+++ /dev/null
-// SPDX-License-Identifier: GPL-2.0
-/*
- * Intel Thunder Bay SOC pinctrl/GPIO driver
- *
- * Copyright (C) 2021 Intel Corporation
- */
-
-#include <linux/device.h>
-#include <linux/err.h>
-#include <linux/gpio/driver.h>
-#include <linux/init.h>
-#include <linux/interrupt.h>
-#include <linux/io.h>
-#include <linux/irq.h>
-#include <linux/module.h>
-#include <linux/of.h>
-#include <linux/of_irq.h>
-
-#include <linux/pinctrl/pinconf.h>
-#include <linux/pinctrl/pinconf-generic.h>
-#include <linux/pinctrl/pinctrl.h>
-#include <linux/pinctrl/pinmux.h>
-
-#include <linux/platform_device.h>
-#include <linux/slab.h>
-#include <linux/spinlock.h>
-
-#include "core.h"
-#include "pinconf.h"
-#include "pinctrl-utils.h"
-#include "pinmux.h"
-
-/* Bit 0:2 and 4:6 should be used for mode selection */
-#define THB_GPIO_PINMUX_MODE_0 0x00
-#define THB_GPIO_PINMUX_MODE_1 0x11
-#define THB_GPIO_PINMUX_MODE_2 0x22
-#define THB_GPIO_PINMUX_MODE_3 0x33
-#define THB_GPIO_PINMUX_MODE_4 0x44
-
-#define THB_GPIO_PORT_SELECT_MASK BIT(8)
-#define THB_GPIO_PAD_DIRECTION_MASK BIT(10)
-#define THB_GPIO_SPU_MASK BIT(11)
-#define THB_GPIO_PULL_ENABLE_MASK BIT(12)
-#define THB_GPIO_PULL_UP_MASK BIT(13)
-#define THB_GPIO_PULL_DOWN_MASK BIT(14)
-#define THB_GPIO_ENAQ_MASK BIT(15)
-/* bit 16-19: Drive Strength for the Pad */
-#define THB_GPIO_DRIVE_STRENGTH_MASK (0xF0000)
-#define THB_GPIO_SLEW_RATE_MASK BIT(20)
-#define THB_GPIO_SCHMITT_TRIGGER_MASK BIT(21)
-
-#define THB_GPIO_REG_OFFSET(pin_num) ((pin_num) * (0x4))
-#define THB_MAX_MODE_SUPPORTED (5u)
-#define THB_MAX_NPINS_SUPPORTED (67u)
-
-/* store Pin status */
-static u32 thb_pinx_status[THB_MAX_NPINS_SUPPORTED];
-
-struct thunderbay_mux_desc {
- u8 mode;
- const char *name;
-};
-
-#define THUNDERBAY_PIN_DESC(pin_number, pin_name, ...) { \
- .number = pin_number, \
- .name = pin_name, \
- .drv_data = &(struct thunderbay_mux_desc[]) { \
- __VA_ARGS__, { } }, \
-}
-
-#define THUNDERBAY_MUX(pin_mode, pin_function) { \
- .mode = pin_mode, \
- .name = pin_function, \
-}
-
-struct thunderbay_pin_soc {
- const struct pinctrl_pin_desc *pins;
- unsigned int npins;
-};
-
-/**
- * struct thunderbay_pinctrl - Intel Thunderbay pinctrl structure
- * @pctrl: Pointer to the pin controller device
- * @base0: First register base address
- * @dev: Pointer to the device structure
- * @chip: GPIO chip used by this pin controller
- * @soc: Pin control configuration data based on SoC
- * @ngroups: Number of pin groups available
- * @nfuncs: Number of pin functions available
- */
-struct thunderbay_pinctrl {
- struct pinctrl_dev *pctrl;
- void __iomem *base0;
- struct device *dev;
- struct gpio_chip chip;
- const struct thunderbay_pin_soc *soc;
- unsigned int ngroups;
- unsigned int nfuncs;
-};
-
-static const struct pinctrl_pin_desc thunderbay_pins[] = {
- THUNDERBAY_PIN_DESC(0, "GPIO0",
- THUNDERBAY_MUX(0X0, "I2C0_M0"),
- THUNDERBAY_MUX(0X1, "EMPTY_M1"),
- THUNDERBAY_MUX(0X2, "EMPTY_M2"),
- THUNDERBAY_MUX(0X3, "EMPTY_M3"),
- THUNDERBAY_MUX(0X4, "GPIO_M4")),
- THUNDERBAY_PIN_DESC(1, "GPIO1",
- THUNDERBAY_MUX(0X0, "I2C0_M0"),
- THUNDERBAY_MUX(0X1, "EMPTY_M1"),
- THUNDERBAY_MUX(0X2, "EMPTY_M2"),
- THUNDERBAY_MUX(0X3, "EMPTY_M3"),
- THUNDERBAY_MUX(0X4, "GPIO_M4")),
- THUNDERBAY_PIN_DESC(2, "GPIO2",
- THUNDERBAY_MUX(0X0, "I2C1_M0"),
- THUNDERBAY_MUX(0X1, "EMPTY_M1"),
- THUNDERBAY_MUX(0X2, "EMPTY_M2"),
- THUNDERBAY_MUX(0X3, "EMPTY_M3"),
- THUNDERBAY_MUX(0X4, "GPIO_M4")),
- THUNDERBAY_PIN_DESC(3, "GPIO3",
- THUNDERBAY_MUX(0X0, "I2C1_M0"),
- THUNDERBAY_MUX(0X1, "EMPTY_M1"),
- THUNDERBAY_MUX(0X2, "EMPTY_M2"),
- THUNDERBAY_MUX(0X3, "EMPTY_M3"),
- THUNDERBAY_MUX(0X4, "GPIO_M4")),
- THUNDERBAY_PIN_DESC(4, "GPIO4",
- THUNDERBAY_MUX(0X0, "I2C2_M0"),
- THUNDERBAY_MUX(0X1, "EMPTY_M1"),
- THUNDERBAY_MUX(0X2, "EMPTY_M2"),
- THUNDERBAY_MUX(0X3, "EMPTY_M3"),
- THUNDERBAY_MUX(0X4, "GPIO_M4")),
- THUNDERBAY_PIN_DESC(5, "GPIO5",
- THUNDERBAY_MUX(0X0, "I2C2_M0"),
- THUNDERBAY_MUX(0X1, "EMPTY_M1"),
- THUNDERBAY_MUX(0X2, "EMPTY_M2"),
- THUNDERBAY_MUX(0X3, "EMPTY_M3"),
- THUNDERBAY_MUX(0X4, "GPIO_M4")),
- THUNDERBAY_PIN_DESC(6, "GPIO6",
- THUNDERBAY_MUX(0X0, "I2C3_M0"),
- THUNDERBAY_MUX(0X1, "EMPTY_M1"),
- THUNDERBAY_MUX(0X2, "EMPTY_M2"),
- THUNDERBAY_MUX(0X3, "EMPTY_M3"),
- THUNDERBAY_MUX(0X4, "GPIO_M4")),
