diff options
| -rw-r--r-- | drivers/pinctrl/Kconfig | 19 | ||||
| -rw-r--r-- | drivers/pinctrl/Makefile | 1 | ||||
| -rw-r--r-- | drivers/pinctrl/pinctrl-thunderbay.c | 1294 |
3 files changed, 0 insertions, 1314 deletions
diff --git a/drivers/pinctrl/Kconfig b/drivers/pinctrl/Kconfig index fc6e2858c90c..5787c579dcf6 100644 --- a/drivers/pinctrl/Kconfig +++ b/drivers/pinctrl/Kconfig @@ -480,25 +480,6 @@ config PINCTRL_TB10X depends on OF && ARC_PLAT_TB10X select GPIOLIB -config PINCTRL_THUNDERBAY - tristate "Generic pinctrl and GPIO driver for Intel Thunder Bay SoC" - depends on ARCH_THUNDERBAY || (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 Thunder Bay SoC. - It provides pin config functions such as pull-up, pull-down, - interrupt, drive strength, sec lock, Schmitt trigger, slew - rate control and direction control. This module will be - called as pinctrl-thunderbay. - config PINCTRL_ZYNQ bool "Pinctrl driver for Xilinx Zynq" depends on ARCH_ZYNQ diff --git a/drivers/pinctrl/Makefile b/drivers/pinctrl/Makefile index 930307e248c5..e196c6e324ad 100644 --- a/drivers/pinctrl/Makefile +++ b/drivers/pinctrl/Makefile @@ -49,7 +49,6 @@ obj-$(CONFIG_PINCTRL_ST) += pinctrl-st.o obj-$(CONFIG_PINCTRL_STMFX) += pinctrl-stmfx.o obj-$(CONFIG_PINCTRL_SX150X) += pinctrl-sx150x.o obj-$(CONFIG_PINCTRL_TB10X) += pinctrl-tb10x.o -obj-$(CONFIG_PINCTRL_THUNDERBAY) += pinctrl-thunderbay.o obj-$(CONFIG_PINCTRL_ZYNQMP) += pinctrl-zynqmp.o obj-$(CONFIG_PINCTRL_ZYNQ) += pinctrl-zynq.o diff --git a/drivers/pinctrl/pinctrl-thunderbay.c b/drivers/pinctrl/pinctrl-thunderbay.c deleted file mode 100644 index 7a5ff955877c..000000000000 --- a/drivers/pinctrl/pinctrl-thunderbay.c +++ /dev/null @@ -1,1294 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -/* - * Intel Thunder Bay SOC pinctrl/GPIO driver - * - * Copyright (C) 2021 Intel Corporation - */ - -#include <linux/device.h> -#include <linux/err.h> -#include <linux/gpio/driver.h> -#include <linux/init.h> -#include <linux/interrupt.h> -#include <linux/io.h> -#include <linux/irq.h> -#include <linux/module.h> -#include <linux/of.h> -#include <linux/of_irq.h> - -#include <linux/pinctrl/pinconf.h> -#include <linux/pinctrl/pinconf-generic.h> -#include <linux/pinctrl/pinctrl.h> -#include <linux/pinctrl/pinmux.h> - -#include <linux/platform_device.h> -#include <linux/slab.h> -#include <linux/spinlock.h> - -#include "core.h" -#include "pinconf.h" -#include "pinctrl-utils.h" -#include "pinmux.h" - -/* Bit 0:2 and 4:6 should be used for mode selection */ -#define THB_GPIO_PINMUX_MODE_0 0x00 -#define THB_GPIO_PINMUX_MODE_1 0x11 -#define THB_GPIO_PINMUX_MODE_2 0x22 -#define THB_GPIO_PINMUX_MODE_3 0x33 -#define THB_GPIO_PINMUX_MODE_4 0x44 - -#define THB_GPIO_PORT_SELECT_MASK BIT(8) -#define THB_GPIO_PAD_DIRECTION_MASK BIT(10) -#define THB_GPIO_SPU_MASK BIT(11) -#define THB_GPIO_PULL_ENABLE_MASK BIT(12) -#define THB_GPIO_PULL_UP_MASK BIT(13) -#define THB_GPIO_PULL_DOWN_MASK BIT(14) -#define THB_GPIO_ENAQ_MASK BIT(15) -/* bit 16-19: Drive Strength for the Pad */ -#define THB_GPIO_DRIVE_STRENGTH_MASK (0xF0000) -#define THB_GPIO_SLEW_RATE_MASK BIT(20) -#define THB_GPIO_SCHMITT_TRIGGER_MASK BIT(21) - -#define THB_GPIO_REG_OFFSET(pin_num) ((pin_num) * (0x4)) -#define THB_MAX_MODE_SUPPORTED (5u) -#define THB_MAX_NPINS_SUPPORTED (67u) - -/* store Pin status */ -static u32 thb_pinx_status[THB_MAX_NPINS_SUPPORTED]; - -struct thunderbay_mux_desc { - u8 mode; - const char *name; -}; - -#define THUNDERBAY_PIN_DESC(pin_number, pin_name, ...) { \ - .number = pin_number, \ - .name = pin_name, \ - .drv_data = &(struct thunderbay_mux_desc[]) { \ - __VA_ARGS__, { } }, \ -} - -#define THUNDERBAY_MUX(pin_mode, pin_function) { \ - .mode = pin_mode, \ - .name = pin_function, \ -} - -struct thunderbay_pin_soc { - const struct pinctrl_pin_desc *pins; - unsigned int npins; -}; - -/** - * struct thunderbay_pinctrl - Intel Thunderbay pinctrl structure - * @pctrl: Pointer to the pin controller device - * @base0: First register base address - * @dev: Pointer to the device structure - * @chip: GPIO chip used by this pin controller - * @soc: Pin control configuration data based on SoC - * @ngroups: Number of pin groups available - * @nfuncs: Number of pin functions available - */ -struct thunderbay_pinctrl { - struct pinctrl_dev *pctrl; - void __iomem *base0; - struct device *dev; - struct gpio_chip chip; - const struct thunderbay_pin_soc *soc; - unsigned int ngroups; - unsigned int nfuncs; -}; - -static const struct pinctrl_pin_desc