--- /dev/null
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (C) 2020 Intel Corporation */
+
+#include <linux/bitfield.h>
+#include <linux/bitops.h>
+#include <linux/gpio/driver.h>
+#include <linux/interrupt.h>
+#include <linux/io.h>
+#include <linux/module.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 "core.h"
+#include "pinmux.h"
+
+/* GPIO data registers' offsets */
+#define KEEMBAY_GPIO_DATA_OUT 0x000
+#define KEEMBAY_GPIO_DATA_IN 0x020
+#define KEEMBAY_GPIO_DATA_IN_RAW 0x040
+#define KEEMBAY_GPIO_DATA_HIGH 0x060
+#define KEEMBAY_GPIO_DATA_LOW 0x080
+
+/* GPIO Interrupt and mode registers' offsets */
+#define KEEMBAY_GPIO_INT_CFG 0x000
+#define KEEMBAY_GPIO_MODE 0x070
+
+/* GPIO mode register bit fields */
+#define KEEMBAY_GPIO_MODE_PULLUP_MASK GENMASK(13, 12)
+#define KEEMBAY_GPIO_MODE_DRIVE_MASK GENMASK(8, 7)
+#define KEEMBAY_GPIO_MODE_INV_MASK GENMASK(5, 4)
+#define KEEMBAY_GPIO_MODE_SELECT_MASK GENMASK(2, 0)
+#define KEEMBAY_GPIO_MODE_DIR_OVR BIT(15)
+#define KEEMBAY_GPIO_MODE_REN BIT(11)
+#define KEEMBAY_GPIO_MODE_SCHMITT_EN BIT(10)
+#define KEEMBAY_GPIO_MODE_SLEW_RATE BIT(9)
+#define KEEMBAY_GPIO_IRQ_ENABLE BIT(7)
+#define KEEMBAY_GPIO_MODE_DIR BIT(3)
+#define KEEMBAY_GPIO_MODE_DEFAULT 0x7
+#define KEEMBAY_GPIO_MODE_INV_VAL 0x3
+
+#define KEEMBAY_GPIO_DISABLE 0
+#define KEEMBAY_GPIO_PULL_UP 1
+#define KEEMBAY_GPIO_PULL_DOWN 2
+#define KEEMBAY_GPIO_BUS_HOLD 3
+#define KEEMBAY_GPIO_NUM_IRQ 8
+#define KEEMBAY_GPIO_MAX_PER_IRQ 4
+#define KEEMBAY_GPIO_MAX_PER_REG 32
+#define KEEMBAY_GPIO_MIN_STRENGTH 2
+#define KEEMBAY_GPIO_MAX_STRENGTH 12
+#define KEEMBAY_GPIO_SENSE_LOW (IRQ_TYPE_LEVEL_LOW | IRQ_TYPE_EDGE_FALLING)
+
+/* GPIO reg address calculation */
+#define KEEMBAY_GPIO_REG_OFFSET(pin) ((pin) * 4)
+
+/**
+ * struct keembay_mux_desc - Mux properties of each GPIO pin
+ * @mode: Pin mode when operating in this function
+ * @name: Pin function name
+ */
+struct keembay_mux_desc {
+ u8 mode;
+ const char *name;
+};
+
+#define KEEMBAY_PIN_DESC(pin_number, pin_name, ...) { \
+ .number = pin_number, \
+ .name = pin_name, \
+ .drv_data = &(struct keembay_mux_desc[]) { \
+ __VA_ARGS__, { } }, \
+} \
+
+#define KEEMBAY_MUX(pin_mode, pin_function) { \
+ .mode = pin_mode, \
+ .name = pin_function, \
+} \
+
+/**
+ * struct keembay_gpio_irq - Config of each GPIO Interrupt sources
+ * @source: Interrupt source number (0 - 7)
+ * @line: Actual Interrupt line number
+ * @pins: Array of GPIO pins using this Interrupt line
+ * @trigger: Interrupt trigger type for this line
+ * @num_share: Number of pins currently using this Interrupt line
+ */
+struct keembay_gpio_irq {
+ unsigned int source;
+ unsigned int line;
+ unsigned int pins[KEEMBAY_GPIO_MAX_PER_IRQ];
+ unsigned int trigger;
+ unsigned int num_share;
+};
+
+/**
+ * struct keembay_pinctrl - Intel Keembay pinctrl structure
+ * @pctrl: Pointer to the pin controller device
+ * @base0: First register base address
+ * @base1: Second 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
+ * @lock: Spinlock to protect various gpio config register access
+ * @ngroups: Number of pin groups available
+ * @nfuncs: Number of pin functions available
+ * @npins: Number of GPIO pins available
+ * @irq: Store Interrupt source
+ * @max_gpios_level_type: Store max level trigger type
+ * @max_gpios_edge_type: Store max edge trigger type
+ */
+struct keembay_pinctrl {
+ struct pinctrl_dev *pctrl;
+ void __iomem *base0;
+ void __iomem *base1;
+ struct device *dev;
+ struct gpio_chip chip;
+ const struct keembay_pin_soc *soc;
+ raw_spinlock_t lock;
+ unsigned int ngroups;
+ unsigned int nfuncs;
+ unsigned int npins;
+ struct keembay_gpio_irq irq[KEEMBAY_GPIO_NUM_IRQ];
+ int max_gpios_level_type;
+ int max_gpios_edge_type;
+};
+
+/**
+ * struct keembay_pin_soc - Pin control config data based on SoC
+ * @pins: Pin description structure
+ */
+struct keembay_pin_soc {
+ const struct pinctrl_pin_desc *pins;
+};
+
+static const struct pinctrl_pin_desc keembay_pins[] = {
+ KEEMBAY_PIN_DESC(0, "GPIO0",
+ KEEMBAY_MUX(0x0, "I2S0_M0"),
+ KEEMBAY_MUX(0x1, "SD0_M1"),
+ KEEMBAY_MUX(0x2, "SLVDS0_M2"),
+ KEEMBAY_MUX(0x3, "I2C0_M3"),
+ KEEMBAY_MUX(0x4, "CAM_M4"),
+ KEEMBAY_MUX(0x5, "ETH_M5"),
+ KEEMBAY_MUX(0x6, "LCD_M6"),
+ KEEMBAY_MUX(0x7, "GPIO_M7")),
+ KEEMBAY_PIN_DESC(1, "GPIO1",
+ KEEMBAY_MUX(0x0, "I2S0_M0"),
+ KEEMBAY_MUX(0x1, "SD0_M1"),
+ KEEMBAY_MUX(0x2, "SLVDS0_M2"),
+ KEEMBAY_MUX(0x3, "I2C0_M3"),
+ KEEMBAY_MUX(0x4, "CAM_M4"),
+ KEEMBAY_MUX(0x5, "ETH_M5"),
+ KEEMBAY_MUX(0x6, "LCD_M6"),
+ KEEMBAY_MUX(0x7, "GPIO_M7")),
+ KEEMBAY_PIN_DESC(2, "GPIO2",
+ KEEMBAY_MUX(0x0, "I2S0_M0"),
+ KEEMBAY_MUX(0x1, "I2S0_M1"),
+ KEEMBAY_MUX(0x2, "SLVDS0_M2"),
+ KEEMBAY_MUX(0x3, "I2C1_M3"),
+ KEEMBAY_MUX(0x4, "CAM_M4"),
+ KEEMBAY_MUX(0x5, "ETH_M5"),
+ KEEMBAY_MUX(0x6, "LCD_M6"),
+ KEEMBAY_MUX(0x7, "GPIO_M7")),
+ KEEMBAY_PIN_DESC(3, "GPIO3",
+ KEEMBAY_MUX(0x0, "I2S0_M0"),
+ KEEMBAY_MUX(0x1, "I2S0_M1"),
+ KEEMBAY_MUX(0x2, "SLVDS0_M2"),
+ KEEMBAY_MUX(0x3, "I2C1_M3"),
+ KEEMBAY_MUX(0x4, "CAM_M4"),
+ KEEMBAY_MUX(0x5, "ETH_M5"),
+ KEEMBAY_MUX(0x6, "LCD_M6"),
+ KEEMBAY_MUX(0x7, "GPIO_M7")),
+ KEEMBAY_PIN_DESC(4, "GPIO4",
+ KEEMBAY_MUX(0x0, "I2S0_M0"),
+ KEEMBAY_MUX(0x1, "I2S0_M1"),
+ KEEMBAY_MUX(0x2, "SLVDS0_M2"),
+ KEEMBAY_MUX(0x3, "I2C2_M3"),
+ KEEMBAY_MUX(0x4, "CAM_M4"),
+ KEEMBAY_MUX(0x5, "ETH_M5"),
+ KEEMBAY_MUX(0x6, "LCD_M6"),
+ KEEMBAY_MUX(0x7, "GPIO_M7")),
+ KEEMBAY_PIN_DESC(5, "GPIO5",
+ KEEMBAY_MUX(0x0, "I2S0_M0"),
+ KEEMBAY_MUX(0x1, "I2S0_M1"),
+ KEEMBAY_MUX(0x2, "SLVDS0_M2"),
+ KEEMBAY_MUX(0x3, "I2C2_M3"),
+ KEEMBAY_MUX(0x4, "CAM_M4"),
+ KEEMBAY_MUX(0x5, "ETH_M5"),
+ KEEMBAY_MUX(0x6, "LCD_M6"),
+ KEEMBAY_MUX(0x7, "GPIO_M7")),
+ KEEMBAY_PIN_DESC(6, "GPIO6",
+ KEEMBAY_MUX(0x0, "I2S1_M0"),
+ KEEMBAY_MUX(0x1, "SD0_M1"),
+ KEEMBAY_MUX(0x2, "SLVDS0_M2"),
+ KEEMBAY_MUX(0x3, "I2C3_M3"),
+ KEEMBAY_MUX(0x4, "CAM_M4"),
+ KEEMBAY_MUX(0x5, "ETH_M5"),
+ KEEMBAY_MUX(0x6, "LCD_M6"),
+ KEEMBAY_MUX(0x7, "GPIO_M7")),
+ KEEMBAY_PIN_DESC(7, "GPIO7",