- THUNDERBAY_PIN_DESC(7, "GPIO7",
- THUNDERBAY_MUX(0X0, "I2C3_M0"),
- THUNDERBAY_MUX(0X1, "EMPTY_M1"),
- THUNDERBAY_MUX(0X2, "EMPTY_M2"),
- THUNDERBAY_MUX(0X3, "EMPTY_M3"),
- THUNDERBAY_MUX(0X4, "GPIO_M4")),
- THUNDERBAY_PIN_DESC(8, "GPIO8",
- THUNDERBAY_MUX(0X0, "I2C4_M0"),
- THUNDERBAY_MUX(0X1, "EMPTY_M1"),
- THUNDERBAY_MUX(0X2, "EMPTY_M2"),
- THUNDERBAY_MUX(0X3, "EMPTY_M3"),
- THUNDERBAY_MUX(0X4, "GPIO_M4")),
- THUNDERBAY_PIN_DESC(9, "GPIO9",
- THUNDERBAY_MUX(0X0, "I2C4_M0"),
- THUNDERBAY_MUX(0X1, "EMPTY_M1"),
- THUNDERBAY_MUX(0X2, "EMPTY_M2"),
- THUNDERBAY_MUX(0X3, "EMPTY_M3"),
- THUNDERBAY_MUX(0X4, "GPIO_M4")),
- THUNDERBAY_PIN_DESC(10, "GPIO10",
- THUNDERBAY_MUX(0X0, "UART0_M0"),
- THUNDERBAY_MUX(0X1, "RT0_DSU_M1"),
- THUNDERBAY_MUX(0X2, "EMPTY_M2"),
- THUNDERBAY_MUX(0X3, "EMPTY_M3"),
- THUNDERBAY_MUX(0X4, "GPIO_M4")),
- THUNDERBAY_PIN_DESC(11, "GPIO11",
- THUNDERBAY_MUX(0X0, "UART0_M0"),
- THUNDERBAY_MUX(0X1, "RT0_DSU_M1"),
- THUNDERBAY_MUX(0X2, "EMPTY_M2"),
- THUNDERBAY_MUX(0X3, "EMPTY_M3"),
- THUNDERBAY_MUX(0X4, "GPIO_M4")),
- THUNDERBAY_PIN_DESC(12, "GPIO12",
- THUNDERBAY_MUX(0X0, "UART0_M0"),
- THUNDERBAY_MUX(0X1, "RT1_DSU_M1"),
- THUNDERBAY_MUX(0X2, "EMPTY_M2"),
- THUNDERBAY_MUX(0X3, "EMPTY_M3"),
- THUNDERBAY_MUX(0X4, "GPIO_M4")),
- THUNDERBAY_PIN_DESC(13, "GPIO13",
- THUNDERBAY_MUX(0X0, "UART0_M0"),
- THUNDERBAY_MUX(0X1, "RT1_DSU_M1"),
- THUNDERBAY_MUX(0X2, "EMPTY_M2"),
- THUNDERBAY_MUX(0X3, "EMPTY_M3"),
- THUNDERBAY_MUX(0X4, "GPIO_M4")),
- THUNDERBAY_PIN_DESC(14, "GPIO14",
- THUNDERBAY_MUX(0X0, "UART1_M0"),
- THUNDERBAY_MUX(0X1, "RT2_DSU_M1"),
- THUNDERBAY_MUX(0X2, "EMPTY_M2"),
- THUNDERBAY_MUX(0X3, "TRIGGER_M3"),
- THUNDERBAY_MUX(0X4, "GPIO_M4")),
- THUNDERBAY_PIN_DESC(15, "GPIO15",
- THUNDERBAY_MUX(0X0, "UART1_M0"),
- THUNDERBAY_MUX(0X1, "RT2_DSU_M1"),
- THUNDERBAY_MUX(0X2, "EMPTY_M2"),
- THUNDERBAY_MUX(0X3, "TRIGGER_M3"),
- THUNDERBAY_MUX(0X4, "GPIO_M4")),
- THUNDERBAY_PIN_DESC(16, "GPIO16",
- THUNDERBAY_MUX(0X0, "UART1_M0"),
- THUNDERBAY_MUX(0X1, "RT3_DSU_M1"),
- THUNDERBAY_MUX(0X2, "EMPTY_M2"),
- THUNDERBAY_MUX(0X3, "EMPTY_M3"),
- THUNDERBAY_MUX(0X4, "GPIO_M4")),
- THUNDERBAY_PIN_DESC(17, "GPIO17",
- THUNDERBAY_MUX(0X0, "UART1_M0"),
- THUNDERBAY_MUX(0X1, "RT3_DSU_M1"),
- THUNDERBAY_MUX(0X2, "EMPTY_M2"),
- THUNDERBAY_MUX(0X3, "EMPTY_M3"),
- THUNDERBAY_MUX(0X4, "GPIO_M4")),
- THUNDERBAY_PIN_DESC(18, "GPIO18",
- THUNDERBAY_MUX(0X0, "SPI0_M0"),
- THUNDERBAY_MUX(0X1, "EMPTY_M1"),
- THUNDERBAY_MUX(0X2, "EMPTY_M2"),
- THUNDERBAY_MUX(0X3, "EMPTY_M3"),
- THUNDERBAY_MUX(0X4, "GPIO_M4")),
- THUNDERBAY_PIN_DESC(19, "GPIO19",
- THUNDERBAY_MUX(0X0, "SPI0_M0"),
- THUNDERBAY_MUX(0X1, "EMPTY_M1"),
- THUNDERBAY_MUX(0X2, "EMPTY_M2"),
- THUNDERBAY_MUX(0X3, "EMPTY_M3"),
- THUNDERBAY_MUX(0X4, "GPIO_M4")),
- THUNDERBAY_PIN_DESC(20, "GPIO20",
- THUNDERBAY_MUX(0X0, "SPI0_M0"),
- THUNDERBAY_MUX(0X1, "EMPTY_M1"),
- THUNDERBAY_MUX(0X2, "TPIU_TRACE_M2"),
- THUNDERBAY_MUX(0X3, "EMPTY_M3"),
- THUNDERBAY_MUX(0X4, "GPIO_M4")),
- THUNDERBAY_PIN_DESC(21, "GPIO21",
- THUNDERBAY_MUX(0X0, "SPI0_M0"),
- THUNDERBAY_MUX(0X1, "EMPTY_M1"),
- THUNDERBAY_MUX(0X2, "TPIU_TRACE_M2"),
- THUNDERBAY_MUX(0X3, "EMPTY_M3"),
- THUNDERBAY_MUX(0X4, "GPIO_M4")),
- THUNDERBAY_PIN_DESC(22, "GPIO22",
- THUNDERBAY_MUX(0X0, "SPI1_M0"),
- THUNDERBAY_MUX(0X1, "EMPTY_M0"),
- THUNDERBAY_MUX(0X2, "EMPTY_M2"),
- THUNDERBAY_MUX(0X3, "EMPTY_M3"),
- THUNDERBAY_MUX(0X4, "GPIO_M4")),
- THUNDERBAY_PIN_DESC(23, "GPIO23",
- THUNDERBAY_MUX(0X0, "SPI1_M0"),
- THUNDERBAY_MUX(0X1, "EMPTY_M1"),
- THUNDERBAY_MUX(0X2, "EMPTY_M2"),
- THUNDERBAY_MUX(0X3, "EMPTY_M3"),
- THUNDERBAY_MUX(0X4, "GPIO_M4")),
- THUNDERBAY_PIN_DESC(24, "GPIO24",
- THUNDERBAY_MUX(0X0, "SPI1_M0"),
- THUNDERBAY_MUX(0X1, "TPIU_TRACE_M1"),
- THUNDERBAY_MUX(0X2, "EMPTY_M2"),
- THUNDERBAY_MUX(0X3, "EMPTY_M3"),
- THUNDERBAY_MUX(0X4, "GPIO_M4")),
- THUNDERBAY_PIN_DESC(25, "GPIO25",
- THUNDERBAY_MUX(0X0, "SPI1_M0"),
- THUNDERBAY_MUX(0X1, "TPIU_TRACE_M1"),
- THUNDERBAY_MUX(0X2, "EMPTY_M2"),
- THUNDERBAY_MUX(0X3, "EMPTY_M3"),
- THUNDERBAY_MUX(0X4, "GPIO_M4")),
- THUNDERBAY_PIN_DESC(26, "GPIO26",
- THUNDERBAY_MUX(0X0, "ETHER0_M0"),
- THUNDERBAY_MUX(0X1, "TPIU_DATA_M1"),
- THUNDERBAY_MUX(0X2, "TPIU_DATA_M2"),
- THUNDERBAY_MUX(0X3, "DEBUG_M3"),
- THUNDERBAY_MUX(0X4, "GPIO_M4")),
- THUNDERBAY_PIN_DESC(27, "GPIO27",