thunderbay_pins[] = { - THUNDERBAY_PIN_DESC(0, "GPIO0", - THUNDERBAY_MUX(0X0, "I2C0_M0"), - THUNDERBAY_MUX(0X1, "EMPTY_M1"), - THUNDERBAY_MUX(0X2, "EMPTY_M2"), - THUNDERBAY_MUX(0X3, "EMPTY_M3"), - THUNDERBAY_MUX(0X4, "GPIO_M4")), - THUNDERBAY_PIN_DESC(1, "GPIO1", - THUNDERBAY_MUX(0X0, "I2C0_M0"), - THUNDERBAY_MUX(0X1, "EMPTY_M1"), - THUNDERBAY_MUX(0X2, "EMPTY_M2"), - THUNDERBAY_MUX(0X3, "EMPTY_M3"), - THUNDERBAY_MUX(0X4, "GPIO_M4")), - THUNDERBAY_PIN_DESC(2, "GPIO2", - THUNDERBAY_MUX(0X0, "I2C1_M0"), - THUNDERBAY_MUX(0X1, "EMPTY_M1"), - THUNDERBAY_MUX(0X2, "EMPTY_M2"), - THUNDERBAY_MUX(0X3, "EMPTY_M3"), - THUNDERBAY_MUX(0X4, "GPIO_M4")), - THUNDERBAY_PIN_DESC(3, "GPIO3", - THUNDERBAY_MUX(0X0, "I2C1_M0"), - THUNDERBAY_MUX(0X1, "EMPTY_M1"), - THUNDERBAY_MUX(0X2, "EMPTY_M2"), - THUNDERBAY_MUX(0X3, "EMPTY_M3"), - THUNDERBAY_MUX(0X4, "GPIO_M4")), - THUNDERBAY_PIN_DESC(4, "GPIO4", - THUNDERBAY_MUX(0X0, "I2C2_M0"), - THUNDERBAY_MUX(0X1, "EMPTY_M1"), - THUNDERBAY_MUX(0X2, "EMPTY_M2"), - THUNDERBAY_MUX(0X3, "EMPTY_M3"), - THUNDERBAY_MUX(0X4, "GPIO_M4")), - THUNDERBAY_PIN_DESC(5, "GPIO5", - THUNDERBAY_MUX(0X0, "I2C2_M0"), - THUNDERBAY_MUX(0X1, "EMPTY_M1"), - THUNDERBAY_MUX(0X2, "EMPTY_M2"), - THUNDERBAY_MUX(0X3, "EMPTY_M3"), - THUNDERBAY_MUX(0X4, "GPIO_M4")), - THUNDERBAY_PIN_DESC(6, "GPIO6", - THUNDERBAY_MUX(0X0, "I2C3_M0"), - THUNDERBAY_MUX(0X1, "EMPTY_M1"), - THUNDERBAY_MUX(0X2, "EMPTY_M2"), - THUNDERBAY_MUX(0X3, "EMPTY_M3"), - THUNDERBAY_MUX(0X4, "GPIO_M4")), - THUNDERBAY_PIN_DESC(7, "GPIO7", - THUNDERBAY_MUX(0X0, "I2C3_M0"), - THUNDERBAY_MUX(0X1, "EMPTY_M1"), - THUNDERBAY_MUX(0X2, "EMPTY_M2"), - THUNDERBAY_MUX(0X3, "EMPTY_M3"), - THUNDERBAY_MUX(0X4, "GPIO_M4")), - THUNDERBAY_PIN_DESC(8, "GPIO8", - THUNDERBAY_MUX(0X0, "I2C4_M0"), - THUNDERBAY_MUX(0X1, "EMPTY_M1"), - THUNDERBAY_MUX(0X2, "EMPTY_M2"), - THUNDERBAY_MUX(0X3, "EMPTY_M3"), - THUNDERBAY_MUX(0X4, "GPIO_M4")), - THUNDERBAY_PIN_DESC(9, "GPIO9", - THUNDERBAY_MUX(0X0, "I2C4_M0"), - THUNDERBAY_MUX(0X1, "EMPTY_M1"), - THUNDERBAY_MUX(0X2, "EMPTY_M2"), - THUNDERBAY_MUX(0X3, "EMPTY_M3"), - THUNDERBAY_MUX(0X4, "GPIO_M4")), - THUNDERBAY_PIN_DESC(10, "GPIO10", - THUNDERBAY_MUX(0X0, "UART0_M0"), - THUNDERBAY_MUX(0X1, "RT0_DSU_M1"), - THUNDERBAY_MUX(0X2, "EMPTY_M2"), - THUNDERBAY_MUX(0X3, "EMPTY_M3"), - THUNDERBAY_MUX(0X4, "GPIO_M4")), - THUNDERBAY_PIN_DESC(11, "GPIO11", - THUNDERBAY_MUX(0X0, "UART0_M0"), - THUNDERBAY_MUX(0X1, "RT0_DSU_M1"), - THUNDERBAY_MUX(0X2, "EMPTY_M2"), - THUNDERBAY_MUX(0X3, "EMPTY_M3"), - THUNDERBAY_MUX(0X4, "GPIO_M4")), - THUNDERBAY_PIN_DESC(12, "GPIO12", - THUNDERBAY_MUX(0X0, "UART0_M0"), - THUNDERBAY_MUX(0X1, "RT1_DSU_M1"), - THUNDERBAY_MUX(0X2, "EMPTY_M2"), - THUNDERBAY_MUX(0X3, "EMPTY_M3"), - THUNDERBAY_MUX(0X4, "GPIO_M4")), - THUNDERBAY_PIN_DESC(13, "GPIO13", - THUNDERBAY_MUX(0X0, "UART0_M0"), - THUNDERBAY_MUX(0X1, "RT1_DSU_M1"), - THUNDERBAY_MUX(0X2, "EMPTY_M2"), - THUNDERBAY_MUX(0X3, "EMPTY_M3"), - THUNDERBAY_MUX(0X4, "GPIO_M4")), - THUNDERBAY_PIN_DESC(14, "GPIO14", - THUNDERBAY_MUX(0X0, "UART1_M0"), - THUNDERBAY_MUX(0X1, "RT2_DSU_M1"), - THUNDERBAY_MUX(0X2, "EMPTY_M2"), - THUNDERBAY_MUX(0X3, "TRIGGER_M3"), - THUNDERBAY_MUX(0X4, "GPIO_M4")), - THUNDERBAY_PIN_DESC(15, "GPIO15", - THUNDERBAY_MUX(0X0, "UART1_M0"), - THUNDERBAY_MUX(0X1, "RT2_DSU_M1"), - THUNDERBAY_MUX(0X2, "EMPTY_M2"), - THUNDERBAY_MUX(0X3, "TRIGGER_M3"), - THUNDERBAY_MUX(0X4, "GPIO_M4")), - THUNDERBAY_PIN_DESC(16, "GPIO16", - THUNDERBAY_MUX(0X0, "UART1_M0"), - THUNDERBAY_MUX(0X1, "RT3_DSU_M1"), - THUNDERBAY_MUX(0X2, "EMPTY_M2"), - THUNDERBAY_MUX(0X3, "EMPTY_M3"), - THUNDERBAY_MUX(0X4, "GPIO_M4")), - THUNDERBAY_PIN_DESC(17, "GPIO17", - THUNDERBAY_MUX(0X0, "UART1_M0"), - THUNDERBAY_MUX(0X1, "RT3_DSU_M1"), - THUNDERBAY_MUX(0X2, "EMPTY_M2"), - THUNDERBAY_MUX(0X3, "EMPTY_M3"), - THUNDERBAY_MUX(0X4, "GPIO_M4")), - THUNDERBAY_PIN_DESC(18, "GPIO18", - THUNDERBAY_MUX(0X0, "SPI0_M0"), - THUNDERBAY_MUX(0X1, "EMPTY_M1"), - THUNDERBAY_MUX(0X2, "EMPTY_M2"), - THUNDERBAY_MUX(0X3, "EMPTY_M3"), - THUNDERBAY_MUX(0X4, "GPIO_M4")), - THUNDERBAY_PIN_DESC(19, "GPIO19", - THUNDERBAY_MUX(0X0, "SPI0_M0"), - THUNDERBAY_MUX(0X1, "EMPTY_M1"), - THUNDERBAY_MUX(0X2, "EMPTY_M2"), - THUNDERBAY_MUX(0X3, "EMPTY_M3"), - THUNDERBAY_MUX(0X4, "GPIO_M4")), - THUNDERBAY_PIN_DESC(20, "GPIO20", - THUNDERBAY_MUX(0X0, "SPI0_M0"), - THUNDERBAY_MUX(0X1, "EMPTY_M1"), - THUNDERBAY_MUX(0X2, "TPIU_TRACE_M2"), - THUNDERBAY_MUX(0X3, "EMPTY_M3"), - THUNDERBAY_MUX(0X4, "GPIO_M4")), - THUNDERBAY_PIN_DESC(21, "GPIO21", - THUNDERBAY_MUX(0X0, "SPI0_M0"), - THUNDERBAY_MUX(0X1, "EMPTY_M1"), - THUNDERBAY_MUX(0X2, "TPIU_TRACE_M2"), - THUNDERBAY_MUX(0X3, "EMPTY_M3"), - THUNDERBAY_MUX(0X4, "GPIO_M4")), - THUNDERBAY_PIN_DESC(22, "GPIO22", - THUNDERBAY_MUX(0X0, "SPI1_M0"), - THUNDERBAY_MUX(0X1, "EMPTY_M0"), - THUNDERBAY_MUX(0X2, "EMPTY_M2"), - THUNDERBAY_MUX(0X3, "EMPTY_M3"), - THUNDERBAY_MUX(0X4, "GPIO_M4")), - THUNDERBAY_PIN_DESC(23, "GPIO23", - THUNDERBAY_MUX(0X0, "SPI1_M0"), - THUNDERBAY_MUX(0X1, "EMPTY_M1"), - THUNDERBAY_MUX(0X2, "EMPTY_M2"), - THUNDERBAY_MUX(0X3, "EMPTY_M3"), - THUNDERBAY_MUX(0X4, "GPIO_M4")), - THUNDERBAY_PIN_DESC(24, "GPIO24", - THUNDERBAY_MUX(0X0, "SPI1_M0"), - THUNDERBAY_MUX(0X1, "TPIU_TRACE_M1"), - THUNDERBAY_MUX(0X2, "EMPTY_M2"), - THUNDERBAY_MUX(0X3, "EMPTY_M3"), - THUNDERBAY_MUX(0X4, "GPIO_M4")), - THUNDERBAY_PIN_DESC(25, "GPIO25", - THUNDERBAY_MUX(0X0, "SPI1_M0"), - THUNDERBAY_MUX(0X1, "TPIU_TRACE_M1"), - THUNDERBAY_MUX(0X2, "EMPTY_M2"), - THUNDERBAY_MUX(0X3, "EMPTY_M3"), - THUNDERBAY_MUX(0X4, "GPIO_M4")), - THUNDERBAY_PIN_DESC(26, "GPIO26", - THUNDERBAY_MUX(0X0, "ETHER0_M0"), - THUNDERBAY_MUX(0X1, "TPIU_DATA_M1"), - THUNDERBAY_MUX(0X2, "TPIU_DATA_M2"), - THUNDERBAY_MUX(0X3, "DEBUG_M3"), - THUNDERBAY_MUX(0X4, "GPIO_M4")), - THUNDERBAY_PIN_DESC(27, "GPIO27", - THUNDERBAY_MUX(0X0, "ETHER0_M0"), - THUNDERBAY_MUX(0X1, "TPIU_DATA_M1"), - THUNDERBAY_MUX(0X2, "TPIU_DATA_M2"), - THUNDERBAY_MUX(0X3, "DEBUG_M3"), - THUNDERBAY_MUX(0X4, "GPIO_M4")), - THUNDERBAY_PIN_DESC(28, "GPIO28", - THUNDERBAY_MUX(0X0, "ETHER0_M0"), - THUNDERBAY_MUX(0X1, "TPIU_DATA_M1"), - THUNDERBAY_MUX(0X2, "TPIU_DATA_M2"), - THUNDERBAY_MUX(0X3, "DEBUG_M3"), - THUNDERBAY_MUX(0X4, "GPIO_M4")), - THUNDERBAY_PIN_DESC(29, "GPIO29", - THUNDERBAY_MUX(0X0, "ETHER0_M0"), - THUNDERBAY_MUX(0X1, "TPIU_DATA_M1"), - THUNDERBAY_MUX(0X2, "TPIU_DATA_M2"), - THUNDERBAY_MUX(0X3, "DEBUG_M3"), - THUNDERBAY_MUX(0X4, "GPIO_M4")), - THUNDERBAY_PIN_DESC(30, "GPIO30", - THUNDERBAY_MUX(0X0, "ETHER0_M0"), - THUNDERBAY_MUX(0X1, "TPIU_DATA_M1"), - THUNDERBAY_MUX(0X2, "TPIU_DATA_M2"), - THUNDERBAY_MUX(0X3, "DEBUG_M3"), - THUNDERBAY_MUX(0X4, "GPIO_M4")), - THUNDERBAY_PIN_DESC(31, "GPIO31", - THUNDERBAY_MUX(0X0, "ETHER0_M0"), - THUNDERBAY_MUX(0X1, "TPIU_DATA_M1"), - THUNDERBAY_MUX(0X2, "TPIU_DATA_M2"), - THUNDERBAY_MUX(0X3, "DEBUG_M3"), - THUNDERBAY_MUX(0X4, "GPIO_M4")), - THUNDERBAY_PIN_DESC(32, "GPIO32", - THUNDERBAY_MUX(0X0, "ETHER0_M0"), - THUNDERBAY_MUX(0X1, "TPIU_DATA_M1"), - THUNDERBAY_MUX(0X2, "TPIU_DATA_M2"), - THUNDERBAY_MUX(0X3, "DEBUG_M3"), - THUNDERBAY_MUX(0X4, "GPIO_M4")), - THUNDERBAY_PIN_DESC(33, "GPIO33", - THUNDERBAY_MUX(0X0, "ETHER0_M0"), - THUNDERBAY_MUX(0X1, "TPIU_DATA_M1"), - THUNDERBAY_MUX(0X2, "TPIU_DATA_M2"), - THUNDERBAY_MUX(0X3, "DEBUG_M3"), - THUNDERBAY_MUX(0X4, "GPIO_M4")), - THUNDERBAY_PIN_DESC(34, "GPIO34", - THUNDERBAY_MUX(0X0, "ETHER0_M0"), - THUNDERBAY_MUX(0X1, "TPIU_DATA_M1"), - THUNDERBAY_MUX(0X2, "TPIU_DATA_M2"), - THUNDERBAY_MUX(0X3, "DIG_VIEW_0"), - THUNDERBAY_MUX(0X4, "GPIO_M4")), - THUNDERBAY_PIN_DESC(35, "GPIO35", - THUNDERBAY_MUX(0X0, "ETHER0_M0"), - THUNDERBAY_MUX(0X1, "TPIU_DATA_M1"), - THUNDERBAY_MUX(0X2, "TPIU_DATA_M2"), - THUNDERBAY_MUX(0X3, "DIG_VIEW_1"), - THUNDERBAY_MUX(0X4, "GPIO_M4")), - THUNDERBAY_PIN_DESC(36, "GPIO36", - THUNDERBAY_MUX(0X0, "ETHER0_M0"), - THUNDERBAY_MUX(0X1, "TPIU_DATA_M1"), - THUNDERBAY_MUX(0X2, "TPIU_DATA_M2"), - THUNDERBAY_MUX(0X3, "CPR_IO_OUT_CLK_0"), - THUNDERBAY_MUX(0X4, "GPIO_M4")), - THUNDERBAY_PIN_DESC(37, "GPIO37", - THUNDERBAY_MUX(0X0, "ETHER0_M0"), - THUNDERBAY_MUX(0X1, "TPIU_DATA_M1"), - THUNDERBAY_MUX(0X2, "TPIU_DATA_M2"), - THUNDERBAY_MUX(0X3, "CPR_IO_OUT_CLK_1"), - THUNDERBAY_MUX(0X4, "GPIO_M4")), - THUNDERBAY_PIN_DESC(38, "GPIO38", - THUNDERBAY_MUX(0X0, "ETHER0_M0"), - THUNDERBAY_MUX(0X1, "TPIU_DATA_M1"), - THUNDERBAY_MUX(0X2, "TPIU_DATA_M2"), - THUNDERBAY_MUX(0X3, "CPR_IO_OUT_CLK_2"), - THUNDERBAY_MUX(0X4, "GPIO_M4")), - THUNDERBAY_PIN_DESC(39, "GPIO39", - THUNDERBAY_MUX(0X0, "ETHER0_M0"), - THUNDERBAY_MUX(0X1, "TPIU_DATA_M1"), - THUNDERBAY_MUX(0X2, "TPIU_DATA_M2"), - THUNDERBAY_MUX(0X3, "CPR_IO_OUT_CLK_3"), - THUNDERBAY_MUX(0X4, "GPIO_M4")), - THUNDERBAY_PIN_DESC(40, "GPIO40", - THUNDERBAY_MUX(0X0, "ETHER0_M0"), - THUNDERBAY_MUX(0X1, "TPIU_DATA_M1"), - THUNDERBAY_MUX(0X2, "TPIU_DATA_M2"), - THUNDERBAY_MUX(0X3, "EMPTY_M3"), - THUNDERBAY_MUX(0X4, "GPIO_M4")), - THUNDERBAY_PIN_DESC(41, "GPIO41", - THUNDERBAY_MUX(0X0, "POWER_INTERRUPT_MAX_PLATFORM_POWER_M0"), - THUNDERBAY_MUX(0X1, "TPIU_DATA_M1"), - THUNDERBAY_MUX(0X2, "TPIU_DATA_M2"), - THUNDERBAY_MUX(0X3, "EMPTY_M3"), - THUNDERBAY_MUX(0X4, "GPIO_M4")), - THUNDERBAY_PIN_DESC(42, "GPIO42", - THUNDERBAY_MUX(0X0, "ETHER1_M0"), - THUNDERBAY_MUX(0X1, "TPIU_DATA_M1"), - THUNDERBAY_MUX(0X2, "TPIU_DATA_M2"), - THUNDERBAY_MUX(0X3, "DEBUG_M3"), - THUNDERBAY_MUX(0X4, "GPIO_M4")), - THUNDERBAY_PIN_DESC(43, "GPIO43", - THUNDERBAY_MUX(0X0, "ETHER1_M0"), - THUNDERBAY_MUX(0X1, "TPIU_DATA_M1"), - THUNDERBAY_MUX(0X2, "TPIU_DATA_M2"), - THUNDERBAY_MUX(0X3, "DEBUG_M3"), - THUNDERBAY_MUX(0X4, "GPIO_M4")), - THUNDERBAY_PIN_DESC(44, "GPIO44", - THUNDERBAY_MUX(0X0, "ETHER1_M0"), - THUNDERBAY_MUX(0X1, "TPIU_DATA_M1"), - THUNDERBAY_MUX(0X2, "TPIU_DATA_M2"), - THUNDERBAY_MUX(0X3, "DEBUG_M3"), - THUNDERBAY_MUX(0X4, "GPIO_M4")), - THUNDERBAY_PIN_DESC(45, "GPIO45", - THUNDERBAY_MUX(0X0, "ETHER1_M0"), - THUNDERBAY_MUX(0X1, "TPIU_DATA_M1"), - THUNDERBAY_MUX(0X2, "TPIU_DATA_M2"), - THUNDERBAY_MUX(0X3, "DEBUG_M3"), - THUNDERBAY_MUX(0X4, "GPIO_M4")), - THUNDERBAY_PIN_DESC(46, "GPIO46", - THUNDERBAY_MUX(0X0, "ETHER1_M0"), - THUNDERBAY_MUX(0X1, "TPIU_DATA_M1"), - THUNDERBAY_MUX(0X2, "TPIU_DATA_M2"), - THUNDERBAY_MUX(0X3, "DEBUG_M3"), - THUNDERBAY_MUX(0X4, "GPIO_M4")), - THUNDERBAY_PIN_DESC(47, "GPIO47", - THUNDERBAY_MUX(0X0, "ETHER1_M0"), - THUNDERBAY_MUX(0X1, "TPIU_DATA_M1"), - THUNDERBAY_MUX(0X2, "TPIU_DATA_M2"), - THUNDERBAY_MUX(0X3, "DEBUG_M3"), - THUNDERBAY_MUX(0X4, "GPIO_M4")), - THUNDERBAY_PIN_DESC(48, "GPIO48", - THUNDERBAY_MUX(0X0, "ETHER1_M0"), - THUNDERBAY_MUX(0X1, "TPIU_DATA_M1"), - THUNDERBAY_MUX(0X2, "TPIU_DATA_M2"), - THUNDERBAY_MUX(0X3, "DEBUG_M3"), - THUNDERBAY_MUX(0X4, "GPIO_M4")), - THUNDERBAY_PIN_DESC(49, "GPIO49", - THUNDERBAY_MUX(0X0, "ETHER1_M0"), - THUNDERBAY_MUX(0X1, "TPIU_DATA_M1"), - THUNDERBAY_MUX(0X2, "TPIU_DATA_M2"), - THUNDERBAY_MUX(0X3, "DEBUG_M3"), - THUNDERBAY_MUX(0X4, "GPIO_M4")), - THUNDERBAY_PIN_DESC(50, "GPIO50", - THUNDERBAY_MUX(0X0, "ETHER1_M0"), - THUNDERBAY_MUX(0X1, "TPIU_DATA_M1"), - THUNDERBAY_MUX(0X2, "TPIU_DATA_M2"), - THUNDERBAY_MUX(0X3, "DIG_VIEW_0"), - THUNDERBAY_MUX(0X4, "GPIO_M4")), - THUNDERBAY_PIN_DESC(51, "GPIO51", - THUNDERBAY_MUX(0X0, "ETHER1_M0"), - THUNDERBAY_MUX(0X1, "TPIU_DATA_M1"), - THUNDERBAY_MUX(0X2, "TPIU_DATA_M2"), - THUNDERBAY_MUX(0X3, "DIG_VIEW_1"), - THUNDERBAY_MUX(0X4, "GPIO_M4")), - THUNDERBAY_PIN_DESC(52, "GPIO52", - THUNDERBAY_MUX(0X0, "ETHER1_M0"), - THUNDERBAY_MUX(0X1, "TPIU_DATA_M1"), - THUNDERBAY_MUX(0X2, "TPIU_DATA_M2"), - THUNDERBAY_MUX(0X3, "CPR_IO_OUT_CLK_0"), - THUNDERBAY_MUX(0X4, "GPIO_M4")), - THUNDERBAY_PIN_DESC(53, "GPIO53", - THUNDERBAY_MUX(0X0, "ETHER1_M0"), - THUNDERBAY_MUX(0X1, "TPIU_DATA_M1"), - THUNDERBAY_MUX(0X2, "TPIU_DATA_M2"), - THUNDERBAY_MUX(0X3, "CPR_IO_OUT_CLK_1"), - THUNDERBAY_MUX(0X4, "GPIO_M4")), - THUNDERBAY_PIN_DESC(54, "GPIO54", - THUNDERBAY_MUX(0X0, "ETHER1_M0"), - THUNDERBAY_MUX(0X1, "TPIU_DATA_M1"), - THUNDERBAY_MUX(0X2, "TPIU_DATA_M2"), - THUNDERBAY_MUX(0X3, "CPR_IO_OUT_CLK_2"), - THUNDERBAY_MUX(0X4, "GPIO_M4")), - THUNDERBAY_PIN_DESC(55, "GPIO55", - THUNDERBAY_MUX(0X0, "ETHER1_M0"), - THUNDERBAY_MUX(0X1, "TPIU_DATA_M1"), - THUNDERBAY_MUX(0X2, "TPIU_DATA_M2"), - THUNDERBAY_MUX(0X3, "CPR_IO_OUT_CLK_3"), - THUNDERBAY_MUX(0X4, "GPIO_M4")), - THUNDERBAY_PIN_DESC(56, "GPIO56", - THUNDERBAY_MUX(0X0, "ETHER1_M0"), - THUNDERBAY_MUX(0X1, "TPIU_DATA_M1"), - THUNDERBAY_MUX(0X2, "TPIU_DATA_M2"), - THUNDERBAY_MUX(0X3, "POWER_INTERRUPT_ICCMAX_VDDD_M3"), - THUNDERBAY_MUX(0X4, "GPIO_M4")), - THUNDERBAY_PIN_DESC(57, "GPIO57", - THUNDERBAY_MUX(0X0, "POWER_INTERRUPT_ICCMAX_VPU_M0"), - THUNDERBAY_MUX(0X1, "TPIU_DATA_M1"), - THUNDERBAY_MUX(0X2, "TPIU_DATA_M2"), - THUNDERBAY_MUX(0X3, "EMPTY_M3"), - THUNDERBAY_MUX(0X4, "GPIO_M4")), - THUNDERBAY_PIN_DESC(58, "GPIO58", - THUNDERBAY_MUX(0X0, "THERMTRIP_M0"), - THUNDERBAY_MUX(0X1, "EMPTY_M1"), - THUNDERBAY_MUX(0X2, "EMPTY_M2"), - THUNDERBAY_MUX(0X3, "EMPTY_M3"), - THUNDERBAY_MUX(0X4, "GPIO_M4")), - THUNDERBAY_PIN_DESC(59, "GPIO59", - THUNDERBAY_MUX(0X0, "THERMTRIP_M0"), - THUNDERBAY_MUX(0X1, "EMPTY_M1"), - THUNDERBAY_MUX(0X2, "EMPTY_M2"), - THUNDERBAY_MUX(0X3, "EMPTY_M3"), - THUNDERBAY_MUX(0X4, "GPIO_M4")), - THUNDERBAY_PIN_DESC(60, "GPIO60", - THUNDERBAY_MUX(0X0, "SMBUS_M0"), - THUNDERBAY_MUX(0X1, "EMPTY_M1"), - THUNDERBAY_MUX(0X2, "EMPTY_M2"), - THUNDERBAY_MUX(0X3, "EMPTY_M3"), - THUNDERBAY_MUX(0X4, "GPIO_M4")), - THUNDERBAY_PIN_DESC(61, "GPIO61", - THUNDERBAY_MUX(0X0, "SMBUS_M0"), - THUNDERBAY_MUX(0X1, "EMPTY_M1"), - THUNDERBAY_MUX(0X2, "EMPTY_M2"), - THUNDERBAY_MUX(0X3, "POWER_INTERRUPT_ICCMAX_VDDD_M3"), - THUNDERBAY_MUX(0X4, "GPIO_M4")), - THUNDERBAY_PIN_DESC(62, "GPIO62", - THUNDERBAY_MUX(0X0, "PLATFORM_RESET_M0"), - THUNDERBAY_MUX(0X1, "EMPTY_M1"), - THUNDERBAY_MUX(0X2, "EMPTY_M2"), - THUNDERBAY_MUX(0X3, "EMPTY_M3"), - THUNDERBAY_MUX(0X4, "GPIO_M4")), - THUNDERBAY_PIN_DESC(63, "GPIO63", - THUNDERBAY_MUX(0X0, "PLATFORM_RESET_M0"), - THUNDERBAY_MUX(0X1, "EMPTY_M1"), - THUNDERBAY_MUX(0X2, "EMPTY_M2"), - THUNDERBAY_MUX(0X3, "EMPTY_M3"), - THUNDERBAY_MUX(0X4, "GPIO_M4")), - THUNDERBAY_PIN_DESC(64, "GPIO64", - THUNDERBAY_MUX(0X0, "PLATFORM_SHUTDOWN_M0"), - THUNDERBAY_MUX(0X1, "EMPTY_M1"), - THUNDERBAY_MUX(0X2, "EMPTY_M2"), - THUNDERBAY_MUX(0X3, "EMPTY_M3"), - THUNDERBAY_MUX(0X4, "GPIO_M4")), - THUNDERBAY_PIN_DESC(65, "GPIO65", - THUNDERBAY_MUX(0X0, "PLATFORM_SHUTDOWN_M0"), - THUNDERBAY_MUX(0X1, "EMPTY_M1"), - THUNDERBAY_MUX(0X2, "EMPTY_M2"), - THUNDERBAY_MUX(0X3, "EMPTY_M3"), - THUNDERBAY_MUX(0X4, "GPIO_M4")), - THUNDERBAY_PIN_DESC(66, "GPIO66", - THUNDERBAY_MUX(0X0, "POWER_INTERRUPT_ICCMAX_MEDIA_M0"), - THUNDERBAY_MUX(0X1, "EMPTY_M1"), - THUNDERBAY_MUX(0X2, "EMPTY_M2"), - THUNDERBAY_MUX(0X3, "EMPTY_M3"), - THUNDERBAY_MUX(0X4, "GPIO_M4")), -}; - -static const struct thunderbay_pin_soc thunderbay_data = { - .pins = thunderbay_pins, - .npins = ARRAY_SIZE(thunderbay_pins), -}; - -static u32 thb_gpio_read_reg(struct gpio_chip *chip, unsigned int pinnr) -{ - struct thunderbay_pinctrl *tpc = gpiochip_get_data(chip); - - return readl(tpc->base0 + THB_GPIO_REG_OFFSET(pinnr)); -} - -static u32 thb_gpio_write_reg(struct gpio_chip *chip, unsigned int pinnr, u32 value) -{ - struct thunderbay_pinctrl *tpc = gpiochip_get_data(chip); - - writel(value, (tpc->base0 + THB_GPIO_REG_OFFSET(pinnr))); - return 0; -} - -static int thb_read_gpio_data(struct gpio_chip *chip, unsigned int offset, unsigned int pad_dir) -{ - int data_offset; - u32 data_reg; - - /* as per GPIO Spec = pad_dir 0:input, 1:output */ - data_offset = 0x2000u + (offset / 32); - if (!pad_dir) - data_offset += 4; - data_reg = thb_gpio_read_reg(chip, data_offset); - - return data_reg & BIT(offset % 32); -} - -static int thb_write_gpio_data(struct gpio_chip *chip, unsigned int offset, unsigned int value) -{ - int data_offset; - u32 data_reg; - - data_offset = 0x2000u + (offset / 32); - - data_reg = thb_gpio_read_reg(chip, data_offset); - - if (value > 0) - data_reg |= BIT(offset % 32); - else - data_reg &= ~BIT(offset % 32); - - return thb_gpio_write_reg(chip, data_offset, data_reg); -} - -static int thunderbay_gpio_get_direction(struct gpio_chip *chip, unsigned int offset) -{ - u32 reg = thb_gpio_read_reg(chip, offset); - - /* Return direction only if configured as GPIO else negative error */ - if (reg & THB_GPIO_PORT_SELECT_MASK) - return !(reg & THB_GPIO_PAD_DIRECTION_MASK); - return -EINVAL; -} - -static int thunderbay_gpio_set_direction_input(struct gpio_chip *chip, unsigned int offset) -{ - u32 reg = thb_gpio_read_reg(chip, offset); - - /* set pin as input only if it is GPIO else error */ - if (reg & THB_GPIO_PORT_SELECT_MASK) { - reg &= (~THB_GPIO_PAD_DIRECTION_MASK); - thb_gpio_write_reg(chip, offset, reg); - return 0; - } - return -EINVAL; -} - -static void thunderbay_gpio_set_value(struct gpio_chip *chip, unsigned int offset, int value) -{ - u32 reg = thb_gpio_read_reg(chip, offset); - - /* update pin value only if it is GPIO-output else error */ - if ((reg & THB_GPIO_PORT_SELECT_MASK) && (reg & THB_GPIO_PAD_DIRECTION_MASK)) - thb_write_gpio_data(chip, offset, value); -} - -static int thunderbay_gpio_set_direction_output(struct gpio_chip *chip, - unsigned int offset, int value) -{ - u32 reg = thb_gpio_read_reg(chip, offset); - - /* set pin as output only if it is GPIO else error */ - if (reg & THB_GPIO_PORT_SELECT_MASK) { - reg |= THB_GPIO_PAD_DIRECTION_MASK; - thb_gpio_write_reg(chip, offset, reg); - thunderbay_gpio_set_value(chip, offset, value); - return 0; - } - return -EINVAL; -} - -static int thunderbay_gpio_get_value(struct gpio_chip *chip, unsigned int offset) -{ - u32 reg = thb_gpio_read_reg(chip, offset); - int gpio_dir = 0; - - /* Read pin value only if it is GPIO else error */ - if (reg & THB_GPIO_PORT_SELECT_MASK) { - /* 0=in, 1=out */ - gpio_dir = (reg & THB_GPIO_PAD_DIRECTION_MASK) > 0; - - /* Returns negative value when pin is configured as PORT */ - return thb_read_gpio_data(chip, offset, gpio_dir); - } - return -EINVAL; -} - -static int thunderbay_gpiochip_probe(struct thunderbay_pinctrl *tpc) -{ - struct gpio_chip *chip = &tpc->chip; - int ret; - - chip->label = dev_name(tpc->dev); - chip->parent = tpc->dev; - chip->request = gpiochip_generic_request; - chip->free = gpiochip_generic_free; - chip->get_direction = thunderbay_gpio_get_direction; - chip->direction_input = thunderbay_gpio_set_direction_input; - chip->direction_output = thunderbay_gpio_set_direction_output; - chip->get = thunderbay_gpio_get_value; - chip->set = thunderbay_gpio_set_value; - chip->set_config = gpiochip_generic_config; - /* identifies the first GPIO number handled by this chip; or, - * if negative during registration, requests dynamic ID allocation. - * Please pass -1 as base to let gpiolib select the chip base in all possible cases. - * We want to get rid of the static GPIO number space in the long run. - */ - chip->base = -1; - /* Number of GPIOs handled by this controller; the last GPIO handled is (base + ngpio - 1)*/ - chip->ngpio = THB_MAX_NPINS_SUPPORTED; - - /* Register/add Thunder Bay GPIO chip with Linux framework */ - ret = gpiochip_add_data(chip, tpc); - if (ret) - dev_err(tpc->dev, "Failed to add gpiochip\n"); - return ret; -} - -static int thunderbay_request_gpio(struct pinctrl_dev *pctldev, - struct pinctrl_gpio_range *range, - unsigned int pin) -{ - struct thunderbay_pinctrl *tpc = pinctrl_dev_get_drvdata(pctldev); - struct gpio_chip *chip = &tpc->chip; - u32 reg = 0; - - if (thb_pinx_status[pin] == 0u) { - reg = thb_gpio_read_reg(chip, pin); - /* Updates PIN configuration as GPIO and sets GPIO to MODE-4*/ - reg |= (THB_GPIO_PORT_SELECT_MASK | THB_GPIO_PINMUX_MODE_4); - thb_gpio_write_reg(chip, pin, reg); - - /* update pin status as busy */ - thb_pinx_status[pin] = 1u; - - return 0; - } - return -EINVAL; -} - -static void thunderbay_free_gpio(struct pinctrl_dev *pctldev, - struct pinctrl_gpio_range *range, - unsigned int pin) -{ - struct thunderbay_pinctrl *tpc = pinctrl_dev_get_drvdata(pctldev); - struct gpio_chip *chip = &tpc->chip; - u32 reg = 0; - - if (thb_pinx_status[pin] == 1u) { - reg = thb_gpio_read_reg(chip, pin); - - /* Updates PIN configuration from GPIO to PORT */ - reg &= (~THB_GPIO_PORT_SELECT_MASK); - - /* Change Port/gpio mode to default mode-0 */ - reg &= (~THB_GPIO_PINMUX_MODE_4); - - thb_gpio_write_reg(chip, pin, reg); - - /* update