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drivers: i2c: rv32m1: lpi2c: add pinctrl support

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Add pinctrl support to the OpenISA RV32M1 LPI2C I2C 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 7b33d4af6c
2 changed files with 24 additions and 1 deletions
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23
drivers/i2c/i2c_rv32m1_lpi2c.c
View file

@ -14,6 +14,10 @@
#include <drivers/clock_control.h> #include <drivers/clock_control.h>
#include <fsl_lpi2c.h> #include <fsl_lpi2c.h>
#include <logging/log.h> #include <logging/log.h>
#ifdef CONFIG_PINCTRL
#include <drivers/pinctrl.h>
#endif
LOG_MODULE_REGISTER(rv32m1_lpi2c); LOG_MODULE_REGISTER(rv32m1_lpi2c);
#include "i2c-priv.h" #include "i2c-priv.h"
@ -26,6 +30,9 @@ struct rv32m1_lpi2c_config {
uint32_t clock_ip_src; uint32_t clock_ip_src;
uint32_t bitrate; uint32_t bitrate;
void (*irq_config_func)(const struct device *dev); void (*irq_config_func)(const struct device *dev);
#ifdef CONFIG_PINCTRL
const struct pinctrl_dev_config *pincfg;
#endif
}; };
struct rv32m1_lpi2c_data { struct rv32m1_lpi2c_data {
@ -235,6 +242,12 @@ static int rv32m1_lpi2c_init(const struct device *dev)
return err; return err;
} }
#ifdef CONFIG_PINCTRL
err = pinctrl_apply_state(config->pincfg, PINCTRL_STATE_DEFAULT);
if (err != 0) {
return err;
}
#endif
config->irq_config_func(dev); config->irq_config_func(dev);
return 0; return 0;
@ -245,7 +258,16 @@ static const struct i2c_driver_api rv32m1_lpi2c_driver_api = {
.transfer = rv32m1_lpi2c_transfer, .transfer = rv32m1_lpi2c_transfer,
}; };
#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 RV32M1_LPI2C_DEVICE(id) \ #define RV32M1_LPI2C_DEVICE(id) \
PINCTRL_DEFINE(id) \
static void rv32m1_lpi2c_irq_config_func_##id(const struct device *dev); \ static void rv32m1_lpi2c_irq_config_func_##id(const struct device *dev); \
static const struct rv32m1_lpi2c_config rv32m1_lpi2c_##id##_config = { \ static const struct rv32m1_lpi2c_config rv32m1_lpi2c_##id##_config = { \
.base = \ .base = \
@ -257,6 +279,7 @@ static const struct i2c_driver_api rv32m1_lpi2c_driver_api = {
.clock_ip_src = kCLOCK_IpSrcFircAsync, \ .clock_ip_src = kCLOCK_IpSrcFircAsync, \
.bitrate = DT_INST_PROP(id, clock_frequency), \ .bitrate = DT_INST_PROP(id, clock_frequency), \
.irq_config_func = rv32m1_lpi2c_irq_config_func_##id, \ .irq_config_func = rv32m1_lpi2c_irq_config_func_##id, \
PINCTRL_INIT(id) \
}; \ }; \
static struct rv32m1_lpi2c_data rv32m1_lpi2c_##id##_data = { \ static struct rv32m1_lpi2c_data rv32m1_lpi2c_##id##_data = { \
.transfer_sync = Z_SEM_INITIALIZER( \ .transfer_sync = Z_SEM_INITIALIZER( \

2
dts/bindings/i2c/openisa,rv32m1-lpi2c.yaml
View file

@ -5,7 +5,7 @@ description: OpenISA LPI2C controller
compatible: "openisa,rv32m1-lpi2c" compatible: "openisa,rv32m1-lpi2c"
include: i2c-controller.yaml include: [i2c-controller.yaml, pinctrl-device.yaml]
properties: properties:
reg: reg: