From: Jeff Kletsky <git-comm...@allycomm.com>
The GL-AR750S has an internal header for I2C.
Provide DTS definitions for the i2c-gpio driver.
The I2C drivers; kmod-i2c-core, kmod-i2c-gpio
consume ~20 kB of flash and can be loaded as modules,
Default clock measured ~11.2 ms period, ~89 kHz
The board has well-labeled (unpopulated) headers for serial and I2C
along the front edge of the board (the edge with the LEDs). Looking
from the top, rear of the unit (behind Ethernet jacks)
-------------------------------------------
5G_LED 2G_LED PWR_LED
O O O O O O O
3 S S G T R G
V C D N X X N
3 L A D D
Signed-off-by: Jeff Kletsky <git-comm...@allycomm.com>
---
target/linux/ath79/dts/qca9563_glinet_gl-ar750s.dts | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/target/linux/ath79/dts/qca9563_glinet_gl-ar750s.dts
b/target/linux/ath79/dts/qca9563_glinet_gl-ar750s.dts
index 24198e8043..4f65b2d2e2 100644
--- a/target/linux/ath79/dts/qca9563_glinet_gl-ar750s.dts
+++ b/target/linux/ath79/dts/qca9563_glinet_gl-ar750s.dts
@@ -63,6 +63,13 @@
};
};
+ i2c: i2c {
+ compatible = "i2c-gpio";
+
+ sda-gpios = <&gpio 5 (GPIO_ACTIVE_HIGH|GPIO_OPEN_DRAIN)>;
+ scl-gpios = <&gpio 21 (GPIO_ACTIVE_HIGH|GPIO_OPEN_DRAIN)>;
+ };
+
usb_vbus: regulator-usb-vbus {
compatible = "regulator-fixed";
--
2.20.1
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