Commit Graph

1396740 Commits

Author SHA1 Message Date
Stefano Radaelli
5651eff270 arm64: dts: freescale: imx93-var-som: Add support for ADS7846 touchscreen
The VAR-SOM-MX93 integrates an ADS7846 resistive touchscreen controller.
The controller is physically located on the SOM, and its signals are
routed to the SOM pins, allowing carrier boards to make use of it.

This patch adds the ADS7846 node and the appropriate SPI controller.

Signed-off-by: Stefano Radaelli <stefano.radaelli21@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2025-11-16 18:01:30 +08:00
Stefano Radaelli
c815711e27 arm64: dts: freescale: imx93-var-som: Add support for WM8904 audio codec
The VAR-SOM-MX93 can integrate the WM8904, a high-performance
ultra-low-power stereo codec optimized for portable audio applications.

This patch adds the WM8904 device to the appropriate I2C bus, enables
the SAI peripheral, and introduces the sound node to expose the
sound card to the system.

Signed-off-by: Stefano Radaelli <stefano.radaelli21@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2025-11-16 18:01:30 +08:00
Stefano Radaelli
2e2a8aa9fc arm64: dts: freescale: imx93-var-som: Add PMIC support
The VAR-SOM-MX93 features Dual Freescale/NXP PCA9541 chip as a Power
Management Integrated circuit (PMIC).
The PMIC is programmable via the I2C interface and its associated
register map, and this patch adds its support.

Signed-off-by: Stefano Radaelli <stefano.radaelli21@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2025-11-16 18:01:30 +08:00
Stefano Radaelli
5d0c788263 arm64: dts: freescale: imx93-var-som: Add WiFi and Bluetooth support
Add device tree nodes for the WiFi and Bluetooth module mounted on the
VAR-SOM-MX93. The module can be based on either the NXP IW612 or IW611
chipset, depending on the configuration chosen by the customer.

Regardless of the chipset used, WiFi communicates over SDIO and Bluetooth
over UART.

Signed-off-by: Stefano Radaelli <stefano.radaelli21@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2025-11-16 18:01:30 +08:00
Frank Li
d59ae05e3d arm64: dts: imx8qxp-mek: change space with tab
Change space with tab to align with code style.

Signed-off-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2025-11-16 17:57:32 +08:00
Sherry Sun
5d82ec7472 arm64: dts: imx8qxp-mek: Add lpuart1 to support the M.2 PCIE9098 bluetooth
Add the lpuart1 dts node to support the PCIE9098 bluetooth on M.2
connector.

Signed-off-by: Sherry Sun <sherry.sun@nxp.com>
Signed-off-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2025-11-16 17:57:32 +08:00
Joy Zou
b85104933a arm64: dts: imx8: add edma error interrupt support
Add edma error interrupt for i.MX8QM, i.MX8QXP and i.MX8DXL.

Signed-off-by: Joy Zou <joy.zou@nxp.com>
Signed-off-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2025-11-16 17:57:32 +08:00
Frank Li
0e2dbdcfad arm64: dts: imx8qxp-mek: add fec2 support
Add fec2 and related nodes.

Signed-off-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2025-11-16 17:57:32 +08:00
Frank Li
f4dcaab01b arm64: dts: imx8qxp-mek: add phandle ocotp mac-address for fec
Add phandle to the OCOTP mac-address nodes so the FEC can obtain a fixed
MAC address specific to each board.

Signed-off-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2025-11-16 17:57:32 +08:00
Frank Li
339cd3056b arm64: dts: imx8qxp-mek: add flexspi and flash
Add flexspi and flash node.

Signed-off-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2025-11-16 17:57:32 +08:00
Frank Li
00f69e5f6d arm64: dts: imx8qxp-mek: update usdhc1 clock to 400Mhz
Update usdhc1 clock to 400Mhz to support eMMC HS400.

Signed-off-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2025-11-16 17:57:32 +08:00
Frank Li
1c1e81ef39 arm64: dts: imx8qxp-mek: add state_100mhz and state_200mhz for usdhc
default, state_100mhz and state_200mhz use the same settings. But current
driver use these to indicate if sd3.0 support.

Add SD gpio pin group (Reset, CD, WP) for usdhc2.

Signed-off-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2025-11-16 17:57:32 +08:00
Frank Li
6f90786d73 arm64: dts: imx8qxp: add wakeup source for power-key
Add wakeup source property for power-key.

Signed-off-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2025-11-16 17:57:31 +08:00
Frank Li
a29a5a5596 arm64: dts: imx8qxp: add MAC address in ocotp
Add MAC address nodes in ocotp.

