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X-OriginatorOrg: ti.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 31 Dec 2025 02:38:53.1174 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: c8b0b6ca-4df5-4c89-78ff-08de4815bcce X-MS-Exchange-CrossTenant-Id: e5b49634-450b-4709-8abb-1e2b19b982b7 X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=e5b49634-450b-4709-8abb-1e2b19b982b7;Ip=[198.47.23.195];Helo=[lewvzet201.ext.ti.com] X-MS-Exchange-CrossTenant-AuthSource: BL02EPF0001A101.namprd05.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM6PR10MB4156 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20251230_183858_359573_38AF507E X-CRM114-Status: GOOD ( 10.20 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org 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-am62a7-sk.dts | 24 ++++++++++++++++++++---- 1 file changed, 20 insertions(+), 4 deletions(-) diff --git a/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts b/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts index e99bdbc2e0cbdf858f1631096f9c2a086191bab3..85f93975fa728e3e65f5c7562e67e684cd5a4da2 100644 --- a/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts +++ b/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts @@ -274,14 +274,26 @@ AM62AX_IOPAD(0x078, PIN_OUTPUT, 1) /* (T21) GPMC0_AD15.VOUT0_DATA23 */ >; }; - main_uart0_pins_default: main-uart0-default-pins { + main_uart0_tx_pins_default: main-uart0-tx-default-pins { pinctrl-single,pins = < - AM62AX_IOPAD(0x1c8, PIN_INPUT, 0) /* (E14) UART0_RXD */ AM62AX_IOPAD(0x1cc, PIN_OUTPUT, 0) /* (D15) UART0_TXD */ >; bootph-all; }; + main_uart0_rx_pins_default: main-uart0-rx-default-pins { + pinctrl-single,pins = < + AM62AX_IOPAD(0x1c8, PIN_INPUT, 0) /* (E14) UART0_RXD */ + >; + bootph-all; + }; + + main_uart0_rx_pins_wakeup: main-uart0-rx-wakeup-pins { + pinctrl-single,pins = < + AM62AX_IOPAD(0x1c8, PIN_INPUT | PIN_WKUP_EN, 0) /* (E14) UART0_RXD */ + >; + }; + main_uart1_pins_default: main-uart1-default-pins { pinctrl-single,pins = < AM62AX_IOPAD(0x01ac, PIN_INPUT, 2) /* (B21) MCASP0_AFSR.UART1_RXD */ @@ -717,8 +729,12 @@ &main_gpio_intr { &main_uart0 { status = "okay"; - pinctrl-names = "default"; - pinctrl-0 = <&main_uart0_pins_default>; + pinctrl-names = "default", "wakeup"; + pinctrl-0 = <&main_uart0_tx_pins_default>, <&main_uart0_rx_pins_default>; + pinctrl-1 = <&main_uart0_tx_pins_default>, <&main_uart0_rx_pins_wakeup>; + wakeup-source = <&system_deep_sleep>, + <&system_mcu_only>, + <&system_standby>; bootph-all; }; -- 2.34.1