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X-OriginatorOrg: ti.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 31 Dec 2025 02:38:38.1085 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: fdcc6f87-d5ab-42d2-bba2-08de4815b3db X-MS-Exchange-CrossTenant-Id: e5b49634-450b-4709-8abb-1e2b19b982b7 X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=e5b49634-450b-4709-8abb-1e2b19b982b7;Ip=[198.47.23.194];Helo=[lewvzet200.ext.ti.com] X-MS-Exchange-CrossTenant-AuthSource: BL02EPF00021F6A.namprd02.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: CH0PR10MB5145 The Main UART can resume from suspend to RAM states when PIN_WKUP_EN is enabled. Add the necessary pins needed to wakeup the system. Add the system idle states that the Main UART can wakeup the system from. Signed-off-by: Kendall Willis --- arch/arm64/boot/dts/ti/k3-am62p5-sk.dts | 24 ++++++++++++++++++++---- 1 file changed, 20 insertions(+), 4 deletions(-) diff --git a/arch/arm64/boot/dts/ti/k3-am62p5-sk.dts b/arch/arm64/boot/dts/= ti/k3-am62p5-sk.dts index ef719c6334fc094f01d9e8185992f2f58320e17d..96bba65f4f16792834567324db6= f7f2bdee7bc06 100644 --- a/arch/arm64/boot/dts/ti/k3-am62p5-sk.dts +++ b/arch/arm64/boot/dts/ti/k3-am62p5-sk.dts @@ -328,14 +328,26 @@ AM62PX_IOPAD(0x0164, PIN_INPUT, 0) /* (A20) RGMII2_TX= _CTL */ bootph-all; }; =20 - main_uart0_pins_default: main-uart0-default-pins { + main_uart0_tx_pins_default: main-uart0-tx-default-pins { pinctrl-single,pins =3D < - AM62PX_IOPAD(0x1c8, PIN_INPUT, 0) /* (A22) UART0_RXD */ AM62PX_IOPAD(0x1cc, PIN_OUTPUT, 0) /* (B22) UART0_TXD */ >; bootph-all; }; =20 + main_uart0_rx_pins_default: main-uart0-rx-default-pins { + pinctrl-single,pins =3D < + AM62PX_IOPAD(0x1c8, PIN_INPUT, 0) /* (A22) UART0_RXD */ + >; + bootph-all; + }; + + main_uart0_rx_pins_wakeup: main-uart0-rx-wakeup-pins { + pinctrl-single,pins =3D < + AM62PX_IOPAD(0x1c8, PIN_INPUT | PIN_WKUP_EN, 0) /* (A22) UART0_RXD */ + >; + }; + main_uart1_pins_default: main-uart1-default-pins { pinctrl-single,pins =3D < AM62PX_IOPAD(0x0194, PIN_INPUT, 2) /* (D25) MCASP0_AXR3.UART1_CTSn */ @@ -692,8 +704,12 @@ partition@3fc0000 { }; =20 &main_uart0 { - pinctrl-names =3D "default"; - pinctrl-0 =3D <&main_uart0_pins_default>; + pinctrl-names =3D "default", "wakeup"; + pinctrl-0 =3D <&main_uart0_tx_pins_default>, <&main_uart0_rx_pins_default= >; + pinctrl-1 =3D <&main_uart0_tx_pins_default>, <&main_uart0_rx_pins_wakeup>; + wakeup-source =3D <&system_deep_sleep>, + <&system_mcu_only>, + <&system_standby>; status =3D "okay"; bootph-all; }; --=20 2.34.1