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OpenCloudOS-Kernel
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Merge branch 'ib-ingenic' into devel

This commit is contained in:
Linus Walleij 2018-08-29 14:10:34 +02:00
parent 94f4e54cec 28d6eeb4f0
commit 5624bf9635
7 changed files with 487 additions and 470 deletions
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46
Documentation/devicetree/bindings/gpio/ingenic,gpio.txt
View File

@ -1,46 +0,0 @@
Ingenic jz47xx GPIO controller
That the Ingenic GPIO driver node must be a sub-node of the Ingenic pinctrl
driver node.
Required properties:
--------------------
- compatible: Must contain one of:
- "ingenic,jz4740-gpio"
- "ingenic,jz4770-gpio"
- "ingenic,jz4780-gpio"
- reg: The GPIO bank number.
- interrupt-controller: Marks the device node as an interrupt controller.
- interrupts: Interrupt specifier for the controllers interrupt.
- #interrupt-cells: Should be 2. Refer to
../interrupt-controller/interrupts.txt for more details.
- gpio-controller: Marks the device node as a GPIO controller.
- #gpio-cells: Should be 2. The first cell is the GPIO number and the second
cell specifies GPIO flags, as defined in <dt-bindings/gpio/gpio.h>. Only the
GPIO_ACTIVE_HIGH and GPIO_ACTIVE_LOW flags are supported.
- gpio-ranges: Range of pins managed by the GPIO controller. Refer to
'gpio.txt' in this directory for more details.
Example:
--------
&pinctrl {
#address-cells = <1>;
#size-cells = <0>;
gpa: gpio@0 {
compatible = "ingenic,jz4740-gpio";
reg = <0>;
gpio-controller;
gpio-ranges = <&pinctrl 0 0 32>;
#gpio-cells = <2>;
interrupt-controller;
#interrupt-cells = <2>;
interrupt-parent = <&intc>;
interrupts = <28>;
};
};

39
Documentation/devicetree/bindings/pinctrl/ingenic,pinctrl.txt
View File

@ -20,16 +20,30 @@ Required properties:
- compatible: One of:
- "ingenic,jz4740-pinctrl"
- "ingenic,jz4725b-pinctrl"
- "ingenic,jz4770-pinctrl"
- "ingenic,jz4780-pinctrl"
- reg: Address range of the pinctrl registers.
GPIO sub-nodes
--------------
Required properties for sub-nodes (GPIO chips):
-----------------------------------------------
The pinctrl node can have optional sub-nodes for the Ingenic GPIO driver;
please refer to ../gpio/ingenic,gpio.txt.
- compatible: Must contain one of:
- "ingenic,jz4740-gpio"
- "ingenic,jz4770-gpio"
- "ingenic,jz4780-gpio"
- reg: The GPIO bank number.
- interrupt-controller: Marks the device node as an interrupt controller.
- interrupts: Interrupt specifier for the controllers interrupt.
- #interrupt-cells: Should be 2. Refer to
../interrupt-controller/interrupts.txt for more details.
- gpio-controller: Marks the device node as a GPIO controller.
- #gpio-cells: Should be 2. The first cell is the GPIO number and the second
cell specifies GPIO flags, as defined in <dt-bindings/gpio/gpio.h>. Only the
GPIO_ACTIVE_HIGH and GPIO_ACTIVE_LOW flags are supported.
- gpio-ranges: Range of pins managed by the GPIO controller. Refer to
../gpio/gpio.txt for more details.
Example:
@ -38,4 +52,21 @@ Example:
pinctrl: pin-controller@10010000 {
compatible = "ingenic,jz4740-pinctrl";
reg = <0x10010000 0x400>;
#address-cells = <1>;
#size-cells = <0>;
gpa: gpio@0 {
compatible = "ingenic,jz4740-gpio";
reg = <0>;
gpio-controller;
gpio-ranges = <&pinctrl 0 0 32>;
#gpio-cells = <2>;
interrupt-controller;
#interrupt-cells = <2>;
interrupt-parent = <&intc>;
interrupts = <28>;
};
};

11
drivers/gpio/Kconfig
View File

@ -267,17 +267,6 @@ config GPIO_ICH
If unsure, say N.
config GPIO_INGENIC
tristate "Ingenic JZ47xx SoCs GPIO support"
depends on OF
depends on MACH_INGENIC || COMPILE_TEST
select GPIOLIB_IRQCHIP
help
Say yes here to support the GPIO functionality present on the
JZ4740 and JZ4780 SoCs from Ingenic.
If unsure, say N.