+ KEEMBAY_MUX(0x0, "I2S1_M0"),
+ KEEMBAY_MUX(0x1, "SD0_M1"),
+ KEEMBAY_MUX(0x2, "SLVDS0_M2"),
+ KEEMBAY_MUX(0x3, "I2C3_M3"),
+ KEEMBAY_MUX(0x4, "CAM_M4"),
+ KEEMBAY_MUX(0x5, "ETH_M5"),
+ KEEMBAY_MUX(0x6, "LCD_M6"),
+ KEEMBAY_MUX(0x7, "GPIO_M7")),
+ KEEMBAY_PIN_DESC(8, "GPIO8",
+ KEEMBAY_MUX(0x0, "I2S1_M0"),
+ KEEMBAY_MUX(0x1, "I2S1_M1"),
+ KEEMBAY_MUX(0x2, "SLVDS0_M2"),
+ KEEMBAY_MUX(0x3, "UART0_M3"),
+ KEEMBAY_MUX(0x4, "CAM_M4"),
+ KEEMBAY_MUX(0x5, "ETH_M5"),
+ KEEMBAY_MUX(0x6, "LCD_M6"),
+ KEEMBAY_MUX(0x7, "GPIO_M7")),
+ KEEMBAY_PIN_DESC(9, "GPIO9",
+ KEEMBAY_MUX(0x0, "I2S1_M0"),
+ KEEMBAY_MUX(0x1, "I2S1_M1"),
+ KEEMBAY_MUX(0x2, "PWM_M2"),
+ KEEMBAY_MUX(0x3, "UART0_M3"),
+ KEEMBAY_MUX(0x4, "CAM_M4"),
+ KEEMBAY_MUX(0x5, "ETH_M5"),
+ KEEMBAY_MUX(0x6, "LCD_M6"),
+ KEEMBAY_MUX(0x7, "GPIO_M7")),
+ KEEMBAY_PIN_DESC(10, "GPIO10",
+ KEEMBAY_MUX(0x0, "I2S2_M0"),
+ KEEMBAY_MUX(0x1, "SD0_M1"),
+ KEEMBAY_MUX(0x2, "PWM_M2"),
+ KEEMBAY_MUX(0x3, "UART0_M3"),
+ KEEMBAY_MUX(0x4, "CAM_M4"),
+ KEEMBAY_MUX(0x5, "ETH_M5"),
+ KEEMBAY_MUX(0x6, "LCD_M6"),
+ KEEMBAY_MUX(0x7, "GPIO_M7")),
+ KEEMBAY_PIN_DESC(11, "GPIO11",
+ KEEMBAY_MUX(0x0, "I2S2_M0"),
+ KEEMBAY_MUX(0x1, "SD0_M1"),
+ KEEMBAY_MUX(0x2, "PWM_M2"),
+ KEEMBAY_MUX(0x3, "UART0_M3"),
+ KEEMBAY_MUX(0x4, "CAM_M4"),
+ KEEMBAY_MUX(0x5, "ETH_M5"),
+ KEEMBAY_MUX(0x6, "LCD_M6"),
+ KEEMBAY_MUX(0x7, "GPIO_M7")),
+ KEEMBAY_PIN_DESC(12, "GPIO12",
+ KEEMBAY_MUX(0x0, "I2S2_M0"),
+ KEEMBAY_MUX(0x1, "I2S2_M1"),
+ KEEMBAY_MUX(0x2, "PWM_M2"),
+ KEEMBAY_MUX(0x3, "SPI0_M3"),
+ KEEMBAY_MUX(0x4, "CAM_M4"),
+ KEEMBAY_MUX(0x5, "ETH_M5"),
+ KEEMBAY_MUX(0x6, "LCD_M6"),
+ KEEMBAY_MUX(0x7, "GPIO_M7")),
+ KEEMBAY_PIN_DESC(13, "GPIO13",
+ KEEMBAY_MUX(0x0, "I2S2_M0"),
+ KEEMBAY_MUX(0x1, "I2S2_M1"),
+ KEEMBAY_MUX(0x2, "PWM_M2"),
+ KEEMBAY_MUX(0x3, "SPI0_M3"),
+ KEEMBAY_MUX(0x4, "CAM_M4"),
+ KEEMBAY_MUX(0x5, "ETH_M5"),
+ KEEMBAY_MUX(0x6, "LCD_M6"),
+ KEEMBAY_MUX(0x7, "GPIO_M7")),
+ KEEMBAY_PIN_DESC(14, "GPIO14",
+ KEEMBAY_MUX(0x0, "UART0_M0"),
+ KEEMBAY_MUX(0x1, "I2S3_M1"),
+ KEEMBAY_MUX(0x2, "PWM_M2"),
+ KEEMBAY_MUX(0x3, "SD1_M3"),
+ KEEMBAY_MUX(0x4, "CAM_M4"),
+ KEEMBAY_MUX(0x5, "ETH_M5"),
+ KEEMBAY_MUX(0x6, "LCD_M6"),
+ KEEMBAY_MUX(0x7, "GPIO_M7")),
+ KEEMBAY_PIN_DESC(15, "GPIO15",
+ KEEMBAY_MUX(0x0, "UART0_M0"),
+ KEEMBAY_MUX(0x1, "I2S3_M1"),
+ KEEMBAY_MUX(0x2, "UART0_M2"),
+ KEEMBAY_MUX(0x3, "SD1_M3"),
+ KEEMBAY_MUX(0x4, "CAM_M4"),
+ KEEMBAY_MUX(0x5, "SPI1_M5"),
+ KEEMBAY_MUX(0x6, "LCD_M6"),
+ KEEMBAY_MUX(0x7, "GPIO_M7")),
+ KEEMBAY_PIN_DESC(16, "GPIO16",
+ KEEMBAY_MUX(0x0, "UART0_M0"),
+ KEEMBAY_MUX(0x1, "I2S3_M1"),
+ KEEMBAY_MUX(0x2, "UART0_M2"),
+ KEEMBAY_MUX(0x3, "SD1_M3"),
+ KEEMBAY_MUX(0x4, "CAM_M4"),
+ KEEMBAY_MUX(0x5, "SPI1_M5"),
+ KEEMBAY_MUX(0x6, "LCD_M6"),
+ KEEMBAY_MUX(0x7, "GPIO_M7")),
+ KEEMBAY_PIN_DESC(17, "GPIO17",
+ KEEMBAY_MUX(0x0, "UART0_M0"),
+ KEEMBAY_MUX(0x1, "I2S3_M1"),
+ KEEMBAY_MUX(0x2, "I2S3_M2"),
+ KEEMBAY_MUX(0x3, "SD1_M3"),
+ KEEMBAY_MUX(0x4, "CAM_M4"),
+ KEEMBAY_MUX(0x5, "SPI1_M5"),
+ KEEMBAY_MUX(0x6, "LCD_M6"),
+ KEEMBAY_MUX(0x7, "GPIO_M7")),
+ KEEMBAY_PIN_DESC(18, "GPIO18",
+ KEEMBAY_MUX(0x0, "UART1_M0"),
+ KEEMBAY_MUX(0x1, "SPI0_M1"),
+ KEEMBAY_MUX(0x2, "I2S3_M2"),
+ KEEMBAY_MUX(0x3, "SD1_M3"),
+ KEEMBAY_MUX(0x4, "CAM_M4"),
+ KEEMBAY_MUX(0x5, "SPI1_M5"),
+ KEEMBAY_MUX(0x6, "LCD_M6"),
+ KEEMBAY_MUX(0x7, "GPIO_M7")),
+ KEEMBAY_PIN_DESC(19, "GPIO19",
+ KEEMBAY_MUX(0x0, "UART1_M0"),
+ KEEMBAY_MUX(0x1, "LCD_M1"),
+ KEEMBAY_MUX(0x2, "DEBUG_M2"),
+ KEEMBAY_MUX(0x3, "SD1_M3"),
+ KEEMBAY_MUX(0x4, "CAM_M4"),
+ KEEMBAY_MUX(0x5, "SPI1_M5"),
+ KEEMBAY_MUX(0x6, "LCD_M6"),
+ KEEMBAY_MUX(0x7, "GPIO_M7")),
+ KEEMBAY_PIN_DESC(20, "GPIO20",
+ KEEMBAY_MUX(0x0, "UART1_M0"),
+ KEEMBAY_MUX(0x1, "LCD_M1"),
+ KEEMBAY_MUX(0x2, "DEBUG_M2"),
+ KEEMBAY_MUX(0x3, "CPR_M3"),
+ KEEMBAY_MUX(0x4, "CAM_M4"),
+ KEEMBAY_MUX(0x5, "SPI1_M5"),
+ KEEMBAY_MUX(0x6, "SLVDS0_M6"),
+ KEEMBAY_MUX(0x7, "GPIO_M7")),
+ KEEMBAY_PIN_DESC(21, "GPIO21",
+ KEEMBAY_MUX(0x0, "UART1_M0"),
+ KEEMBAY_MUX(0x1, "LCD_M1"),
+ KEEMBAY_MUX(0x2, "DEBUG_M2"),
+ KEEMBAY_MUX(0x3, "CPR_M3"),
+ KEEMBAY_MUX(0x4, "CAM_M4"),
+ KEEMBAY_MUX(0x5, "I3C0_M5"),
+ KEEMBAY_MUX(0x6, "SLVDS0_M6"),
+ KEEMBAY_MUX(0x7, "GPIO_M7")),
+ KEEMBAY_PIN_DESC(22, "GPIO22",
+ KEEMBAY_MUX(0x0, "I2C0_M0"),
+ KEEMBAY_MUX(0x1, "UART2_M1"),
+ KEEMBAY_MUX(0x2, "DEBUG_M2"),
+ KEEMBAY_MUX(0x3, "CPR_M3"),
+ KEEMBAY_MUX(0x4, "CAM_M4"),
+ KEEMBAY_MUX(0x5, "I3C0_M5"),
+ KEEMBAY_MUX(0x6, "SLVDS0_M6"),
+ KEEMBAY_MUX(0x7, "GPIO_M7")),
+ KEEMBAY_PIN_DESC(23, "GPIO23",
+ KEEMBAY_MUX(0x0, "I2C0_M0"),
+ KEEMBAY_MUX(0x1, "UART2_M1"),
+ KEEMBAY_MUX(0x2, "DEBUG_M2"),
+ KEEMBAY_MUX(0x3, "CPR_M3"),
+ KEEMBAY_MUX(0x4, "CAM_M4"),
+ KEEMBAY_MUX(0x5, "I3C1_M5"),
+ KEEMBAY_MUX(0x6, "SLVDS0_M6"),
+ KEEMBAY_MUX(0x7, "GPIO_M7")),
+ KEEMBAY_PIN_DESC(24, "GPIO24",
+ KEEMBAY_MUX(0x0, "I2C1_M0"),
+ KEEMBAY_MUX(0x1, "UART2_M1"),
+ KEEMBAY_MUX(0x2, "DEBUG_M2"),
+ KEEMBAY_MUX(0x3, "CPR_M3"),
+ KEEMBAY_MUX(0x4, "CAM_M4"),
+ KEEMBAY_MUX(0x5, "I3C1_M5"),
+ KEEMBAY_MUX(0x6, "SLVDS0_M6"),
+ KEEMBAY_MUX(0x7, "GPIO_M7")),
+ KEEMBAY_PIN_DESC(25, "GPIO25",
+ KEEMBAY_MUX(0x0, "I2C1_M0"),
+ KEEMBAY_MUX(0x1, "UART2_M1"),
+ KEEMBAY_MUX(0x2, "SPI0_M2"),
+ KEEMBAY_MUX(0x3, "CPR_M3"),
+ KEEMBAY_MUX(0x4, "CAM_M4"),
+ KEEMBAY_MUX(0x5, "I3C2_M5"),
+ KEEMBAY_MUX(0x6, "SLVDS0_M6"),
+ KEEMBAY_MUX(0x7, "GPIO_M7")),
+ KEEMBAY_PIN_DESC(26, "GPIO26",
+ KEEMBAY_MUX(0x0, "SPI0_M0"),
+ KEEMBAY_MUX(0x1, "I2C2_M1"),
+ KEEMBAY_MUX(0x2, "UART0_M2"),
+ KEEMBAY_MUX(0x3, "DSU_M3"),
+ KEEMBAY_MUX(0x4, "CAM_M4"),
+ KEEMBAY_MUX(0x5, "I3C2_M5"),
+ KEEMBAY_MUX(0x6, "SLVDS0_M6"),
+ KEEMBAY_MUX(0x7, "GPIO_M7")),
+ KEEMBAY_PIN_DESC(27, "GPIO27",
+ KEEMBAY_MUX(0x0, "SPI0_M0"),
+ KEEMBAY_MUX(0x1, "I2C2_M1"),
+ KEEMBAY_MUX(0x2, "UART0_M2"),
+ KEEMBAY_MUX(0x3, "DSU_M3"),
+ KEEMBAY_MUX(0x4, "CAM_M4"),
+ KEEMBAY_MUX(0x5, "I3C0_M5"),
+ KEEMBAY_MUX(0x6, "SLVDS0_M6"),
+ KEEMBAY_MUX(0x7, "GPIO_M7")),
+ KEEMBAY_PIN_DESC(28, "GPIO28",
+ KEEMBAY_MUX(0x0, "SPI0_M0"),
+ KEEMBAY_MUX(0x1, "I2C3_M1"),