- THUNDERBAY_MUX(0X0, "ETHER0_M0"),
- THUNDERBAY_MUX(0X1, "TPIU_DATA_M1"),
- THUNDERBAY_MUX(0X2, "TPIU_DATA_M2"),
- THUNDERBAY_MUX(0X3, "DEBUG_M3"),
- THUNDERBAY_MUX(0X4, "GPIO_M4")),
- THUNDERBAY_PIN_DESC(28, "GPIO28",
- THUNDERBAY_MUX(0X0, "ETHER0_M0"),
- THUNDERBAY_MUX(0X1, "TPIU_DATA_M1"),
- THUNDERBAY_MUX(0X2, "TPIU_DATA_M2"),
- THUNDERBAY_MUX(0X3, "DEBUG_M3"),
- THUNDERBAY_MUX(0X4, "GPIO_M4")),
- THUNDERBAY_PIN_DESC(29, "GPIO29",
- THUNDERBAY_MUX(0X0, "ETHER0_M0"),
- THUNDERBAY_MUX(0X1, "TPIU_DATA_M1"),
- THUNDERBAY_MUX(0X2, "TPIU_DATA_M2"),
- THUNDERBAY_MUX(0X3, "DEBUG_M3"),
- THUNDERBAY_MUX(0X4, "GPIO_M4")),
- THUNDERBAY_PIN_DESC(30, "GPIO30",
- THUNDERBAY_MUX(0X0, "ETHER0_M0"),
- THUNDERBAY_MUX(0X1, "TPIU_DATA_M1"),
- THUNDERBAY_MUX(0X2, "TPIU_DATA_M2"),
- THUNDERBAY_MUX(0X3, "DEBUG_M3"),
- THUNDERBAY_MUX(0X4, "GPIO_M4")),
- THUNDERBAY_PIN_DESC(31, "GPIO31",
- THUNDERBAY_MUX(0X0, "ETHER0_M0"),
- THUNDERBAY_MUX(0X1, "TPIU_DATA_M1"),
- THUNDERBAY_MUX(0X2, "TPIU_DATA_M2"),
- THUNDERBAY_MUX(0X3, "DEBUG_M3"),
- THUNDERBAY_MUX(0X4, "GPIO_M4")),
- THUNDERBAY_PIN_DESC(32, "GPIO32",
- THUNDERBAY_MUX(0X0, "ETHER0_M0"),
- THUNDERBAY_MUX(0X1, "TPIU_DATA_M1"),
- THUNDERBAY_MUX(0X2, "TPIU_DATA_M2"),
- THUNDERBAY_MUX(0X3, "DEBUG_M3"),
- THUNDERBAY_MUX(0X4, "GPIO_M4")),
- THUNDERBAY_PIN_DESC(33, "GPIO33",
- THUNDERBAY_MUX(0X0, "ETHER0_M0"),
- THUNDERBAY_MUX(0X1, "TPIU_DATA_M1"),
- THUNDERBAY_MUX(0X2, "TPIU_DATA_M2"),
- THUNDERBAY_MUX(0X3, "DEBUG_M3"),
- THUNDERBAY_MUX(0X4, "GPIO_M4")),
- THUNDERBAY_PIN_DESC(34, "GPIO34",
- THUNDERBAY_MUX(0X0, "ETHER0_M0"),
- THUNDERBAY_MUX(0X1, "TPIU_DATA_M1"),
- THUNDERBAY_MUX(0X2, "TPIU_DATA_M2"),
- THUNDERBAY_MUX(0X3, "DIG_VIEW_0"),
- THUNDERBAY_MUX(0X4, "GPIO_M4")),
- THUNDERBAY_PIN_DESC(35, "GPIO35",
- THUNDERBAY_MUX(0X0, "ETHER0_M0"),
- THUNDERBAY_MUX(0X1, "TPIU_DATA_M1"),
- THUNDERBAY_MUX(0X2, "TPIU_DATA_M2"),
- THUNDERBAY_MUX(0X3, "DIG_VIEW_1"),
- THUNDERBAY_MUX(0X4, "GPIO_M4")),
- THUNDERBAY_PIN_DESC(36, "GPIO36",
- THUNDERBAY_MUX(0X0, "ETHER0_M0"),
- THUNDERBAY_MUX(0X1, "TPIU_DATA_M1"),
- THUNDERBAY_MUX(0X2, "TPIU_DATA_M2"),
- THUNDERBAY_MUX(0X3, "CPR_IO_OUT_CLK_0"),
- THUNDERBAY_MUX(0X4, "GPIO_M4")),
- THUNDERBAY_PIN_DESC(37, "GPIO37",
- THUNDERBAY_MUX(0X0, "ETHER0_M0"),
- THUNDERBAY_MUX(0X1, "TPIU_DATA_M1"),
- THUNDERBAY_MUX(0X2, "TPIU_DATA_M2"),
- THUNDERBAY_MUX(0X3, "CPR_IO_OUT_CLK_1"),
- THUNDERBAY_MUX(0X4, "GPIO_M4")),
- THUNDERBAY_PIN_DESC(38, "GPIO38",
- THUNDERBAY_MUX(0X0, "ETHER0_M0"),
- THUNDERBAY_MUX(0X1, "TPIU_DATA_M1"),
- THUNDERBAY_MUX(0X2, "TPIU_DATA_M2"),
- THUNDERBAY_MUX(0X3, "CPR_IO_OUT_CLK_2"),
- THUNDERBAY_MUX(0X4, "GPIO_M4")),
- THUNDERBAY_PIN_DESC(39, "GPIO39",
- THUNDERBAY_MUX(0X0, "ETHER0_M0"),
- THUNDERBAY_MUX(0X1, "TPIU_DATA_M1"),
- THUNDERBAY_MUX(0X2, "TPIU_DATA_M2"),
- THUNDERBAY_MUX(0X3, "CPR_IO_OUT_CLK_3"),
- THUNDERBAY_MUX(0X4, "GPIO_M4")),
- THUNDERBAY_PIN_DESC(40, "GPIO40",
- THUNDERBAY_MUX(0X0, "ETHER0_M0"),
- THUNDERBAY_MUX(0X1, "TPIU_DATA_M1"),
- THUNDERBAY_MUX(0X2, "TPIU_DATA_M2"),
- THUNDERBAY_MUX(0X3, "EMPTY_M3"),
- THUNDERBAY_MUX(0X4, "GPIO_M4")),
- THUNDERBAY_PIN_DESC(41, "GPIO41",
- THUNDERBAY_MUX(0X0, "POWER_INTERRUPT_MAX_PLATFORM_POWER_M0"),
- THUNDERBAY_MUX(0X1, "TPIU_DATA_M1"),
- THUNDERBAY_MUX(0X2, "TPIU_DATA_M2"),
- THUNDERBAY_MUX(0X3, "EMPTY_M3"),
- THUNDERBAY_MUX(0X4, "GPIO_M4")),
- THUNDERBAY_PIN_DESC(42, "GPIO42",
- THUNDERBAY_MUX(0X0, "ETHER1_M0"),
- THUNDERBAY_MUX(0X1, "TPIU_DATA_M1"),
- THUNDERBAY_MUX(0X2, "TPIU_DATA_M2"),
- THUNDERBAY_MUX(0X3, "DEBUG_M3"),
- THUNDERBAY_MUX(0X4, "GPIO_M4")),
- THUNDERBAY_PIN_DESC(43, "GPIO43",
- THUNDERBAY_MUX(0X0, "ETHER1_M0"),
- THUNDERBAY_MUX(0X1, "TPIU_DATA_M1"),
- THUNDERBAY_MUX(0X2, "TPIU_DATA_M2"),
- THUNDERBAY_MUX(0X3, "DEBUG_M3"),
- THUNDERBAY_MUX(0X4, "GPIO_M4")),
- THUNDERBAY_PIN_DESC(44, "GPIO44",
- THUNDERBAY_MUX(0X0, "ETHER1_M0"),
- THUNDERBAY_MUX(0X1, "TPIU_DATA_M1"),
- THUNDERBAY_MUX(0X2, "TPIU_DATA_M2"),
- THUNDERBAY_MUX(0X3, "DEBUG_M3"),
- THUNDERBAY_MUX(0X4, "GPIO_M4")),
- THUNDERBAY_PIN_DESC(45, "GPIO45",
- THUNDERBAY_MUX(0X0, "ETHER1_M0"),
- THUNDERBAY_MUX(0X1, "TPIU_DATA_M1"),
- THUNDERBAY_MUX(0X2, "TPIU_DATA_M2"),
- THUNDERBAY_MUX(0X3, "DEBUG_M3"),
- THUNDERBAY_MUX(0X4, "GPIO_M4")),
- THUNDERBAY_PIN_DESC(46, "GPIO46",
- THUNDERBAY_MUX(0X0, "ETHER1_M0"),