config GPIO_IOP
tristate "Intel IOP GPIO"
depends on ARCH_IOP32X || ARCH_IOP33X || COMPILE_TEST

1
drivers/gpio/Makefile
View File

@ -57,7 +57,6 @@ obj-$(CONFIG_GPIO_GRGPIO) += gpio-grgpio.o
obj-$(CONFIG_GPIO_HLWD) += gpio-hlwd.o
obj-$(CONFIG_HTC_EGPIO) += gpio-htc-egpio.o
obj-$(CONFIG_GPIO_ICH) += gpio-ich.o
obj-$(CONFIG_GPIO_INGENIC) += gpio-ingenic.o
obj-$(CONFIG_GPIO_IOP) += gpio-iop.o
obj-$(CONFIG_GPIO_IT87) += gpio-it87.o
obj-$(CONFIG_GPIO_JANZ_TTL) += gpio-janz-ttl.o

392
drivers/gpio/gpio-ingenic.c
View File

@ -1,392 +0,0 @@
/*
* Ingenic JZ47xx GPIO driver
*
* Copyright (c) 2017 Paul Cercueil <paul@crapouillou.net>
*
* License terms: GNU General Public License (GPL) version 2
*/
#include <linux/gpio/driver.h>
#include <linux/interrupt.h>
#include <linux/io.h>
#include <linux/module.h>
#include <linux/of_address.h>
#include <linux/of_device.h>
#include <linux/of_irq.h>
#include <linux/pinctrl/consumer.h>
#include <linux/regmap.h>
#define GPIO_PIN 0x00
#define GPIO_MSK 0x20
#define JZ4740_GPIO_DATA 0x10
#define JZ4740_GPIO_SELECT 0x50
#define JZ4740_GPIO_DIR 0x60
#define JZ4740_GPIO_TRIG 0x70
#define JZ4740_GPIO_FLAG 0x80
#define JZ4770_GPIO_INT 0x10
#define JZ4770_GPIO_PAT1 0x30
#define JZ4770_GPIO_PAT0 0x40
#define JZ4770_GPIO_FLAG 0x50
#define REG_SET(x) ((x) + 0x4)
#define REG_CLEAR(x) ((x) + 0x8)
enum jz_version {
ID_JZ4740,
ID_JZ4770,
ID_JZ4780,
};
struct ingenic_gpio_chip {
struct regmap *map;
struct gpio_chip gc;
struct irq_chip irq_chip;
unsigned int irq, reg_base;
enum jz_version version;
};
static u32 gpio_ingenic_read_reg(struct ingenic_gpio_chip *jzgc, u8 reg)
{
unsigned int val;
regmap_read(jzgc->map, jzgc->reg_base + reg, &val);
return (u32) val;
}
static void gpio_ingenic_set_bit(struct ingenic_gpio_chip *jzgc,
u8 reg, u8 offset, bool set)
{
if (set)
reg = REG_SET(reg);
else
reg = REG_CLEAR(reg);
regmap_write(jzgc->map, jzgc->reg_base + reg, BIT(offset));
}
static inline bool gpio_get_value(struct ingenic_gpio_chip *jzgc, u8 offset)
{
unsigned int val = gpio_ingenic_read_reg(jzgc, GPIO_PIN);
return !!(val & BIT(offset));
}
static void gpio_set_value(struct ingenic_gpio_chip *jzgc, u8 offset, int value)
{
if (jzgc->version >= ID_JZ4770)
gpio_ingenic_set_bit(jzgc, JZ4770_GPIO_PAT0, offset, !!value);
else
gpio_ingenic_set_bit(jzgc, JZ4740_GPIO_DATA, offset, !!value);
}
static void irq_set_type(struct ingenic_gpio_chip *jzgc,
u8 offset, unsigned int type)
{
u8 reg1, reg2;
if (jzgc->version >= ID_JZ4770) {
reg1 = JZ4770_GPIO_PAT1;
reg2 = JZ4770_GPIO_PAT0;
} else {
reg1 = JZ4740_GPIO_TRIG;
reg2 = JZ4740_GPIO_DIR;
}
switch (type) {
case IRQ_TYPE_EDGE_RISING:
gpio_ingenic_set_bit(jzgc, reg2, offset, true);
gpio_ingenic_set_bit(jzgc, reg1, offset, true);
break;
case IRQ_TYPE_EDGE_FALLING:
gpio_ingenic_set_bit(jzgc, reg2, offset, false);
gpio_ingenic_set_bit(jzgc, reg1, offset, true);
break;
case IRQ_TYPE_LEVEL_HIGH:
gpio_ingenic_set_bit(jzgc, reg2, offset, true);
gpio_ingenic_set_bit(jzgc, reg1, offset, false);
break;
case IRQ_TYPE_LEVEL_LOW:
default:
gpio_ingenic_set_bit(jzgc, reg2, offset, false);
gpio_ingenic_set_bit(jzgc, reg1, offset, false);
break;
}
}
static void ingenic_gpio_irq_mask(struct irq_data *irqd)
{
struct gpio_chip *gc = irq_data_get_irq_chip_data(irqd);
struct ingenic_gpio_chip *jzgc = gpiochip_get_data(gc);
gpio_ingenic_set_bit(jzgc, GPIO_MSK, irqd->hwirq, true);
}
static void ingenic_gpio_irq_unmask(struct irq_data *irqd)
{
struct gpio_chip *gc = irq_data_get_irq_chip_data(irqd);
struct ingenic_gpio_chip *jzgc = gpiochip_get_data(gc);
gpio_ingenic_set_bit(jzgc, GPIO_MSK, irqd->hwirq, false);
}
static void ingenic_gpio_irq_enable(struct irq_data *irqd)
{
struct gpio_chip *gc = irq_data_get_irq_chip_data(irqd);
struct ingenic_gpio_chip *jzgc = gpiochip_get_data(gc);
int irq = irqd->hwirq;
if (jzgc->version >= ID_JZ4770)
gpio_ingenic_set_bit(jzgc, JZ4770_GPIO_INT, irq, true);
else
gpio_ingenic_set_bit(jzgc, JZ4740_GPIO_SELECT, irq, true);
ingenic_gpio_irq_unmask(irqd);
}
static void ingenic_gpio_irq_disable(struct irq_data *irqd)
{
struct gpio_chip *gc = irq_data_get_irq_chip_data(irqd);
struct ingenic_gpio_chip *jzgc = gpiochip_get_data(gc);
int irq = irqd->hwirq;
ingenic_gpio_irq_mask(irqd);
if (jzgc->version >= ID_JZ4770)
gpio_ingenic_set_bit(jzgc, JZ4770_GPIO_INT, irq, false);
else
gpio_ingenic_set_bit(jzgc, JZ4740_GPIO_SELECT, irq, false);
}
static void ingenic_gpio_irq_ack(struct irq_data *irqd)
{
struct gpio_chip *gc = irq_data_get_irq_chip_data(irqd);
struct ingenic_gpio_chip *jzgc = gpiochip_get_data(gc);
int irq = irqd->hwirq;
bool high;
if (irqd_get_trigger_type(irqd) == IRQ_TYPE_EDGE_BOTH) {
/*
* Switch to an interrupt for the opposite edge to the one that
* triggered the interrupt being ACKed.
