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drivers: counter: rpi_pico: Turn on clock and reset device on init

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Turning on clock via clock controller and
resetting PIO device via reset controller on initializing.

Signed-off-by: TOKITA Hiroshi <tokita.hiroshi@gmail.com>
This commit is contained in:
TOKITA Hiroshi 2023-09-14 07:44:39 +09:00 committed by Carles Cufí
parent 8891f734ec
commit a34210d669
1 changed files with 19 additions and 0 deletions
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19
drivers/counter/counter_rpi_pico_timer.c
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@ -7,6 +7,8 @@
#include <hardware/timer.h>
#include <zephyr/drivers/counter.h>
#include <zephyr/drivers/clock_control.h>
#include <zephyr/drivers/reset.h>
#include <zephyr/sys/atomic.h>
#include <zephyr/irq.h>
#include <cmsis_core.h>
@ -32,6 +34,9 @@ struct counter_rpi_pico_timer_config {
struct counter_config_info info;
timer_hw_t *timer;
void (*irq_config)();
const struct device *clk_dev;
clock_control_subsys_t clk_id;
const struct reset_dt_spec reset;
};
static int counter_rpi_pico_timer_start(const struct device *dev)
@ -166,6 +171,17 @@ static void counter_rpi_pico_irq_handle(uint32_t ch, void *arg)
static int counter_rpi_pico_timer_init(const struct device *dev)
{
const struct counter_rpi_pico_timer_config *config = dev->config;
int ret;
ret = clock_control_on(config->clk_dev, config->clk_id);
if (ret < 0) {
return ret;
}
ret = reset_line_toggle_dt(&config->reset);
if (ret < 0) {
return ret;
}
config->irq_config();
@ -214,6 +230,9 @@ static const struct counter_driver_api counter_rpi_pico_driver_api = {
.flags = COUNTER_CONFIG_INFO_COUNT_UP, \
.channels = ARRAY_SIZE(ch_data##inst), \
}, \
.clk_dev = DEVICE_DT_GET(DT_INST_CLOCKS_CTLR(inst)), \
.clk_id = (clock_control_subsys_t)DT_INST_PHA_BY_IDX(inst, clocks, 0, clk_id), \
.reset = RESET_DT_SPEC_INST_GET(inst), \
}; \
DEVICE_DT_INST_DEFINE(inst, counter_rpi_pico_timer_init, NULL, &counter_##inst##_data, \
&counter_##inst##_config, PRE_KERNEL_1, \