+ KEEMBAY_MUX(0x2, "UART0_M2"),
+ KEEMBAY_MUX(0x3, "PWM_M3"),
+ KEEMBAY_MUX(0x4, "CAM_M4"),
+ KEEMBAY_MUX(0x5, "I3C1_M5"),
+ KEEMBAY_MUX(0x6, "SLVDS0_M6"),
+ KEEMBAY_MUX(0x7, "GPIO_M7")),
+ KEEMBAY_PIN_DESC(29, "GPIO29",
+ KEEMBAY_MUX(0x0, "SPI0_M0"),
+ KEEMBAY_MUX(0x1, "I2C3_M1"),
+ KEEMBAY_MUX(0x2, "UART0_M2"),
+ KEEMBAY_MUX(0x3, "PWM_M3"),
+ KEEMBAY_MUX(0x4, "CAM_M4"),
+ KEEMBAY_MUX(0x5, "I3C2_M5"),
+ KEEMBAY_MUX(0x6, "SLVDS1_M6"),
+ KEEMBAY_MUX(0x7, "GPIO_M7")),
+ KEEMBAY_PIN_DESC(30, "GPIO30",
+ KEEMBAY_MUX(0x0, "SPI0_M0"),
+ KEEMBAY_MUX(0x1, "I2S0_M1"),
+ KEEMBAY_MUX(0x2, "I2C4_M2"),
+ KEEMBAY_MUX(0x3, "PWM_M3"),
+ KEEMBAY_MUX(0x4, "CAM_M4"),
+ KEEMBAY_MUX(0x5, "LCD_M5"),
+ KEEMBAY_MUX(0x6, "SLVDS1_M6"),
+ KEEMBAY_MUX(0x7, "GPIO_M7")),
+ KEEMBAY_PIN_DESC(31, "GPIO31",
+ KEEMBAY_MUX(0x0, "SPI0_M0"),
+ KEEMBAY_MUX(0x1, "I2S0_M1"),
+ KEEMBAY_MUX(0x2, "I2C4_M2"),
+ KEEMBAY_MUX(0x3, "PWM_M3"),
+ KEEMBAY_MUX(0x4, "CAM_M4"),
+ KEEMBAY_MUX(0x5, "UART1_M5"),
+ KEEMBAY_MUX(0x6, "SLVDS1_M6"),
+ KEEMBAY_MUX(0x7, "GPIO_M7")),
+ KEEMBAY_PIN_DESC(32, "GPIO32",
+ KEEMBAY_MUX(0x0, "SD0_M0"),
+ KEEMBAY_MUX(0x1, "SPI0_M1"),
+ KEEMBAY_MUX(0x2, "UART1_M2"),
+ KEEMBAY_MUX(0x3, "PWM_M3"),
+ KEEMBAY_MUX(0x4, "CAM_M4"),
+ KEEMBAY_MUX(0x5, "PCIE_M5"),
+ KEEMBAY_MUX(0x6, "SLVDS1_M6"),
+ KEEMBAY_MUX(0x7, "GPIO_M7")),
+ KEEMBAY_PIN_DESC(33, "GPIO33",
+ KEEMBAY_MUX(0x0, "SD0_M0"),
+ KEEMBAY_MUX(0x1, "SPI0_M1"),
+ KEEMBAY_MUX(0x2, "UART1_M2"),
+ KEEMBAY_MUX(0x3, "PWM_M3"),
+ KEEMBAY_MUX(0x4, "CAM_M4"),
+ KEEMBAY_MUX(0x5, "PCIE_M5"),
+ KEEMBAY_MUX(0x6, "SLVDS1_M6"),
+ KEEMBAY_MUX(0x7, "GPIO_M7")),
+ KEEMBAY_PIN_DESC(34, "GPIO34",
+ KEEMBAY_MUX(0x0, "SD0_M0"),
+ KEEMBAY_MUX(0x1, "SPI0_M1"),
+ KEEMBAY_MUX(0x2, "I2C0_M2"),
+ KEEMBAY_MUX(0x3, "UART1_M3"),
+ KEEMBAY_MUX(0x4, "CAM_M4"),
+ KEEMBAY_MUX(0x5, "I2S0_M5"),
+ KEEMBAY_MUX(0x6, "SLVDS1_M6"),
+ KEEMBAY_MUX(0x7, "GPIO_M7")),
+ KEEMBAY_PIN_DESC(35, "GPIO35",
+ KEEMBAY_MUX(0x0, "SD0_M0"),
+ KEEMBAY_MUX(0x1, "PCIE_M1"),
+ KEEMBAY_MUX(0x2, "I2C0_M2"),
+ KEEMBAY_MUX(0x3, "UART1_M3"),
+ KEEMBAY_MUX(0x4, "CAM_M4"),
+ KEEMBAY_MUX(0x5, "I2S0_M5"),
+ KEEMBAY_MUX(0x6, "SLVDS1_M6"),
+ KEEMBAY_MUX(0x7, "GPIO_M7")),
+ KEEMBAY_PIN_DESC(36, "GPIO36",
+ KEEMBAY_MUX(0x0, "SD0_M0"),
+ KEEMBAY_MUX(0x1, "SPI3_M1"),
+ KEEMBAY_MUX(0x2, "I2C1_M2"),
+ KEEMBAY_MUX(0x3, "DEBUG_M3"),
+ KEEMBAY_MUX(0x4, "CAM_M4"),
+ KEEMBAY_MUX(0x5, "I2S0_M5"),
+ KEEMBAY_MUX(0x6, "SLVDS1_M6"),
+ KEEMBAY_MUX(0x7, "GPIO_M7")),
+ KEEMBAY_PIN_DESC(37, "GPIO37",
+ KEEMBAY_MUX(0x0, "SD0_M0"),
+ KEEMBAY_MUX(0x1, "SPI3_M1"),
+ KEEMBAY_MUX(0x2, "I2C1_M2"),
+ KEEMBAY_MUX(0x3, "DEBUG_M3"),
+ KEEMBAY_MUX(0x4, "CAM_M4"),
+ KEEMBAY_MUX(0x5, "I2S0_M5"),
+ KEEMBAY_MUX(0x6, "SLVDS1_M6"),
+ KEEMBAY_MUX(0x7, "GPIO_M7")),
+ KEEMBAY_PIN_DESC(38, "GPIO38",
+ KEEMBAY_MUX(0x0, "I3C1_M0"),
+ KEEMBAY_MUX(0x1, "SPI3_M1"),
+ KEEMBAY_MUX(0x2, "UART3_M2"),
+ KEEMBAY_MUX(0x3, "DEBUG_M3"),
+ KEEMBAY_MUX(0x4, "CAM_M4"),
+ KEEMBAY_MUX(0x5, "LCD_M5"),
+ KEEMBAY_MUX(0x6, "I2C2_M6"),
+ KEEMBAY_MUX(0x7, "GPIO_M7")),
+ KEEMBAY_PIN_DESC(39, "GPIO39",
+ KEEMBAY_MUX(0x0, "I3C1_M0"),
+ KEEMBAY_MUX(0x1, "SPI3_M1"),
+ KEEMBAY_MUX(0x2, "UART3_M2"),
+ KEEMBAY_MUX(0x3, "DEBUG_M3"),
+ KEEMBAY_MUX(0x4, "CAM_M4"),
+ KEEMBAY_MUX(0x5, "LCD_M5"),
+ KEEMBAY_MUX(0x6, "I2C2_M6"),
+ KEEMBAY_MUX(0x7, "GPIO_M7")),
+ KEEMBAY_PIN_DESC(40, "GPIO40",
+ KEEMBAY_MUX(0x0, "I2S2_M0"),
+ KEEMBAY_MUX(0x1, "SPI3_M1"),
+ KEEMBAY_MUX(0x2, "UART3_M2"),
+ KEEMBAY_MUX(0x3, "DEBUG_M3"),
+ KEEMBAY_MUX(0x4, "CAM_M4"),
+ KEEMBAY_MUX(0x5, "LCD_M5"),
+ KEEMBAY_MUX(0x6, "I2C3_M6"),
+ KEEMBAY_MUX(0x7, "GPIO_M7")),
+ KEEMBAY_PIN_DESC(41, "GPIO41",
+ KEEMBAY_MUX(0x0, "ETH_M0"),
+ KEEMBAY_MUX(0x1, "SPI3_M1"),
+ KEEMBAY_MUX(0x2, "SPI3_M2"),
+ KEEMBAY_MUX(0x3, "DEBUG_M3"),
+ KEEMBAY_MUX(0x4, "CAM_M4"),
+ KEEMBAY_MUX(0x5, "LCD_M5"),
+ KEEMBAY_MUX(0x6, "I2C3_M6"),
+ KEEMBAY_MUX(0x7, "GPIO_M7")),
+ KEEMBAY_PIN_DESC(42, "GPIO42",
+ KEEMBAY_MUX(0x0, "ETH_M0"),
+ KEEMBAY_MUX(0x1, "SD1_M1"),
+ KEEMBAY_MUX(0x2, "SPI3_M2"),
+ KEEMBAY_MUX(0x3, "CPR_M3"),
+ KEEMBAY_MUX(0x4, "CAM_M4"),
+ KEEMBAY_MUX(0x5, "LCD_M5"),
+ KEEMBAY_MUX(0x6, "I2C4_M6"),
+ KEEMBAY_MUX(0x7, "GPIO_M7")),
+ KEEMBAY_PIN_DESC(43, "GPIO43",
+ KEEMBAY_MUX(0x0, "ETH_M0"),
+ KEEMBAY_MUX(0x1, "SD1_M1"),
+ KEEMBAY_MUX(0x2, "SPI3_M2"),
+ KEEMBAY_MUX(0x3, "CPR_M3"),
+ KEEMBAY_MUX(0x4, "I2S0_M4"),
+ KEEMBAY_MUX(0x5, "LCD_M5"),
+ KEEMBAY_MUX(0x6, "I2C4_M6"),
+ KEEMBAY_MUX(0x7, "GPIO_M7")),
+ KEEMBAY_PIN_DESC(44, "GPIO44",
+ KEEMBAY_MUX(0x0, "ETH_M0"),
+ KEEMBAY_MUX(0x1, "SD1_M1"),
+ KEEMBAY_MUX(0x2, "SPI0_M2"),
+ KEEMBAY_MUX(0x3, "CPR_M3"),
+ KEEMBAY_MUX(0x4, "I2S0_M4"),
+ KEEMBAY_MUX(0x5, "LCD_M5"),
+ KEEMBAY_MUX(0x6, "CAM_M6"),
+ KEEMBAY_MUX(0x7, "GPIO_M7")),
+ KEEMBAY_PIN_DESC(45, "GPIO45",
+ KEEMBAY_MUX(0x0, "ETH_M0"),
+ KEEMBAY_MUX(0x1, "SD1_M1"),
+ KEEMBAY_MUX(0x2, "SPI0_M2"),
+ KEEMBAY_MUX(0x3, "CPR_M3"),
+ KEEMBAY_MUX(0x4, "I2S0_M4"),
+ KEEMBAY_MUX(0x5, "LCD_M5"),
+ KEEMBAY_MUX(0x6, "CAM_M6"),
+ KEEMBAY_MUX(0x7, "GPIO_M7")),
+ KEEMBAY_PIN_DESC(46, "GPIO46",
+ KEEMBAY_MUX(0x0, "ETH_M0"),
+ KEEMBAY_MUX(0x1, "SD1_M1"),
+ KEEMBAY_MUX(0x2, "SPI0_M2"),
+ KEEMBAY_MUX(0x3, "TPIU_M3"),
+ KEEMBAY_MUX(0x4, "I2S0_M4"),
+ KEEMBAY_MUX(0x5, "LCD_M5"),
+ KEEMBAY_MUX(0x6, "CAM_M6"),
+ KEEMBAY_MUX(0x7, "GPIO_M7")),
+ KEEMBAY_PIN_DESC(47, "GPIO47",
+ KEEMBAY_MUX(0x0, "ETH_M0"),
+ KEEMBAY_MUX(0x1, "SD1_M1"),
+ KEEMBAY_MUX(0x2, "SPI0_M2"),
+ KEEMBAY_MUX(0x3, "TPIU_M3"),
+ KEEMBAY_MUX(0x4, "I2S0_M4"),
+ KEEMBAY_MUX(0x5, "LCD_M5"),
+ KEEMBAY_MUX(0x6, "CAM_M6"),
+ KEEMBAY_MUX(0x7, "GPIO_M7")),
+ KEEMBAY_PIN_DESC(48, "GPIO48",
+ KEEMBAY_MUX(0x0, "ETH_M0"),
+ KEEMBAY_MUX(0x1, "SPI2_M1"),
+ KEEMBAY_MUX(0x2, "UART2_M2"),
+ KEEMBAY_MUX(0x3, "TPIU_M3"),
+ KEEMBAY_MUX(0x4, "I2S0_M4"),
+ KEEMBAY_MUX(0x5, "LCD_M5"),
+ KEEMBAY_MUX(0x6, "CAM_M6"),
+ KEEMBAY_MUX(0x7, "GPIO_M7")),
+ KEEMBAY_PIN_DESC(49, "GPIO49",
+ KEEMBAY_MUX(0x0, "ETH_M0"),
+ KEEMBAY_MUX(0x1, "SPI2_M1"),
+ KEEMBAY_MUX(0x2, "UART2_M2"),
+ KEEMBAY_MUX(0x3, "TPIU_M3"),