Signed-off-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2025-11-16 17:56:55 +08:00
Frank Li
05a14dc3f6 arm64: dts: imx8qm-mek: replace space with tab
Replace space with tab.

Signed-off-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2025-11-16 17:46:12 +08:00
Frank Li
9c70313efe arm64: dts: imx8qm-mek: add usbotg1 and related nodes
Add usbotg1 and related nodes.

Signed-off-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2025-11-16 17:45:53 +08:00
Frank Li
5c9f27cd7e arm64: dts: imx8qm-mek: add pmic thermal-zones
Add pmic thermal-zones.

Signed-off-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2025-11-16 17:45:53 +08:00
Frank Li
70051810d0 arm64: dts: imx8qm: add label thermal_zones
Add label thermal_zones to prepare add pmic thermal zones.

Signed-off-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2025-11-16 17:45:53 +08:00
Frank Li
a8eebe6195 arm64: dts: imx8qm-mek: add lpuart1 and bluetooth node
Add lpuart1 and bluetooth support.

Signed-off-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2025-11-16 17:45:53 +08:00
Frank Li
64b60a7280 arm64: dts: imx8qm-mek: assign double SD bus frequency for usdhc1
Assign double SD bus frequency to support SDR104 mode, where the operating
clock runs at 208 MHz.

Signed-off-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2025-11-16 17:45:52 +08:00
Frank Li
2984af7932 arm64: dts: imx8qm-mek: add state_100mhz and state_200mhz for usdhc
default, state_100mhz and state_200mhz use the same settings. But current
driver use these to indicate if sd3.0 support.

Signed-off-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2025-11-16 17:45:52 +08:00
Primoz Fiser
09b33db32e arm64: dts: freescale: imx93-phyboard-nash: Add pwm-fan overlay
Add overlay to support PWM fan on the phyBOARD-Nash-i.MX93 board. Fan
can be connected to the FAN (X48) connector on the board and will be
controlled according to the following CPU temperature trips table:

 - bellow 50 degrees - fan is off (<1% duty cycle)
 - between 50 and 58 degrees - low fan speed (~35% duty cycle)
 - between 58 and 65 degrees - fan medium speed (~60% duty cycle)
 - above 65 degrees - fan at full speed (>99% duty cycle)

The output frequency of PWM signal is set to 25 kHz.

Signed-off-by: Primoz Fiser <primoz.fiser@norik.com>
Reviewed-by: Alberto Merciai <alb3rt0.m3rciai@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2025-11-16 17:41:18 +08:00
Primoz Fiser
af21bfd1f7 arm64: dts: freescale: imx93-phyboard-nash: Add jtag overlay
Add overlay to enable JTAG pins on the board's JTAG (X41) connector.

Signed-off-by: Primoz Fiser <primoz.fiser@norik.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2025-11-16 17:41:18 +08:00
Teresa Remmet
3b0bf06595 arm64: dts: imx8mm-phyboard-polis-peb-av-10: Fix audio codec reset pin ctl
Enable internal pull up of the active low audio codec reset pin.
Otherwise the audio codec does not reset properly and is not working.

Signed-off-by: Teresa Remmet <t.remmet@phytec.de>
Signed-off-by: Jan Remmet <j.remmet@phytec.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2025-11-16 17:36:53 +08:00
Jan Remmet
f7a77fb14c arm64: dts: imx8mm-phyboard-polis-peb-av-10-ph128800t006
Add support for powertip,ph128800t006-zhc01 connected via peb-av-10

Signed-off-by: Jan Remmet <j.remmet@phytec.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2025-11-16 17:36:53 +08:00
Jan Remmet
4f03fd6d95 arm64: dts: imx8mm-phyboard-polis-peb-av-10: split display configuration
The PEB-AV-10 board can be used with different displays or in audio-only
mode.
Split the device tree overlays to reflect these use cases. To use the
board with the EDT ETML1010G3DRA display, the overlay
imx8mm-phyboard-polis-peb-av-10-etml1010g3dra.dtbo must now be used
instead of imx8mm-phyboard-polis-peb-av-10.dtbo.

Signed-off-by: Jan Remmet <j.remmet@phytec.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2025-11-16 17:36:53 +08:00
Jan Remmet
c277c95959 arm64: dts: imx8mm-phyboard-polis-peb-av-10: reorder properties to match dts coding style
Sort properties. Rename regulator label to match schematics.

