arm64: dts: ti: k3-am62p5-sk: Disable MMC1 internal pulls on data pins

AM62P SK has external 10K pullups on MMC1 DAT1-DAT3 pins [0].
Disable internal pullups on DAT1-DAT3 so that each line has a
single pullup source:
- with both pullups enabled, the effective parallel resistance on
  DAT1-3 (~8.33K) drops below the 10K minimum pullup requirement
  for data lines (per SD Physical Layer Specification)
- removing internal pullups makes DAT1-3 match DAT0 10K
  external pullup so its consistent and within spec
- both internal and external pullups enabled equals unnecessary power
  consumption

[0] https://www.ti.com/lit/zip/SPRR487

Fixes: c00504ea42c0 ("arm64: dts: ti: k3-am62p5-sk: Updates for SK EVM")
Signed-off-by: Judith Mendez <jm@ti.com>
Reviewed-by: Moteen Shah <m-shah@ti.com>
Link: https://patch.msgid.link/20260223233731.2690472-2-jm@ti.com
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>

diff --git a/arch/arm64/boot/dts/ti/k3-am62p5-sk.dts b/arch/arm64/boot/dts/ti/k3-am62p5-sk.dts
index fd323a64880970e17007ab130161dae56efd09d7..b770ed82be9d8f5827c49ed871351a6423db8026 100644 (file)
--- a/arch/arm64/boot/dts/ti/k3-am62p5-sk.dts
+++ b/arch/arm64/boot/dts/ti/k3-am62p5-sk.dts
@@ -271,9 +271,9 @@
                        AM62PX_IOPAD(0x023c, PIN_INPUT, 0) /* (H20) MMC1_CMD */
                        AM62PX_IOPAD(0x0234, PIN_OUTPUT, 0) /* (J24) MMC1_CLK */
                        AM62PX_IOPAD(0x0230, PIN_INPUT, 0) /* (H21) MMC1_DAT0 */
-                       AM62PX_IOPAD(0x022c, PIN_INPUT_PULLUP, 0) /* (H23) MMC1_DAT1 */
-                       AM62PX_IOPAD(0x0228, PIN_INPUT_PULLUP, 0) /* (H22) MMC1_DAT2 */
-                       AM62PX_IOPAD(0x0224, PIN_INPUT_PULLUP, 0) /* (H25) MMC1_DAT3 */
+                       AM62PX_IOPAD(0x022c, PIN_INPUT, 0) /* (H23) MMC1_DAT1 */
+                       AM62PX_IOPAD(0x0228, PIN_INPUT, 0) /* (H22) MMC1_DAT2 */
+                       AM62PX_IOPAD(0x0224, PIN_INPUT, 0) /* (H25) MMC1_DAT3 */
                        AM62PX_IOPAD(0x0240, PIN_INPUT, 0) /* (D23) MMC1_SDCD */
                >;
                bootph-all;