+ KEEMBAY_MUX(0x4, "I2S1_M4"),
+ KEEMBAY_MUX(0x5, "LCD_M5"),
+ KEEMBAY_MUX(0x6, "CAM_M6"),
+ KEEMBAY_MUX(0x7, "GPIO_M7")),
+ KEEMBAY_PIN_DESC(50, "GPIO50",
+ KEEMBAY_MUX(0x0, "ETH_M0"),
+ KEEMBAY_MUX(0x1, "SPI2_M1"),
+ KEEMBAY_MUX(0x2, "UART2_M2"),
+ KEEMBAY_MUX(0x3, "TPIU_M3"),
+ KEEMBAY_MUX(0x4, "I2S1_M4"),
+ KEEMBAY_MUX(0x5, "LCD_M5"),
+ KEEMBAY_MUX(0x6, "CAM_M6"),
+ KEEMBAY_MUX(0x7, "GPIO_M7")),
+ KEEMBAY_PIN_DESC(51, "GPIO51",
+ KEEMBAY_MUX(0x0, "ETH_M0"),
+ KEEMBAY_MUX(0x1, "SPI2_M1"),
+ KEEMBAY_MUX(0x2, "UART2_M2"),
+ KEEMBAY_MUX(0x3, "TPIU_M3"),
+ KEEMBAY_MUX(0x4, "I2S1_M4"),
+ KEEMBAY_MUX(0x5, "LCD_M5"),
+ KEEMBAY_MUX(0x6, "CAM_M6"),
+ KEEMBAY_MUX(0x7, "GPIO_M7")),
+ KEEMBAY_PIN_DESC(52, "GPIO52",
+ KEEMBAY_MUX(0x0, "ETH_M0"),
+ KEEMBAY_MUX(0x1, "SPI2_M1"),
+ KEEMBAY_MUX(0x2, "SD0_M2"),
+ KEEMBAY_MUX(0x3, "TPIU_M3"),
+ KEEMBAY_MUX(0x4, "I2S1_M4"),
+ KEEMBAY_MUX(0x5, "LCD_M5"),
+ KEEMBAY_MUX(0x6, "CAM_M6"),
+ KEEMBAY_MUX(0x7, "GPIO_M7")),
+ KEEMBAY_PIN_DESC(53, "GPIO53",
+ KEEMBAY_MUX(0x0, "ETH_M0"),
+ KEEMBAY_MUX(0x1, "SPI2_M1"),
+ KEEMBAY_MUX(0x2, "SD0_M2"),
+ KEEMBAY_MUX(0x3, "TPIU_M3"),
+ KEEMBAY_MUX(0x4, "I2S2_M4"),
+ KEEMBAY_MUX(0x5, "LCD_M5"),
+ KEEMBAY_MUX(0x6, "CAM_M6"),
+ KEEMBAY_MUX(0x7, "GPIO_M7")),
+ KEEMBAY_PIN_DESC(54, "GPIO54",
+ KEEMBAY_MUX(0x0, "ETH_M0"),
+ KEEMBAY_MUX(0x1, "SPI2_M1"),
+ KEEMBAY_MUX(0x2, "SD0_M2"),
+ KEEMBAY_MUX(0x3, "TPIU_M3"),
+ KEEMBAY_MUX(0x4, "I2S2_M4"),
+ KEEMBAY_MUX(0x5, "LCD_M5"),
+ KEEMBAY_MUX(0x6, "CAM_M6"),
+ KEEMBAY_MUX(0x7, "GPIO_M7")),
+ KEEMBAY_PIN_DESC(55, "GPIO55",
+ KEEMBAY_MUX(0x0, "ETH_M0"),
+ KEEMBAY_MUX(0x1, "SPI2_M1"),
+ KEEMBAY_MUX(0x2, "SD1_M2"),
+ KEEMBAY_MUX(0x3, "TPIU_M3"),
+ KEEMBAY_MUX(0x4, "I2S2_M4"),
+ KEEMBAY_MUX(0x5, "LCD_M5"),
+ KEEMBAY_MUX(0x6, "CAM_M6"),
+ KEEMBAY_MUX(0x7, "GPIO_M7")),
+ KEEMBAY_PIN_DESC(56, "GPIO56",
+ KEEMBAY_MUX(0x0, "ETH_M0"),
+ KEEMBAY_MUX(0x1, "SPI2_M1"),
+ KEEMBAY_MUX(0x2, "SD1_M2"),
+ KEEMBAY_MUX(0x3, "TPIU_M3"),
+ KEEMBAY_MUX(0x4, "I2S2_M4"),
+ KEEMBAY_MUX(0x5, "LCD_M5"),
+ KEEMBAY_MUX(0x6, "CAM_M6"),
+ KEEMBAY_MUX(0x7, "GPIO_M7")),
+ KEEMBAY_PIN_DESC(57, "GPIO57",
+ KEEMBAY_MUX(0x0, "SPI1_M0"),
+ KEEMBAY_MUX(0x1, "I2S1_M1"),
+ KEEMBAY_MUX(0x2, "SD1_M2"),
+ KEEMBAY_MUX(0x3, "TPIU_M3"),
+ KEEMBAY_MUX(0x4, "UART0_M4"),
+ KEEMBAY_MUX(0x5, "LCD_M5"),
+ KEEMBAY_MUX(0x6, "CAM_M6"),
+ KEEMBAY_MUX(0x7, "GPIO_M7")),
+ KEEMBAY_PIN_DESC(58, "GPIO58",
+ KEEMBAY_MUX(0x0, "SPI1_M0"),
+ KEEMBAY_MUX(0x1, "ETH_M1"),
+ KEEMBAY_MUX(0x2, "SD0_M2"),
+ KEEMBAY_MUX(0x3, "TPIU_M3"),
+ KEEMBAY_MUX(0x4, "UART0_M4"),
+ KEEMBAY_MUX(0x5, "LCD_M5"),
+ KEEMBAY_MUX(0x6, "CAM_M6"),
+ KEEMBAY_MUX(0x7, "GPIO_M7")),
+ KEEMBAY_PIN_DESC(59, "GPIO59",
+ KEEMBAY_MUX(0x0, "SPI1_M0"),
+ KEEMBAY_MUX(0x1, "ETH_M1"),
+ KEEMBAY_MUX(0x2, "SD0_M2"),
+ KEEMBAY_MUX(0x3, "TPIU_M3"),
+ KEEMBAY_MUX(0x4, "UART0_M4"),
+ KEEMBAY_MUX(0x5, "LCD_M5"),
+ KEEMBAY_MUX(0x6, "CAM_M6"),
+ KEEMBAY_MUX(0x7, "GPIO_M7")),
+ KEEMBAY_PIN_DESC(60, "GPIO60",
+ KEEMBAY_MUX(0x0, "SPI1_M0"),
+ KEEMBAY_MUX(0x1, "ETH_M1"),
+ KEEMBAY_MUX(0x2, "I3C1_M2"),
+ KEEMBAY_MUX(0x3, "TPIU_M3"),
+ KEEMBAY_MUX(0x4, "UART0_M4"),
+ KEEMBAY_MUX(0x5, "LCD_M5"),
+ KEEMBAY_MUX(0x6, "CAM_M6"),
+ KEEMBAY_MUX(0x7, "GPIO_M7")),
+ KEEMBAY_PIN_DESC(61, "GPIO61",
+ KEEMBAY_MUX(0x0, "SPI1_M0"),
+ KEEMBAY_MUX(0x1, "ETH_M1"),
+ KEEMBAY_MUX(0x2, "SD0_M2"),
+ KEEMBAY_MUX(0x3, "TPIU_M3"),
+ KEEMBAY_MUX(0x4, "UART1_M4"),
+ KEEMBAY_MUX(0x5, "LCD_M5"),
+ KEEMBAY_MUX(0x6, "CAM_M6"),
+ KEEMBAY_MUX(0x7, "GPIO_M7")),
+ KEEMBAY_PIN_DESC(62, "GPIO62",
+ KEEMBAY_MUX(0x0, "SPI1_M0"),
+ KEEMBAY_MUX(0x1, "ETH_M1"),
+ KEEMBAY_MUX(0x2, "SD1_M2"),
+ KEEMBAY_MUX(0x3, "TPIU_M3"),
+ KEEMBAY_MUX(0x4, "UART1_M4"),
+ KEEMBAY_MUX(0x5, "LCD_M5"),
+ KEEMBAY_MUX(0x6, "CAM_M6"),
+ KEEMBAY_MUX(0x7, "GPIO_M7")),
+ KEEMBAY_PIN_DESC(63, "GPIO63",
+ KEEMBAY_MUX(0x0, "I2S1_M0"),
+ KEEMBAY_MUX(0x1, "SPI1_M1"),
+ KEEMBAY_MUX(0x2, "SD1_M2"),
+ KEEMBAY_MUX(0x3, "TPIU_M3"),
+ KEEMBAY_MUX(0x4, "UART1_M4"),
+ KEEMBAY_MUX(0x5, "LCD_M5"),
+ KEEMBAY_MUX(0x6, "CAM_M6"),
+ KEEMBAY_MUX(0x7, "GPIO_M7")),
+ KEEMBAY_PIN_DESC(64, "GPIO64",
+ KEEMBAY_MUX(0x0, "I2S2_M0"),
+ KEEMBAY_MUX(0x1, "SPI1_M1"),
+ KEEMBAY_MUX(0x2, "ETH_M2"),
+ KEEMBAY_MUX(0x3, "TPIU_M3"),
+ KEEMBAY_MUX(0x4, "UART1_M4"),
+ KEEMBAY_MUX(0x5, "LCD_M5"),
+ KEEMBAY_MUX(0x6, "CAM_M6"),
+ KEEMBAY_MUX(0x7, "GPIO_M7")),
+ KEEMBAY_PIN_DESC(65, "GPIO65",
+ KEEMBAY_MUX(0x0, "I3C0_M0"),
+ KEEMBAY_MUX(0x1, "SPI1_M1"),
+ KEEMBAY_MUX(0x2, "SD1_M2"),
+ KEEMBAY_MUX(0x3, "TPIU_M3"),
+ KEEMBAY_MUX(0x4, "SPI0_M4"),
+ KEEMBAY_MUX(0x5, "LCD_M5"),
+ KEEMBAY_MUX(0x6, "CAM_M6"),
+ KEEMBAY_MUX(0x7, "GPIO_M7")),
+ KEEMBAY_PIN_DESC(66, "GPIO66",
+ KEEMBAY_MUX(0x0, "I3C0_M0"),
+ KEEMBAY_MUX(0x1, "ETH_M1"),
+ KEEMBAY_MUX(0x2, "I2C0_M2"),
+ KEEMBAY_MUX(0x3, "TPIU_M3"),
+ KEEMBAY_MUX(0x4, "SPI0_M4"),
+ KEEMBAY_MUX(0x5, "LCD_M5"),
+ KEEMBAY_MUX(0x6, "CAM_M6"),
+ KEEMBAY_MUX(0x7, "GPIO_M7")),
+ KEEMBAY_PIN_DESC(67, "GPIO67",
+ KEEMBAY_MUX(0x0, "I3C1_M0"),
+ KEEMBAY_MUX(0x1, "ETH_M1"),
+ KEEMBAY_MUX(0x2, "I2C0_M2"),
+ KEEMBAY_MUX(0x3, "TPIU_M3"),
+ KEEMBAY_MUX(0x4, "SPI0_M4"),
+ KEEMBAY_MUX(0x5, "LCD_M5"),
+ KEEMBAY_MUX(0x6, "I2S3_M6"),
+ KEEMBAY_MUX(0x7, "GPIO_M7")),
+ KEEMBAY_PIN_DESC(68, "GPIO68",
+ KEEMBAY_MUX(0x0, "I3C1_M0"),
+ KEEMBAY_MUX(0x1, "ETH_M1"),
+ KEEMBAY_MUX(0x2, "I2C1_M2"),
+ KEEMBAY_MUX(0x3, "TPIU_M3"),
+ KEEMBAY_MUX(0x4, "SPI0_M4"),
+ KEEMBAY_MUX(0x5, "LCD_M5"),
+ KEEMBAY_MUX(0x6, "I2S3_M6"),
+ KEEMBAY_MUX(0x7, "GPIO_M7")),
+ KEEMBAY_PIN_DESC(69, "GPIO69",
+ KEEMBAY_MUX(0x0, "I3C2_M0"),
+ KEEMBAY_MUX(0x1, "ETH_M1"),
+ KEEMBAY_MUX(0x2, "I2C1_M2"),
+ KEEMBAY_MUX(0x3, "TPIU_M3"),
+ KEEMBAY_MUX(0x4, "SPI0_M4"),
+ KEEMBAY_MUX(0x5, "LCD_M5"),
+ KEEMBAY_MUX(0x6, "I2S3_M6"),
+ KEEMBAY_MUX(0x7, "GPIO_M7")),
+ KEEMBAY_PIN_DESC(70, "GPIO70",
+ KEEMBAY_MUX(0x0, "I3C2_M0"),
+ KEEMBAY_MUX(0x1, "ETH_M1"),
+ KEEMBAY_MUX(0x2, "SPI0_M2"),
+ KEEMBAY_MUX(0x3, "TPIU_M3"),
+ KEEMBAY_MUX(0x4, "SD0_M4"),
+ KEEMBAY_MUX(0x5, "LCD_M5"),
+ KEEMBAY_MUX(0x6, "I2S3_M6"),
+ KEEMBAY_MUX(0x7, "GPIO_M7")),