Signed-off-by: Jan Remmet <j.remmet@phytec.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2025-11-16 17:36:52 +08:00
Jan Remmet
4b73a1bd86 arm64: dts: imx8mm-phyboard-polis: move mipi bridge to som
sn65dsi83 is mounted on som. Add the static configuration there.
So it can be used by other boards too.
Use mipi_dsi_out from imx8mm.dtsi directly.

Signed-off-by: Jan Remmet <j.remmet@phytec.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2025-11-16 17:36:52 +08:00
Jan Remmet
aab882780a arm64: dts: imx8mm-phyboard-polis: Use GPL-2.0-or-later OR MIT
Update license and remove individual authorship.

Signed-off-by: Jan Remmet <j.remmet@phytec.de>
Acked-by: Teresa Remmet <t.remmet@phytec.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2025-11-16 17:36:52 +08:00
Primoz Fiser
33583fa58e arm64: dts: freescale: Add phyBOARD-Segin-i.MX91 support
Add initial support for the PHYTEC phyBOARD-Segin-i.MX91 board [1] based
on the PHYTEC phyCORE-i.MX91 SoM (System-on-Module) [2].

Supported features:
* Audio
* CAN
* eMMC
* Ethernet
* I2C
* RTC
* SD-Card
* UART
* USB

For more details see the product pages for the development board and the
SoM:

[1] https://www.phytec.eu/en/produkte/development-kits/phyboard-segin-kit/
[2] https://www.phytec.eu/en/produkte/system-on-modules/phycore-imx-91-93/

Signed-off-by: Primoz Fiser <primoz.fiser@norik.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2025-11-16 17:35:26 +08:00
Stefan Eichenberger
4c9cf0b3f1 arm64: dts: imx8-apalis: use startup-delay-us for wifi regulator
We used regulator-settling-time-us for the wifi regulator which is
wrong for regulator-fixed. We have to use startup-delay-us instead.

Signed-off-by: Stefan Eichenberger <stefan.eichenberger@toradex.com>
Signed-off-by: Max Krummenacher <max.krummenacher@toradex.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2025-11-16 11:55:56 +08:00
Stefan Eichenberger
aa6f6799f9 arm64: dts: imx8-apalis: rename wifi regulator
Rename the wifi regulator to what is the net name in the schematic.

Signed-off-by: Stefan Eichenberger <stefan.eichenberger@toradex.com>
Signed-off-by: Max Krummenacher <max.krummenacher@toradex.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2025-11-16 11:55:56 +08:00
Max Krummenacher
4a59771555 arm64: dts: imx8-apalis: specify adc reference voltage regulator
This sets in_voltage_scale to calculate the measured voltage from the
raw digital value of the ADC.

Signed-off-by: Max Krummenacher <max.krummenacher@toradex.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2025-11-16 11:55:56 +08:00
Max Krummenacher
a2c79d55bd arm64: dts: imx8-apalis: add thermal nodes
Add the thermal-zones and cooling-maps nodes for the PMIC device.

Signed-off-by: Max Krummenacher <max.krummenacher@toradex.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2025-11-16 11:55:56 +08:00
Max Krummenacher
53948d7f54 arm64: dts: imx8-apalis: cleanup todo
Functionality has been added without removing the associated TODO
comments.
Clean that up by removing TODOs no longer applicable.

Signed-off-by: Max Krummenacher <max.krummenacher@toradex.com>
Reviewed-by: Daniel Baluta <daniel.baluta@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2025-11-16 11:55:56 +08:00
Shengjiu Wang
b21f87b832 arm64: dts: imx8mp-evk: enable hdmi_pai device
Enable hdmi_pai device.

Aud2htx module, hdmi_pai and hdmi controller compose the hdmi audio
pipeline.

Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Tested-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2025-11-16 11:48:36 +08:00
Shengjiu Wang
4677a3f84c arm64: dts: imx8mp: Add hdmi parallel audio interface node
The HDMI TX Parallel Audio Interface (HTX_PAI) is a bridge between the
Audio Subsystem to the HDMI TX Controller.

Shrink register map size of hdmi_pvi to avoid overlapped hdmi_pai device.

Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Tested-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2025-11-16 11:48:25 +08:00
Richard Zhu
db82f6cda5 arm64: dts: imx95-19x19-evk: Add vpcie3v3aux regulator for PCIe[0,1]
Refer to PCI Express M.2 Specification r5.1 sec3.1.1 Power Sources and
Grounds.

PCI Express M.2 Socket 1 utilizes a 3.3 V power source. The voltage
source, 3.3 V, is expected to be available during the system’s
stand-by/suspend state to support wake event processing on the
communications card.