*/
high = gpio_get_value(jzgc, irq);
if (high)
irq_set_type(jzgc, irq, IRQ_TYPE_EDGE_FALLING);
else
irq_set_type(jzgc, irq, IRQ_TYPE_EDGE_RISING);
}
if (jzgc->version >= ID_JZ4770)
gpio_ingenic_set_bit(jzgc, JZ4770_GPIO_FLAG, irq, false);
else
gpio_ingenic_set_bit(jzgc, JZ4740_GPIO_DATA, irq, true);
}
static int ingenic_gpio_irq_set_type(struct irq_data *irqd, unsigned int type)
{
struct gpio_chip *gc = irq_data_get_irq_chip_data(irqd);
struct ingenic_gpio_chip *jzgc = gpiochip_get_data(gc);
switch (type) {
case IRQ_TYPE_EDGE_BOTH:
case IRQ_TYPE_EDGE_RISING:
case IRQ_TYPE_EDGE_FALLING:
irq_set_handler_locked(irqd, handle_edge_irq);
break;
case IRQ_TYPE_LEVEL_HIGH:
case IRQ_TYPE_LEVEL_LOW:
irq_set_handler_locked(irqd, handle_level_irq);
break;
default:
irq_set_handler_locked(irqd, handle_bad_irq);
}
if (type == IRQ_TYPE_EDGE_BOTH) {
/*
* The hardware does not support interrupts on both edges. The
* best we can do is to set up a single-edge interrupt and then
* switch to the opposing edge when ACKing the interrupt.
*/
bool high = gpio_get_value(jzgc, irqd->hwirq);
type = high ? IRQ_TYPE_EDGE_FALLING : IRQ_TYPE_EDGE_RISING;
}
irq_set_type(jzgc, irqd->hwirq, type);
return 0;
}
static int ingenic_gpio_irq_set_wake(struct irq_data *irqd, unsigned int on)
{
struct gpio_chip *gc = irq_data_get_irq_chip_data(irqd);
struct ingenic_gpio_chip *jzgc = gpiochip_get_data(gc);
return irq_set_irq_wake(jzgc->irq, on);
}
static void ingenic_gpio_irq_handler(struct irq_desc *desc)
{
struct gpio_chip *gc = irq_desc_get_handler_data(desc);
struct ingenic_gpio_chip *jzgc = gpiochip_get_data(gc);
struct irq_chip *irq_chip = irq_data_get_irq_chip(&desc->irq_data);
unsigned long flag, i;
chained_irq_enter(irq_chip, desc);
if (jzgc->version >= ID_JZ4770)
flag = gpio_ingenic_read_reg(jzgc, JZ4770_GPIO_FLAG);
else
flag = gpio_ingenic_read_reg(jzgc, JZ4740_GPIO_FLAG);
for_each_set_bit(i, &flag, 32)
generic_handle_irq(irq_linear_revmap(gc->irq.domain, i));
chained_irq_exit(irq_chip, desc);
}
static void ingenic_gpio_set(struct gpio_chip *gc,
unsigned int offset, int value)
{
struct ingenic_gpio_chip *jzgc = gpiochip_get_data(gc);
gpio_set_value(jzgc, offset, value);
}
static int ingenic_gpio_get(struct gpio_chip *gc, unsigned int offset)
{
struct ingenic_gpio_chip *jzgc = gpiochip_get_data(gc);
return (int) gpio_get_value(jzgc, offset);
}
static int ingenic_gpio_direction_input(struct gpio_chip *gc,
unsigned int offset)
{
return pinctrl_gpio_direction_input(gc->base + offset);
}
static int ingenic_gpio_direction_output(struct gpio_chip *gc,
unsigned int offset, int value)
{
ingenic_gpio_set(gc, offset, value);
return pinctrl_gpio_direction_output(gc->base + offset);
}
static const struct of_device_id ingenic_gpio_of_match[] = {
{ .compatible = "ingenic,jz4740-gpio", .data = (void *)ID_JZ4740 },
{ .compatible = "ingenic,jz4770-gpio", .data = (void *)ID_JZ4770 },
{ .compatible = "ingenic,jz4780-gpio", .data = (void *)ID_JZ4780 },
{},
};
MODULE_DEVICE_TABLE(of, ingenic_gpio_of_match);
static int ingenic_gpio_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct ingenic_gpio_chip *jzgc;
u32 bank;
int err;
jzgc = devm_kzalloc(dev, sizeof(*jzgc), GFP_KERNEL);
if (!jzgc)
return -ENOMEM;
jzgc->map = dev_get_drvdata(dev->parent);
if (!jzgc->map) {
dev_err(dev, "Cannot get parent regmap\n");
return -ENXIO;
}
err = of_property_read_u32(dev->of_node, "reg", &bank);
if (err) {
dev_err(dev, "Cannot read \"reg\" property: %i\n", err);
return err;
}
jzgc->reg_base = bank * 0x100;
jzgc->gc.label = devm_kasprintf(dev, GFP_KERNEL, "GPIO%c", 'A' + bank);
if (!jzgc->gc.label)
return -ENOMEM;
/* DO NOT EXPAND THIS: FOR BACKWARD GPIO NUMBERSPACE COMPATIBIBILITY
* ONLY: WORK TO TRANSITION CONSUMERS TO USE THE GPIO DESCRIPTOR API IN
* <linux/gpio/consumer.h> INSTEAD.
*/
jzgc->gc.base = bank * 32;
jzgc->gc.ngpio = 32;
jzgc->gc.parent = dev;
jzgc->gc.of_node = dev->of_node;
jzgc->gc.owner = THIS_MODULE;
jzgc->version = (enum jz_version)of_device_get_match_data(dev);
jzgc->gc.set = ingenic_gpio_set;
jzgc->gc.get = ingenic_gpio_get;
jzgc->gc.direction_input = ingenic_gpio_direction_input;
jzgc->gc.direction_output = ingenic_gpio_direction_output;
if (of_property_read_bool(dev->of_node, "gpio-ranges")) {
jzgc->gc.request = gpiochip_generic_request;
jzgc->gc.free = gpiochip_generic_free;
}
err = devm_gpiochip_add_data(dev, &jzgc->gc, jzgc);
if (err)
return err;
jzgc->irq = irq_of_parse_and_map(dev->of_node, 0);
if (!jzgc->irq)
return -EINVAL;
jzgc->irq_chip.name = jzgc->gc.label;
jzgc->irq_chip.irq_enable = ingenic_gpio_irq_enable;
jzgc->irq_chip.irq_disable = ingenic_gpio_irq_disable;
jzgc->irq_chip.irq_unmask = ingenic_gpio_irq_unmask;
jzgc->irq_chip.irq_mask = ingenic_gpio_irq_mask;
jzgc->irq_chip.irq_ack = ingenic_gpio_irq_ack;
jzgc->irq_chip.irq_set_type = ingenic_gpio_irq_set_type;
jzgc->irq_chip.irq_set_wake = ingenic_gpio_irq_set_wake;
jzgc->irq_chip.flags = IRQCHIP_MASK_ON_SUSPEND;
err = gpiochip_irqchip_add(&jzgc->gc, &jzgc->irq_chip, 0,
handle_level_irq, IRQ_TYPE_NONE);
if (err)
return err;
gpiochip_set_chained_irqchip(&jzgc->gc, &jzgc->irq_chip,
jzgc->irq, ingenic_gpio_irq_handler);
return 0;
}
static int ingenic_gpio_remove(struct platform_device *pdev)
{
return 0;
}
static struct platform_driver ingenic_gpio_driver = {
.driver = {
.name = "gpio-ingenic",
.of_match_table = of_match_ptr(ingenic_gpio_of_match),
},
.probe = ingenic_gpio_probe,
.remove = ingenic_gpio_remove,
};
static int __init ingenic_gpio_drv_register(void)
{
return platform_driver_register(&ingenic_gpio_driver);
}
subsys_initcall(ingenic_gpio_drv_register);
static void __exit ingenic_gpio_drv_unregister(void)
{
platform_driver_unregister(&ingenic_gpio_driver);
}
module_exit(ingenic_gpio_drv_unregister);
MODULE_AUTHOR("Paul Cercueil <paul@crapouillou.net>");
MODULE_DESCRIPTION("Ingenic JZ47xx GPIO driver");
MODULE_LICENSE("GPL");

6
drivers/pinctrl/Kconfig
View File

@ -309,12 +309,14 @@ config PINCTRL_ZYNQ
config PINCTRL_INGENIC
bool "Pinctrl driver for the Ingenic JZ47xx SoCs"
default y
default MACH_INGENIC
depends on OF
depends on MACH_INGENIC || COMPILE_TEST
depends on MIPS || COMPILE_TEST
select GENERIC_PINCONF
select GENERIC_PINCTRL_GROUPS
select GENERIC_PINMUX_FUNCTIONS
select GPIOLIB
select GPIOLIB_IRQCHIP
select REGMAP_MMIO
config PINCTRL_RK805

460
drivers/pinctrl/pinctrl-ingenic.c
View File

@ -7,10 +7,11 @@
*/
#include <linux/compiler.h>
#include <linux/gpio.h>
#include <linux/gpio/driver.h>
#include <linux/interrupt.h>
#include <linux/io.h>
#include <linux/of_device.h>
#include <linux/of_irq.h>
#include <linux/of_platform.h>
#include <linux/pinctrl/pinctrl.h>
#include <linux/pinctrl/pinmux.h>
@ -24,6 +25,9 @@
#include "pinconf.h"
#include "pinmux.h"
#define GPIO_PIN 0x00
#define GPIO_MSK 0x20
#define JZ4740_GPIO_DATA 0x10
#define JZ4740_GPIO_PULL_DIS 0x30
#define JZ4740_GPIO_FUNC 0x40
@ -33,7 +37,6 @@
#define JZ4740_GPIO_FLAG 0x80
#define JZ4770_GPIO_INT 0x10
#define JZ4770_GPIO_MSK 0x20
#define JZ4770_GPIO_PAT1 0x30
#define JZ4770_GPIO_PAT0 0x40
#define JZ4770_GPIO_FLAG 0x50
@ -46,6 +49,7 @@
enum jz_version {
ID_JZ4740,
ID_JZ4725B,
ID_JZ4770,
ID_JZ4780,
};
@ -72,6 +76,13 @@ struct ingenic_pinctrl {
const struct ingenic_chip_info *info;
};
struct ingenic_gpio_chip {
struct ingenic_pinctrl *jzpc;
struct gpio_chip gc;
struct irq_chip irq_chip;
unsigned int irq, reg_base;
};
static const u32 jz4740_pull_ups[4] = {
0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff,
};
@ -205,6 +216,99 @@ static const struct ingenic_chip_info jz4740_chip_info = {
.pull_downs = jz4740_pull_downs,
};
static int jz4725b_mmc0_1bit_pins[] = { 0x48, 0x49, 0x5c, };
static int jz4725b_mmc0_4bit_pins[] = { 0x5d, 0x5b, 0x56, };
static int jz4725b_mmc1_1bit_pins[] = { 0x7a, 0x7b, 0x7c, };
static int jz4725b_mmc1_4bit_pins[] = { 0x7d, 0x7e, 0x7f, };
static int jz4725b_uart_data_pins[] = { 0x4c, 0x4d, };
static int jz4725b_nand_cs1_pins[] = { 0x55, };
static int jz4725b_nand_cs2_pins[] = { 0x56, };
static int jz4725b_nand_cs3_pins[] = { 0x57, };