pin status as free */ - thb_pinx_status[pin] = 0u; - } -} - -static int thb_pinctrl_set_mux(struct pinctrl_dev *pctldev, - unsigned int func_select, unsigned int group_select) -{ - struct thunderbay_pinctrl *tpc = pinctrl_dev_get_drvdata(pctldev); - struct gpio_chip *chip = &tpc->chip; - struct function_desc *function; - unsigned int i, pin_mode; - struct group_desc *group; - int ret = -EINVAL; - u32 reg = 0u; - - group = pinctrl_generic_get_group(pctldev, group_select); - if (!group) - return -EINVAL; - - function = pinmux_generic_get_function(pctldev, func_select); - if (!function) - return -EINVAL; - - pin_mode = *(unsigned int *)(function->data); - - /* Change modes for pins in the selected group */ - for (i = 0; i < group->num_pins; i++) { - reg = thb_gpio_read_reg(chip, group->pins[i]); - - switch (pin_mode) { - case 0u: - reg |= THB_GPIO_PINMUX_MODE_0; - break; - case 1u: - reg |= THB_GPIO_PINMUX_MODE_1; - break; - case 2u: - reg |= THB_GPIO_PINMUX_MODE_2; - break; - case 3u: - reg |= THB_GPIO_PINMUX_MODE_3; - break; - case 4u: - reg |= THB_GPIO_PINMUX_MODE_4; - break; - default: - return -EINVAL; - } - - ret = thb_gpio_write_reg(chip, group->pins[i], reg); - if (~ret) { - /* update pin status as busy */ - thb_pinx_status[group->pins[i]] = 1u; - } - } - return ret; -} - -static int thunderbay_build_groups(struct thunderbay_pinctrl *tpc) -{ - struct group_desc *thunderbay_groups; - int i; - - tpc->ngroups = tpc->soc->npins; - thunderbay_groups = devm_kcalloc(tpc->dev, tpc->ngroups, - sizeof(*thunderbay_groups), GFP_KERNEL); - if (!thunderbay_groups) - return -ENOMEM; - - for (i = 0; i < tpc->ngroups; i++) { - struct group_desc *group = thunderbay_groups + i; - const struct pinctrl_pin_desc *pin_info = thunderbay_pins + i; - - group->name = pin_info->name; - group->pins = (int *)&pin_info->number; - pinctrl_generic_add_group(tpc->pctrl, group->name, - group->pins, 1, NULL); - } - return 0; -} - -static int thunderbay_add_functions(struct thunderbay_pinctrl *tpc, struct function_desc *funcs) -{ - int i; - - /* Assign the groups for each function */ - for (i = 0; i < tpc->nfuncs; i++) { - struct function_desc *func = &funcs[i]; - const char **group_names; - unsigned int grp_idx = 0; - int j; - - group_names = devm_kcalloc(tpc->dev, func->num_group_names, - sizeof(*group_names), GFP_KERNEL); - if (!group_names) - return -ENOMEM; - - for (j = 0; j < tpc->soc->npins; j++) { - const struct pinctrl_pin_desc *pin_info = &thunderbay_pins[j]; - struct thunderbay_mux_desc *pin_mux; - - for (pin_mux = pin_info->drv_data; pin_mux->name; pin_mux++) { - if (!strcmp(pin_mux->name, func->name)) - group_names[grp_idx++] = pin_info->name; - } - } - - func->group_names = group_names; - } - - /* Add all functions */ - for (i = 0; i < tpc->nfuncs; i++) { - pinmux_generic_add_function(tpc->pctrl, - funcs[i].name, - funcs[i].group_names, - funcs[i].num_group_names, - funcs[i].data); - } - - return 0; -} - -static int thunderbay_build_functions(struct thunderbay_pinctrl *tpc) -{ - struct function_desc *thunderbay_funcs; - void *ptr; - int pin; - int ret; - - /* - * Allocate maximum possible number of functions. Assume every pin - * being part of 8 (hw maximum) globally unique muxes. - */ - tpc->nfuncs = 0; - thunderbay_funcs = kcalloc(tpc->soc->npins * 8, - sizeof(*thunderbay_funcs), GFP_KERNEL); - if (!thunderbay_funcs) - return -ENOMEM; - - /* Setup 1 function for each unique mux */ - for (pin = 0; pin < tpc->soc->npins; pin++) { - const struct pinctrl_pin_desc *pin_info = thunderbay_pins + pin; - struct thunderbay_mux_desc *pin_mux; - - for (pin_mux = pin_info->drv_data; pin_mux->name; pin_mux++) { - struct function_desc *func; - - /* Check if we already have function for this mux */ - for (func = thunderbay_funcs; func->name; func++) { - if (!strcmp(pin_mux->name, func->name)) { - func->num_group_names++; - break; - } - } - - if (!func->name) { - func->name = pin_mux->name; - func->num_group_names = 1; - func->data = (int *)&pin_mux->mode; - tpc->nfuncs++; - } - } - } - - /* Reallocate memory based on actual number of functions */ - ptr = krealloc(thunderbay_funcs, - tpc->nfuncs * sizeof(*thunderbay_funcs), GFP_KERNEL); - if (!ptr) - return -ENOMEM; - - thunderbay_funcs = ptr; - ret = thunderbay_add_functions(tpc, thunderbay_funcs); - - kfree(thunderbay_funcs); - return ret; -} - -static int thunderbay_pinconf_set_tristate(struct thunderbay_pinctrl *tpc, - unsigned int pin, u32 config) -{ - struct gpio_chip *chip = &tpc->chip; - u32 reg; - - reg = thb_gpio_read_reg(chip, pin); - if (config > 0) - reg |= THB_GPIO_ENAQ_MASK; - else - reg &= ~THB_GPIO_ENAQ_MASK; - - return thb_gpio_write_reg(chip, pin, reg); -} - -static int thunderbay_pinconf_get_tristate(struct thunderbay_pinctrl *tpc, - unsigned int pin, u32 *config) -{ - struct gpio_chip *chip = &tpc->chip; - u32 reg; - - reg = thb_gpio_read_reg(chip, pin); - *config = (reg & THB_GPIO_ENAQ_MASK) > 0; - - return 0; -} - -static int thunderbay_pinconf_set_pulldown(struct thunderbay_pinctrl *tpc, - unsigned int pin, u32 config) -{ - struct gpio_chip *chip = &tpc->chip; - u32 reg; - - reg = thb_gpio_read_reg(chip, pin); - if (config > 0) - reg |= THB_GPIO_PULL_DOWN_MASK; - else - reg &= ~THB_GPIO_PULL_DOWN_MASK; - - return thb_gpio_write_reg(chip, pin, reg); -} - -static int thunderbay_pinconf_get_pulldown(struct thunderbay_pinctrl *tpc, - unsigned int pin, u32 *config) -{ - struct gpio_chip *chip = &tpc->chip; - u32 reg = 0; - - reg = thb_gpio_read_reg(chip, pin); - *config = ((reg & THB_GPIO_PULL_DOWN_MASK) > 0) ? 