- THUNDERBAY_MUX(0X1, "TPIU_DATA_M1"),
- THUNDERBAY_MUX(0X2, "TPIU_DATA_M2"),
- THUNDERBAY_MUX(0X3, "DEBUG_M3"),
- THUNDERBAY_MUX(0X4, "GPIO_M4")),
- THUNDERBAY_PIN_DESC(47, "GPIO47",
- THUNDERBAY_MUX(0X0, "ETHER1_M0"),
- THUNDERBAY_MUX(0X1, "TPIU_DATA_M1"),
- THUNDERBAY_MUX(0X2, "TPIU_DATA_M2"),
- THUNDERBAY_MUX(0X3, "DEBUG_M3"),
- THUNDERBAY_MUX(0X4, "GPIO_M4")),
- THUNDERBAY_PIN_DESC(48, "GPIO48",
- THUNDERBAY_MUX(0X0, "ETHER1_M0"),
- THUNDERBAY_MUX(0X1, "TPIU_DATA_M1"),
- THUNDERBAY_MUX(0X2, "TPIU_DATA_M2"),
- THUNDERBAY_MUX(0X3, "DEBUG_M3"),
- THUNDERBAY_MUX(0X4, "GPIO_M4")),
- THUNDERBAY_PIN_DESC(49, "GPIO49",
- THUNDERBAY_MUX(0X0, "ETHER1_M0"),
- THUNDERBAY_MUX(0X1, "TPIU_DATA_M1"),
- THUNDERBAY_MUX(0X2, "TPIU_DATA_M2"),
- THUNDERBAY_MUX(0X3, "DEBUG_M3"),
- THUNDERBAY_MUX(0X4, "GPIO_M4")),
- THUNDERBAY_PIN_DESC(50, "GPIO50",
- THUNDERBAY_MUX(0X0, "ETHER1_M0"),
- THUNDERBAY_MUX(0X1, "TPIU_DATA_M1"),
- THUNDERBAY_MUX(0X2, "TPIU_DATA_M2"),
- THUNDERBAY_MUX(0X3, "DIG_VIEW_0"),
- THUNDERBAY_MUX(0X4, "GPIO_M4")),
- THUNDERBAY_PIN_DESC(51, "GPIO51",
- THUNDERBAY_MUX(0X0, "ETHER1_M0"),
- THUNDERBAY_MUX(0X1, "TPIU_DATA_M1"),
- THUNDERBAY_MUX(0X2, "TPIU_DATA_M2"),
- THUNDERBAY_MUX(0X3, "DIG_VIEW_1"),
- THUNDERBAY_MUX(0X4, "GPIO_M4")),
- THUNDERBAY_PIN_DESC(52, "GPIO52",
- THUNDERBAY_MUX(0X0, "ETHER1_M0"),
- THUNDERBAY_MUX(0X1, "TPIU_DATA_M1"),
- THUNDERBAY_MUX(0X2, "TPIU_DATA_M2"),
- THUNDERBAY_MUX(0X3, "CPR_IO_OUT_CLK_0"),
- THUNDERBAY_MUX(0X4, "GPIO_M4")),
- THUNDERBAY_PIN_DESC(53, "GPIO53",
- THUNDERBAY_MUX(0X0, "ETHER1_M0"),
- THUNDERBAY_MUX(0X1, "TPIU_DATA_M1"),
- THUNDERBAY_MUX(0X2, "TPIU_DATA_M2"),
- THUNDERBAY_MUX(0X3, "CPR_IO_OUT_CLK_1"),
- THUNDERBAY_MUX(0X4, "GPIO_M4")),
- THUNDERBAY_PIN_DESC(54, "GPIO54",
- THUNDERBAY_MUX(0X0, "ETHER1_M0"),
- THUNDERBAY_MUX(0X1, "TPIU_DATA_M1"),
- THUNDERBAY_MUX(0X2, "TPIU_DATA_M2"),
- THUNDERBAY_MUX(0X3, "CPR_IO_OUT_CLK_2"),
- THUNDERBAY_MUX(0X4, "GPIO_M4")),
- THUNDERBAY_PIN_DESC(55, "GPIO55",
- THUNDERBAY_MUX(0X0, "ETHER1_M0"),
- THUNDERBAY_MUX(0X1, "TPIU_DATA_M1"),
- THUNDERBAY_MUX(0X2, "TPIU_DATA_M2"),
- THUNDERBAY_MUX(0X3, "CPR_IO_OUT_CLK_3"),
- THUNDERBAY_MUX(0X4, "GPIO_M4")),
- THUNDERBAY_PIN_DESC(56, "GPIO56",
- THUNDERBAY_MUX(0X0, "ETHER1_M0"),
- THUNDERBAY_MUX(0X1, "TPIU_DATA_M1"),
- THUNDERBAY_MUX(0X2, "TPIU_DATA_M2"),
- THUNDERBAY_MUX(0X3, "POWER_INTERRUPT_ICCMAX_VDDD_M3"),
- THUNDERBAY_MUX(0X4, "GPIO_M4")),
- THUNDERBAY_PIN_DESC(57, "GPIO57",
- THUNDERBAY_MUX(0X0, "POWER_INTERRUPT_ICCMAX_VPU_M0"),
- THUNDERBAY_MUX(0X1, "TPIU_DATA_M1"),
- THUNDERBAY_MUX(0X2, "TPIU_DATA_M2"),
- THUNDERBAY_MUX(0X3, "EMPTY_M3"),
- THUNDERBAY_MUX(0X4, "GPIO_M4")),
- THUNDERBAY_PIN_DESC(58, "GPIO58",
- THUNDERBAY_MUX(0X0, "THERMTRIP_M0"),
- THUNDERBAY_MUX(0X1, "EMPTY_M1"),
- THUNDERBAY_MUX(0X2, "EMPTY_M2"),
- THUNDERBAY_MUX(0X3, "EMPTY_M3"),
- THUNDERBAY_MUX(0X4, "GPIO_M4")),
- THUNDERBAY_PIN_DESC(59, "GPIO59",
- THUNDERBAY_MUX(0X0, "THERMTRIP_M0"),
- THUNDERBAY_MUX(0X1, "EMPTY_M1"),
- THUNDERBAY_MUX(0X2, "EMPTY_M2"),
- THUNDERBAY_MUX(0X3, "EMPTY_M3"),
- THUNDERBAY_MUX(0X4, "GPIO_M4")),
- THUNDERBAY_PIN_DESC(60, "GPIO60",
- THUNDERBAY_MUX(0X0, "SMBUS_M0"),
- THUNDERBAY_MUX(0X1, "EMPTY_M1"),
- THUNDERBAY_MUX(0X2, "EMPTY_M2"),
- THUNDERBAY_MUX(0X3, "EMPTY_M3"),
- THUNDERBAY_MUX(0X4, "GPIO_M4")),
- THUNDERBAY_PIN_DESC(61, "GPIO61",
- THUNDERBAY_MUX(0X0, "SMBUS_M0"),
- THUNDERBAY_MUX(0X1, "EMPTY_M1"),
- THUNDERBAY_MUX(0X2, "EMPTY_M2"),
- THUNDERBAY_MUX(0X3, "POWER_INTERRUPT_ICCMAX_VDDD_M3"),
- THUNDERBAY_MUX(0X4, "GPIO_M4")),
- THUNDERBAY_PIN_DESC(62, "GPIO62",
- THUNDERBAY_MUX(0X0, "PLATFORM_RESET_M0"),
- THUNDERBAY_MUX(0X1, "EMPTY_M1"),
- THUNDERBAY_MUX(0X2, "EMPTY_M2"),
- THUNDERBAY_MUX(0X3, "EMPTY_M3"),
- THUNDERBAY_MUX(0X4, "GPIO_M4")),
- THUNDERBAY_PIN_DESC(63, "GPIO63",
- THUNDERBAY_MUX(0X0, "PLATFORM_RESET_M0"),
- THUNDERBAY_MUX(0X1, "EMPTY_M1"),
- THUNDERBAY_MUX(0X2, "EMPTY_M2"),
- THUNDERBAY_MUX(0X3, "EMPTY_M3"),
- THUNDERBAY_MUX(0X4, "GPIO_M4")),
- THUNDERBAY_PIN_DESC(64, "GPIO64",
- THUNDERBAY_MUX(0X0, "PLATFORM_SHUTDOWN_M0"),
- THUNDERBAY_MUX(0X1, "EMPTY_M1"),
- THUNDERBAY_MUX(0X2, "EMPTY_M2"),
- THUNDERBAY_MUX(0X3, "EMPTY_M3"),
- THUNDERBAY_MUX(0X4, "GPIO_M4")),
- THUNDERBAY_PIN_DESC(65, "GPIO65",
- THUNDERBAY_MUX(0X0, "PLATFORM_SHUTDOWN_M0"),
- THUNDERBAY_MUX(0X1, "EMPTY_M1"),
