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authorJudith Mendez <jm@ti.com>2026-02-23 17:37:30 -0600
committerVignesh Raghavendra <vigneshr@ti.com>2026-03-27 07:38:35 +0530
commit02532ba56362907b6aca3e8289c4a9247ef83325 (patch)
tree4647d9126bac0726bcb1373f69d3b345ed920768 /rust/kernel/interop/git@git.tavy.me:linux-stable.git
parent6d4441be969bea89bb9702781f5dfb3a8f2a02a4 (diff)
arm64: dts: ti: k3-am62l3-evm: Disable MMC1 internal pulls on data pins
AM62L EVM has external 47K 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 (~24.2K) creates a ~2x mismatch vs DAT0 (47K external only). Removing internal pullups results in DAT1-3 matching DAT0 at 47K - 47K external alone is within the recommended range for 1.8V signaling (10K min, 50K recommended max) - both internal and external pullups enabled equals unnecessary power consumption [0] https://www.ti.com/lit/zip/SPRCAL6 Fixes: 00fb4c73b67d ("arm64: dts: ti: k3-am62l: add initial reference board file") Signed-off-by: Judith Mendez <jm@ti.com> Reviewed-by: Moteen Shah <m-shah@ti.com> Link: https://patch.msgid.link/20260223233731.2690472-3-jm@ti.com Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
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