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i2c: muxes: pca954x: add PCA9546 variant

This adds the PCA9546 4-channel i2c bus switch.

Signed-off-by: Chris Packham <judge.packham@gmail.com>
Reviewed-by: Luca Ceresoli <luca@lucaceresoli.net>
Reviewed-by: Heiko Schocher <hs@denx.de>
Chris Packham 4 lat temu
rodzic
commit
0b1d7b7271
2 zmienionych plików z 8 dodań i 2 usunięć
  1. 2 2
      drivers/i2c/muxes/Kconfig
  2. 6 0
      drivers/i2c/muxes/pca954x.c

+ 2 - 2
drivers/i2c/muxes/Kconfig

@@ -33,8 +33,8 @@ config I2C_MUX_PCA954x
 	  devices. It is x width I2C multiplexer which enables to partitioning
 	  I2C bus and connect multiple devices with the same address to the same
 	  I2C controller where driver handles proper routing to target i2c
-	  device. Supported chips are PCA9543, PCA9544, PCA9547, PCA9548 and
-	  PCA9646.
+	  device. Supported chips are PCA9543, PCA9544, PCA9546, PCA9547,
+	  PCA9548 and PCA9646.
 
 config I2C_MUX_GPIO
         tristate "GPIO-based I2C multiplexer"

+ 6 - 0
drivers/i2c/muxes/pca954x.c

@@ -18,6 +18,7 @@ DECLARE_GLOBAL_DATA_PTR;
 enum pca_type {
 	PCA9543,
 	PCA9544,
+	PCA9546,
 	PCA9547,
 	PCA9548,
 	PCA9646
@@ -48,6 +49,10 @@ static const struct chip_desc chips[] = {
 		.muxtype = pca954x_ismux,
 		.width = 4,
 	},
+	[PCA9546] = {
+		.muxtype = pca954x_isswi,
+		.width = 4,
+	},
 	[PCA9547] = {
 		.enable = 0x8,
 		.muxtype = pca954x_ismux,
@@ -95,6 +100,7 @@ static const struct i2c_mux_ops pca954x_ops = {
 static const struct udevice_id pca954x_ids[] = {
 	{ .compatible = "nxp,pca9543", .data = PCA9543 },
 	{ .compatible = "nxp,pca9544", .data = PCA9544 },
+	{ .compatible = "nxp,pca9546", .data = PCA9546 },
 	{ .compatible = "nxp,pca9547", .data = PCA9547 },
 	{ .compatible = "nxp,pca9548", .data = PCA9548 },
 	{ .compatible = "nxp,pca9646", .data = PCA9646 },