- THUNDERBAY_MUX(0X2, "EMPTY_M2"),
- THUNDERBAY_MUX(0X3, "EMPTY_M3"),
- THUNDERBAY_MUX(0X4, "GPIO_M4")),
- THUNDERBAY_PIN_DESC(66, "GPIO66",
- THUNDERBAY_MUX(0X0, "POWER_INTERRUPT_ICCMAX_MEDIA_M0"),
- THUNDERBAY_MUX(0X1, "EMPTY_M1"),
- THUNDERBAY_MUX(0X2, "EMPTY_M2"),
- THUNDERBAY_MUX(0X3, "EMPTY_M3"),
- THUNDERBAY_MUX(0X4, "GPIO_M4")),
-};
-
-static const struct thunderbay_pin_soc thunderbay_data = {
- .pins = thunderbay_pins,
- .npins = ARRAY_SIZE(thunderbay_pins),
-};
-
-static u32 thb_gpio_read_reg(struct gpio_chip *chip, unsigned int pinnr)
-{
- struct thunderbay_pinctrl *tpc = gpiochip_get_data(chip);
-
- return readl(tpc->base0 + THB_GPIO_REG_OFFSET(pinnr));
-}
-
-static u32 thb_gpio_write_reg(struct gpio_chip *chip, unsigned int pinnr, u32 value)
-{
- struct thunderbay_pinctrl *tpc = gpiochip_get_data(chip);
-
- writel(value, (tpc->base0 + THB_GPIO_REG_OFFSET(pinnr)));
- return 0;
-}
-
-static int thb_read_gpio_data(struct gpio_chip *chip, unsigned int offset, unsigned int pad_dir)
-{
- int data_offset;
- u32 data_reg;
-
- /* as per GPIO Spec = pad_dir 0:input, 1:output */
- data_offset = 0x2000u + (offset / 32);
- if (!pad_dir)
- data_offset += 4;
- data_reg = thb_gpio_read_reg(chip, data_offset);
-
- return data_reg & BIT(offset % 32);
-}
-
-static int thb_write_gpio_data(struct gpio_chip *chip, unsigned int offset, unsigned int value)
-{
- int data_offset;
- u32 data_reg;
-
- data_offset = 0x2000u + (offset / 32);
-
- data_reg = thb_gpio_read_reg(chip, data_offset);
-
- if (value > 0)
- data_reg |= BIT(offset % 32);
- else
- data_reg &= ~BIT(offset % 32);
-
- return thb_gpio_write_reg(chip, data_offset, data_reg);
-}
-
-static int thunderbay_gpio_get_direction(struct gpio_chip *chip, unsigned int offset)
-{
- u32 reg = thb_gpio_read_reg(chip, offset);
-
- /* Return direction only if configured as GPIO else negative error */
- if (reg & THB_GPIO_PORT_SELECT_MASK)
- return !(reg & THB_GPIO_PAD_DIRECTION_MASK);
- return -EINVAL;
-}
-
-static int thunderbay_gpio_set_direction_input(struct gpio_chip *chip, unsigned int offset)
-{
- u32 reg = thb_gpio_read_reg(chip, offset);
-
- /* set pin as input only if it is GPIO else error */
- if (reg & THB_GPIO_PORT_SELECT_MASK) {
- reg &= (~THB_GPIO_PAD_DIRECTION_MASK);
- thb_gpio_write_reg(chip, offset, reg);
- return 0;
- }
- return -EINVAL;
-}
-
-static void thunderbay_gpio_set_value(struct gpio_chip *chip, unsigned int offset, int value)
-{
- u32 reg = thb_gpio_read_reg(chip, offset);
-
- /* update pin value only if it is GPIO-output else error */
- if ((reg & THB_GPIO_PORT_SELECT_MASK) && (reg & THB_GPIO_PAD_DIRECTION_MASK))
- thb_write_gpio_data(chip, offset, value);
-}
-
-static int thunderbay_gpio_set_direction_output(struct gpio_chip *chip,
- unsigned int offset, int value)
-{
- u32 reg = thb_gpio_read_reg(chip, offset);
-
- /* set pin as output only if it is GPIO else error */
- if (reg & THB_GPIO_PORT_SELECT_MASK) {
- reg |= THB_GPIO_PAD_DIRECTION_MASK;
- thb_gpio_write_reg(chip, offset, reg);
- thunderbay_gpio_set_value(chip, offset, value);
- return 0;
- }
- return -EINVAL;
-}
-
-static int thunderbay_gpio_get_value(struct gpio_chip *chip, unsigned int offset)
-{
- u32 reg = thb_gpio_read_reg(chip, offset);
- int gpio_dir = 0;
-
- /* Read pin value only if it is GPIO else error */
- if (reg & THB_GPIO_PORT_SELECT_MASK) {
- /* 0=in, 1=out */
- gpio_dir = (reg & THB_GPIO_PAD_DIRECTION_MASK) > 0;
-
- /* Returns negative value when pin is configured as PORT */
- return thb_read_gpio_data(chip, offset, gpio_dir);
- }
- return -EINVAL;
-}
-
-static int thunderbay_gpiochip_probe(struct thunderbay_pinctrl *tpc)
-{
- struct gpio_chip *chip = &tpc->chip;
- int ret;
-
- chip->label = dev_name(tpc->dev);
- chip->parent = tpc->dev;
- chip->request = gpiochip_generic_request;
- chip->free = gpiochip_generic_free;
- chip->get_direction = thunderbay_gpio_get_direction;
- chip->direction_input = thunderbay_gpio_set_direction_input;
- chip->direction_output = thunderbay_gpio_set_direction_output;
- chip->get = thunderbay_gpio_get_value;
- chip->set = thunderbay_gpio_set_value;
- chip->set_config = gpiochip_generic_config;
- /* identifies the first GPIO number handled by this chip; or,
- * if negative during registration, requests dynamic ID allocation.