+ KEEMBAY_PIN_DESC(71, "GPIO71",
+ KEEMBAY_MUX(0x0, "I3C0_M0"),
+ KEEMBAY_MUX(0x1, "ETH_M1"),
+ KEEMBAY_MUX(0x2, "SLVDS1_M2"),
+ KEEMBAY_MUX(0x3, "TPIU_M3"),
+ KEEMBAY_MUX(0x4, "SD0_M4"),
+ KEEMBAY_MUX(0x5, "LCD_M5"),
+ KEEMBAY_MUX(0x6, "I2S3_M6"),
+ KEEMBAY_MUX(0x7, "GPIO_M7")),
+ KEEMBAY_PIN_DESC(72, "GPIO72",
+ KEEMBAY_MUX(0x0, "I3C1_M0"),
+ KEEMBAY_MUX(0x1, "ETH_M1"),
+ KEEMBAY_MUX(0x2, "SLVDS1_M2"),
+ KEEMBAY_MUX(0x3, "TPIU_M3"),
+ KEEMBAY_MUX(0x4, "SD0_M4"),
+ KEEMBAY_MUX(0x5, "LCD_M5"),
+ KEEMBAY_MUX(0x6, "UART2_M6"),
+ KEEMBAY_MUX(0x7, "GPIO_M7")),
+ KEEMBAY_PIN_DESC(73, "GPIO73",
+ KEEMBAY_MUX(0x0, "I3C2_M0"),
+ KEEMBAY_MUX(0x1, "ETH_M1"),
+ KEEMBAY_MUX(0x2, "SLVDS1_M2"),
+ KEEMBAY_MUX(0x3, "TPIU_M3"),
+ KEEMBAY_MUX(0x4, "SD0_M4"),
+ KEEMBAY_MUX(0x5, "LCD_M5"),
+ KEEMBAY_MUX(0x6, "UART2_M6"),
+ KEEMBAY_MUX(0x7, "GPIO_M7")),
+ KEEMBAY_PIN_DESC(74, "GPIO74",
+ KEEMBAY_MUX(0x0, "I3C0_M0"),
+ KEEMBAY_MUX(0x1, "ETH_M1"),
+ KEEMBAY_MUX(0x2, "SLVDS1_M2"),
+ KEEMBAY_MUX(0x3, "TPIU_M3"),
+ KEEMBAY_MUX(0x4, "SD0_M4"),
+ KEEMBAY_MUX(0x5, "LCD_M5"),
+ KEEMBAY_MUX(0x6, "UART2_M6"),
+ KEEMBAY_MUX(0x7, "GPIO_M7")),
+ KEEMBAY_PIN_DESC(75, "GPIO75",
+ KEEMBAY_MUX(0x0, "I3C0_M0"),
+ KEEMBAY_MUX(0x1, "ETH_M1"),
+ KEEMBAY_MUX(0x2, "SLVDS1_M2"),
+ KEEMBAY_MUX(0x3, "TPIU_M3"),
+ KEEMBAY_MUX(0x4, "SD0_M4"),
+ KEEMBAY_MUX(0x5, "LCD_M5"),
+ KEEMBAY_MUX(0x6, "UART2_M6"),
+ KEEMBAY_MUX(0x7, "GPIO_M7")),
+ KEEMBAY_PIN_DESC(76, "GPIO76",
+ KEEMBAY_MUX(0x0, "I2C2_M0"),
+ KEEMBAY_MUX(0x1, "I3C0_M1"),
+ KEEMBAY_MUX(0x2, "SLVDS1_M2"),
+ KEEMBAY_MUX(0x3, "TPIU_M3"),
+ KEEMBAY_MUX(0x4, "ETH_M4"),
+ KEEMBAY_MUX(0x5, "LCD_M5"),
+ KEEMBAY_MUX(0x6, "UART3_M6"),
+ KEEMBAY_MUX(0x7, "GPIO_M7")),
+ KEEMBAY_PIN_DESC(77, "GPIO77",
+ KEEMBAY_MUX(0x0, "PCIE_M0"),
+ KEEMBAY_MUX(0x1, "I3C1_M1"),
+ KEEMBAY_MUX(0x2, "SLVDS1_M2"),
+ KEEMBAY_MUX(0x3, "TPIU_M3"),
+ KEEMBAY_MUX(0x4, "I3C2_M4"),
+ KEEMBAY_MUX(0x5, "LCD_M5"),
+ KEEMBAY_MUX(0x6, "UART3_M6"),
+ KEEMBAY_MUX(0x7, "GPIO_M7")),
+ KEEMBAY_PIN_DESC(78, "GPIO78",
+ KEEMBAY_MUX(0x0, "PCIE_M0"),
+ KEEMBAY_MUX(0x1, "I3C2_M1"),
+ KEEMBAY_MUX(0x2, "SLVDS1_M2"),
+ KEEMBAY_MUX(0x3, "TPIU_M3"),
+ KEEMBAY_MUX(0x4, "I3C2_M4"),
+ KEEMBAY_MUX(0x5, "LCD_M5"),
+ KEEMBAY_MUX(0x6, "UART3_M6"),
+ KEEMBAY_MUX(0x7, "GPIO_M7")),
+ KEEMBAY_PIN_DESC(79, "GPIO79",
+ KEEMBAY_MUX(0x0, "PCIE_M0"),
+ KEEMBAY_MUX(0x1, "I2C2_M1"),
+ KEEMBAY_MUX(0x2, "SLVDS1_M2"),
+ KEEMBAY_MUX(0x3, "TPIU_M3"),
+ KEEMBAY_MUX(0x4, "I3C2_M4"),
+ KEEMBAY_MUX(0x5, "LCD_M5"),
+ KEEMBAY_MUX(0x6, "UART3_M6"),
+ KEEMBAY_MUX(0x7, "GPIO_M7")),
+};
+
+static inline u32 keembay_read_reg(void __iomem *base, unsigned int pin)
+{
+ return readl(base + KEEMBAY_GPIO_REG_OFFSET(pin));
+}
+
+static inline u32 keembay_read_gpio_reg(void __iomem *base, unsigned int pin)
+{
+ return keembay_read_reg(base, pin / KEEMBAY_GPIO_MAX_PER_REG);
+}
+
+static inline u32 keembay_read_pin(void __iomem *base, unsigned int pin)
+{
+ u32 val = keembay_read_gpio_reg(base, pin);
+
+ return !!(val & BIT(pin % KEEMBAY_GPIO_MAX_PER_REG));
+}
+
+static inline void keembay_write_reg(u32 val, void __iomem *base, unsigned int pin)
+{
+ writel(val, base + KEEMBAY_GPIO_REG_OFFSET(pin));
+}
+
+static inline void keembay_write_gpio_reg(u32 val, void __iomem *base, unsigned int pin)
+{
+ keembay_write_reg(val, base, pin / KEEMBAY_GPIO_MAX_PER_REG);
+}
+
+static void keembay_gpio_invert(struct keembay_pinctrl *kpc, unsigned int pin)
+{
+ unsigned int val = keembay_read_reg(kpc->base1 + KEEMBAY_GPIO_MODE, pin);
+
+ /*
+ * This IP doesn't support the falling edge and low level interrupt
+ * trigger. Invert API is used to mimic the falling edge and low
+ * level support
+ */
+
+ val |= FIELD_PREP(KEEMBAY_GPIO_MODE_INV_MASK, KEEMBAY_GPIO_MODE_INV_VAL);
+ keembay_write_reg(val, kpc->base1 + KEEMBAY_GPIO_MODE, pin);
+}
+
+static void keembay_gpio_restore_default(struct keembay_pinctrl *kpc, unsigned int pin)
+{
+ unsigned int val = keembay_read_reg(kpc->base1 + KEEMBAY_GPIO_MODE, pin);
+
+ val &= FIELD_PREP(KEEMBAY_GPIO_MODE_INV_MASK, 0);
+ keembay_write_reg(val, kpc->base1 + KEEMBAY_GPIO_MODE, pin);
+}
+
+static int keembay_request_gpio(struct pinctrl_dev *pctldev,
+ struct pinctrl_gpio_range *range, unsigned int pin)
+{
+ struct keembay_pinctrl *kpc = pinctrl_dev_get_drvdata(pctldev);
+ unsigned int val;
+
+ if (pin >= kpc->npins)
+ return -EINVAL;
+
+ val = keembay_read_reg(kpc->base1 + KEEMBAY_GPIO_MODE, pin);
+ val = FIELD_GET(KEEMBAY_GPIO_MODE_SELECT_MASK, val);
+
+ /* As per Pin Mux Map, Modes 0 to 6 are for peripherals */
+ if (val != KEEMBAY_GPIO_MODE_DEFAULT)
+ return -EBUSY;
+
+ return 0;
+}
+
+static int keembay_set_mux(struct pinctrl_dev *pctldev, unsigned int fun_sel,
+ unsigned int grp_sel)
+{
+ struct keembay_pinctrl *kpc = pinctrl_dev_get_drvdata(pctldev);
+ struct function_desc *func;
+ struct group_desc *grp;
+ unsigned int val;
+ u8 pin_mode;
+ int pin;
+
+ grp = pinctrl_generic_get_group(pctldev, grp_sel);
+ if (!grp)
+ return -EINVAL;
+
+ func = pinmux_generic_get_function(pctldev, fun_sel);
+ if (!func)
+ return -EINVAL;
+
+ /* Change modes for pins in the selected group */
+ pin = *grp->pins;
+ pin_mode = *(u8 *)(func->data);
+
+ val = keembay_read_reg(kpc->base1 + KEEMBAY_GPIO_MODE, pin);
+ val = u32_replace_bits(val, pin_mode, KEEMBAY_GPIO_MODE_SELECT_MASK);
+ keembay_write_reg(val, kpc->base1 + KEEMBAY_GPIO_MODE, pin);
+
+ return 0;
+}
+
+static u32 keembay_pinconf_get_pull(struct keembay_pinctrl *kpc, unsigned int pin)
+{
+ unsigned int val = keembay_read_reg(kpc->base1 + KEEMBAY_GPIO_MODE, pin);
+
+ return FIELD_GET(KEEMBAY_GPIO_MODE_PULLUP_MASK, val);
+}
+
+static int keembay_pinconf_set_pull(struct keembay_pinctrl *kpc, unsigned int pin,
+ unsigned int pull)
+{
+ unsigned int val = keembay_read_reg(kpc->base1 + KEEMBAY_GPIO_MODE, pin);
+
+ val = u32_replace_bits(val, pull, KEEMBAY_GPIO_MODE_PULLUP_MASK);
+ keembay_write_reg(val, kpc->base1 + KEEMBAY_GPIO_MODE, pin);
+
+ return 0;
+}
+
