[PATCH v4 2/2] pinctrl: Add Intel Keem Bay pinctrl driver

From: lakshmi . sowjanya . d
Date: Fri Aug 06 2021 - 10:25:42 EST

From: Lakshmi Sowjanya D <lakshmi.sowjanya.d@xxxxxxxxx>

About Intel Keem Bay:
-------------------
Intel Keem Bay is a computer vision AI accelerator SoC based on ARM CPU.
Documentation of Keem Bay: Documentation/vpu/vpu-stack-overview.rst.

Pinctrl IP:
----------
The SoC has a customised pinmux controller IP which controls pin
multiplexing and configuration.

Keem Bay pinctrl IP is not based on and have nothing in common with the
existing pinctrl drivers. The registers used are incompatible with the
existing drivers, so it requires a new driver.

Add pinctrl driver to enable pin control support in the Intel Keem Bay SoC.

Co-developed-by: Vineetha G. Jaya Kumaran <vineetha.g.jaya.kumaran@xxxxxxxxx>
Signed-off-by: Vineetha G. Jaya Kumaran <vineetha.g.jaya.kumaran@xxxxxxxxx>
Co-developed-by: Vijayakannan Ayyathurai <vijayakannan.ayyathurai@xxxxxxxxx>
Signed-off-by: Vijayakannan Ayyathurai <vijayakannan.ayyathurai@xxxxxxxxx>
Signed-off-by: Lakshmi Sowjanya D <lakshmi.sowjanya.d@xxxxxxxxx>
Reviewed-by: Mark Gross <mgross@xxxxxxxxxxxxxxx>
Reviewed-by: Linus Walleij <linus.walleij@xxxxxxxxxx>
---
drivers/pinctrl/Kconfig | 19 +
drivers/pinctrl/Makefile | 1 +
drivers/pinctrl/pinctrl-keembay.c | 1731 +++++++++++++++++++++++++++++
3 files changed, 1751 insertions(+)
create mode 100644 drivers/pinctrl/pinctrl-keembay.c

diff --git a/drivers/pinctrl/Kconfig b/drivers/pinctrl/Kconfig
index f38f12801f18..aa547bf9c2fd 100644
--- a/drivers/pinctrl/Kconfig
+++ b/drivers/pinctrl/Kconfig
@@ -404,6 +404,25 @@ config PINCTRL_K210
Add support for the Canaan Kendryte K210 RISC-V SOC Field
Programmable IO Array (FPIOA) controller.

+config PINCTRL_KEEMBAY
+ tristate "Pinctrl driver for Intel Keem Bay SoC"
+ depends on ARCH_KEEMBAY || (ARM64 && COMPILE_TEST)
+ depends on HAS_IOMEM
+ select PINMUX
+ select PINCONF
+ select GENERIC_PINCONF
+ select GENERIC_PINCTRL_GROUPS
+ select GENERIC_PINMUX_FUNCTIONS
+ select GPIOLIB
+ select GPIOLIB_IRQCHIP
+ select GPIO_GENERIC
+ help
+ This selects pin control driver for the Intel Keembay SoC.
+ It provides pin config functions such as pullup, pulldown,
+ interrupt, drive strength, sec lock, schmitt trigger, slew
+ rate control and direction control. This module will be
+ called as pinctrl-keembay.
+
source "drivers/pinctrl/actions/Kconfig"
source "drivers/pinctrl/aspeed/Kconfig"
source "drivers/pinctrl/bcm/Kconfig"
diff --git a/drivers/pinctrl/Makefile b/drivers/pinctrl/Makefile
index 5ef5334a797f..200073bcc2c1 100644
--- a/drivers/pinctrl/Makefile
+++ b/drivers/pinctrl/Makefile
@@ -47,6 +47,7 @@ obj-$(CONFIG_PINCTRL_OCELOT) += pinctrl-ocelot.o
obj-$(CONFIG_PINCTRL_MICROCHIP_SGPIO) += pinctrl-microchip-sgpio.o
obj-$(CONFIG_PINCTRL_EQUILIBRIUM) += pinctrl-equilibrium.o
obj-$(CONFIG_PINCTRL_K210) += pinctrl-k210.o
+obj-$(CONFIG_PINCTRL_KEEMBAY) += pinctrl-keembay.o

obj-y += actions/
obj-$(CONFIG_ARCH_ASPEED) += aspeed/
diff --git a/drivers/pinctrl/pinctrl-keembay.c b/drivers/pinctrl/pinctrl-keembay.c
new file mode 100644
index 000000000000..2bce563d5b8b
--- /dev/null
+++ b/drivers/pinctrl/pinctrl-keembay.c
@@ -0,0 +1,1731 @@
+// 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, &reg, 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(&reg, 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, &reg, 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@xxxxxxxxx>");
+MODULE_AUTHOR("Vijayakannan Ayyathurai <vijayakannan.ayyathurai@xxxxxxxxx>");
+MODULE_AUTHOR("Lakshmi Sowjanya D <lakshmi.sowjanya.d@xxxxxxxxx>");
+MODULE_DESCRIPTION("Intel Keem Bay SoC pinctrl/GPIO driver");
+MODULE_LICENSE("GPL");
--
2.17.1