- * Please pass -1 as base to let gpiolib select the chip base in all possible cases.
- * We want to get rid of the static GPIO number space in the long run.
- */
- chip->base = -1;
- /* Number of GPIOs handled by this controller; the last GPIO handled is (base + ngpio - 1)*/
- chip->ngpio = THB_MAX_NPINS_SUPPORTED;
-
- /* Register/add Thunder Bay GPIO chip with Linux framework */
- ret = gpiochip_add_data(chip, tpc);
- if (ret)
- dev_err(tpc->dev, "Failed to add gpiochip\n");
- return ret;
-}
-
-static int thunderbay_request_gpio(struct pinctrl_dev *pctldev,
- struct pinctrl_gpio_range *range,
- unsigned int pin)
-{
- struct thunderbay_pinctrl *tpc = pinctrl_dev_get_drvdata(pctldev);
- struct gpio_chip *chip = &tpc->chip;
- u32 reg = 0;
-
- if (thb_pinx_status[pin] == 0u) {
- reg = thb_gpio_read_reg(chip, pin);
- /* Updates PIN configuration as GPIO and sets GPIO to MODE-4*/
- reg |= (THB_GPIO_PORT_SELECT_MASK | THB_GPIO_PINMUX_MODE_4);
- thb_gpio_write_reg(chip, pin, reg);
-
- /* update pin status as busy */
- thb_pinx_status[pin] = 1u;
-
- return 0;
- }
- return -EINVAL;
-}
-
-static void thunderbay_free_gpio(struct pinctrl_dev *pctldev,
- struct pinctrl_gpio_range *range,
- unsigned int pin)
-{
- struct thunderbay_pinctrl *tpc = pinctrl_dev_get_drvdata(pctldev);
- struct gpio_chip *chip = &tpc->chip;
- u32 reg = 0;
-
- if (thb_pinx_status[pin] == 1u) {
- reg = thb_gpio_read_reg(chip, pin);
-
- /* Updates PIN configuration from GPIO to PORT */
- reg &= (~THB_GPIO_PORT_SELECT_MASK);
-
- /* Change Port/gpio mode to default mode-0 */
- reg &= (~THB_GPIO_PINMUX_MODE_4);
-
- thb_gpio_write_reg(chip, pin, reg);
-
- /* update pin status as free */
- thb_pinx_status[pin] = 0u;
- }
-}
-
-static int thb_pinctrl_set_mux(struct pinctrl_dev *pctldev,
- unsigned int func_select, unsigned int group_select)
-{
- struct thunderbay_pinctrl *tpc = pinctrl_dev_get_drvdata(pctldev);
- struct gpio_chip *chip = &tpc->chip;
- struct function_desc *function;
- unsigned int i, pin_mode;
- struct group_desc *group;
- int ret = -EINVAL;
- u32 reg = 0u;
-
- group = pinctrl_generic_get_group(pctldev, group_select);
- if (!group)
- return -EINVAL;
-
- function = pinmux_generic_get_function(pctldev, func_select);
- if (!function)
- return -EINVAL;
-
- pin_mode = *(unsigned int *)(function->data);
-
- /* Change modes for pins in the selected group */
- for (i = 0; i < group->num_pins; i++) {
- reg = thb_gpio_read_reg(chip, group->pins[i]);
-
- switch (pin_mode) {
- case 0u:
- reg |= THB_GPIO_PINMUX_MODE_0;
- break;
- case 1u:
- reg |= THB_GPIO_PINMUX_MODE_1;
- break;
- case 2u:
- reg |= THB_GPIO_PINMUX_MODE_2;
- break;
- case 3u:
- reg |= THB_GPIO_PINMUX_MODE_3;
- break;
- case 4u:
- reg |= THB_GPIO_PINMUX_MODE_4;
- break;
- default:
- return -EINVAL;
- }
-
- ret = thb_gpio_write_reg(chip, group->pins[i], reg);
- if (~ret) {
- /* update pin status as busy */
- thb_pinx_status[group->pins[i]] = 1u;
- }
- }
- return ret;
-}
-
-static int thunderbay_build_groups(struct thunderbay_pinctrl *tpc)
-{
- struct group_desc *thunderbay_groups;
- int i;
-
- tpc->ngroups = tpc->soc->npins;
- thunderbay_groups = devm_kcalloc(tpc->dev, tpc->ngroups,
- sizeof(*thunderbay_groups), GFP_KERNEL);
- if (!thunderbay_groups)
- return -ENOMEM;
-
- for (i = 0; i < tpc->ngroups; i++) {
- struct group_desc *group = thunderbay_groups + i;
- const struct pinctrl_pin_desc *pin_info = thunderbay_pins + i;
-
- group->name = pin_info->name;
- group->pins = (int *)&pin_info->number;
- pinctrl_generic_add_group(tpc->pctrl, group->name,
- group->pins, 1, NULL);
- }
- return 0;
-}
-
-static int thunderbay_add_functions(struct thunderbay_pinctrl *tpc, struct function_desc *funcs)
-{
- int i;
-
- /* Assign the groups for each function */
- for (i = 0; i < tpc->nfuncs; i++) {
- struct function_desc *func = &funcs[i];
- const char **group_names;
- unsigned int grp_idx = 0;
- int j;
-
- group_names = devm_kcalloc(tpc->dev, func->num_group_names,
- sizeof(*group_names), GFP_KERNEL);
- if (!group_names)
- return -ENOMEM;
-
- for (j = 0; j < tpc->soc->npins; j++) {
- const struct pinctrl_pin_desc *pin_info = &thunderbay_pins[j];
- struct thunderbay_mux_desc *pin_mux;
-
- for (pin_mux = pin_info->drv_data; pin_mux->name; pin_mux++) {
- if (!strcmp(pin_mux->name, func->name))
- group_names[grp_idx++] = pin_info->name;
- }
- }
-
- func->group_names = group_names;
- }
-
- /* Add all functions */
- for (i = 0; i < tpc->nfuncs; i++) {
- pinmux_generic_add_function(tpc->pctrl,
- funcs[i].name,
- funcs[i].group_names,
- funcs[i].num_group_names,
- funcs[i].data);
- }
-
- return 0;
-}
-
-static int thunderbay_build_functions(struct thunderbay_pinctrl *tpc)
-{
- struct function_desc *thunderbay_funcs;
- void *ptr;
- int pin;
- int ret;
-
- /*
- * Allocate maximum possible number of functions. Assume every pin
- * being part of 8 (hw maximum) globally unique muxes.
