,11 @@ &flexspi {
 	status = "okay";
 };
 
+&gpio4 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_ctrl_sleep_moci>;
+};
+
 /* Current measurement into module VCC */
 &hwmon {
 	status = "okay";
diff --git a/arch/arm64/boot/dts/freescale/imx8mp-verdin-dev.dtsi b/arch/arm64/boot/dts/freescale/imx8mp-verdin-dev.dtsi
index a509b2b7fa85..1a2520d4d6cf 100644
--- a/arch/arm64/boot/dts/freescale/imx8mp-verdin-dev.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mp-verdin-dev.dtsi
@@ -93,6 +93,11 @@ &flexspi {
 	status = "okay";
 };
 
+&gpio4 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_ctrl_sleep_moci>;
+};
+
 &gpio_expander_21 {
 	status = "okay";
 	vcc-supply = <&reg_1p8v>;
diff --git a/arch/arm64/boot/dts/freescale/imx8mp-verdin-yavia.dtsi b/arch/arm64/boot/dts/freescale/imx8mp-verdin-yavia.dtsi
index db1722f0d80e..27160024d5b5 100644
--- a/arch/arm64/boot/dts/freescale/imx8mp-verdin-yavia.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mp-verdin-yavia.dtsi
@@ -100,6 +100,11 @@ &flexcan1 {
 	status = "okay";
 };
 
+&gpio4 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_ctrl_sleep_moci>;
+};
+
 &hwmon_temp {
 	status = "okay";
 };
diff --git a/arch/arm64/boot/dts/freescale/imx8mp-verdin.dtsi b/arch/arm64/boot/dts/freescale/imx8mp-verdin.dtsi
index faa17cbbe2fd..e523762947aa 100644
--- a/arch/arm64/boot/dts/freescale/imx8mp-verdin.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mp-verdin.dtsi
@@ -116,6 +116,22 @@ reg_module_eth1phy: regulator-module-eth1phy {
 		vin-supply = <&reg_vdd_3v3>;
 	};
 
+	/*
+	 * By default we enable CTRL_SLEEP_MOCI#, this is required to have
+	 * peripherals on the carrier board powered.
+	 * If more granularity or power saving is required this can be disabled
+	 * in the carrier board device tree files.
+	 */
+	reg_force_sleep_moci: regulator-force-sleep-moci {
+		compatible = "regulator-fixed";
+		enable-active-high;
+		/* Verdin CTRL_SLEEP_MOCI# (SODIMM 256) */
+		gpio = <&gpio4 29 GPIO_ACTIVE_HIGH>;
+		regulator-always-on;
+		regulator-boot-on;
+		regulator-name = "CTRL_SLEEP_MOCI#";
+	};
+
 	reg_usb1_vbus: regulator-usb1-vbus {
 		compatible = "regulator-fixed";
 		enable-active-high;
@@ -439,16 +455,6 @@ &gpio4 {
 			  "SODIMM_256",
 			  "SODIMM_48",
 			  "SODIMM_44";
-
-	ctrl-sleep-moci-hog {
-		gpio-hog;
-		/* Verdin CTRL_SLEEP_MOCI# (SODIMM 256) */
-		gpios = <29 GPIO_ACTIVE_HIGH>;
-		line-name = "CTRL_SLEEP_MOCI#";
-		output-high;
-		pinctrl-names = "default";
-		pinctrl-0 = <&pinctrl_ctrl_sleep_moci>;
-	};
 };
 
 /* On-module I2C */
-- 
2.40.1


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Re: [PATCH v1 1/4] arm64: dts: freescale: imx8mp-verdin: replace sleep-moci hog with regulator

[Francesco Dolcini]

On Fri, Apr 05, 2024 at 06:07:17PM +0200, Stefan Eichenberger wrote:
> From: Stefan Eichenberger <stefan.eichenberger@toradex.com>
> 
> The Verdin family has a signal called sleep-moci which can be used to
> turn off peripherals on the carrier board when the SoM goes into
> suspend. So far we have hogged this signal, which means the peripherals
> are always on and it is not possible to add peripherals that depend on
> the sleep-moci to be on. With this change, we replace the hog with a
> regulator so that peripherals can add their own regulators that use the
> same gpio. Carrier boards that allow peripherals to be powered off in
> suspend can disable this regulator and implement their own regulator to
> control the sleep-moci.
> 
> Signed-off-by: Stefan Eichenberger <stefan.eichenberger@toradex.com>