Add vpcie3v3aux regulator to let this 3.3 V power source always on for
PCIe M.2 Key E connector(PCIe0) on i.MX95 19x19 EVK board.

PCIe1 uses one standard PCIe slot connector, but combines the +3.3v and
+3.3Vaux into a same 3.3v power source, and intends to let it always on.
Add vpcie3v3aux regulator to let this 3.3 V power source always on for
PCIe1 on i.MX95 19x19 EVK board too.

Signed-off-by: Richard Zhu <hongxing.zhu@nxp.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2025-11-12 09:57:54 +08:00
Richard Zhu
4737f7c742 arm64: dts: imx95-15x15-evk: Add vpcie3v3aux regulator for PCIe M.2 connector
Refer to PCI Express M.2 Specification r5.1 sec3.1.1 Power Sources and
Grounds.

PCI Express M.2 Socket 1 utilizes a 3.3 V power source. The voltage
source, 3.3 V, is expected to be available during the system’s
stand-by/suspend state to support wake event processing on the
communications card.

Add vpcie3v3aux regulator to let this 3.3 V power source always on for
PCIe M.2 Key E connector on i.MX95 15x15 EVK board.

Signed-off-by: Richard Zhu <hongxing.zhu@nxp.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2025-11-12 09:57:52 +08:00
Richard Zhu
b64620022d arm64: dts: imx8qxp-mek: Add vpcie3v3aux regulator for PCIe M.2 connector
Refer to PCI Express M.2 Specification r5.1 sec3.1.1 Power Sources and
Grounds.

PCI Express M.2 Socket 1 utilizes a 3.3 V power source. The voltage
source, 3.3 V, is expected to be available during the system’s
stand-by/suspend state to support wake event processing on the
communications card.

Add vpcie3v3aux regulator to let this 3.3 V power source always on for
PCIe M.2 Key E connector on i.MX8QXP MEK board.

Signed-off-by: Richard Zhu <hongxing.zhu@nxp.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2025-11-12 09:57:49 +08:00
Richard Zhu
f4303fa035 arm64: dts: imx8qm-mek: Add vpcie3v3aux regulator for PCIe M.2 connector
Refer to PCI Express M.2 Specification r5.1 sec3.1.1 Power Sources and
Grounds.

PCI Express M.2 Socket 1 utilizes a 3.3 V power source. The voltage
source, 3.3 V, is expected to be available during the system’s
stand-by/suspend state to support wake event processing on the
communications card.

Add vpcie3v3aux regulator to let this 3.3 V power source always on for
PCIe M.2 Key E connector on i.MX8QM MEK board.

Signed-off-by: Richard Zhu <hongxing.zhu@nxp.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2025-11-12 09:57:47 +08:00
Richard Zhu
6fa16090ef arm64: dts: imx8mq-evk: Add vpcie3v3aux regulator for PCIe M.2 connector
Refer to PCI Express M.2 Specification r5.1 sec3.1.1 Power Sources and
Grounds.

PCI Express M.2 Socket 1 utilizes a 3.3 V power source. The voltage
source, 3.3 V, is expected to be available during the system’s
stand-by/suspend state to support wake event processing on the
communications card.

Add vpcie3v3aux regulator to let this 3.3 V power source always on for
PCIe M.2 Key E connector on i.MX8MQ EVK board.

Signed-off-by: Richard Zhu <hongxing.zhu@nxp.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2025-11-12 09:57:44 +08:00
Richard Zhu
caf08e2d49 arm64: dts: imx8mp-evk: Add vpcie3v3aux regulator for PCIe M.2 connector
Refer to PCI Express M.2 Specification r5.1 sec3.1.1 Power Sources and
Grounds.

PCI Express M.2 Socket 1 utilizes a 3.3 V power source. The voltage
source, 3.3 V, is expected to be available during the system’s
stand-by/suspend state to support wake event processing on the
communications card.

Add vpcie3v3aux regulator to let this 3.3 V power source always on for
PCIe M.2 Key E connector on i.MX8MP EVK board.

Signed-off-by: Richard Zhu <hongxing.zhu@nxp.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2025-11-12 09:57:41 +08:00
Richard Zhu
55a79e599a arm64: dts: imx8dxl-evk: Add vpcie3v3aux regulator for PCIe M.2 connector
Refer to PCI Express M.2 Specification r5.1 sec3.1.1 Power Sources and
Grounds.

PCI Express M.2 Socket 1 utilizes a 3.3 V power source. The voltage
source, 3.3 V, is expected to be available during the system’s
stand-by/suspend state to support wake event processing on the
communications card.