- */
- tpc->nfuncs = 0;
- thunderbay_funcs = kcalloc(tpc->soc->npins * 8,
- sizeof(*thunderbay_funcs), GFP_KERNEL);
- if (!thunderbay_funcs)
- return -ENOMEM;
-
- /* Setup 1 function for each unique mux */
- for (pin = 0; pin < tpc->soc->npins; pin++) {
- const struct pinctrl_pin_desc *pin_info = thunderbay_pins + pin;
- struct thunderbay_mux_desc *pin_mux;
-
- for (pin_mux = pin_info->drv_data; pin_mux->name; pin_mux++) {
- struct function_desc *func;
-
- /* Check if we already have function for this mux */
- for (func = thunderbay_funcs; func->name; func++) {
- if (!strcmp(pin_mux->name, func->name)) {
- func->num_group_names++;
- break;
- }
- }
-
- if (!func->name) {
- func->name = pin_mux->name;
- func->num_group_names = 1;
- func->data = (int *)&pin_mux->mode;
- tpc->nfuncs++;
- }
- }
- }
-
- /* Reallocate memory based on actual number of functions */
- ptr = krealloc(thunderbay_funcs,
- tpc->nfuncs * sizeof(*thunderbay_funcs), GFP_KERNEL);
- if (!ptr)
- return -ENOMEM;
-
- thunderbay_funcs = ptr;
- ret = thunderbay_add_functions(tpc, thunderbay_funcs);
-
- kfree(thunderbay_funcs);
- return ret;
-}
-
-static int thunderbay_pinconf_set_tristate(struct thunderbay_pinctrl *tpc,
- unsigned int pin, u32 config)
-{
- struct gpio_chip *chip = &tpc->chip;
- u32 reg;
-
- reg = thb_gpio_read_reg(chip, pin);
- if (config > 0)
- reg |= THB_GPIO_ENAQ_MASK;
- else
- reg &= ~THB_GPIO_ENAQ_MASK;
-
- return thb_gpio_write_reg(chip, pin, reg);
-}
-
-static int thunderbay_pinconf_get_tristate(struct thunderbay_pinctrl *tpc,
- unsigned int pin, u32 *config)
-{
- struct gpio_chip *chip = &tpc->chip;
- u32 reg;
-
- reg = thb_gpio_read_reg(chip, pin);
- *config = (reg & THB_GPIO_ENAQ_MASK) > 0;
-
- return 0;
-}
-
-static int thunderbay_pinconf_set_pulldown(struct thunderbay_pinctrl *tpc,
- unsigned int pin, u32 config)
-{
- struct gpio_chip *chip = &tpc->chip;
- u32 reg;
-
- reg = thb_gpio_read_reg(chip, pin);
- if (config > 0)
- reg |= THB_GPIO_PULL_DOWN_MASK;
- else
- reg &= ~THB_GPIO_PULL_DOWN_MASK;
-
- return thb_gpio_write_reg(chip, pin, reg);
-}
-
-static int thunderbay_pinconf_get_pulldown(struct thunderbay_pinctrl *tpc,
- unsigned int pin, u32 *config)
-{
- struct gpio_chip *chip = &tpc->chip;
- u32 reg = 0;
-
- reg = thb_gpio_read_reg(chip, pin);
- *config = ((reg & THB_GPIO_PULL_DOWN_MASK) > 0) ? 1 : 0;
-
- return 0;
-}
-
-static int thunderbay_pinconf_set_pullup(struct thunderbay_pinctrl *tpc,
- unsigned int pin, u32 config)
-{
- struct gpio_chip *chip = &tpc->chip;
- u32 reg;
-
- reg = thb_gpio_read_reg(chip, pin);
- if (config > 0)
- reg &= ~THB_GPIO_PULL_UP_MASK;
- else
- reg |= THB_GPIO_PULL_UP_MASK;
-
- return thb_gpio_write_reg(chip, pin, reg);
-}
-
-static int thunderbay_pinconf_get_pullup(struct thunderbay_pinctrl *tpc,
- unsigned int pin, u32 *config)
-{
- struct gpio_chip *chip = &tpc->chip;
- u32 reg;
-
- reg = thb_gpio_read_reg(chip, pin);
- *config = ((reg & THB_GPIO_PULL_UP_MASK) == 0) ? 1 : 0;
-
- return 0;
-}
-
-static int thunderbay_pinconf_set_opendrain(struct thunderbay_pinctrl *tpc,
- unsigned int pin, u32 config)
-{
- struct gpio_chip *chip = &tpc->chip;
- u32 reg;
-
- reg = thb_gpio_read_reg(chip, pin);
- if (config > 0)
- reg &= ~THB_GPIO_PULL_ENABLE_MASK;
- else
- reg |= THB_GPIO_PULL_ENABLE_MASK;
-
- return thb_gpio_write_reg(chip, pin, reg);
-}
-
-static int thunderbay_pinconf_get_opendrain(struct thunderbay_pinctrl *tpc,
- unsigned int pin, u32 *config)
-{
- struct gpio_chip *chip = &tpc->chip;
- u32 reg;
-
- reg = thb_gpio_read_reg(chip, pin);
- *config = ((reg & THB_GPIO_PULL_ENABLE_MASK) == 0) ? 1 : 0;
-
- return 0;
-}
-
-static int thunderbay_pinconf_set_pushpull(struct thunderbay_pinctrl *tpc,
- unsigned int pin, u32 config)
-{
- struct gpio_chip *chip = &tpc->chip;
- u32 reg;
-
- reg = thb_gpio_read_reg(chip, pin);
- if (config > 0)
- reg |= THB_GPIO_PULL_ENABLE_MASK;
- else
- reg &= ~THB_GPIO_PULL_ENABLE_MASK;
-
- return thb_gpio_write_reg(chip, pin, reg);
-}
-
-static int thunderbay_pinconf_get_pushpull(struct thunderbay_pinctrl *tpc,
- unsigned int pin, u32 *config)
-{
- struct gpio_chip *chip = &tpc->chip;
- u32 reg;
-
- reg = thb_gpio_read_reg(chip, pin);
- *config = ((reg & THB_GPIO_PULL_ENABLE_MASK) > 0) ? 1 : 0;
-
- return 0;
-}
-
-static int thunderbay_pinconf_set_drivestrength(struct thunderbay_pinctrl *tpc,
- unsigned int pin, u32 config)
-{
- struct gpio_chip *chip = &tpc->chip;
- u32 reg;
-
- reg = thb_gpio_read_reg(chip, pin);
-
- /* Drive Strength: 0x0 to 0xF */
- if (config <= 0xF) {
- reg = (reg | config);
- return thb_gpio_write_reg(chip, pin, reg);
- }
-
- return -EINVAL;
-}
-
-static int thunderbay_pinconf_get_drivestrength(struct thunderbay_pinctrl *tpc,
- unsigned int pin, u32 *config)
-{
- struct gpio_chip *chip = &tpc->chip;
- u32 reg;
-
- reg = thb_gpio_read_reg(chip, pin);
- reg = (reg & THB_GPIO_DRIVE_STRENGTH_MASK) >> 16;
- *config = (reg > 0) ? reg : 0;
-
- return 0;
-}
-
-static int thunderbay_pinconf_set_schmitt(struct thunderbay_pinctrl *tpc,
- unsigned int pin, u32 config)
-{
- struct gpio_chip *chip = &tpc->chip;
- u32 reg;
-
- reg = thb_gpio_read_reg(chip, pin);
- if (config > 0)
- reg |= THB_GPIO_SCHMITT_TRIGGER_MASK;
- else
- reg &= ~THB_GPIO_SCHMITT_TRIGGER_MASK;
-
- return thb_gpio_write_reg(chip, pin, reg);
-}
-
-static int thunderbay_pinconf_get_schmitt(struct thunderbay_pinctrl *tpc,
- unsigned int pin, u32 *config)
-{
- struct gpio_chip *chip = &tpc->chip;
- u32 reg;
-
- reg = thb_gpio_read_reg(chip, pin);
- *config = ((reg & THB_GPIO_SCHMITT_TRIGGER_MASK) > 0) ? 1 : 0;
-
- return 0;
-}
-
-static int thunderbay_pinconf_set_slew_rate(struct thunderbay_pinctrl *tpc,
- unsigned int pin, u32 config)
-{
- struct gpio_chip *chip = &tpc->chip;
- u32 reg = 0;
-
- reg = thb_gpio_read_reg(chip, pin);
- if (config > 0)
- reg |= THB_GPIO_SLEW_RATE_MASK;
- else
