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iicbus/mux/pca954x: add support for PCA9546 I2C Switch

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Add support for the 4 channel I2C switch from NXP by adding a new
description struct and the list entries.  Compared to x=[2345] which
require code to support the INT, for this one no further changes are
needed.

Tested on:	WHLE-LS1088A using a SPF+
MFC after:	1 week
Reviewed by:	imp
Differential Revision: https://reviews.freebsd.org/D44009
This commit is contained in:
Bjoern A. Zeeb 2024-02-21 09:10:55 +00:00
parent 64963dd2f0
commit c81df1c112
1 changed files with 10 additions and 1 deletions
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11
sys/dev/iicbus/mux/pca954x.c
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@ -3,7 +3,7 @@
*
* Copyright (c) 2019 Ian Lepore <ian@freebsd.org>
* Copyright (c) 2020-2021 Andriy Gapon
* Copyright (c) 2022 Bjoern A. Zeeb
* Copyright (c) 2022-2024 Bjoern A. Zeeb
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
@ -69,6 +69,13 @@ static struct pca954x_descr pca9540_descr = {
.enable = 0x04,
};
static struct pca954x_descr pca9546_descr = {
.partname = "pca9546",
.description = "PCA9546 I2C Switch",
.type = PCA954X_SW,
.numchannels = 4,
};
static struct pca954x_descr pca9547_descr = {
.partname = "pca9547",
.description = "PCA9547 I2C Mux",
@ -87,6 +94,7 @@ static struct pca954x_descr pca9548_descr = {
#ifdef FDT
static struct ofw_compat_data compat_data[] = {
{ "nxp,pca9540", (uintptr_t)&pca9540_descr },
{ "nxp,pca9546", (uintptr_t)&pca9546_descr },
{ "nxp,pca9547", (uintptr_t)&pca9547_descr },
{ "nxp,pca9548", (uintptr_t)&pca9548_descr },
{ NULL, 0 },
@ -94,6 +102,7 @@ static struct ofw_compat_data compat_data[] = {
#else
static struct pca954x_descr *part_descrs[] = {
&pca9540_descr,
&pca9546_descr,
&pca9547_descr,
&pca9548_descr,
};