+static int keembay_pinconf_get_drive(struct keembay_pinctrl *kpc, unsigned int pin)
+{
+ unsigned int val = keembay_read_reg(kpc->base1 + KEEMBAY_GPIO_MODE, pin);
+
+ val = FIELD_GET(KEEMBAY_GPIO_MODE_DRIVE_MASK, val) * 4;
+ if (val)
+ return val;
+
+ return KEEMBAY_GPIO_MIN_STRENGTH;
+}
+
+static int keembay_pinconf_set_drive(struct keembay_pinctrl *kpc, unsigned int pin,
+ unsigned int drive)
+{
+ unsigned int val = keembay_read_reg(kpc->base1 + KEEMBAY_GPIO_MODE, pin);
+ unsigned int strength = clamp_val(drive, KEEMBAY_GPIO_MIN_STRENGTH,
+ KEEMBAY_GPIO_MAX_STRENGTH) / 4;
+
+ val = u32_replace_bits(val, strength, KEEMBAY_GPIO_MODE_DRIVE_MASK);
+ keembay_write_reg(val, kpc->base1 + KEEMBAY_GPIO_MODE, pin);
+
+ return 0;
+}
+
+static int keembay_pinconf_get_slew_rate(struct keembay_pinctrl *kpc, unsigned int pin)
+{
+ unsigned int val = keembay_read_reg(kpc->base1 + KEEMBAY_GPIO_MODE, pin);
+
+ return !!(val & KEEMBAY_GPIO_MODE_SLEW_RATE);
+}
+
+static int keembay_pinconf_set_slew_rate(struct keembay_pinctrl *kpc, unsigned int pin,
+ unsigned int slew_rate)
+{
+ unsigned int val = keembay_read_reg(kpc->base1 + KEEMBAY_GPIO_MODE, pin);
+
+ if (slew_rate)
+ val |= KEEMBAY_GPIO_MODE_SLEW_RATE;
+ else
+ val &= ~KEEMBAY_GPIO_MODE_SLEW_RATE;
+
+ keembay_write_reg(val, kpc->base1 + KEEMBAY_GPIO_MODE, pin);
+
+ return 0;
+}
+
+static int keembay_pinconf_get_schmitt(struct keembay_pinctrl *kpc, unsigned int pin)
+{
+ unsigned int val = keembay_read_reg(kpc->base1 + KEEMBAY_GPIO_MODE, pin);
+
+ return !!(val & KEEMBAY_GPIO_MODE_SCHMITT_EN);
+}
+
+static int keembay_pinconf_set_schmitt(struct keembay_pinctrl *kpc, unsigned int pin,
+ unsigned int schmitt_en)
+{
+ unsigned int val = keembay_read_reg(kpc->base1 + KEEMBAY_GPIO_MODE, pin);
+
+ if (schmitt_en)
+ val |= KEEMBAY_GPIO_MODE_SCHMITT_EN;
+ else
+ val &= ~KEEMBAY_GPIO_MODE_SCHMITT_EN;
+
+ keembay_write_reg(val, kpc->base1 + KEEMBAY_GPIO_MODE, pin);
+
+ return 0;
+}
+
+static int keembay_pinconf_get(struct pinctrl_dev *pctldev, unsigned int pin,
+ unsigned long *cfg)
+{
+ struct keembay_pinctrl *kpc = pinctrl_dev_get_drvdata(pctldev);
+ unsigned int param = pinconf_to_config_param(*cfg);
+ unsigned int val;
+
+ if (pin >= kpc->npins)
+ return -EINVAL;
+
+ switch (param) {
+ case PIN_CONFIG_BIAS_DISABLE:
+ if (keembay_pinconf_get_pull(kpc, pin) != KEEMBAY_GPIO_DISABLE)
+ return -EINVAL;
+ break;
+
+ case PIN_CONFIG_BIAS_PULL_UP:
+ if (keembay_pinconf_get_pull(kpc, pin) != KEEMBAY_GPIO_PULL_UP)
+ return -EINVAL;
+ break;
+
+ case PIN_CONFIG_BIAS_PULL_DOWN:
+ if (keembay_pinconf_get_pull(kpc, pin) != KEEMBAY_GPIO_PULL_DOWN)
+ return -EINVAL;
+ break;
+
+ case PIN_CONFIG_BIAS_BUS_HOLD:
+ if (keembay_pinconf_get_pull(kpc, pin) != KEEMBAY_GPIO_BUS_HOLD)
+ return -EINVAL;
+ break;
+
+ case PIN_CONFIG_INPUT_SCHMITT_ENABLE:
+ if (!keembay_pinconf_get_schmitt(kpc, pin))
+ return -EINVAL;
+ break;
+
+ case PIN_CONFIG_SLEW_RATE:
+ val = keembay_pinconf_get_slew_rate(kpc, pin);
+ *cfg = pinconf_to_config_packed(param, val);
+ break;
+
+ case PIN_CONFIG_DRIVE_STRENGTH:
+ val = keembay_pinconf_get_drive(kpc, pin);
+ *cfg = pinconf_to_config_packed(param, val);
+ break;
+
+ default:
+ return -ENOTSUPP;
+ }
+
+ return 0;
+}
+
+static int keembay_pinconf_set(struct pinctrl_dev *pctldev, unsigned int pin,
+ unsigned long *cfg, unsigned int num_configs)
+{
+ struct keembay_pinctrl *kpc = pinctrl_dev_get_drvdata(pctldev);
+ enum pin_config_param param;
+ unsigned int arg, i;
+ int ret = 0;
+
+ if (pin >= kpc->npins)
+ return -EINVAL;
+
+ for (i = 0; i < num_configs; i++) {
+ param = pinconf_to_config_param(cfg[i]);
+ arg = pinconf_to_config_argument(cfg[i]);
+
+ switch (param) {
+ case PIN_CONFIG_BIAS_DISABLE:
+ ret = keembay_pinconf_set_pull(kpc, pin, KEEMBAY_GPIO_DISABLE);
+ break;
+
+ case PIN_CONFIG_BIAS_PULL_UP:
+ ret = keembay_pinconf_set_pull(kpc, pin, KEEMBAY_GPIO_PULL_UP);
+ break;
+
+ case PIN_CONFIG_BIAS_PULL_DOWN:
+ ret = keembay_pinconf_set_pull(kpc, pin, KEEMBAY_GPIO_PULL_DOWN);
+ break;
+
+ case PIN_CONFIG_BIAS_BUS_HOLD:
+ ret = keembay_pinconf_set_pull(kpc, pin, KEEMBAY_GPIO_BUS_HOLD);
+ break;
+
+ case PIN_CONFIG_INPUT_SCHMITT_ENABLE:
+ ret = keembay_pinconf_set_schmitt(kpc, pin, arg);
+ break;
+
+ case PIN_CONFIG_SLEW_RATE:
+ ret = keembay_pinconf_set_slew_rate(kpc, pin, arg);
+ break;
+
+ case PIN_CONFIG_DRIVE_STRENGTH:
+ ret = keembay_pinconf_set_drive(kpc, pin, arg);
+ break;
+
+ default:
+ return -ENOTSUPP;
+ }
+ if (ret)
+ return ret;
+ }
+ return ret;
+}
+
+static const struct pinctrl_ops keembay_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 keembay_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,
+ .gpio_request_enable = keembay_request_gpio,
+ .set_mux = keembay_set_mux,
+};
+
+static const struct pinconf_ops keembay_confops = {
+ .is_generic = true,
+ .pin_config_get = keembay_pinconf_get,
+ .pin_config_set = keembay_pinconf_set,
+};
+
+static struct pinctrl_desc keembay_pinctrl_desc = {
+ .name = "keembay-pinmux",
+ .pctlops = &keembay_pctlops,
+ .pmxops = &keembay_pmxops,
+ .confops = &keembay_confops,
+ .owner = THIS_MODULE,
+};
+
+static int keembay_gpio_get(struct gpio_chip *gc, unsigned int pin)
+{
+ struct keembay_pinctrl *kpc = gpiochip_get_data(gc);
+ unsigned int val, offset;
+
+ val = keembay_read_reg(kpc->base1 + KEEMBAY_GPIO_MODE, pin);
+ offset = (val & KEEMBAY_GPIO_MODE_DIR) ? KEEMBAY_GPIO_DATA_IN : KEEMBAY_GPIO_DATA_OUT;
+
+ return keembay_read_pin(kpc->base0 + offset, pin);
+}
+
+static void keembay_gpio_set(struct gpio_chip *gc, unsigned int pin, int val)
+{
+ struct keembay_pinctrl *kpc = gpiochip_get_data(gc);
+ unsigned int reg_val;
+
+ reg_val = keembay_read_gpio_reg(kpc->base0 + KEEMBAY_GPIO_DATA_OUT, pin);
+ if (val)
+ keembay_write_gpio_reg(reg_val | BIT(pin % KEEMBAY_GPIO_MAX_PER_REG),
+ kpc->base0 + KEEMBAY_GPIO_DATA_HIGH, pin);
+ else
+ keembay_write_gpio_reg(~reg_val | BIT(pin % KEEMBAY_GPIO_MAX_PER_REG),
+ kpc->base0 + KEEMBAY_GPIO_DATA_LOW, pin);
+}
+