Add vpcie3v3aux regulator to let this 3.3 V power source always on for
PCIe M.2 Key E connector on i.MX8DXL EVK board.

Signed-off-by: Richard Zhu <hongxing.zhu@nxp.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2025-11-12 09:57:26 +08:00
Richard Zhu
1a79e70e9d arm64: dts: imx8qxp-mek: Add supports-clkreq property to PCIe M.2 port
According to PCIe r6.1, sec 5.5.1.

The following rules define how the L1.1 and L1.2 substates are entered:
Both the Upstream and Downstream Ports must monitor the logical state of
the CLKREQ# signal.

Typical implement is using open drain, which connect RC's clkreq# to
EP's clkreq# together and pull up clkreq#.

imx8qxp-mek matches this requirement, so add supports-clkreq to allow
PCIe device enter ASPM L1 Sub-State.

Signed-off-by: Richard Zhu <hongxing.zhu@nxp.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2025-11-12 09:51:29 +08:00
Richard Zhu
44f9bcc943 arm64: dts: imx8qm-mek: Add supports-clkreq property to PCIe M.2 port
According to PCIe r6.1, sec 5.5.1.

The following rules define how the L1.1 and L1.2 substates are entered:
Both the Upstream and Downstream Ports must monitor the logical state of
the CLKREQ# signal.

Typical implement is using open drain, which connect RC's clkreq# to
EP's clkreq# together and pull up clkreq#.

imx8qm-mek matches this requirement, so add supports-clkreq to allow
PCIe device enter ASPM L1 Sub-State.

Signed-off-by: Richard Zhu <hongxing.zhu@nxp.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2025-11-12 09:51:29 +08:00
Richard Zhu
053ee55576 arm64: dts: imx8mq-evk: Add supports-clkreq property to PCIe M.2 port
According to PCIe r6.1, sec 5.5.1.

The following rules define how the L1.1 and L1.2 substates are entered:
Both the Upstream and Downstream Ports must monitor the logical state of
the CLKREQ# signal.

Typical implement is using open drain, which connect RC's clkreq# to
EP's clkreq# together and pull up clkreq#.

imx8mq-evk matches this requirement, so add supports-clkreq to allow
PCIe device enter ASPM L1 Sub-State.

Signed-off-by: Richard Zhu <hongxing.zhu@nxp.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2025-11-12 09:51:28 +08:00
Richard Zhu
45b68efd9b arm64: dts: imx8mp-evk: Add supports-clkreq property to PCIe M.2 port
According to PCIe r6.1, sec 5.5.1.

The following rules define how the L1.1 and L1.2 substates are entered:
Both the Upstream and Downstream Ports must monitor the logical state of
the CLKREQ# signal.

Typical implement is using open drain, which connect RC's clkreq# to
EP's clkreq# together and pull up clkreq#.

imx8mp-evk matches this requirement, so add supports-clkreq to allow
PCIe device enter ASPM L1 Sub-State.

Signed-off-by: Richard Zhu <hongxing.zhu@nxp.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2025-11-12 09:51:28 +08:00
Richard Zhu
798825c11e arm64: dts: imx8mm-evk: Add supports-clkreq property to PCIe M.2 port
According to PCIe r6.1, sec 5.5.1.

The following rules define how the L1.1 and L1.2 substates are entered:
Both the Upstream and Downstream Ports must monitor the logical state of
the CLKREQ# signal.

Typical implement is using open drain, which connect RC's clkreq# to
EP's clkreq# together and pull up clkreq#.

imx8mm-evk matches this requirement, so add supports-clkreq to allow
PCIe device enter ASPM L1 Sub-State.

Signed-off-by: Richard Zhu <hongxing.zhu@nxp.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2025-11-12 09:51:28 +08:00
Richard Zhu
756d0ef76e arm64: dts: imx95-19x19-evk: Add supports-clkreq property to PCIe M.2 port
According to PCIe r6.1, sec 5.5.1.

The following rules define how the L1.1 and L1.2 substates are entered:
Both the Upstream and Downstream Ports must monitor the logical state of
the CLKREQ# signal.

Typical implement is using open drain, which connect RC's clkreq# to
EP's clkreq# together and pull up clkreq#.

imx95-19x19-evk matches this requirement, so add supports-clkreq to
allow PCIe device enter ASPM L1 Sub-State.

Signed-off-by: Richard Zhu <hongxing.zhu@nxp.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2025-11-12 09:51:28 +08:00