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drivers: i3c: add dummy driver for vnd,i3c

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It is just used to be able to DEVICE_DT_GET() bus devices from
tests/drivers/build_all in an upcoming commit.

Signed-off-by: Armando Visconti <armando.visconti@st.com>
This commit is contained in:
Armando Visconti 2023-11-11 10:26:59 +01:00 committed by Fabio Baltieri
parent 2c19de53bc
commit 0d9654670f
4 changed files with 64 additions and 0 deletions
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5
drivers/i3c/CMakeLists.txt
View file

@ -30,3 +30,8 @@ zephyr_library_sources_ifdef(
CONFIG_I3C_CADENCE
i3c_cdns.c
)
zephyr_library_sources_ifdef(
CONFIG_I3C_TEST
i3c_test.c
)

1
drivers/i3c/Kconfig
View file

@ -100,5 +100,6 @@ comment "Device Drivers"
rsource "Kconfig.nxp"
rsource "Kconfig.cdns"
rsource "Kconfig.test"
endif # I3C

11
drivers/i3c/Kconfig.test Normal file
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@ -0,0 +1,11 @@
# Copyright (c) 2021, Commonwealth Scientific and Industrial Research
# Organisation (CSIRO) ABN 41 687 119 230.
# Copyright (c) 2023 STMicroelectronics
#
# SPDX-License-Identifier: Apache-2.0
# Hidden option for turning on the dummy driver for vnd,i3c devices
# used in testing.
config I3C_TEST
def_bool DT_HAS_VND_I3C_ENABLED
depends on DT_HAS_VND_I3C_ENABLED

47
drivers/i3c/i3c_test.c Normal file
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@ -0,0 +1,47 @@
/*
* Copyright (c) 2023 STMicroelectronics
*
* SPDX-License-Identifier: Apache-2.0
*/
/*
* This is not a real I3C driver. It is used to instantiate struct
* devices for the "vnd,i3c" devicetree compatible used in test code.
*/
#define DT_DRV_COMPAT vnd_i3c
#include <zephyr/drivers/i3c.h>
#include <zephyr/device.h>
#include <zephyr/kernel.h>
static int vnd_i3c_configure(const struct device *dev,
enum i3c_config_type type, void *config)
{
return -ENOTSUP;
}
static int vnd_i3c_config_get(const struct device *dev,
enum i3c_config_type type, void *config)
{
return -ENOTSUP;
}
static int vnd_i3c_recover_bus(const struct device *dev)
{
return -ENOTSUP;
}
static const struct i3c_driver_api vnd_i3c_api = {
.configure = vnd_i3c_configure,
.config_get = vnd_i3c_config_get,
.recover_bus = vnd_i3c_recover_bus,
};
#define VND_I3C_INIT(n) \
DEVICE_DT_INST_DEFINE(n, NULL, NULL, NULL, NULL, \
POST_KERNEL, \
CONFIG_KERNEL_INIT_PRIORITY_DEVICE, \
&vnd_i3c_api);
DT_INST_FOREACH_STATUS_OKAY(VND_I3C_INIT)