This is a note to let you know that I've just added the patch titled
ARM: dts: aspeed: Fix AST2600 quad spi group
to the 5.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
arm-dts-aspeed-fix-ast2600-quad-spi-group.patch
and it can be found in the queue-5.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 56df6cae318f1df41f3841e5d8d6fcc2ed2fd645
Author: Joel Stanley <joel@xxxxxxxxx>
Date: Tue Mar 8 10:36:31 2022 +1030
ARM: dts: aspeed: Fix AST2600 quad spi group
[ Upstream commit 2f6edb6bcb2f3f41d876e0eba2ba97f87a0296ea ]
Requesting quad mode for the FMC resulted in an error:
&fmc {
status = "okay";
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_fwqspi_default>'
[ 0.742963] aspeed-g6-pinctrl 1e6e2000.syscon:pinctrl: invalid function FWQSPID in map table

This is because the quad mode pins are a group of pins, not a function.
After applying this patch we can request the pins and the QSPI data
lines are muxed:
# cat /sys/kernel/debug/pinctrl/1e6e2000.syscon\:pinctrl-aspeed-g6-pinctrl/pinmux-pins |grep 1e620000.spi
pin 196 (AE12): device 1e620000.spi function FWSPID group FWQSPID
pin 197 (AF12): device 1e620000.spi function FWSPID group FWQSPID
pin 240 (Y1): device 1e620000.spi function FWSPID group FWQSPID
pin 241 (Y2): device 1e620000.spi function FWSPID group FWQSPID
pin 242 (Y3): device 1e620000.spi function FWSPID group FWQSPID
pin 243 (Y4): device 1e620000.spi function FWSPID group FWQSPID
Fixes: f510f04c8c83 ("ARM: dts: aspeed: Add AST2600 pinmux nodes")
Signed-off-by: Joel Stanley <joel@xxxxxxxxx>
Reviewed-by: Andrew Jeffery <andrew@xxxxxxxx>
Link: https://lore.kernel.org/r/20220304011010.974863-1-joel@xxxxxxxxx
Link: https://lore.kernel.org/r/20220304011010.974863-1-joel@xxxxxxxxx'
Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/arch/arm/boot/dts/aspeed-g6-pinctrl.dtsi b/arch/arm/boot/dts/aspeed-g6-pinctrl.dtsi
index 996e006e06c2..f310f4d3bcc7 100644
--- a/arch/arm/boot/dts/aspeed-g6-pinctrl.dtsi
+++ b/arch/arm/boot/dts/aspeed-g6-pinctrl.dtsi
@@ -118,7 +118,7 @@ pinctrl_fwspid_default: fwspid_default {
};
pinctrl_fwqspid_default: fwqspid_default {
- function = "FWQSPID";
+ function = "FWSPID";
groups = "FWQSPID";
};