static int jz4725b_nand_cs4_pins[] = { 0x58, };
static int jz4725b_nand_cle_ale_pins[] = { 0x48, 0x49 };
static int jz4725b_nand_fre_fwe_pins[] = { 0x5c, 0x5d };
static int jz4725b_pwm_pwm0_pins[] = { 0x4a, };
static int jz4725b_pwm_pwm1_pins[] = { 0x4b, };
static int jz4725b_pwm_pwm2_pins[] = { 0x4c, };
static int jz4725b_pwm_pwm3_pins[] = { 0x4d, };
static int jz4725b_pwm_pwm4_pins[] = { 0x4e, };
static int jz4725b_pwm_pwm5_pins[] = { 0x4f, };
static int jz4725b_mmc0_1bit_funcs[] = { 1, 1, 1, };
static int jz4725b_mmc0_4bit_funcs[] = { 1, 0, 1, };
static int jz4725b_mmc1_1bit_funcs[] = { 0, 0, 0, };
static int jz4725b_mmc1_4bit_funcs[] = { 0, 0, 0, };
static int jz4725b_uart_data_funcs[] = { 1, 1, };
static int jz4725b_nand_cs1_funcs[] = { 0, };
static int jz4725b_nand_cs2_funcs[] = { 0, };
static int jz4725b_nand_cs3_funcs[] = { 0, };
static int jz4725b_nand_cs4_funcs[] = { 0, };
static int jz4725b_nand_cle_ale_funcs[] = { 0, 0, };
static int jz4725b_nand_fre_fwe_funcs[] = { 0, 0, };
static int jz4725b_pwm_pwm0_funcs[] = { 0, };
static int jz4725b_pwm_pwm1_funcs[] = { 0, };
static int jz4725b_pwm_pwm2_funcs[] = { 0, };
static int jz4725b_pwm_pwm3_funcs[] = { 0, };
static int jz4725b_pwm_pwm4_funcs[] = { 0, };
static int jz4725b_pwm_pwm5_funcs[] = { 0, };
static const struct group_desc jz4725b_groups[] = {
INGENIC_PIN_GROUP("mmc0-1bit", jz4725b_mmc0_1bit),
INGENIC_PIN_GROUP("mmc0-4bit", jz4725b_mmc0_4bit),
INGENIC_PIN_GROUP("mmc1-1bit", jz4725b_mmc1_1bit),
INGENIC_PIN_GROUP("mmc1-4bit", jz4725b_mmc1_4bit),
INGENIC_PIN_GROUP("uart-data", jz4725b_uart_data),
INGENIC_PIN_GROUP("nand-cs1", jz4725b_nand_cs1),
INGENIC_PIN_GROUP("nand-cs2", jz4725b_nand_cs2),
INGENIC_PIN_GROUP("nand-cs3", jz4725b_nand_cs3),
INGENIC_PIN_GROUP("nand-cs4", jz4725b_nand_cs4),
INGENIC_PIN_GROUP("nand-cle-ale", jz4725b_nand_cle_ale),
INGENIC_PIN_GROUP("nand-fre-fwe", jz4725b_nand_fre_fwe),
INGENIC_PIN_GROUP("pwm0", jz4725b_pwm_pwm0),
INGENIC_PIN_GROUP("pwm1", jz4725b_pwm_pwm1),
INGENIC_PIN_GROUP("pwm2", jz4725b_pwm_pwm2),
INGENIC_PIN_GROUP("pwm3", jz4725b_pwm_pwm3),
INGENIC_PIN_GROUP("pwm4", jz4725b_pwm_pwm4),
INGENIC_PIN_GROUP("pwm5", jz4725b_pwm_pwm5),
};
static const char *jz4725b_mmc0_groups[] = { "mmc0-1bit", "mmc0-4bit", };
static const char *jz4725b_mmc1_groups[] = { "mmc1-1bit", "mmc1-4bit", };
static const char *jz4725b_uart_groups[] = { "uart-data", };
static const char *jz4725b_nand_groups[] = {
"nand-cs1", "nand-cs2", "nand-cs3", "nand-cs4",
"nand-cle-ale", "nand-fre-fwe",
};
static const char *jz4725b_pwm0_groups[] = { "pwm0", };
static const char *jz4725b_pwm1_groups[] = { "pwm1", };
static const char *jz4725b_pwm2_groups[] = { "pwm2", };
static const char *jz4725b_pwm3_groups[] = { "pwm3", };
static const char *jz4725b_pwm4_groups[] = { "pwm4", };
static const char *jz4725b_pwm5_groups[] = { "pwm5", };
static const struct function_desc jz4725b_functions[] = {
{ "mmc0", jz4725b_mmc0_groups, ARRAY_SIZE(jz4725b_mmc0_groups), },
{ "mmc1", jz4725b_mmc1_groups, ARRAY_SIZE(jz4725b_mmc1_groups), },
{ "uart", jz4725b_uart_groups, ARRAY_SIZE(jz4725b_uart_groups), },
{ "nand", jz4725b_nand_groups, ARRAY_SIZE(jz4725b_nand_groups), },
{ "pwm0", jz4725b_pwm0_groups, ARRAY_SIZE(jz4725b_pwm0_groups), },
{ "pwm1", jz4725b_pwm1_groups, ARRAY_SIZE(jz4725b_pwm1_groups), },
{ "pwm2", jz4725b_pwm2_groups, ARRAY_SIZE(jz4725b_pwm2_groups), },
{ "pwm3", jz4725b_pwm3_groups, ARRAY_SIZE(jz4725b_pwm3_groups), },
{ "pwm4", jz4725b_pwm4_groups, ARRAY_SIZE(jz4725b_pwm4_groups), },
{ "pwm5", jz4725b_pwm5_groups, ARRAY_SIZE(jz4725b_pwm5_groups), },
};
static const struct ingenic_chip_info jz4725b_chip_info = {
.num_chips = 4,
.groups = jz4725b_groups,
.num_groups = ARRAY_SIZE(jz4725b_groups),
.functions = jz4725b_functions,
.num_functions = ARRAY_SIZE(jz4725b_functions),
.pull_ups = jz4740_pull_ups,
.pull_downs = jz4740_pull_downs,
};
static const u32 jz4770_pull_ups[6] = {
0x3fffffff, 0xfff0030c, 0xffffffff, 0xffff4fff, 0xfffffb7c, 0xffa7f00f,
};
@ -438,6 +542,235 @@ static const struct ingenic_chip_info jz4770_chip_info = {
.pull_downs = jz4770_pull_downs,
};
static u32 gpio_ingenic_read_reg(struct ingenic_gpio_chip *jzgc, u8 reg)
{
unsigned int val;