1 : 0; - - return 0; -} - -static int thunderbay_pinconf_set_pullup(struct thunderbay_pinctrl *tpc, - unsigned int pin, u32 config) -{ - struct gpio_chip *chip = &tpc->chip; - u32 reg; - - reg = thb_gpio_read_reg(chip, pin); - if (config > 0) - reg &= ~THB_GPIO_PULL_UP_MASK; - else - reg |= THB_GPIO_PULL_UP_MASK; - - return thb_gpio_write_reg(chip, pin, reg); -} - -static int thunderbay_pinconf_get_pullup(struct thunderbay_pinctrl *tpc, - unsigned int pin, u32 *config) -{ - struct gpio_chip *chip = &tpc->chip; - u32 reg; - - reg = thb_gpio_read_reg(chip, pin); - *config = ((reg & THB_GPIO_PULL_UP_MASK) == 0) ? 1 : 0; - - return 0; -} - -static int thunderbay_pinconf_set_opendrain(struct thunderbay_pinctrl *tpc, - unsigned int pin, u32 config) -{ - struct gpio_chip *chip = &tpc->chip; - u32 reg; - - reg = thb_gpio_read_reg(chip, pin); - if (config > 0) - reg &= ~THB_GPIO_PULL_ENABLE_MASK; - else - reg |= THB_GPIO_PULL_ENABLE_MASK; - - return thb_gpio_write_reg(chip, pin, reg); -} - -static int thunderbay_pinconf_get_opendrain(struct thunderbay_pinctrl *tpc, - unsigned int pin, u32 *config) -{ - struct gpio_chip *chip = &tpc->chip; - u32 reg; - - reg = thb_gpio_read_reg(chip, pin); - *config = ((reg & THB_GPIO_PULL_ENABLE_MASK) == 0) ? 1 : 0; - - return 0; -} - -static int thunderbay_pinconf_set_pushpull(struct thunderbay_pinctrl *tpc, - unsigned int pin, u32 config) -{ - struct gpio_chip *chip = &tpc->chip; - u32 reg; - - reg = thb_gpio_read_reg(chip, pin); - if (config > 0) - reg |= THB_GPIO_PULL_ENABLE_MASK; - else - reg &= ~THB_GPIO_PULL_ENABLE_MASK; - - return thb_gpio_write_reg(chip, pin, reg); -} - -static int thunderbay_pinconf_get_pushpull(struct thunderbay_pinctrl *tpc, - unsigned int pin, u32 *config) -{ - struct gpio_chip *chip = &tpc->chip; - u32 reg; - - reg = thb_gpio_read_reg(chip, pin); - *config = ((reg & THB_GPIO_PULL_ENABLE_MASK) > 0) ? 1 : 0; - - return 0; -} - -static int thunderbay_pinconf_set_drivestrength(struct thunderbay_pinctrl *tpc, - unsigned int pin, u32 config) -{ - struct gpio_chip *chip = &tpc->chip; - u32 reg; - - reg = thb_gpio_read_reg(chip, pin); - - /* Drive Strength: 0x0 to 0xF */ - if (config <= 0xF) { - reg = (reg | config); - return thb_gpio_write_reg(chip, pin, reg); - } - - return -EINVAL; -} - -static int thunderbay_pinconf_get_drivestrength(struct thunderbay_pinctrl *tpc, - unsigned int pin, u32 *config) -{ - struct gpio_chip *chip = &tpc->chip; - u32 reg; - - reg = thb_gpio_read_reg(chip, pin); - reg = (reg & THB_GPIO_DRIVE_STRENGTH_MASK) >> 16; - *config = (reg > 0) ? reg : 0; - - return 0; -} - -static int thunderbay_pinconf_set_schmitt(struct thunderbay_pinctrl *tpc, - unsigned int pin, u32 config) -{ - struct gpio_chip *chip = &tpc->chip; - u32 reg; - - reg = thb_gpio_read_reg(chip, pin); - if (config > 0) - reg |= THB_GPIO_SCHMITT_TRIGGER_MASK; - else - reg &= ~THB_GPIO_SCHMITT_TRIGGER_MASK; - - return thb_gpio_write_reg(chip, pin, reg); -} - -static int thunderbay_pinconf_get_schmitt(struct thunderbay_pinctrl *tpc, - unsigned int pin, u32 *config) -{ - struct gpio_chip *chip = &tpc->chip; - u32 reg; - - reg = thb_gpio_read_reg(chip, pin); - *config = ((reg & THB_GPIO_SCHMITT_TRIGGER_MASK) > 0) ? 1 : 0; - - return 0; -} - -static int thunderbay_pinconf_set_slew_rate(struct thunderbay_pinctrl *tpc, - unsigned int pin, u32 config) -{ - struct gpio_chip *chip = &tpc->chip; - u32 reg = 0; - - reg = thb_gpio_read_reg(chip, pin); - if (config > 0) - reg |= THB_GPIO_SLEW_RATE_MASK; - else - reg &= ~THB_GPIO_SLEW_RATE_MASK; - - return thb_gpio_write_reg(chip, pin, reg); -} - -static int thunderbay_pinconf_get_slew_rate(struct thunderbay_pinctrl *tpc, - unsigned int pin, u32 *config) -{ - struct gpio_chip *chip = &tpc->chip; - u32 reg; - - reg = thb_gpio_read_reg(chip, pin); - *config = ((reg & THB_GPIO_SLEW_RATE_MASK) > 0) ? 