Reviewed-by: Francesco Dolcini <francesco.dolcini@toradex.com>


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[PATCH v1 2/4] arm64: dts: freescale: imx8mp-verdin-dahlia: support sleep-moci

[Stefan Eichenberger]

From: Stefan Eichenberger <stefan.eichenberger@toradex.com>

Previously, we had the sleep-moci pin set to always on. However, the
Dahlia carrier board supports disabling the sleep-moci when the system
is suspended to power down peripherals that support it. This reduces
overall power consumption. This commit adds support for this feature by
disabling the reg_force_sleep_moci regulator and adding two new
regulators for the USB hub and PCIe that can be turned off when the
system is suspended.

Signed-off-by: Stefan Eichenberger <stefan.eichenberger@toradex.com>
---
 .../dts/freescale/imx8mp-verdin-dahlia.dtsi   | 44 +++++++++++++++++++
 1 file changed, 44 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/imx8mp-verdin-dahlia.dtsi b/arch/arm64/boot/dts/freescale/imx8mp-verdin-dahlia.dtsi
index e68e0e6f21e9..abad1887040a 100644
--- a/arch/arm64/boot/dts/freescale/imx8mp-verdin-dahlia.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mp-verdin-dahlia.dtsi
@@ -32,6 +32,25 @@ simple-audio-card,cpu {
 			sound-dai = <&sai1>;
 		};
 	};
+
+	reg_usb_hub: regulator-usb-hub {
+		compatible = "regulator-fixed";
+		enable-active-high;
+		/* Verdin CTRL_SLEEP_MOCI# (SODIMM 256) */
+		gpio = <&gpio4 29 GPIO_ACTIVE_HIGH>;
+		regulator-boot-on;
+		regulator-name = "HUB_PWR_EN";
+	};
+
+	reg_pcie: regulator-pcie {
+		compatible = "regulator-fixed";
+		enable-active-high;
+		/* Verdin CTRL_SLEEP_MOCI# (SODIMM 256) */
+		gpio = <&gpio4 29 GPIO_ACTIVE_HIGH>;
+		regulator-boot-on;
+		regulator-name = "PCIE_1_PWR_EN";
+		startup-delay-us = <100000>;
+	};
 };
 
 &backlight {
@@ -117,6 +136,7 @@ wm8904_1a: audio-codec@1a {
 
 /* Verdin PCIE_1 */
 &pcie {
+	vpcie-supply = <&reg_pcie>;
 	status = "okay";
 };
 
@@ -143,6 +163,11 @@ &reg_usdhc2_vmmc {
 	vin-supply = <&reg_3p3v>;
 };
 
+/* We support turning off sleep moci on Dahlia */
+&reg_force_sleep_moci {
+	status = "disabled";
+};
+
 /* Verdin I2S_1 */
 &sai1 {
 	assigned-clocks = <&clk IMX8MP_CLK_SAI1>;
@@ -186,6 +211,25 @@ &usb3_phy1 {
 	status = "okay";
 };
 
+&usb_dwc3_1 {
+	#address-cells = <1>;
+	#size-cells = <0>;
+
+	usb_hub_3_0: usb-hub@1 {
+		compatible = "usb424,5744";
+		reg = <1>;
+		peer-hub = <&usb_hub_2_0>;
+		vdd-supply = <&reg_usb_hub>;
+	};
+
+	usb_hub_2_0: usb-hub@2 {
+		compatible = "usb424,2744";
+		reg = <2>;
+		peer-hub = <&usb_hub_3_0>;
+		vdd-supply = <&reg_usb_hub>;
+	};
+};
+
 /* Verdin SD_1 */
 &usdhc2 {
 	status = "okay";
-- 
2.40.1


