From 9985b74bf6d6550b83370e28057f11eab2a647d7 Mon Sep 17 00:00:00 2001
From: Luca Ceresoli <luca@lucaceresoli.net>
Date: Tue, 9 Apr 2019 08:57:43 +0200
Subject: [PATCH] i2c: muxes: pca954x: support PCA9543 I2C switch
The PCA9543 is a 2-channel I2C switch.
Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
Reviewed-by: Heiko Schocher <hs@denx.de>
Acked-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Heiko Schocher<hs@denx.de>
---
drivers/i2c/muxes/Kconfig | 3 ++-
drivers/i2c/muxes/pca954x.c | 6 ++++++
2 files changed, 8 insertions(+), 1 deletion(-)
diff --git a/drivers/i2c/muxes/Kconfig b/drivers/i2c/muxes/Kconfig
index 4a601c88b7..68f15261be 100644
--- a/drivers/i2c/muxes/Kconfig
+++ b/drivers/i2c/muxes/Kconfig
@@ -33,7 +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 PCA9544, PCA9547, PCA9548 and PCA9646.
+ device. Supported chips are PCA9543, PCA9544, PCA9547, PCA9548 and
+ PCA9646.
config I2C_MUX_GPIO
tristate "GPIO-based I2C multiplexer"
diff --git a/drivers/i2c/muxes/pca954x.c b/drivers/i2c/muxes/pca954x.c
index 5669753ce1..a630ce991d 100644
--- a/drivers/i2c/muxes/pca954x.c
+++ b/drivers/i2c/muxes/pca954x.c
@@ -15,6 +15,7 @@
DECLARE_GLOBAL_DATA_PTR;
enum pca_type {
+ PCA9543,
PCA9544,
PCA9547,
PCA9548,
@@ -37,6 +38,10 @@ struct pca954x_priv {
};
static const struct chip_desc chips[] = {
+ [PCA9543] = {
+ .muxtype = pca954x_isswi,
+ .width = 2,
+ },
[PCA9544] = {
.enable = 0x4,
.muxtype = pca954x_ismux,
@@ -87,6 +92,7 @@ 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,pca9547", .data = PCA9547 },
{ .compatible = "nxp,pca9548", .data = PCA9548 },
--
2.39.5