+static int keembay_gpio_get_direction(struct gpio_chip *gc, unsigned int pin)
+{
+ struct keembay_pinctrl *kpc = gpiochip_get_data(gc);
+ unsigned int val = keembay_read_reg(kpc->base1 + KEEMBAY_GPIO_MODE, pin);
+
+ return !!(val & KEEMBAY_GPIO_MODE_DIR);
+}
+
+static int keembay_gpio_set_direction_in(struct gpio_chip *gc, unsigned int pin)
+{
+ struct keembay_pinctrl *kpc = gpiochip_get_data(gc);
+ unsigned int val;
+
+ val = keembay_read_reg(kpc->base1 + KEEMBAY_GPIO_MODE, pin);
+ val |= KEEMBAY_GPIO_MODE_DIR;
+ keembay_write_reg(val, kpc->base1 + KEEMBAY_GPIO_MODE, pin);
+
+ return 0;
+}
+
+static int keembay_gpio_set_direction_out(struct gpio_chip *gc,
+ unsigned int pin, int value)
+{
+ struct keembay_pinctrl *kpc = gpiochip_get_data(gc);
+ unsigned int val;
+
+ val = keembay_read_reg(kpc->base1 + KEEMBAY_GPIO_MODE, pin);
+ val &= ~KEEMBAY_GPIO_MODE_DIR;
+ keembay_write_reg(val, kpc->base1 + KEEMBAY_GPIO_MODE, pin);
+ keembay_gpio_set(gc, pin, value);
+
+ return 0;
+}
+
+static void keembay_gpio_irq_handler(struct irq_desc *desc)
+{
+ struct gpio_chip *gc = irq_desc_get_handler_data(desc);
+ unsigned int kmb_irq = irq_desc_get_irq(desc);
+ unsigned long reg, clump = 0, bit = 0;
+ struct irq_chip *parent_chip;
+ struct keembay_pinctrl *kpc;
+ unsigned int src, pin, val;
+
+ /* Identify GPIO interrupt number from GIC interrupt number */
+ for (src = 0; src < KEEMBAY_GPIO_NUM_IRQ; src++) {
+ if (kmb_irq == gc->irq.parents[src])
+ break;
+ }
+
+ if (src == KEEMBAY_GPIO_NUM_IRQ)
+ return;
+
+ parent_chip = irq_desc_get_chip(desc);
+ kpc = gpiochip_get_data(gc);
+
+ chained_irq_enter(parent_chip, desc);
+ reg = keembay_read_reg(kpc->base1 + KEEMBAY_GPIO_INT_CFG, src);
+
+ /*
+ * Each Interrupt line can be shared by up to 4 GPIO pins. Enable bit
+ * and input values were checked to identify the source of the
+ * Interrupt. The checked enable bit positions are 7, 15, 23 and 31.
+ */
+ for_each_set_clump8(bit, clump, ®, BITS_PER_TYPE(typeof(reg))) {
+ pin = clump & ~KEEMBAY_GPIO_IRQ_ENABLE;
+ val = keembay_read_pin(kpc->base0 + KEEMBAY_GPIO_DATA_IN, pin);
+ kmb_irq = irq_linear_revmap(gc->irq.domain, pin);
+
+ /* Checks if the interrupt is enabled */
+ if (val && (clump & KEEMBAY_GPIO_IRQ_ENABLE))
+ generic_handle_irq(kmb_irq);
+ }
+ chained_irq_exit(parent_chip, desc);
+}
+
+static void keembay_gpio_clear_irq(struct irq_data *data, unsigned long pos,
+ u32 src, irq_hw_number_t pin)
+{
+ struct gpio_chip *gc = irq_data_get_irq_chip_data(data);
+ struct keembay_pinctrl *kpc = gpiochip_get_data(gc);
+ unsigned long trig = irqd_get_trigger_type(data);
+ struct keembay_gpio_irq *irq = &kpc->irq[src];
+ unsigned long val;
+
+ /* Check if the value of pos/KEEMBAY_GPIO_NUM_IRQ is in valid range. */
+ if ((pos / KEEMBAY_GPIO_NUM_IRQ) >= KEEMBAY_GPIO_MAX_PER_IRQ)
+ return;
+
+ /* Retains val register as it handles other interrupts as well. */
+ val = keembay_read_reg(kpc->base1 + KEEMBAY_GPIO_INT_CFG, src);
+
+ bitmap_set_value8(&val, 0, pos);
+ keembay_write_reg(val, kpc->base1 + KEEMBAY_GPIO_INT_CFG, src);
+
+ irq->num_share--;
+ irq->pins[pos / KEEMBAY_GPIO_NUM_IRQ] = 0;
+
+ if (trig & IRQ_TYPE_LEVEL_MASK)
+ keembay_gpio_restore_default(kpc, pin);
+
+ if (irq->trigger == IRQ_TYPE_LEVEL_HIGH)
+ kpc->max_gpios_level_type++;
+ else if (irq->trigger == IRQ_TYPE_EDGE_RISING)
+ kpc->max_gpios_edge_type++;
+}
+
+static int keembay_find_free_slot(struct keembay_pinctrl *kpc, unsigned int src)
+{
+ unsigned long val = keembay_read_reg(kpc->base1 + KEEMBAY_GPIO_INT_CFG, src);
+
+ return bitmap_find_free_region(&val, KEEMBAY_GPIO_MAX_PER_REG, 3) / KEEMBAY_GPIO_NUM_IRQ;
+}
+
+static int keembay_find_free_src(struct keembay_pinctrl *kpc, unsigned int trig)
+{
+ int src, type = 0;
+
+ if (trig & IRQ_TYPE_LEVEL_MASK)
+ type = IRQ_TYPE_LEVEL_HIGH;
+ else if (trig & IRQ_TYPE_EDGE_BOTH)
+ type = IRQ_TYPE_EDGE_RISING;
+
+ for (src = 0; src < KEEMBAY_GPIO_NUM_IRQ; src++) {
+ if (kpc->irq[src].trigger != type)
+ continue;
+
+ if (!keembay_read_reg(kpc->base1 + KEEMBAY_GPIO_INT_CFG, src) ||
+ kpc->irq[src].num_share < KEEMBAY_GPIO_MAX_PER_IRQ)
+ return src;
+ }
+
+ return -EBUSY;
+}
+
+static void keembay_gpio_set_irq(struct keembay_pinctrl *kpc, int src,
+ int slot, irq_hw_number_t pin)
+{
+ unsigned long val = pin | KEEMBAY_GPIO_IRQ_ENABLE;
+ struct keembay_gpio_irq *irq = &kpc->irq[src];
+ unsigned long flags, reg;
+
+ raw_spin_lock_irqsave(&kpc->lock, flags);
+ reg = keembay_read_reg(kpc->base1 + KEEMBAY_GPIO_INT_CFG, src);
+ bitmap_set_value8(®, val, slot * 8);
+ keembay_write_reg(reg, kpc->base1 + KEEMBAY_GPIO_INT_CFG, src);
+ raw_spin_unlock_irqrestore(&kpc->lock, flags);
+
+ if (irq->trigger == IRQ_TYPE_LEVEL_HIGH)
+ kpc->max_gpios_level_type--;
+ else if (irq->trigger == IRQ_TYPE_EDGE_RISING)
+ kpc->max_gpios_edge_type--;
+
+ irq->source = src;
+ irq->pins[slot] = pin;
+ irq->num_share++;
+}
+
+static void keembay_gpio_irq_enable(struct irq_data *data)
+{
+ struct gpio_chip *gc = irq_data_get_irq_chip_data(data);
+ struct keembay_pinctrl *kpc = gpiochip_get_data(gc);
+ unsigned int trig = irqd_get_trigger_type(data);
+ irq_hw_number_t pin = irqd_to_hwirq(data);
+ int src, slot;
+
+ /* Check which Interrupt source and slot is available */
+ src = keembay_find_free_src(kpc, trig);
+ slot = keembay_find_free_slot(kpc, src);
+
+ if (src < 0 || slot < 0)
+ return;
+
+ if (trig & KEEMBAY_GPIO_SENSE_LOW)
+ keembay_gpio_invert(kpc, pin);
+
+ keembay_gpio_set_irq(kpc, src, slot, pin);
+}
+
+static void keembay_gpio_irq_ack(struct irq_data *data)
+{
+ /*
+ * The keembay_gpio_irq_ack function is needed to handle_edge_irq.
+ * IRQ ack is not possible from the SOC perspective. The IP by itself
+ * is used for handling interrupts which do not come in short-time and
+ * not used as protocol or communication interrupts. All the interrupts
+ * are threaded IRQ interrupts. But this function is expected to be
+ * present as the gpio IP is registered with irq framework. Otherwise
+ * handle_edge_irq() fails.