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Re: [PATCH v1 2/4] arm64: dts: freescale: imx8mp-verdin-dahlia: support sleep-moci

[Francesco Dolcini]

On Fri, Apr 05, 2024 at 06:07:18PM +0200, Stefan Eichenberger wrote:
> From: Stefan Eichenberger <stefan.eichenberger@toradex.com>
> 
> Previously, we had the sleep-moci pin set to always on. However, the
> Dahlia carrier board supports disabling the sleep-moci when the system
> is suspended to power down peripherals that support it. This reduces
> overall power consumption. This commit adds support for this feature by
> disabling the reg_force_sleep_moci regulator and adding two new
> regulators for the USB hub and PCIe that can be turned off when the
> system is suspended.
> 
> Signed-off-by: Stefan Eichenberger <stefan.eichenberger@toradex.com>

Reviewed-by: Francesco Dolcini <francesco.dolcini@toradex.com>


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[PATCH v1 3/4] arm64: dts: freescale: imx8mm-verdin: replace sleep-moci hog with regulator

[Stefan Eichenberger]

From: Stefan Eichenberger <stefan.eichenberger@toradex.com>

The Verdin family has a signal called sleep-moci which can be used to
turn off peripherals on the carrier board when the SoM goes into
suspend. So far we have hogged this signal, which means the peripherals
are always on and it is not possible to add peripherals that depend on
the sleep-moci to be on. With this change, we replace the hog with a
regulator so that peripherals can add their own regulators that use the
same gpio. Carrier boards that allow peripherals to be powered off in
suspend can disable this regulator and implement their own regulator to
control the sleep-moci.

Signed-off-by: Stefan Eichenberger <stefan.eichenberger@toradex.com>
---
 .../dts/freescale/imx8mm-verdin-dahlia.dtsi   |  5 ++++
 .../boot/dts/freescale/imx8mm-verdin-dev.dtsi |  5 ++++
 .../dts/freescale/imx8mm-verdin-yavia.dtsi    |  5 ++++
 .../boot/dts/freescale/imx8mm-verdin.dtsi     | 26 ++++++++++++-------
 4 files changed, 31 insertions(+), 10 deletions(-)

diff --git a/arch/arm64/boot/dts/freescale/imx8mm-verdin-dahlia.dtsi b/arch/arm64/boot/dts/freescale/imx8mm-verdin-dahlia.dtsi
index 1cff0b829357..b64dac4f29c2 100644
--- a/arch/arm64/boot/dts/freescale/imx8mm-verdin-dahlia.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mm-verdin-dahlia.dtsi
@@ -58,6 +58,11 @@ &flexspi {
 	status = "okay";
 };
 
+&gpio5 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_ctrl_sleep_moci>;
+};
+
 /* Current measurement into module VCC */
 &hwmon {
 	status = "okay";
diff --git a/arch/arm64/boot/dts/freescale/imx8mm-verdin-dev.dtsi b/arch/arm64/boot/dts/freescale/imx8mm-verdin-dev.dtsi
index 3c4b8ca125e3..95b7c9a03a23 100644
--- a/arch/arm64/boot/dts/freescale/imx8mm-verdin-dev.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mm-verdin-dev.dtsi
@@ -78,6 +78,11 @@ &i2c3 {
 	status = "okay";
 };
 
+&gpio5 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_ctrl_sleep_moci>;
+};
+
 &gpio_expander_21 {
 	status = "okay";
 };
diff --git a/arch/arm64/boot/dts/freescale/imx8mm-verdin-yavia.dtsi b/arch/arm64/boot/dts/freescale/imx8mm-verdin-yavia.dtsi
index 1e28c78e381f..763f069e8405 100644
--- a/arch/arm64/boot/dts/freescale/imx8mm-verdin-yavia.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mm-verdin-yavia.dtsi
@@ -81,6 +81,11 @@ &gpio3 {
 	pinctrl-0 = <&pinctrl_gpios_ext_yavia>;
 };
 