regmap_read(jzgc->jzpc->map, jzgc->reg_base + reg, &val);
return (u32) val;
}
static void gpio_ingenic_set_bit(struct ingenic_gpio_chip *jzgc,
u8 reg, u8 offset, bool set)
{
if (set)
reg = REG_SET(reg);
else
reg = REG_CLEAR(reg);
regmap_write(jzgc->jzpc->map, jzgc->reg_base + reg, BIT(offset));
}
static inline bool ingenic_gpio_get_value(struct ingenic_gpio_chip *jzgc,
u8 offset)
{
unsigned int val = gpio_ingenic_read_reg(jzgc, GPIO_PIN);
return !!(val & BIT(offset));
}
static void ingenic_gpio_set_value(struct ingenic_gpio_chip *jzgc,
u8 offset, int value)
{
if (jzgc->jzpc->version >= ID_JZ4770)
gpio_ingenic_set_bit(jzgc, JZ4770_GPIO_PAT0, offset, !!value);
else
gpio_ingenic_set_bit(jzgc, JZ4740_GPIO_DATA, offset, !!value);
}
static void irq_set_type(struct ingenic_gpio_chip *jzgc,
u8 offset, unsigned int type)
{
u8 reg1, reg2;
if (jzgc->jzpc->version >= ID_JZ4770) {
reg1 = JZ4770_GPIO_PAT1;
reg2 = JZ4770_GPIO_PAT0;
} else {
reg1 = JZ4740_GPIO_TRIG;
reg2 = JZ4740_GPIO_DIR;
}
switch (type) {
case IRQ_TYPE_EDGE_RISING:
gpio_ingenic_set_bit(jzgc, reg2, offset, true);
gpio_ingenic_set_bit(jzgc, reg1, offset, true);
break;
case IRQ_TYPE_EDGE_FALLING:
gpio_ingenic_set_bit(jzgc, reg2, offset, false);
gpio_ingenic_set_bit(jzgc, reg1, offset, true);
break;
case IRQ_TYPE_LEVEL_HIGH:
gpio_ingenic_set_bit(jzgc, reg2, offset, true);
gpio_ingenic_set_bit(jzgc, reg1, offset, false);
break;
case IRQ_TYPE_LEVEL_LOW:
default:
gpio_ingenic_set_bit(jzgc, reg2, offset, false);
gpio_ingenic_set_bit(jzgc, reg1, offset, false);
break;
}
}
static void ingenic_gpio_irq_mask(struct irq_data *irqd)
{
struct gpio_chip *gc = irq_data_get_irq_chip_data(irqd);
struct ingenic_gpio_chip *jzgc = gpiochip_get_data(gc);
gpio_ingenic_set_bit(jzgc, GPIO_MSK, irqd->hwirq, true);
}
static void ingenic_gpio_irq_unmask(struct irq_data *irqd)
{
struct gpio_chip *gc = irq_data_get_irq_chip_data(irqd);
struct ingenic_gpio_chip *jzgc = gpiochip_get_data(gc);
gpio_ingenic_set_bit(jzgc, GPIO_MSK, irqd->hwirq, false);
}
static void ingenic_gpio_irq_enable(struct irq_data *irqd)
{
struct gpio_chip *gc = irq_data_get_irq_chip_data(irqd);
struct ingenic_gpio_chip *jzgc = gpiochip_get_data(gc);
int irq = irqd->hwirq;
if (jzgc->jzpc->version >= ID_JZ4770)
gpio_ingenic_set_bit(jzgc, JZ4770_GPIO_INT, irq, true);
else
gpio_ingenic_set_bit(jzgc, JZ4740_GPIO_SELECT, irq, true);
ingenic_gpio_irq_unmask(irqd);
}
static void ingenic_gpio_irq_disable(struct irq_data *irqd)
{
struct gpio_chip *gc = irq_data_get_irq_chip_data(irqd);
struct ingenic_gpio_chip *jzgc = gpiochip_get_data(gc);
int irq = irqd->hwirq;
ingenic_gpio_irq_mask(irqd);
if (jzgc->jzpc->version >= ID_JZ4770)
gpio_ingenic_set_bit(jzgc, JZ4770_GPIO_INT, irq, false);
else
gpio_ingenic_set_bit(jzgc, JZ4740_GPIO_SELECT, irq, false);
}
static void ingenic_gpio_irq_ack(struct irq_data *irqd)
{
struct gpio_chip *gc = irq_data_get_irq_chip_data(irqd);
struct ingenic_gpio_chip *jzgc = gpiochip_get_data(gc);
int irq = irqd->hwirq;
bool high;
if (irqd_get_trigger_type(irqd) == IRQ_TYPE_EDGE_BOTH) {
/*
* Switch to an interrupt for the opposite edge to the one that
* triggered the interrupt being ACKed.
*/
high = ingenic_gpio_get_value(jzgc, irq);
if (high)
irq_set_type(jzgc, irq, IRQ_TYPE_EDGE_FALLING);
else
irq_set_type(jzgc, irq, IRQ_TYPE_EDGE_RISING);
}
if (jzgc->jzpc->version >= ID_JZ4770)
gpio_ingenic_set_bit(jzgc, JZ4770_GPIO_FLAG, irq, false);
else
gpio_ingenic_set_bit(jzgc, JZ4740_GPIO_DATA, irq, true);
}
static int ingenic_gpio_irq_set_type(struct irq_data *irqd, unsigned int type)
{
struct gpio_chip *gc = irq_data_get_irq_chip_data(irqd);
struct ingenic_gpio_chip *jzgc = gpiochip_get_data(gc);
switch (type) {
case IRQ_TYPE_EDGE_BOTH:
case IRQ_TYPE_EDGE_RISING:
case IRQ_TYPE_EDGE_FALLING:
irq_set_handler_locked(irqd, handle_edge_irq);
break;
case IRQ_TYPE_LEVEL_HIGH:
case IRQ_TYPE_LEVEL_LOW:
irq_set_handler_locked(irqd, handle_level_irq);
break;
default:
irq_set_handler_locked(irqd, handle_bad_irq);
}
if (type == IRQ_TYPE_EDGE_BOTH) {
/*
* The hardware does not support interrupts on both edges. The
* best we can do is to set up a single-edge interrupt and then
* switch to the opposing edge when ACKing the interrupt.
