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[PATCH] hw/i2c: add pca9543 support to mux
From: |
Patrick Venture |
Subject: |
[PATCH] hw/i2c: add pca9543 support to mux |
Date: |
Mon, 8 Nov 2021 13:58:31 -0800 |
Adds support for the 2 channel pca9543 i2c switch.
Signed-off-by: Patrick Venture <venture@google.com>
---
hw/i2c/i2c_mux_pca954x.c | 12 ++++++++++++
include/hw/i2c/i2c_mux_pca954x.h | 1 +
2 files changed, 13 insertions(+)
diff --git a/hw/i2c/i2c_mux_pca954x.c b/hw/i2c/i2c_mux_pca954x.c
index 847c59921c..36a5c8cb31 100644
--- a/hw/i2c/i2c_mux_pca954x.c
+++ b/hw/i2c/i2c_mux_pca954x.c
@@ -29,6 +29,7 @@
#define PCA9548_CHANNEL_COUNT 8
#define PCA9546_CHANNEL_COUNT 4
+#define PCA9543_CHANNEL_COUNT 2
/*
* struct Pca954xChannel - The i2c mux device will have N of these states
@@ -203,6 +204,12 @@ static void pca954x_channel_class_init(ObjectClass *klass,
void *data)
dc->desc = "Pca954x Channel";
}
+static void pca9543_class_init(ObjectClass *klass, void *data)
+{
+ Pca954xClass *s = PCA954X_CLASS(klass);
+ s->nchans = PCA9543_CHANNEL_COUNT;
+}
+
static void pca9546_class_init(ObjectClass *klass, void *data)
{
Pca954xClass *s = PCA954X_CLASS(klass);
@@ -268,6 +275,11 @@ static const TypeInfo pca954x_info[] = {
.class_init = pca954x_class_init,
.abstract = true,
},
+ {
+ .name = TYPE_PCA9543,
+ .parent = TYPE_PCA954X,
+ .class_init = pca9543_class_init,
+ },
{
.name = TYPE_PCA9546,
.parent = TYPE_PCA954X,
diff --git a/include/hw/i2c/i2c_mux_pca954x.h b/include/hw/i2c/i2c_mux_pca954x.h
index 8aaf9bbc39..91e2ffd0a2 100644
--- a/include/hw/i2c/i2c_mux_pca954x.h
+++ b/include/hw/i2c/i2c_mux_pca954x.h
@@ -3,6 +3,7 @@
#include "hw/i2c/i2c.h"
+#define TYPE_PCA9543 "pca9543"
#define TYPE_PCA9546 "pca9546"
#define TYPE_PCA9548 "pca9548"
--
2.34.0.rc0.344.g81b53c2807-goog
- [PATCH] hw/i2c: add pca9543 support to mux,
Patrick Venture <=