[PATCH v2 3/4] arm64: dts: ti: k3-am62a: Set MMC clock pins as OUTPUT

Judith Mendez <[email protected]> Tue, 4 Aug 2026 19:48:20 -0500
Newsgroups gmane.linux.drivers.devicetree,gmane.linux.ports.arm.kernel,gmane.linux.kernel
Message-ID <[email protected]>
MMC clock pins must be configured as OUTPUT-only per TRM [0] with
receiver disabled (RXACTIVE bit = 0). Change MMC CLK pins from
PIN_INPUT to PIN_OUTPUT to match documentation.

[0] https://www.ti.com/lit/pdf/spruj16 Rev. C: Table 12-257. MMCSDi I/O Signals

Signed-off-by: Judith Mendez <[email protected]>
---
 arch/arm64/boot/dts/ti/k3-am62a7-sk.dts | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts b/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts
index b04636cab71c7..e63c5200a2370 100644
--- a/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts
+++ b/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts
@@ -328,7 +328,7 @@ AM62AX_IOPAD(0x0b4, PIN_INPUT_PULLUP, 1) /* (K24) GPMC0_CSn3.I2C2_SDA */
 	main_mmc0_pins_default: main-mmc0-default-pins {
 		pinctrl-single,pins = <
 			AM62AX_IOPAD(0x220, PIN_INPUT, 0) /* (Y3) MMC0_CMD */
-			AM62AX_IOPAD(0x218, PIN_INPUT, 0) /* (AB1) MMC0_CLK */
+			AM62AX_IOPAD(0x218, PIN_OUTPUT, 0) /* (AB1) MMC0_CLK */
 			AM62AX_IOPAD(0x214, PIN_INPUT, 0) /* (AA2) MMC0_DAT0 */
 			AM62AX_IOPAD(0x210, PIN_INPUT_PULLUP, 0) /* (AA1) MMC0_DAT1 */
 			AM62AX_IOPAD(0x20c, PIN_INPUT_PULLUP, 0) /* (AA3) MMC0_DAT2 */
@@ -344,7 +344,7 @@ AM62AX_IOPAD(0x1f8, PIN_INPUT_PULLUP, 0) /* (AC2) MMC0_DAT7 */
 	main_mmc1_pins_default: main-mmc1-default-pins {
 		pinctrl-single,pins = <
 			AM62AX_IOPAD(0x23c, PIN_INPUT, 0) /* (A21) MMC1_CMD */
-			AM62AX_IOPAD(0x234, PIN_INPUT, 0) /* (B22) MMC1_CLK */
+			AM62AX_IOPAD(0x234, PIN_OUTPUT, 0) /* (B22) MMC1_CLK */
 			AM62AX_IOPAD(0x230, PIN_INPUT, 0) /* (A22) MMC1_DAT0 */
 			AM62AX_IOPAD(0x22c, PIN_INPUT, 0) /* (B21) MMC1_DAT1 */
 			AM62AX_IOPAD(0x228, PIN_INPUT, 0) /* (C21) MMC1_DAT2 */
-- 
2.54.0