+ */
+}
+
+static void keembay_gpio_irq_disable(struct irq_data *data)
+{
+ struct gpio_chip *gc = irq_data_get_irq_chip_data(data);
+ struct keembay_pinctrl *kpc = gpiochip_get_data(gc);
+ irq_hw_number_t pin = irqd_to_hwirq(data);
+ unsigned long reg, clump = 0, pos = 0;
+ unsigned int src;
+
+ for (src = 0; src < KEEMBAY_GPIO_NUM_IRQ; src++) {
+ reg = keembay_read_reg(kpc->base1 + KEEMBAY_GPIO_INT_CFG, src);
+ for_each_set_clump8(pos, clump, ®, BITS_PER_TYPE(typeof(reg))) {
+ if ((clump & ~KEEMBAY_GPIO_IRQ_ENABLE) == pin) {
+ keembay_gpio_clear_irq(data, pos, src, pin);
+ return;
+ }
+ }
+ }
+}
+
+static int keembay_gpio_irq_set_type(struct irq_data *data, unsigned int type)
+{
+ struct gpio_chip *gc = irq_data_get_irq_chip_data(data);
+ struct keembay_pinctrl *kpc = gpiochip_get_data(gc);
+
+ /* Change EDGE_BOTH as EDGE_RISING in order to claim the IRQ for power button */
+ if (!kpc->max_gpios_edge_type && (type & IRQ_TYPE_EDGE_BOTH))
+ type = IRQ_TYPE_EDGE_RISING;
+
+ if (!kpc->max_gpios_level_type && (type & IRQ_TYPE_LEVEL_MASK))
+ type = IRQ_TYPE_NONE;
+
+ if (type & IRQ_TYPE_EDGE_BOTH)
+ irq_set_handler_locked(data, handle_edge_irq);
+ else if (type & IRQ_TYPE_LEVEL_MASK)
+ irq_set_handler_locked(data, handle_level_irq);
+ else
+ return -EINVAL;
+
+ return 0;
+}
+
+static int keembay_gpio_add_pin_ranges(struct gpio_chip *chip)
+{
+ struct keembay_pinctrl *kpc = gpiochip_get_data(chip);
+ int ret;
+
+ ret = gpiochip_add_pin_range(chip, dev_name(kpc->dev), 0, 0, chip->ngpio);
+ if (ret)
+ dev_err_probe(kpc->dev, ret, "failed to add GPIO pin range\n");
+ return ret;
+}
+
+static struct irq_chip keembay_gpio_irqchip = {
+ .name = "keembay-gpio",
+ .irq_enable = keembay_gpio_irq_enable,
+ .irq_disable = keembay_gpio_irq_disable,
+ .irq_set_type = keembay_gpio_irq_set_type,
+ .irq_ack = keembay_gpio_irq_ack,
+};
+
+static int keembay_gpiochip_probe(struct keembay_pinctrl *kpc,
+ struct platform_device *pdev)
+{
+ unsigned int i, level_line = 0, edge_line = 0;
+ struct gpio_chip *gc = &kpc->chip;
+ struct gpio_irq_chip *girq;
+
+ /* Setup GPIO IRQ chip */
+ girq = &kpc->chip.irq;
+ girq->chip = &keembay_gpio_irqchip;
+ girq->parent_handler = keembay_gpio_irq_handler;
+ girq->num_parents = KEEMBAY_GPIO_NUM_IRQ;
+ girq->parents = devm_kcalloc(kpc->dev, girq->num_parents,
+ sizeof(*girq->parents), GFP_KERNEL);
+
+ if (!girq->parents)
+ return -ENOMEM;
+
+ /* Setup GPIO chip */
+ gc->label = dev_name(kpc->dev);
+ gc->parent = kpc->dev;
+ gc->request = gpiochip_generic_request;
+ gc->free = gpiochip_generic_free;
+ gc->get_direction = keembay_gpio_get_direction;
+ gc->direction_input = keembay_gpio_set_direction_in;
+ gc->direction_output = keembay_gpio_set_direction_out;
+ gc->get = keembay_gpio_get;
+ gc->set = keembay_gpio_set;
+ gc->set_config = gpiochip_generic_config;
+ gc->base = -1;
+ gc->ngpio = kpc->npins;
+ gc->add_pin_ranges = keembay_gpio_add_pin_ranges;
+
+ for (i = 0; i < KEEMBAY_GPIO_NUM_IRQ; i++) {
+ struct keembay_gpio_irq *kmb_irq = &kpc->irq[i];
+ int irq;
+
+ irq = platform_get_irq_optional(pdev, i);
+ if (irq <= 0)
+ continue;
+
+ girq->parents[i] = irq;
+ kmb_irq->line = girq->parents[i];
+ kmb_irq->source = i;
+ kmb_irq->trigger = irq_get_trigger_type(girq->parents[i]);
+ kmb_irq->num_share = 0;
+
+ if (kmb_irq->trigger == IRQ_TYPE_LEVEL_HIGH)
+ level_line++;
+ else
+ edge_line++;
+ }
+
+ kpc->max_gpios_level_type = level_line * KEEMBAY_GPIO_MAX_PER_IRQ;
+ kpc->max_gpios_edge_type = edge_line * KEEMBAY_GPIO_MAX_PER_IRQ;
+
+ girq->default_type = IRQ_TYPE_NONE;
+ girq->handler = handle_bad_irq;
+
+ return devm_gpiochip_add_data(kpc->dev, gc, kpc);
+}
+
+static int keembay_build_groups(struct keembay_pinctrl *kpc)
+{
+ struct group_desc *grp;
+ unsigned int i;
+
+ kpc->ngroups = kpc->npins;
+ grp = devm_kcalloc(kpc->dev, kpc->ngroups, sizeof(*grp), GFP_KERNEL);
+ if (!grp)
+ return -ENOMEM;
+
+ /* Each pin is categorised as one group */
+ for (i = 0; i < kpc->ngroups; i++) {
+ const struct pinctrl_pin_desc *pdesc = keembay_pins + i;
+ struct group_desc *kmb_grp = grp + i;
+
+ kmb_grp->name = pdesc->name;
+ kmb_grp->pins = (int *)&pdesc->number;
+ pinctrl_generic_add_group(kpc->pctrl, kmb_grp->name,
+ kmb_grp->pins, 1, NULL);
+ }
+
+ return 0;
+}
+
+static int keembay_pinctrl_reg(struct keembay_pinctrl *kpc, struct device *dev)
+{
+ int ret;
+
+ keembay_pinctrl_desc.pins = keembay_pins;
+ ret = of_property_read_u32(dev->of_node, "ngpios", &kpc->npins);
+ if (ret < 0)
+ return ret;
+ keembay_pinctrl_desc.npins = kpc->npins;
+
+ kpc->pctrl = devm_pinctrl_register(kpc->dev, &keembay_pinctrl_desc, kpc);
+
+ return PTR_ERR_OR_ZERO(kpc->pctrl);
+}
+
+static int keembay_add_functions(struct keembay_pinctrl *kpc,
+ struct function_desc *function)
+{
+ unsigned int i;
+
+ /* Assign the groups for each function */
+ for (i = 0; i < kpc->npins; i++) {
+ const struct pinctrl_pin_desc *pdesc = keembay_pins + i;
+ struct keembay_mux_desc *mux = pdesc->drv_data;
+
+ while (mux->name) {
+ struct function_desc *func;
+ const char **grp;
+ size_t grp_size;
+ u32 j, grp_num;
+
+ for (j = 0; j < kpc->nfuncs; j++) {
+ if (!strcmp(mux->name, function[j].name))
+ break;
+ }
+
+ if (j == kpc->nfuncs)
+ return -EINVAL;
+
+ func = function + j;
+ grp_num = func->num_group_names;
+ grp_size = sizeof(*func->group_names);
+
+ if (!func->group_names) {
+ func->group_names = devm_kcalloc(kpc->dev,
+ grp_num,
+ grp_size,
+ GFP_KERNEL);
+ if (!func->group_names)
+ return -ENOMEM;
+ }
+
+ grp = func->group_names;
+ while (*grp)
+ grp++;
+
+ *grp = pdesc->name;
+ mux++;
+ }
+ }
+
+ /* Add all functions */
+ for (i = 0; i < kpc->nfuncs; i++) {
+ pinmux_generic_add_function(kpc->pctrl,
+ function[i].name,
+ function[i].group_names,
+ function[i].num_group_names,
+ function[i].data);
+ }
+
+ return 0;
+}
+
+static int keembay_build_functions(struct keembay_pinctrl *kpc)
+{
+ struct function_desc *keembay_funcs, *new_funcs;
+ int i;
+
+ /* Allocate total number of functions */
+ kpc->nfuncs = 0;
+ keembay_funcs = kcalloc(kpc->npins * 8, sizeof(*keembay_funcs), GFP_KERNEL);
+ if (!keembay_funcs)
+ return -ENOMEM;
+
+ /* Find total number of functions and each's properties */
+ for (i = 0; i < kpc->npins; i++) {
+ const struct pinctrl_pin_desc *pdesc = keembay_pins + i;
+ struct keembay_mux_desc *mux = pdesc->drv_data;
+
+ while (mux->name) {
+ struct function_desc *fdesc = keembay_funcs;
+
+ while (fdesc->name) {
+ if (!strcmp(mux->name, fdesc->name)) {
+ fdesc->num_group_names++;
+ break;
+ }
+
+ fdesc++;
+ }
+
+ if (!fdesc->name) {
+ fdesc->name = mux->name;
+ fdesc->num_group_names = 1;
+ fdesc->data = &mux->mode;
+ kpc->nfuncs++;
+ }
+
+ mux++;
+ }
+ }
+
+ /* Reallocate memory based on actual number of functions */
+ new_funcs = krealloc(keembay_funcs, kpc->nfuncs * sizeof(*new_funcs), GFP_KERNEL);
+ if (!new_funcs) {
+ kfree(keembay_funcs);
+ return -ENOMEM;
+ }
+
+ return keembay_add_functions(kpc, new_funcs);
+}
+
+static const struct keembay_pin_soc keembay_data = {
+ .pins = keembay_pins,
+};
+
+static const struct of_device_id keembay_pinctrl_match[] = {
+ { .compatible = "intel,keembay-pinctrl", .data = &keembay_data },
+ { }
+};
+MODULE_DEVICE_TABLE(of, keembay_pinctrl_match);
+
+static int keembay_pinctrl_probe(struct platform_device *pdev)
+{
+ struct device *dev = &pdev->dev;
+ struct keembay_pinctrl *kpc;
+ int ret;
+
+ kpc = devm_kzalloc(dev, sizeof(*kpc), GFP_KERNEL);
+ if (!kpc)
+ return -ENOMEM;
+
+ kpc->dev = dev;
+ kpc->soc = device_get_match_data(dev);
+
+ kpc->base0 = devm_platform_ioremap_resource(pdev, 0);
+ if (IS_ERR(kpc->base0))
+ return PTR_ERR(kpc->base0);
+
+ kpc->base1 = devm_platform_ioremap_resource(pdev, 1);
+ if (IS_ERR(kpc->base1))
+ return PTR_ERR(kpc->base1);
+
+ raw_spin_lock_init(&kpc->lock);
+
+ ret = keembay_pinctrl_reg(kpc, dev);
+ if (ret)
+ return ret;
+
+ ret = keembay_build_groups(kpc);
+ if (ret)
+ return ret;
+
+ ret = keembay_build_functions(kpc);
+ if (ret)
+ return ret;
+
+ ret = keembay_gpiochip_probe(kpc, pdev);
+ if (ret)
+ return ret;
+
+ platform_set_drvdata(pdev, kpc);
+
+ return 0;
+}
+
+static struct platform_driver keembay_pinctrl_driver = {
+ .probe = keembay_pinctrl_probe,
+ .driver = {
+ .name = "keembay-pinctrl",
+ .of_match_table = keembay_pinctrl_match,
+ },
+};
+module_platform_driver(keembay_pinctrl_driver);
+
+MODULE_AUTHOR("Muhammad Husaini Zulkifli <muhammad.husaini.zulkifli@intel.com>");
+MODULE_AUTHOR("Vijayakannan Ayyathurai <vijayakannan.ayyathurai@intel.com>");
+MODULE_AUTHOR("Lakshmi Sowjanya D <lakshmi.sowjanya.d@intel.com>");
+MODULE_DESCRIPTION("Intel Keem Bay SoC pinctrl/GPIO driver");
+MODULE_LICENSE("GPL");
projects / linux.git / commitdiff