+&gpio5 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_ctrl_sleep_moci>;
+};
+
 &hwmon_temp {
 	status = "okay";
 };
diff --git a/arch/arm64/boot/dts/freescale/imx8mm-verdin.dtsi b/arch/arm64/boot/dts/freescale/imx8mm-verdin.dtsi
index 6f0811587142..4768b05fd765 100644
--- a/arch/arm64/boot/dts/freescale/imx8mm-verdin.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mm-verdin.dtsi
@@ -110,6 +110,22 @@ reg_ethphy: regulator-ethphy {
 		startup-delay-us = <200000>;
 	};
 
+	/*
+	 * By default we enable CTRL_SLEEP_MOCI#, this is required to have
+	 * peripherals on the carrier board powered.
+	 * If more granularity or power saving is required this can be disabled
+	 * in the carrier board device tree files.
+	 */
+	reg_force_sleep_moci: regulator-force-sleep-moci {
+		compatible = "regulator-fixed";
+		enable-active-high;
+		/* Verdin CTRL_SLEEP_MOCI# (SODIMM 256) */
+		gpio = <&gpio5 1 GPIO_ACTIVE_HIGH>;
+		regulator-always-on;
+		regulator-boot-on;
+		regulator-name = "CTRL_SLEEP_MOCI#";
+	};
+
 	reg_usb_otg1_vbus: regulator-usb-otg1 {
 		compatible = "regulator-fixed";
 		enable-active-high;
@@ -333,16 +349,6 @@ &gpio5 {
 			  "SODIMM_212",
 			  "SODIMM_151",
 			  "SODIMM_153";
-
-	ctrl-sleep-moci-hog {
-		gpio-hog;
-		/* Verdin CTRL_SLEEP_MOCI# (SODIMM 256) */
-		gpios = <1 GPIO_ACTIVE_HIGH>;
-		line-name = "CTRL_SLEEP_MOCI#";
-		output-high;
-		pinctrl-names = "default";
-		pinctrl-0 = <&pinctrl_ctrl_sleep_moci>;
-	};
 };
 
 /* On-module I2C */
-- 
2.40.1


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Re: [PATCH v1 3/4] arm64: dts: freescale: imx8mm-verdin: replace sleep-moci hog with regulator

[Francesco Dolcini]

On Fri, Apr 05, 2024 at 06:07:19PM +0200, Stefan Eichenberger wrote:
> From: Stefan Eichenberger <stefan.eichenberger@toradex.com>
> 
> The Verdin family has a signal called sleep-moci which can be used to
> turn off peripherals on the carrier board when the SoM goes into
> suspend. So far we have hogged this signal, which means the peripherals
> are always on and it is not possible to add peripherals that depend on
> the sleep-moci to be on. With this change, we replace the hog with a
> regulator so that peripherals can add their own regulators that use the
> same gpio. Carrier boards that allow peripherals to be powered off in
> suspend can disable this regulator and implement their own regulator to
> control the sleep-moci.
> 
> Signed-off-by: Stefan Eichenberger <stefan.eichenberger@toradex.com>

Reviewed-by: Francesco Dolcini <francesco.dolcini@toradex.com>


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[PATCH v1 4/4] arm64: dts: freescale: imx8mm-verdin-dahlia: support sleep-moci

[Stefan Eichenberger]

From: Stefan Eichenberger <stefan.eichenberger@toradex.com>

Previously, we had the sleep-moci pin set to always on. However, the
Dahlia carrier board supports disabling the sleep-moci when the system
is suspended to power down peripherals that support it. This reduces
overall power consumption. This commit adds support for this feature by
disabling the reg_force_sleep_moci regulator and adding two new
regulators for the USB hub and PCIe that can be turned off when the
system is suspended.

