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drivers: pinctrl: add CC13XX/CC26XX pinctrl driver

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Add pinctrl driver for CC13XX/CC26XX family of SoCs
to facilitate transition from pinmux to pinctrl.

`IOCPortConfigureSet()` from TI hal driverlib used to
implement the generic pinctrl driver.

Signed-off-by: Vaishnav Achath <vaishnav@beagleboard.org>
This commit is contained in:
Vaishnav Achath 2022-04-15 15:52:17 +05:30 • committed by Christopher Friedt
commit e2ed8cf130
7 changed files with 256 additions and 0 deletions
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soc/arm/ti_simplelink/cc13x2_cc26x2/pinctrl_soc.h Normal file
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/*
* Copyright (c) 2022 Vaishnav Achath
*
* SPDX-License-Identifier: Apache-2.0
*/
#ifndef TI_SIMPLELINK_CC13XX_CC26XX_SOC_PINCTRL_H_
#define TI_SIMPLELINK_CC13XX_CC26XX_SOC_PINCTRL_H_
#include <zephyr/types.h>
/* Defines for enabling/disabling an IO */
#define IOC_SLEW_ENABLE 0x00001000
#define IOC_SLEW_DISABLE 0x00000000
#define IOC_INPUT_ENABLE 0x20000000
#define IOC_INPUT_DISABLE 0x00000000
#define IOC_HYST_ENABLE 0x40000000
#define IOC_HYST_DISABLE 0x00000000
/* Defines that can be used to set the IO Mode of an IO */
#define IOC_IOMODE_NORMAL 0x00000000
#define IOC_IOMODE_INV 0x01000000
#define IOC_IOMODE_OPEN_DRAIN_NORMAL 0x04000000
#define IOC_IOMODE_OPEN_DRAIN_INV 0x05000000
#define IOC_IOMODE_OPEN_SRC_NORMAL 0x06000000
#define IOC_IOMODE_OPEN_SRC_INV 0x07000000
/* Defines that can be used to set pull on an IO */
#define IOC_NO_IOPULL 0x00006000
#define IOC_IOPULL_UP 0x00004000
#define IOC_IOPULL_DOWN 0x00002000
typedef struct pinctrl_soc_pin_t {
uint32_t pin;
uint32_t iofunc;
uint32_t iomode;
} pinctrl_soc_pin_t;
/* Convert DT flags to SoC flags */
#define CC13XX_CC26XX_PIN_FLAGS(node_id) \
(DT_PROP(node_id, bias_pull_up) * IOC_IOPULL_UP | \
DT_PROP(node_id, bias_pull_down) * IOC_IOPULL_DOWN | \
DT_PROP(node_id, bias_disable) * IOC_NO_IOPULL | \
DT_PROP(node_id, drive_open_drain) * IOC_IOMODE_OPEN_DRAIN_NORMAL | \
DT_PROP(node_id, drive_open_source) * IOC_IOMODE_OPEN_SRC_NORMAL | \
DT_PROP(node_id, input_enable) * IOC_INPUT_ENABLE | \
DT_PROP(node_id, input_schmitt_enable) * IOC_HYST_ENABLE)
#define CC13XX_CC26XX_DT_PIN(node_id) \
{ \
.pin = DT_PROP_BY_IDX(node_id, pinmux, 0), \
.iofunc = DT_PROP_BY_IDX(node_id, pinmux, 1), \
.iomode = CC13XX_CC26XX_PIN_FLAGS(node_id) \
},
#define Z_PINCTRL_STATE_PIN_INIT(node_id, prop, idx) \
CC13XX_CC26XX_DT_PIN(DT_PROP_BY_IDX(node_id, prop, idx))
#define Z_PINCTRL_STATE_PINS_INIT(node_id, prop) \
{ DT_FOREACH_PROP_ELEM(node_id, prop, Z_PINCTRL_STATE_PIN_INIT) }
#endif /* TI_SIMPLELINK_CC13XX_CC26XX_SOC_PINCTRL_H_ */