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feat(kscan): Add PM support to GPIO kscan drivers.

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* Add PM device hook to the kscan direct & matrix drivers.
This commit is contained in:
Peter Johanson 2023-09-13 19:58:53 +00:00 • committed by Pete Johanson
parent adb3a13dc5
commit 738c3c0e3b
2 changed files with 52 additions and 2 deletions
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27
app/module/drivers/kscan/kscan_gpio_direct.c
View file

@ -12,6 +12,7 @@
#include <zephyr/drivers/kscan.h> #include <zephyr/drivers/kscan.h>
#include <zephyr/kernel.h> #include <zephyr/kernel.h>
#include <zephyr/logging/log.h> #include <zephyr/logging/log.h>
#include <zephyr/pm/device.h>
#include <zephyr/sys/util.h> #include <zephyr/sys/util.h>
#include <zmk/debounce.h> #include <zmk/debounce.h>
@ -318,6 +319,28 @@ static int kscan_direct_init(const struct device *dev) {
return 0; return 0;
} }
#if IS_ENABLED(CONFIG_PM_DEVICE)
static int kscan_direct_pm_action(const struct device *dev, enum pm_device_action action) {
int ret = 0;
switch (action) {
case PM_DEVICE_ACTION_SUSPEND:
kscan_direct_disable(dev);
break;
case PM_DEVICE_ACTION_RESUME:
kscan_direct_enable(dev);
break;
default:
ret = -ENOTSUP;
break;
}
return ret;
}
#endif // IS_ENABLED(CONFIG_PM_DEVICE)
static const struct kscan_driver_api kscan_direct_api = { static const struct kscan_driver_api kscan_direct_api = {
.config = kscan_direct_configure, .config = kscan_direct_configure,
.enable_callback = kscan_direct_enable, .enable_callback = kscan_direct_enable,
@ -354,7 +377,9 @@ static const struct kscan_driver_api kscan_direct_api = {
.toggle_mode = DT_INST_PROP(n, toggle_mode), \ .toggle_mode = DT_INST_PROP(n, toggle_mode), \
}; \ }; \
\ \
DEVICE_DT_INST_DEFINE(n, &kscan_direct_init, NULL, &kscan_direct_data_##n, \ PM_DEVICE_DT_INST_DEFINE(n, kscan_direct_pm_action); \
\
DEVICE_DT_INST_DEFINE(n, &kscan_direct_init, PM_DEVICE_DT_INST_GET(n), &kscan_direct_data_##n, \
&kscan_direct_config_##n, POST_KERNEL, CONFIG_KSCAN_INIT_PRIORITY, \ &kscan_direct_config_##n, POST_KERNEL, CONFIG_KSCAN_INIT_PRIORITY, \
&kscan_direct_api); &kscan_direct_api);

27
app/module/drivers/kscan/kscan_gpio_matrix.c
View file

@ -10,6 +10,7 @@
#include <zephyr/devicetree.h> #include <zephyr/devicetree.h>
#include <zephyr/drivers/gpio.h> #include <zephyr/drivers/gpio.h>
#include <zephyr/drivers/kscan.h> #include <zephyr/drivers/kscan.h>
#include <zephyr/pm/device.h>
#include <zephyr/kernel.h> #include <zephyr/kernel.h>
#include <zephyr/logging/log.h> #include <zephyr/logging/log.h>
#include <zephyr/sys/__assert.h> #include <zephyr/sys/__assert.h>
@ -421,6 +422,28 @@ static int kscan_matrix_init(const struct device *dev) {
return 0; return 0;
} }
#if IS_ENABLED(CONFIG_PM_DEVICE)
static int kscan_matrix_pm_action(const struct device *dev, enum pm_device_action action) {
int ret = 0;
switch (action) {
case PM_DEVICE_ACTION_SUSPEND:
kscan_matrix_disable(dev);
break;
case PM_DEVICE_ACTION_RESUME:
kscan_matrix_enable(dev);
break;
default:
ret = -ENOTSUP;
break;
}
return ret;
}
#endif // IS_ENABLED(CONFIG_PM_DEVICE)
static const struct kscan_driver_api kscan_matrix_api = { static const struct kscan_driver_api kscan_matrix_api = {
.config = kscan_matrix_configure, .config = kscan_matrix_configure,
.enable_callback = kscan_matrix_enable, .enable_callback = kscan_matrix_enable,
@ -465,7 +488,9 @@ static const struct kscan_driver_api kscan_matrix_api = {
.diode_direction = INST_DIODE_DIR(n), \ .diode_direction = INST_DIODE_DIR(n), \
}; \ }; \
\ \
DEVICE_DT_INST_DEFINE(n, &kscan_matrix_init, NULL, &kscan_matrix_data_##n, \ PM_DEVICE_DT_INST_DEFINE(n, kscan_matrix_pm_action); \
\
DEVICE_DT_INST_DEFINE(n, &kscan_matrix_init, PM_DEVICE_DT_INST_GET(n), &kscan_matrix_data_##n, \
&kscan_matrix_config_##n, POST_KERNEL, CONFIG_KSCAN_INIT_PRIORITY, \ &kscan_matrix_config_##n, POST_KERNEL, CONFIG_KSCAN_INIT_PRIORITY, \
&kscan_matrix_api); &kscan_matrix_api);