*/
bool high = ingenic_gpio_get_value(jzgc, irqd->hwirq);
type = high ? IRQ_TYPE_EDGE_FALLING : IRQ_TYPE_EDGE_RISING;
}
irq_set_type(jzgc, irqd->hwirq, type);
return 0;
}
static int ingenic_gpio_irq_set_wake(struct irq_data *irqd, unsigned int on)
{
struct gpio_chip *gc = irq_data_get_irq_chip_data(irqd);
struct ingenic_gpio_chip *jzgc = gpiochip_get_data(gc);
return irq_set_irq_wake(jzgc->irq, on);
}
static void ingenic_gpio_irq_handler(struct irq_desc *desc)
{
struct gpio_chip *gc = irq_desc_get_handler_data(desc);
struct ingenic_gpio_chip *jzgc = gpiochip_get_data(gc);
struct irq_chip *irq_chip = irq_data_get_irq_chip(&desc->irq_data);
unsigned long flag, i;
chained_irq_enter(irq_chip, desc);
if (jzgc->jzpc->version >= ID_JZ4770)
flag = gpio_ingenic_read_reg(jzgc, JZ4770_GPIO_FLAG);
else
flag = gpio_ingenic_read_reg(jzgc, JZ4740_GPIO_FLAG);
for_each_set_bit(i, &flag, 32)
generic_handle_irq(irq_linear_revmap(gc->irq.domain, i));
chained_irq_exit(irq_chip, desc);
}
static void ingenic_gpio_set(struct gpio_chip *gc,
unsigned int offset, int value)
{
struct ingenic_gpio_chip *jzgc = gpiochip_get_data(gc);
ingenic_gpio_set_value(jzgc, offset, value);
}
static int ingenic_gpio_get(struct gpio_chip *gc, unsigned int offset)
{
struct ingenic_gpio_chip *jzgc = gpiochip_get_data(gc);
return (int) ingenic_gpio_get_value(jzgc, offset);
}
static int ingenic_gpio_direction_input(struct gpio_chip *gc,
unsigned int offset)
{
return pinctrl_gpio_direction_input(gc->base + offset);
}
static int ingenic_gpio_direction_output(struct gpio_chip *gc,
unsigned int offset, int value)
{
ingenic_gpio_set(gc, offset, value);
return pinctrl_gpio_direction_output(gc->base + offset);
}
static inline void ingenic_config_pin(struct ingenic_pinctrl *jzpc,
unsigned int pin, u8 reg, bool set)
{
@ -460,6 +793,21 @@ static inline bool ingenic_get_pin_config(struct ingenic_pinctrl *jzpc,
return val & BIT(idx);
}
static int ingenic_gpio_get_direction(struct gpio_chip *gc, unsigned int offset)
{
struct ingenic_gpio_chip *jzgc = gpiochip_get_data(gc);
struct ingenic_pinctrl *jzpc = jzgc->jzpc;
unsigned int pin = gc->base + offset;
if (jzpc->version >= ID_JZ4770)
return ingenic_get_pin_config(jzpc, pin, JZ4770_GPIO_PAT1);
if (ingenic_get_pin_config(jzpc, pin, JZ4740_GPIO_SELECT))
return true;
return !ingenic_get_pin_config(jzpc, pin, JZ4740_GPIO_DIR);
}
static const struct pinctrl_ops ingenic_pctlops = {
.get_groups_count = pinctrl_generic_get_group_count,
.get_group_name = pinctrl_generic_get_group_name,
@ -479,7 +827,7 @@ static int ingenic_pinmux_set_pin_fn(struct ingenic_pinctrl *jzpc,
if (jzpc->version >= ID_JZ4770) {
ingenic_config_pin(jzpc, pin, JZ4770_GPIO_INT, false);
ingenic_config_pin(jzpc, pin, JZ4770_GPIO_MSK, false);
ingenic_config_pin(jzpc, pin, GPIO_MSK, false);
ingenic_config_pin(jzpc, pin, JZ4770_GPIO_PAT1, func & 0x2);
ingenic_config_pin(jzpc, pin, JZ4770_GPIO_PAT0, func & 0x1);
} else {
@ -532,7 +880,7 @@ static int ingenic_pinmux_gpio_set_direction(struct pinctrl_dev *pctldev,
if (jzpc->version >= ID_JZ4770) {
ingenic_config_pin(jzpc, pin, JZ4770_GPIO_INT, false);
ingenic_config_pin(jzpc, pin, JZ4770_GPIO_MSK, true);
ingenic_config_pin(jzpc, pin, GPIO_MSK, true);
ingenic_config_pin(jzpc, pin, JZ4770_GPIO_PAT1, input);
} else {
ingenic_config_pin(jzpc, pin, JZ4740_GPIO_SELECT, false);
@ -712,12 +1060,95 @@ static const struct regmap_config ingenic_pinctrl_regmap_config = {
static const struct of_device_id ingenic_pinctrl_of_match[] = {
{ .compatible = "ingenic,jz4740-pinctrl", .data = (void *) ID_JZ4740 },
{ .compatible = "ingenic,jz4725b-pinctrl", .data = (void *)ID_JZ4725B },
{ .compatible = "ingenic,jz4770-pinctrl", .data = (void *) ID_JZ4770 },
{ .compatible = "ingenic,jz4780-pinctrl", .data = (void *) ID_JZ4780 },
{},
};
static int ingenic_pinctrl_probe(struct platform_device *pdev)
static const struct of_device_id ingenic_gpio_of_match[] __initconst = {
{ .compatible = "ingenic,jz4740-gpio", },
{ .compatible = "ingenic,jz4770-gpio", },
{ .compatible = "ingenic,jz4780-gpio", },
{},
};
static int __init ingenic_gpio_probe(struct ingenic_pinctrl *jzpc,
struct device_node *node)
{
struct ingenic_gpio_chip *jzgc;
struct device *dev = jzpc->dev;
unsigned int bank;
int err;
err = of_property_read_u32(node, "reg", &bank);
if (err) {
dev_err(dev, "Cannot read \"reg\" property: %i\n", err);
return err;
}
jzgc = devm_kzalloc(dev, sizeof(*jzgc), GFP_KERNEL);
if (!jzgc)
return -ENOMEM;
jzgc->jzpc = jzpc;
jzgc->reg_base = bank * 0x100;
jzgc->gc.label = devm_kasprintf(dev, GFP_KERNEL, "GPIO%c", 'A' + bank);
if (!jzgc->gc.label)
return -ENOMEM;
/* DO NOT EXPAND THIS: FOR BACKWARD GPIO NUMBERSPACE COMPATIBIBILITY
* ONLY: WORK TO TRANSITION CONSUMERS TO USE THE GPIO DESCRIPTOR API IN
* <linux/gpio/consumer.h> INSTEAD.
