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ramips: add AW9523 I2C GPIO expander driver

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This adds a driver for the AW9523 I2C GPIO expander.

This driver is required to make LEDs as well as buttons on the Tenbay
T-MB5EU-V01 work.

This driver already had several upstream iterations. I'm working to
push this driver to mainline.

Ref: https://patchwork.ozlabs.org/project/linux-gpio/list/?series=226287

Signed-off-by: David Bauer <mail@david-bauer.net>
This commit is contained in:
David Bauer
2021-05-07 00:35:16 +02:00
parent f033d5ad1c
commit 38db2f12d6
15 changed files with 1291 additions and 0 deletions
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1
target/linux/ramips/mt7620/config-5.10
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@@ -148,6 +148,7 @@ CONFIG_PGTABLE_LEVELS=2
CONFIG_PHYLIB=y
CONFIG_PHY_RALINK_USB=y
CONFIG_PINCTRL=y
# CONFIG_PINCTRL_AW9523 is not set
CONFIG_PINCTRL_RT2880=y
# CONFIG_PINCTRL_SINGLE is not set
CONFIG_RALINK=y