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drivers: pinctrl: pinctrl_gecko: Add support for using pinctrl api

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This update integrates I2C support with the pinctrl_configure_pins api
within the pinctrl_gecko driver.

Signed-off-by: Arunmani Alagarsamy <arunmani.a@capgemini.com>
This commit is contained in:
Arunmani Alagarsamy 2024-04-18 10:52:34 +05:30 committed by Anas Nashif
parent 919baf84d6
commit 04931a54ee
3 changed files with 63 additions and 0 deletions
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53
drivers/pinctrl/pinctrl_gecko.c
View file

@ -1,5 +1,6 @@
/*
* Copyright (c) 2023 Silicon Labs
* Copyright (c) 2024 Capgemini
*
* SPDX-License-Identifier: Apache-2.0
*/
@ -18,6 +19,10 @@ int pinctrl_configure_pins(const pinctrl_soc_pin_t *pins, uint8_t pin_cnt, uintp
int usart_num = USART_NUM(base);
#endif
#ifdef CONFIG_I2C_GECKO
I2C_TypeDef *i2c_base = (I2C_TypeDef *)reg;
#endif
#ifdef CONFIG_UART_GECKO
struct soc_gpio_pin rxpin = {0, 0, 0, 0};
struct soc_gpio_pin txpin = {0, 0, 0, 0};
@ -277,6 +282,54 @@ int pinctrl_configure_pins(const pinctrl_soc_pin_t *pins, uint8_t pin_cnt, uintp
#endif /* CONFIG_SOC_FAMILY_SILABS_S1 */
#endif /* CONFIG_SPI_GECKO */
#ifdef CONFIG_I2C_GECKO
case GECKO_FUN_I2C_SDA:
pin_config.mode = gpioModeWiredAnd;
pin_config.out = 1;
GPIO_PinModeSet(pin_config.port, pin_config.pin, pin_config.mode,
pin_config.out);
break;
case GECKO_FUN_I2C_SCL:
pin_config.mode = gpioModeWiredAnd;
pin_config.out = 1;
GPIO_PinModeSet(pin_config.port, pin_config.pin, pin_config.mode,
pin_config.out);
break;
case GECKO_FUN_I2C_SDA_LOC:
#ifdef CONFIG_SOC_GECKO_HAS_INDIVIDUAL_PIN_LOCATION
i2c_base->ROUTEPEN |= I2C_ROUTEPEN_SDAPEN;
i2c_base->ROUTELOC0 &= ~_I2C_ROUTELOC0_SDALOC_MASK;
i2c_base->ROUTELOC0 |= (loc << _I2C_ROUTELOC0_SDALOC_SHIFT);
#elif defined(GPIO_I2C_ROUTEEN_SCLPEN) && defined(GPIO_I2C_ROUTEEN_SDAPEN)
GPIO->I2CROUTE[I2C_NUM(i2c_base)].ROUTEEN |= GPIO_I2C_ROUTEEN_SDAPEN;
GPIO->I2CROUTE[I2C_NUM(i2c_base)].SDAROUTE =
(pin_config.pin << _GPIO_I2C_SDAROUTE_PIN_SHIFT) |
(pin_config.port << _GPIO_I2C_SDAROUTE_PORT_SHIFT);
#else
i2c_base->ROUTE = I2C_ROUTE_SDAPEN | I2C_ROUTE_SCLPEN | (loc << 8);
#endif
break;
case GECKO_FUN_I2C_SCL_LOC:
#ifdef CONFIG_SOC_GECKO_HAS_INDIVIDUAL_PIN_LOCATION
i2c_base->ROUTEPEN |= I2C_ROUTEPEN_SCLPEN;
i2c_base->ROUTELOC0 &= ~_I2C_ROUTEPEN_SCLPEN_MASK;
i2c_base->ROUTELOC0 |= (loc << _I2C_ROUTELOC0_SCLLOC_SHIFT);
#elif defined(GPIO_I2C_ROUTEEN_SCLPEN) && defined(GPIO_I2C_ROUTEEN_SDAPEN)
GPIO->I2CROUTE[I2C_NUM(i2c_base)].ROUTEEN |= GPIO_I2C_ROUTEEN_SCLPEN;
GPIO->I2CROUTE[I2C_NUM(i2c_base)].SCLROUTE =
(pin_config.pin << _GPIO_I2C_SCLROUTE_PIN_SHIFT) |
(pin_config.port << _GPIO_I2C_SCLROUTE_PORT_SHIFT);
#else
i2c_base->ROUTE = I2C_ROUTE_SDAPEN | I2C_ROUTE_SCLPEN | (loc << 8);
#endif
break;
#endif /* CONFIG_I2C_GECKO */
default:
return -ENOTSUP;
}

5
include/zephyr/dt-bindings/pinctrl/gecko-pinctrl-s1.h
View file

@ -85,6 +85,11 @@
#define GECKO_FUN_SPI_CS_LOC 20U
#define GECKO_FUN_SPI_SCK_LOC 21U
#define GECKO_FUN_I2C_SDA 22U
#define GECKO_FUN_I2C_SCL 23U
#define GECKO_FUN_I2C_SDA_LOC 24U
#define GECKO_FUN_I2C_SCL_LOC 25U
/** @} */

5
include/zephyr/dt-bindings/pinctrl/gecko-pinctrl.h
View file

@ -66,6 +66,11 @@
#define GECKO_FUN_SPI_CSN 7U
#define GECKO_FUN_SPI_SCK 8U
#define GECKO_FUN_I2C_SDA 9U
#define GECKO_FUN_I2C_SCL 10U
#define GECKO_FUN_I2C_SDA_LOC 11U
#define GECKO_FUN_I2C_SCL_LOC 12U
/** @} */
/**