*/
jzgc->gc.base = bank * 32;
jzgc->gc.ngpio = 32;
jzgc->gc.parent = dev;
jzgc->gc.of_node = node;
jzgc->gc.owner = THIS_MODULE;
jzgc->gc.set = ingenic_gpio_set;
jzgc->gc.get = ingenic_gpio_get;
jzgc->gc.direction_input = ingenic_gpio_direction_input;
jzgc->gc.direction_output = ingenic_gpio_direction_output;
jzgc->gc.get_direction = ingenic_gpio_get_direction;
if (of_property_read_bool(node, "gpio-ranges")) {
jzgc->gc.request = gpiochip_generic_request;
jzgc->gc.free = gpiochip_generic_free;
}
err = devm_gpiochip_add_data(dev, &jzgc->gc, jzgc);
if (err)
return err;
jzgc->irq = irq_of_parse_and_map(node, 0);
if (!jzgc->irq)
return -EINVAL;
jzgc->irq_chip.name = jzgc->gc.label;
jzgc->irq_chip.irq_enable = ingenic_gpio_irq_enable;
jzgc->irq_chip.irq_disable = ingenic_gpio_irq_disable;
jzgc->irq_chip.irq_unmask = ingenic_gpio_irq_unmask;
jzgc->irq_chip.irq_mask = ingenic_gpio_irq_mask;
jzgc->irq_chip.irq_ack = ingenic_gpio_irq_ack;
jzgc->irq_chip.irq_set_type = ingenic_gpio_irq_set_type;
jzgc->irq_chip.irq_set_wake = ingenic_gpio_irq_set_wake;
jzgc->irq_chip.flags = IRQCHIP_MASK_ON_SUSPEND;
err = gpiochip_irqchip_add(&jzgc->gc, &jzgc->irq_chip, 0,
handle_level_irq, IRQ_TYPE_NONE);
if (err)
return err;
gpiochip_set_chained_irqchip(&jzgc->gc, &jzgc->irq_chip,
jzgc->irq, ingenic_gpio_irq_handler);
return 0;
}
static int __init ingenic_pinctrl_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct ingenic_pinctrl *jzpc;
@ -727,6 +1158,7 @@ static int ingenic_pinctrl_probe(struct platform_device *pdev)
const struct of_device_id *of_id = of_match_device(
ingenic_pinctrl_of_match, dev);
const struct ingenic_chip_info *chip_info;
struct device_node *node;
unsigned int i;
int err;
@ -755,6 +1187,8 @@ static int ingenic_pinctrl_probe(struct platform_device *pdev)
if (jzpc->version >= ID_JZ4770)
chip_info = &jz4770_chip_info;
else if (jzpc->version >= ID_JZ4725B)
chip_info = &jz4725b_chip_info;
else
chip_info = &jz4740_chip_info;
jzpc->info = chip_info;
@ -815,10 +1249,10 @@ static int ingenic_pinctrl_probe(struct platform_device *pdev)
dev_set_drvdata(dev, jzpc->map);
if (dev->of_node) {
err = of_platform_populate(dev->of_node, NULL, NULL, dev);
if (err) {
dev_err(dev, "Failed to probe GPIO devices\n");
for_each_child_of_node(dev->of_node, node) {
if (of_match_node(ingenic_gpio_of_match, node)) {
err = ingenic_gpio_probe(jzpc, node);
if (err)
return err;
}
}
@ -828,6 +1262,7 @@ static int ingenic_pinctrl_probe(struct platform_device *pdev)
static const struct platform_device_id ingenic_pinctrl_ids[] = {
{ "jz4740-pinctrl", ID_JZ4740 },
{ "jz4725b-pinctrl", ID_JZ4725B },
{ "jz4770-pinctrl", ID_JZ4770 },
{ "jz4780-pinctrl", ID_JZ4780 },
{},
@ -837,14 +1272,13 @@ static struct platform_driver ingenic_pinctrl_driver = {
.driver = {
.name = "pinctrl-ingenic",
.of_match_table = of_match_ptr(ingenic_pinctrl_of_match),
.suppress_bind_attrs = true,
},
.probe = ingenic_pinctrl_probe,
.id_table = ingenic_pinctrl_ids,
};
static int __init ingenic_pinctrl_drv_register(void)
{
return platform_driver_register(&ingenic_pinctrl_driver);
return platform_driver_probe(&ingenic_pinctrl_driver,
ingenic_pinctrl_probe);
}
postcore_initcall(ingenic_pinctrl_drv_register);
subsys_initcall(ingenic_pinctrl_drv_register);