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authorPali Rohár <pali@kernel.org>2021-06-28 17:12:29 +0200
committerGregory CLEMENT <gregory.clement@bootlin.com>2021-07-23 14:40:11 +0200
commitee7ab3f263f8131722cff3871b9618b1e7478f07 (patch)
tree4c679457af66705dd84172b9de36b88efc239a51 /arch
parentarm64: dts: armada-3720-turris-mox: fixed indices for the SDHC controllers (diff)
downloadlinux-ee7ab3f263f8131722cff3871b9618b1e7478f07.tar.xz
linux-ee7ab3f263f8131722cff3871b9618b1e7478f07.zip
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')
-rw-r--r--arch/arm64/boot/dts/marvell/armada-3720-turris-mox.dts1
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 {