Signed-off-by: Stefan Eichenberger <stefan.eichenberger@toradex.com>
---
 .../dts/freescale/imx8mm-verdin-dahlia.dtsi   | 33 +++++++++++++++++++
 1 file changed, 33 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/imx8mm-verdin-dahlia.dtsi b/arch/arm64/boot/dts/freescale/imx8mm-verdin-dahlia.dtsi
index b64dac4f29c2..393fc9e20423 100644
--- a/arch/arm64/boot/dts/freescale/imx8mm-verdin-dahlia.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mm-verdin-dahlia.dtsi
@@ -32,6 +32,25 @@ simple-audio-card,cpu {
 			sound-dai = <&sai2>;
 		};
 	};
+
+	reg_usb_hub: regulator-usb-hub {
+		compatible = "regulator-fixed";
+		enable-active-high;
+		/* Verdin CTRL_SLEEP_MOCI# (SODIMM 256) */
+		gpio = <&gpio5 1 GPIO_ACTIVE_HIGH>;
+		regulator-boot-on;
+		regulator-name = "HUB_PWR_EN";
+	};
+
+	reg_pcie: regulator-pcie {
+		compatible = "regulator-fixed";
+		enable-active-high;
+		/* Verdin CTRL_SLEEP_MOCI# (SODIMM 256) */
+		gpio = <&gpio5 1 GPIO_ACTIVE_HIGH>;
+		regulator-boot-on;
+		regulator-name = "PCIE_1_PWR_EN";
+		startup-delay-us = <100000>;
+	};
 };
 
 /* Verdin SPI_1 */
@@ -98,6 +117,7 @@ wm8904_1a: audio-codec@1a {
 
 /* Verdin PCIE_1 */
 &pcie0 {
+	vpcie-supply = <&reg_pcie>;
 	status = "okay";
 };
 
@@ -120,6 +140,11 @@ &pwm3 {
 	status = "okay";
 };
 
+/* We support turning off sleep moci on Dahlia */
+&reg_force_sleep_moci {
+	status = "disabled";
+};
+
 /* Verdin I2S_1 */
 &sai2 {
 	status = "okay";
@@ -148,8 +173,16 @@ &usbotg1 {
 
 /* Verdin USB_2 */
 &usbotg2 {
+	#address-cells = <1>;
+	#size-cells = <0>;
 	disable-over-current;
 	status = "okay";
+
+	usb-hub@1 {
+		compatible = "usb424,2744";
+		reg = <1>;
+		vdd-supply = <&reg_usb_hub>;
+	};
 };
 
 /* Verdin SD_1 */
-- 
2.40.1


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Re: [PATCH v1 4/4] arm64: dts: freescale: imx8mm-verdin-dahlia: support sleep-moci

[Francesco Dolcini]

On Fri, Apr 05, 2024 at 06:07:20PM +0200, Stefan Eichenberger wrote:
> From: Stefan Eichenberger <stefan.eichenberger@toradex.com>
> 
> Previously, we had the sleep-moci pin set to always on. However, the
> Dahlia carrier board supports disabling the sleep-moci when the system
> is suspended to power down peripherals that support it. This reduces
> overall power consumption. This commit adds support for this feature by
> disabling the reg_force_sleep_moci regulator and adding two new
> regulators for the USB hub and PCIe that can be turned off when the
> system is suspended.
> 
> Signed-off-by: Stefan Eichenberger <stefan.eichenberger@toradex.com>

Reviewed-by: Francesco Dolcini <francesco.dolcini@toradex.com>


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Re: [PATCH v1 0/4] arm64: dts: freescale: verdin-imx8mm/imx8mp: add sleep-moci support

[Shawn Guo]

On Fri, Apr 05, 2024 at 06:07:16PM +0200, Stefan Eichenberger wrote:
> From: Stefan Eichenberger <stefan.eichenberger@toradex.com>
> 
> This patch series adds support for sleep-moci to the Verdin iMX8MM and
> iMX8MP in combination with the Dahlia carrier board. sleep-moci is a
> GPIO that allows the system on module to turn off regulators that are
> not needed in suspend mode on the carrier board.
> 
> Stefan Eichenberger (4):
>   arm64: dts: freescale: imx8mp-verdin: replace sleep-moci hog with
>     regulator
>   arm64: dts: freescale: imx8mp-verdin-dahlia: support sleep-moci
>   arm64: dts: freescale: imx8mm-verdin: replace sleep-moci hog with
>     regulator
>   arm64: dts: freescale: imx8mm-verdin-dahlia: support sleep-moci

Applied all, thanks!


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