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drivers: pinctrl: nrf: Add support for I2S and PDM peripherals

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Add support for configuring pins of the nRF I2S and PDM peripherals.

Signed-off-by: Andrzej Głąbek <andrzej.glabek@nordicsemi.no>
This commit is contained in:
Andrzej Głąbek 2022-03-01 17:01:44 +01:00 • committed by Carles Cufí
commit 0e2af43fc6
2 changed files with 80 additions and 0 deletions
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62
drivers/pinctrl/pinctrl_nrf.c
View file

@ -53,6 +53,14 @@ BUILD_ASSERT(((NRF_DRIVE_S0S1 == NRF_GPIO_PIN_S0S1) &&
#define NRF_PSEL_TWIM(reg, line) ((NRF_TWIM_Type *)reg)->PSEL.line
#endif
#if DT_HAS_COMPAT_STATUS_OKAY(nordic_nrf_i2s)
#define NRF_PSEL_I2S(reg, line) ((NRF_I2S_Type *)reg)->PSEL.line
#endif
#if DT_HAS_COMPAT_STATUS_OKAY(nordic_nrf_pdm)
#define NRF_PSEL_PDM(reg, line) ((NRF_PDM_Type *)reg)->PSEL.line
#endif
/**
* @brief Configure pin settings.
*
@ -156,6 +164,60 @@ int pinctrl_configure_pins(const pinctrl_soc_pin_t *pins, uint8_t pin_cnt,
NRF_GPIO_PIN_INPUT_CONNECT);
break;
#endif /* defined(NRF_PSEL_TWIM) */
#if defined(NRF_PSEL_I2S)
case NRF_FUN_I2S_SCK_M:
NRF_PSEL_I2S(reg, SCK) = NRF_GET_PIN(pins[i]);
nrf_gpio_pin_write(NRF_GET_PIN(pins[i]), 0);
nrf_pin_configure(pins[i], NRF_GPIO_PIN_DIR_OUTPUT,
NRF_GPIO_PIN_INPUT_DISCONNECT);
break;
case NRF_FUN_I2S_SCK_S:
NRF_PSEL_I2S(reg, SCK) = NRF_GET_PIN(pins[i]);
nrf_pin_configure(pins[i], NRF_GPIO_PIN_DIR_INPUT,
NRF_GPIO_PIN_INPUT_CONNECT);
break;
case NRF_FUN_I2S_LRCK_M:
NRF_PSEL_I2S(reg, LRCK) = NRF_GET_PIN(pins[i]);
nrf_gpio_pin_write(NRF_GET_PIN(pins[i]), 0);
nrf_pin_configure(pins[i], NRF_GPIO_PIN_DIR_OUTPUT,
NRF_GPIO_PIN_INPUT_DISCONNECT);
break;
case NRF_FUN_I2S_LRCK_S:
NRF_PSEL_I2S(reg, LRCK) = NRF_GET_PIN(pins[i]);
nrf_pin_configure(pins[i], NRF_GPIO_PIN_DIR_INPUT,
NRF_GPIO_PIN_INPUT_CONNECT);
break;
case NRF_FUN_I2S_SDIN:
NRF_PSEL_I2S(reg, SDIN) = NRF_GET_PIN(pins[i]);
nrf_pin_configure(pins[i], NRF_GPIO_PIN_DIR_INPUT,
NRF_GPIO_PIN_INPUT_CONNECT);
break;
case NRF_FUN_I2S_SDOUT:
NRF_PSEL_I2S(reg, SDOUT) = NRF_GET_PIN(pins[i]);
nrf_gpio_pin_write(NRF_GET_PIN(pins[i]), 0);
nrf_pin_configure(pins[i], NRF_GPIO_PIN_DIR_OUTPUT,
NRF_GPIO_PIN_INPUT_DISCONNECT);
break;
case NRF_FUN_I2S_MCK:
NRF_PSEL_I2S(reg, MCK) = NRF_GET_PIN(pins[i]);
nrf_gpio_pin_write(NRF_GET_PIN(pins[i]), 0);
nrf_pin_configure(pins[i], NRF_GPIO_PIN_DIR_OUTPUT,
NRF_GPIO_PIN_INPUT_DISCONNECT);
break;
#endif /* defined(NRF_PSEL_I2S) */
#if defined(NRF_PSEL_PDM)
case NRF_FUN_PDM_CLK:
NRF_PSEL_PDM(reg, CLK) = NRF_GET_PIN(pins[i]);
nrf_gpio_pin_write(NRF_GET_PIN(pins[i]), 0);
nrf_pin_configure(pins[i], NRF_GPIO_PIN_DIR_OUTPUT,
NRF_GPIO_PIN_INPUT_DISCONNECT);
break;
case NRF_FUN_PDM_DIN:
NRF_PSEL_PDM(reg, DIN) = NRF_GET_PIN(pins[i]);
nrf_pin_configure(pins[i], NRF_GPIO_PIN_DIR_INPUT,
NRF_GPIO_PIN_INPUT_CONNECT);
break;
#endif /* defined(NRF_PSEL_PDM) */
default:
return -ENOTSUP;
}

18
include/dt-bindings/pinctrl/nrf-pinctrl.h
View file

@ -77,6 +77,24 @@
#define NRF_FUN_TWIM_SCL 11U
/** TWI master SDA */
#define NRF_FUN_TWIM_SDA 12U
/** I2S SCK in master mode */
#define NRF_FUN_I2S_SCK_M 13U
/** I2S SCK in slave mode */
#define NRF_FUN_I2S_SCK_S 14U
/** I2S LRCK in master mode */
#define NRF_FUN_I2S_LRCK_M 15U
/** I2S LRCK in slave mode */
#define NRF_FUN_I2S_LRCK_S 16U
/** I2S SDIN */
#define NRF_FUN_I2S_SDIN 17U
/** I2S SDOUT */
#define NRF_FUN_I2S_SDOUT 18U
/** I2S MCK */
#define NRF_FUN_I2S_MCK 19U
/** PDM CLK */
#define NRF_FUN_PDM_CLK 20U
/** PDM DIN */
#define NRF_FUN_PDM_DIN 21U
/** @} */