[PATCH v3 4/4] arm64: dts: ti: k3-am62l-evm: Remove unnecessary internal pullups for MMC0
Judith Mendez <[email protected]>
| Newsgroups | gmane.linux.drivers.devicetree,gmane.linux.ports.arm.kernel,gmane.linux.kernel |
|---|---|
| Message-ID | <[email protected]> |
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
Fixes: 00fb4c73b67d ("arm64: dts: ti: k3-am62l: add initial reference board file")
Cc: <[email protected]>
Signed-off-by: Judith Mendez <[email protected]>
---
Changes since v2:
- Add patch
---
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