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authorGregory CLEMENT <gregory.clement@free-electrons.com>2017-10-05 19:05:11 +0300
committerGregory CLEMENT <gregory.clement@free-electrons.com>2017-10-12 16:53:09 +0300
commita5f5c5bbef3f5b2fb2f095c4ae5fa6a679512878 (patch)
treeb147b835becdefc57afaf75074925b1034ecbbd9 /arch/arm64/boot/dts/marvell/armada-7040-db.dts
parent30571678d853d054d32782ae51684500a0fa3a11 (diff)
downloadlinux-a5f5c5bbef3f5b2fb2f095c4ae5fa6a679512878.tar.xz
arm64: dts: marvell: 7040-db: Document the gpio expander
Document all the GPIO of the expander based on the schematics Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Diffstat (limited to 'arch/arm64/boot/dts/marvell/armada-7040-db.dts')
-rw-r--r--arch/arm64/boot/dts/marvell/armada-7040-db.dts10
1 files changed, 10 insertions, 0 deletions
diff --git a/arch/arm64/boot/dts/marvell/armada-7040-db.dts b/arch/arm64/boot/dts/marvell/armada-7040-db.dts
index 8f3b395c786c..18a75fad1e8d 100644
--- a/arch/arm64/boot/dts/marvell/armada-7040-db.dts
+++ b/arch/arm64/boot/dts/marvell/armada-7040-db.dts
@@ -143,6 +143,16 @@
gpio-controller;
#gpio-cells = <2>;
reg = <0x21>;
+ /*
+ * IO0_0: USB3_PWR_EN0 IO1_0: USB_3_1_Dev_Detect
+ * IO0_1: USB3_PWR_EN1 IO1_1: USB2_1_current_limit
+ * IO0_2: DDR3_4_Detect IO1_2: Hcon_IO_RstN
+ * IO0_3: USB2_DEVICE_DETECT
+ * IO0_4: GPIO_0 IO1_4: SD_Status
+ * IO0_5: GPIO_1 IO1_5: LDO_5V_Enable
+ * IO0_6: IHB_5V_Enable IO1_6: PWR_EN_eMMC
+ * IO0_7: IO1_7: SDIO_Vcntrl
+ */
};
};