1 : 0; - - return 0; -} - -static int thunderbay_pinconf_get(struct pinctrl_dev *pctldev, unsigned int pin, - unsigned long *config) -{ - struct thunderbay_pinctrl *tpc = pinctrl_dev_get_drvdata(pctldev); - enum pin_config_param param = pinconf_to_config_param(*config); - u32 arg; - int ret; - - switch (param) { - case PIN_CONFIG_BIAS_HIGH_IMPEDANCE: - ret = thunderbay_pinconf_get_tristate(tpc, pin, &arg); - break; - - case PIN_CONFIG_BIAS_PULL_DOWN: - ret = thunderbay_pinconf_get_pulldown(tpc, pin, &arg); - break; - - case PIN_CONFIG_BIAS_PULL_UP: - ret = thunderbay_pinconf_get_pullup(tpc, pin, &arg); - break; - - case PIN_CONFIG_DRIVE_OPEN_DRAIN: - ret = thunderbay_pinconf_get_opendrain(tpc, pin, &arg); - break; - - case PIN_CONFIG_DRIVE_PUSH_PULL: - ret = thunderbay_pinconf_get_pushpull(tpc, pin, &arg); - break; - - case PIN_CONFIG_DRIVE_STRENGTH: - ret = thunderbay_pinconf_get_drivestrength(tpc, pin, &arg); - break; - - case PIN_CONFIG_INPUT_SCHMITT_ENABLE: - ret = thunderbay_pinconf_get_schmitt(tpc, pin, &arg); - break; - - case PIN_CONFIG_SLEW_RATE: - ret = thunderbay_pinconf_get_slew_rate(tpc, pin, &arg); - break; - - default: - return -ENOTSUPP; - } - - *config = pinconf_to_config_packed(param, arg); - - return ret; -} - -static int thunderbay_pinconf_set(struct pinctrl_dev *pctldev, unsigned int pin, - unsigned long *configs, unsigned int num_configs) -{ - struct thunderbay_pinctrl *tpc = pinctrl_dev_get_drvdata(pctldev); - enum pin_config_param param; - unsigned int pinconf; - int ret = 0; - u32 arg; - - for (pinconf = 0; pinconf < num_configs; pinconf++) { - param = pinconf_to_config_param(configs[pinconf]); - arg = pinconf_to_config_argument(configs[pinconf]); - - switch (param) { - case PIN_CONFIG_BIAS_HIGH_IMPEDANCE: - ret = thunderbay_pinconf_set_tristate(tpc, pin, arg); - break; - - case PIN_CONFIG_BIAS_PULL_DOWN: - ret = thunderbay_pinconf_set_pulldown(tpc, pin, arg); - break; - - case PIN_CONFIG_BIAS_PULL_UP: - ret = thunderbay_pinconf_set_pullup(tpc, pin, arg); - break; - - case PIN_CONFIG_DRIVE_OPEN_DRAIN: - ret = thunderbay_pinconf_set_opendrain(tpc, pin, arg); - break; - - case PIN_CONFIG_DRIVE_PUSH_PULL: - ret = thunderbay_pinconf_set_pushpull(tpc, pin, arg); - break; - - case PIN_CONFIG_DRIVE_STRENGTH: - ret = thunderbay_pinconf_set_drivestrength(tpc, pin, arg); - break; - - case PIN_CONFIG_INPUT_SCHMITT_ENABLE: - ret = thunderbay_pinconf_set_schmitt(tpc, pin, arg); - break; - - case PIN_CONFIG_SLEW_RATE: - ret = thunderbay_pinconf_set_slew_rate(tpc, pin, arg); - break; - - default: - return -ENOTSUPP; - } - } - return ret; -} - -static const struct pinctrl_ops thunderbay_pctlops = { - .get_groups_count = pinctrl_generic_get_group_count, - .get_group_name = pinctrl_generic_get_group_name, - .get_group_pins = pinctrl_generic_get_group_pins, - .dt_node_to_map = pinconf_generic_dt_node_to_map_all, - .dt_free_map = pinconf_generic_dt_free_map, -}; - -static const struct pinmux_ops thunderbay_pmxops = { - .get_functions_count = pinmux_generic_get_function_count, - .get_function_name = pinmux_generic_get_function_name, - .get_function_groups = pinmux_generic_get_function_groups, - .set_mux = thb_pinctrl_set_mux, - .gpio_request_enable = thunderbay_request_gpio, - .gpio_disable_free = thunderbay_free_gpio, -}; - -static const struct pinconf_ops thunderbay_confops = { - .is_generic = true, - .pin_config_get = thunderbay_pinconf_get, - .pin_config_set = thunderbay_pinconf_set, -}; - -static struct pinctrl_desc thunderbay_pinctrl_desc = { - .name = "thunderbay-pinmux", - .pctlops = &thunderbay_pctlops, - .pmxops = &thunderbay_pmxops, - .confops = &thunderbay_confops, - .owner = THIS_MODULE, -}; - -static const struct of_device_id thunderbay_pinctrl_match[] = { - { - .compatible = "intel,thunderbay-pinctrl", - .data = &thunderbay_data - }, - {} -}; - -static int thunderbay_pinctrl_probe(struct platform_device *pdev) -{ - const struct of_device_id *of_id; - struct device *dev = &pdev->dev; - struct thunderbay_pinctrl *tpc; - int ret; - - of_id = of_match_node(thunderbay_pinctrl_match, pdev->dev.of_node); - if (!of_id) - return -ENODEV; - - tpc = devm_kzalloc(dev, sizeof(*tpc), GFP_KERNEL); - if (!tpc) - return -ENOMEM; - - tpc->dev = dev; - tpc->soc = of_id->data; - - tpc->base0 = devm_platform_ioremap_resource(pdev, 0); - if (IS_ERR(tpc->base0)) - return PTR_ERR(tpc->base0); - - thunderbay_pinctrl_desc.pins = tpc->soc->pins; - thunderbay_pinctrl_desc.npins = tpc->soc->npins; - - /* Register pinctrl */ - tpc->pctrl = devm_pinctrl_register(dev, &thunderbay_pinctrl_desc, tpc); - if (IS_ERR(tpc->pctrl)) - return PTR_ERR(tpc->pctrl); - - /* Setup pinmux groups */ - ret = thunderbay_build_groups(tpc); - if (ret) - return ret; - - /* Setup pinmux functions */ - ret = thunderbay_build_functions(tpc); - if (ret) - return ret; - - /* Setup GPIO */ - ret = thunderbay_gpiochip_probe(tpc); - if (ret < 0) - return ret; - - platform_set_drvdata(pdev, tpc); - - return 0; -} - -static struct platform_driver thunderbay_pinctrl_driver = { - .driver = { - .name = "thunderbay-pinctrl", - .of_match_table = thunderbay_pinctrl_match, - }, - .probe = thunderbay_pinctrl_probe, -}; - -builtin_platform_driver(thunderbay_pinctrl_driver); - -MODULE_AUTHOR("Lakshmi Sowjanya D <lakshmi.sowjanya.d@intel.com>"); -MODULE_AUTHOR("Kiran Kumar S <kiran.kumar1.s@intel.com>"); -MODULE_DESCRIPTION("Intel Thunder Bay Pinctrl/GPIO Driver"); -MODULE_LICENSE("GPL v2"); |