driver: i2c: TCA954X: Add support for TCA9548A

Add support for the 8 channels TCA9548A I2C mux. Added a new binding ti,tca9548a binding inheriting properties from ti,tca954x-base and defining its own compatibles fields. Signed-off-by: Aymeric Aillet <[email protected]>
zephyrproject-rtos · Dec 13, 2021 · 903c78c · 903c78c
1 parent ee1d849
commit 903c78c
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diff --git a/drivers/i2c/i2c_tca954x.c b/drivers/i2c/i2c_tca954x.c
@@ -196,3 +196,11 @@ const struct i2c_driver_api tca954x_api_funcs = {
 #undef DT_DRV_COMPAT
 #define DT_DRV_COMPAT ti_tca9546a
 DT_INST_FOREACH_STATUS_OKAY(TCA9546A_INIT)
+
+/*
+ * TCA9548A: 8 channels
+ */
+#define TCA9548A_INIT(n) TCA954x_ROOT_DEFINE(9548, n, 8)
+#undef DT_DRV_COMPAT
+#define DT_DRV_COMPAT ti_tca9548a
+DT_INST_FOREACH_STATUS_OKAY(TCA9548A_INIT)
diff --git a/dts/bindings/i2c/ti,tca9548a.yaml b/dts/bindings/i2c/ti,tca9548a.yaml
@@ -0,0 +1,10 @@
+#Binding for TI TCA9548A, compatible with NXP PCA9548A
+
+description: Texas Instruments TCA9548A binding
+
+compatible: "ti,tca9548a"
+
+include: ti,tca954x-base.yaml
+
+child-binding:
+  compatible: "ti,tca9548a-channel"