- reg &= ~THB_GPIO_SLEW_RATE_MASK;
-
- return thb_gpio_write_reg(chip, pin, reg);
-}
-
-static int thunderbay_pinconf_get_slew_rate(struct thunderbay_pinctrl *tpc,
- unsigned int pin, u32 *config)
-{
- struct gpio_chip *chip = &tpc->chip;
- u32 reg;
-
- reg = thb_gpio_read_reg(chip, pin);
- *config = ((reg & THB_GPIO_SLEW_RATE_MASK) > 0) ? 1 : 0;
-
- return 0;
-}
-
-static int thunderbay_pinconf_get(struct pinctrl_dev *pctldev, unsigned int pin,
- unsigned long *config)
-{
- struct thunderbay_pinctrl *tpc = pinctrl_dev_get_drvdata(pctldev);
- enum pin_config_param param = pinconf_to_config_param(*config);
- u32 arg;
- int ret;
-
- switch (param) {
- case PIN_CONFIG_BIAS_HIGH_IMPEDANCE:
- ret = thunderbay_pinconf_get_tristate(tpc, pin, &arg);
- break;
-
- case PIN_CONFIG_BIAS_PULL_DOWN:
- ret = thunderbay_pinconf_get_pulldown(tpc, pin, &arg);
- break;
-
- case PIN_CONFIG_BIAS_PULL_UP:
- ret = thunderbay_pinconf_get_pullup(tpc, pin, &arg);
- break;
-
- case PIN_CONFIG_DRIVE_OPEN_DRAIN:
- ret = thunderbay_pinconf_get_opendrain(tpc, pin, &arg);
- break;
-
- case PIN_CONFIG_DRIVE_PUSH_PULL:
- ret = thunderbay_pinconf_get_pushpull(tpc, pin, &arg);
- break;
-
- case PIN_CONFIG_DRIVE_STRENGTH:
- ret = thunderbay_pinconf_get_drivestrength(tpc, pin, &arg);
- break;
-
- case PIN_CONFIG_INPUT_SCHMITT_ENABLE:
- ret = thunderbay_pinconf_get_schmitt(tpc, pin, &arg);
- break;
-
- case PIN_CONFIG_SLEW_RATE:
- ret = thunderbay_pinconf_get_slew_rate(tpc, pin, &arg);
- break;
-
- default:
- return -ENOTSUPP;
- }
-
- *config = pinconf_to_config_packed(param, arg);
-
- return ret;
-}
-
-static int thunderbay_pinconf_set(struct pinctrl_dev *pctldev, unsigned int pin,
- unsigned long *configs, unsigned int num_configs)
-{
- struct thunderbay_pinctrl *tpc = pinctrl_dev_get_drvdata(pctldev);
- enum pin_config_param param;
- unsigned int pinconf;
- int ret = 0;
- u32 arg;
-
- for (pinconf = 0; pinconf < num_configs; pinconf++) {
- param = pinconf_to_config_param(configs[pinconf]);
- arg = pinconf_to_config_argument(configs[pinconf]);
-
- switch (param) {
- case PIN_CONFIG_BIAS_HIGH_IMPEDANCE:
- ret = thunderbay_pinconf_set_tristate(tpc, pin, arg);
- break;
-
- case PIN_CONFIG_BIAS_PULL_DOWN:
- ret = thunderbay_pinconf_set_pulldown(tpc, pin, arg);
- break;
-
- case PIN_CONFIG_BIAS_PULL_UP:
- ret = thunderbay_pinconf_set_pullup(tpc, pin, arg);
- break;
-
- case PIN_CONFIG_DRIVE_OPEN_DRAIN:
- ret = thunderbay_pinconf_set_opendrain(tpc, pin, arg);
- break;
-
- case PIN_CONFIG_DRIVE_PUSH_PULL:
- ret = thunderbay_pinconf_set_pushpull(tpc, pin, arg);
- break;
-
- case PIN_CONFIG_DRIVE_STRENGTH:
- ret = thunderbay_pinconf_set_drivestrength(tpc, pin, arg);
- break;
-
- case PIN_CONFIG_INPUT_SCHMITT_ENABLE:
- ret = thunderbay_pinconf_set_schmitt(tpc, pin, arg);
- break;
-
- case PIN_CONFIG_SLEW_RATE:
- ret = thunderbay_pinconf_set_slew_rate(tpc, pin, arg);
- break;
-
- default:
- return -ENOTSUPP;
- }
- }
- return ret;
-}
-
-static const struct pinctrl_ops thunderbay_pctlops = {
- .get_groups_count = pinctrl_generic_get_group_count,
- .get_group_name = pinctrl_generic_get_group_name,
- .get_group_pins = pinctrl_generic_get_group_pins,
- .dt_node_to_map = pinconf_generic_dt_node_to_map_all,
- .dt_free_map = pinconf_generic_dt_free_map,
-};
-
-static const struct pinmux_ops thunderbay_pmxops = {
- .get_functions_count = pinmux_generic_get_function_count,
- .get_function_name = pinmux_generic_get_function_name,
- .get_function_groups = pinmux_generic_get_function_groups,
- .set_mux = thb_pinctrl_set_mux,
- .gpio_request_enable = thunderbay_request_gpio,
- .gpio_disable_free = thunderbay_free_gpio,
-};
-
-static const struct pinconf_ops thunderbay_confops = {
- .is_generic = true,
- .pin_config_get = thunderbay_pinconf_get,
- .pin_config_set = thunderbay_pinconf_set,
-};
-
-static struct pinctrl_desc thunderbay_pinctrl_desc = {
- .name = "thunderbay-pinmux",
- .pctlops = &thunderbay_pctlops,
- .pmxops = &thunderbay_pmxops,
- .confops = &thunderbay_confops,
- .owner = THIS_MODULE,
-};
-
-static const struct of_device_id thunderbay_pinctrl_match[] = {
- {
- .compatible = "intel,thunderbay-pinctrl",
- .data = &thunderbay_data
- },
- {}
-};
-
-static int thunderbay_pinctrl_probe(struct platform_device *pdev)
-{
- const struct of_device_id *of_id;
- struct device *dev = &pdev->dev;
- struct thunderbay_pinctrl *tpc;
- int ret;
-
- of_id = of_match_node(thunderbay_pinctrl_match, pdev->dev.of_node);
- if (!of_id)
- return -ENODEV;
-
- tpc = devm_kzalloc(dev, sizeof(*tpc), GFP_KERNEL);
- if (!tpc)
- return -ENOMEM;
-
- tpc->dev = dev;
- tpc->soc = of_id->data;
-
- tpc->base0 = devm_platform_ioremap_resource(pdev, 0);
- if (IS_ERR(tpc->base0))
- return PTR_ERR(tpc->base0);
-
- thunderbay_pinctrl_desc.pins = tpc->soc->pins;
- thunderbay_pinctrl_desc.npins = tpc->soc->npins;
-
- /* Register pinctrl */
- tpc->pctrl = devm_pinctrl_register(dev, &thunderbay_pinctrl_desc, tpc);
- if (IS_ERR(tpc->pctrl))
- return PTR_ERR(tpc->pctrl);
-
- /* Setup pinmux groups */
- ret = thunderbay_build_groups(tpc);
- if (ret)
- return ret;
-
- /* Setup pinmux functions */
- ret = thunderbay_build_functions(tpc);
- if (ret)
- return ret;
-
- /* Setup GPIO */
- ret = thunderbay_gpiochip_probe(tpc);
- if (ret < 0)
- return ret;
-
- platform_set_drvdata(pdev, tpc);
-
- return 0;
-}
-
-static struct platform_driver thunderbay_pinctrl_driver = {
- .driver = {
- .name = "thunderbay-pinctrl",
- .of_match_table = thunderbay_pinctrl_match,
- },
- .probe = thunderbay_pinctrl_probe,
-};
-
-builtin_platform_driver(thunderbay_pinctrl_driver);
-
-MODULE_AUTHOR("Lakshmi Sowjanya D <lakshmi.sowjanya.d@intel.com>");
-MODULE_AUTHOR("Kiran Kumar S <kiran.kumar1.s@intel.com>");
-MODULE_DESCRIPTION("Intel Thunder Bay Pinctrl/GPIO Driver");
-MODULE_LICENSE("GPL v2");
projects / platform / kernel / linux-starfive.git / commitdiff