From: Judith Mendez <jm@ti.com>
To: Judith Mendez <jm@ti.com>, Nishanth Menon <nm@ti.com>,
Vignesh Raghavendra <vigneshr@ti.com>
Cc: Tero Kristo <kristo@kernel.org>, Rob Herring <robh@kernel.org>,
"Krzysztof Kozlowski" <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>,
<linux-arm-kernel@lists.infradead.org>,
<devicetree@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
Moteen Shah <m-shah@ti.com>
Subject: [PATCH 4/8] arm64: dts: ti: k3-am62l-evm: Remove unnecessary internal pullups for MMC0
Date: Wed, 29 Jul 2026 14:59:54 -0500 [thread overview]
Message-ID: <20260729195958.671147-5-jm@ti.com> (raw)
In-Reply-To: <20260729195958.671147-1-jm@ti.com>
AM62L EVM has external pullups on MMC0 CMD and D0 pins [0]. Remove
internal pullups considering:
- Internal pullups are not required, without internal pullups, RDAT and
RCMD values of 47K are within spec
- having both pullups (stronger pull) results in unnecessary power
consumption
[0] https://www.ti.com/lit/zip/SPRCAL6
Signed-off-by: Judith Mendez <jm@ti.com>
---
arch/arm64/boot/dts/ti/k3-am62l3-evm.dts | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/arm64/boot/dts/ti/k3-am62l3-evm.dts b/arch/arm64/boot/dts/ti/k3-am62l3-evm.dts
index 84a0cfaaf196a..964387eb51788 100644
--- a/arch/arm64/boot/dts/ti/k3-am62l3-evm.dts
+++ b/arch/arm64/boot/dts/ti/k3-am62l3-evm.dts
@@ -253,9 +253,9 @@ AM62LX_IOPAD(0x01e0, PIN_INPUT_PULLUP, 0) /* (D8) I2C2_SDA */
mmc0_pins_default: mmc0-default-pins {
pinctrl-single,pins = <
- AM62LX_IOPAD(0x0214, PIN_INPUT_PULLUP, 0) /* (D2) MMC0_CMD */
+ AM62LX_IOPAD(0x0214, PIN_INPUT, 0) /* (D2) MMC0_CMD */
AM62LX_IOPAD(0x020c, PIN_OUTPUT, 0) /* (B2) MMC0_CLK */
- AM62LX_IOPAD(0x0208, PIN_INPUT_PULLUP, 0) /* (D3) MMC0_DAT0 */
+ AM62LX_IOPAD(0x0208, PIN_INPUT, 0) /* (D3) MMC0_DAT0 */
AM62LX_IOPAD(0x0204, PIN_INPUT_PULLUP, 0) /* (D4) MMC0_DAT1 */
AM62LX_IOPAD(0x0200, PIN_INPUT_PULLUP, 0) /* (C1) MMC0_DAT2 */
AM62LX_IOPAD(0x01fc, PIN_INPUT_PULLUP, 0) /* (C2) MMC0_DAT3 */
--
2.54.0
next prev parent reply other threads:[~2026-07-29 20:00 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-07-29 19:59 [PATCH 0/8] MMC pinmux configuration fixes Judith Mendez
2026-07-29 19:59 ` [PATCH 1/8] arm64: dts: ti: k3-am62a: Fix MMC0_CLK register address Judith Mendez
2026-07-29 19:59 ` [PATCH 2/8] arm64: dts: ti: k3-am62a: Set MMC clock pins as OUTPUT Judith Mendez
2026-07-29 19:59 ` [PATCH 3/8] arm64: dts: ti: k3-am62: " Judith Mendez
2026-07-29 19:59 ` Judith Mendez [this message]
2026-07-29 19:59 ` [PATCH 5/8] arm64: dts: ti: k3-am64: Enable IO expander interrupt Judith Mendez
2026-07-29 19:59 ` [PATCH 6/8] arm64: dts: ti: k3-am64: Let MMC1 clock loopback use hardware default Judith Mendez
2026-07-29 19:59 ` [PATCH 7/8] arm64: dts: ti: k3-am64-sk: Disable MMC1 internal pulls Judith Mendez
2026-07-29 19:59 ` [PATCH 8/8] arm64: dts: ti: k3-am642-evm: Remove unnecessary internal pullups for MMC1 Judith Mendez
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