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drivers: pwm: rv32m1: tpm: add pinctrl support

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Add pinctrl support to the OpenISA RV32M1 TPM PWM driver.

Signed-off-by: Henrik Brix Andersen <henrik@brixandersen.dk>
This commit is contained in:
Henrik Brix Andersen 2022-05-01 22:32:33 +02:00 • committed by David Leach
commit 64c9fadc7c
2 changed files with 27 additions and 1 deletions
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26
drivers/pwm/pwm_rv32m1_tpm.c
View file

@ -15,6 +15,9 @@
#include <soc.h> #include <soc.h>
#include <fsl_tpm.h> #include <fsl_tpm.h>
#include <fsl_clock.h> #include <fsl_clock.h>
#ifdef CONFIG_PINCTRL
#include <drivers/pinctrl.h>
#endif
#define LOG_LEVEL CONFIG_PWM_LOG_LEVEL #define LOG_LEVEL CONFIG_PWM_LOG_LEVEL
#include <logging/log.h> #include <logging/log.h>
@ -30,6 +33,9 @@ struct rv32m1_tpm_config {
tpm_clock_prescale_t prescale; tpm_clock_prescale_t prescale;
uint8_t channel_count; uint8_t channel_count;
tpm_pwm_mode_t mode; tpm_pwm_mode_t mode;
#ifdef CONFIG_PINCTRL
const struct pinctrl_dev_config *pincfg;
#endif
}; };
struct rv32m1_tpm_data { struct rv32m1_tpm_data {
@ -131,6 +137,9 @@ static int rv32m1_tpm_init(const struct device *dev)
struct rv32m1_tpm_data *data = dev->data; struct rv32m1_tpm_data *data = dev->data;
tpm_chnl_pwm_signal_param_t *channel = data->channel; tpm_chnl_pwm_signal_param_t *channel = data->channel;
tpm_config_t tpm_config; tpm_config_t tpm_config;
#ifdef CONFIG_PINCTRL
int err;
#endif
int i; int i;
if (config->channel_count > ARRAY_SIZE(data->channel)) { if (config->channel_count > ARRAY_SIZE(data->channel)) {
@ -157,6 +166,13 @@ static int rv32m1_tpm_init(const struct device *dev)
channel++; channel++;
} }
#ifdef CONFIG_PINCTRL
err = pinctrl_apply_state(config->pincfg, PINCTRL_STATE_DEFAULT);
if (err) {
return err;
}
#endif
TPM_GetDefaultConfig(&tpm_config); TPM_GetDefaultConfig(&tpm_config);
tpm_config.prescale = config->prescale; tpm_config.prescale = config->prescale;
@ -170,7 +186,16 @@ static const struct pwm_driver_api rv32m1_tpm_driver_api = {
.get_cycles_per_sec = rv32m1_tpm_get_cycles_per_sec, .get_cycles_per_sec = rv32m1_tpm_get_cycles_per_sec,
}; };
#ifdef CONFIG_PINCTRL
#define PINCTRL_INIT(n) .pincfg = PINCTRL_DT_INST_DEV_CONFIG_GET(n),
#define PINCTRL_DEFINE(n) PINCTRL_DT_INST_DEFINE(n);
#else
#define PINCTRL_DEFINE(n)
#define PINCTRL_INIT(n)
#endif
#define TPM_DEVICE(n) \ #define TPM_DEVICE(n) \
PINCTRL_DEFINE(n) \
static const struct rv32m1_tpm_config rv32m1_tpm_config_##n = { \ static const struct rv32m1_tpm_config rv32m1_tpm_config_##n = { \
.base = (TPM_Type *) \ .base = (TPM_Type *) \
DT_INST_REG_ADDR(n), \ DT_INST_REG_ADDR(n), \
@ -182,6 +207,7 @@ static const struct pwm_driver_api rv32m1_tpm_driver_api = {
.channel_count = FSL_FEATURE_TPM_CHANNEL_COUNTn((TPM_Type *) \ .channel_count = FSL_FEATURE_TPM_CHANNEL_COUNTn((TPM_Type *) \
DT_INST_REG_ADDR(n)), \ DT_INST_REG_ADDR(n)), \
.mode = kTPM_EdgeAlignedPwm, \ .mode = kTPM_EdgeAlignedPwm, \
PINCTRL_INIT(n) \
}; \ }; \
static struct rv32m1_tpm_data rv32m1_tpm_data_##n; \ static struct rv32m1_tpm_data rv32m1_tpm_data_##n; \
DEVICE_DT_INST_DEFINE(n, &rv32m1_tpm_init, NULL, \ DEVICE_DT_INST_DEFINE(n, &rv32m1_tpm_init, NULL, \

2
dts/bindings/pwm/openisa,rv32m1-tpm.yaml
View file

@ -5,7 +5,7 @@ description: OpenISA Timer/PWM Module (TPM)
compatible: "openisa,rv32m1-tpm" compatible: "openisa,rv32m1-tpm"
include: [pwm-controller.yaml, base.yaml] include: [pwm-controller.yaml, base.yaml, pinctrl-device.yaml]
properties: properties:
reg: reg: