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| author | Pali Rohár <pali@kernel.org> | 2021-06-28 18:12:29 +0300 |
|---|---|---|
| committer | Gregory CLEMENT <gregory.clement@bootlin.com> | 2021-07-23 15:40:11 +0300 |
| commit | ee7ab3f263f8131722cff3871b9618b1e7478f07 (patch) | |
| tree | 4c679457af66705dd84172b9de36b88efc239a51 /arch/arm64 | |
| parent | 923f98929182dfd04e9149be839160b63a3db145 (diff) | |
| download | linux-ee7ab3f263f8131722cff3871b9618b1e7478f07.tar.xz | |
arm64: dts: armada-3720-turris-mox: remove mrvl,i2c-fast-mode
Some SFP modules are not detected when i2c-fast-mode is enabled even when
clock-frequency is already set to 100000. The I2C bus violates the timing
specifications when run in fast mode. So disable fast mode on Turris Mox.
Same change was already applied for uDPU (also Armada 3720 board with SFP)
in commit fe3ec631a77d ("arm64: dts: uDPU: remove i2c-fast-mode").
Fixes: 7109d817db2e ("arm64: dts: marvell: add DTS for Turris Mox")
Signed-off-by: Pali Rohár <pali@kernel.org>
Reviewed-by: Marek Behún <kabel@kernel.org>
Acked-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>
Diffstat (limited to 'arch/arm64')
| -rw-r--r-- | arch/arm64/boot/dts/marvell/armada-3720-turris-mox.dts | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/arm64/boot/dts/marvell/armada-3720-turris-mox.dts b/arch/arm64/boot/dts/marvell/armada-3720-turris-mox.dts index f2d7d6f071bc..a05b1ab2dd12 100644 --- a/arch/arm64/boot/dts/marvell/armada-3720-turris-mox.dts +++ b/arch/arm64/boot/dts/marvell/armada-3720-turris-mox.dts @@ -121,6 +121,7 @@ pinctrl-names = "default"; pinctrl-0 = <&i2c1_pins>; clock-frequency = <100000>; + /delete-property/ mrvl,i2c-fast-mode; status = "okay"; rtc@6f { |