mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-05 15:56:40 +07:00
2dfea3803d
We have several new drivers, most of the time coming with their sub devices drivers: - Austria Microsystem's AS3711 - Nano River's viperboard - TI's TPS80031, AM335x TS/ADC, - Realtek's MMC/memstick card reader - Nokia's retu We also got some notable cleanups and improvements: - tps6586x got converted to IRQ domains. - tps65910 and tps65090 moved to the regmap IRQ API. - STMPE is now Device Tree aware. - A general twl6040 and twl-core cleanup, with moves to the regmap I/O and IRQ APIs and a conversion to the recently added PWM framework. - sta2x11 gained regmap support. Then the rest is mostly tiny cleanups and fixes, among which we have Mark's wm5xxx and wm8xxx patchset. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQIcBAABAgAGBQJQznPnAAoJEIqAPN1PVmxKuA8P/0nOJduXFM1c0Gy+DD5DnJnG cXzzeSTV8iO3a3sHIye43QPJ5V2YUR5uxLTUEOo/G7my/MoZ/azeNidkUD3qLVlm wVIq35lcS8dWTZaY7nlpBcWc6e39UB0sEueuJNxyhOv5lnMKdi2tAow5f4vIRQnd Q67/EbrgqdltcOpGmVuCdQcvphvWgy+K65jzbJG5zXs7hGX13Q+M5RnYhx76kc8f TDd0APZ71n5/RyISFSBSu2vfl2kES6o47aMgqqXMEHri6d3puAaXM0rFoMzXg/4G eBdxndN25H7rW7xvt9tuUod2rn1AO7tif5d7jal3Cfj61y3iqKY30yb3OzS9XQXH 9WZ2qDst11zvzQivxIkMGvfRXRfncNLWR4DrBSqVfSbYV2uQj2eS8C6ONwKVMXsQ 5tjNp91PFqN19sWQjIjSMcrNswxgpvdQ9mqFTyOGmISbqrpPSTi+MuO8r9+xTfUF PnzUX2nVOW/i9NcI7uotjzh8jiw6t8XMVHhkehiSYR9hzCb6MaPsFPN4jWq9XA2m 1htCHylNpHqHQ3Mup7Is6j0Li1ahdwfm4lbrgiVEA4t4Mqs5E/Ka+3V8laNAKylW PfCP/VmnJYzmgVTK/qobFNeKzRqR0i4WTL6T7oAxGL87Q4TJaqKpEkXWne8UXV+Q yIbN0fmWfCveCetM+vaf =F790 -----END PGP SIGNATURE----- Merge tag 'mfd-3.8-1' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6 Pull MFS update from Samuel Ortiz: "This is the MFD patch set for the 3.8 merge window. We have several new drivers, most of the time coming with their sub devices drivers: - Austria Microsystem's AS3711 - Nano River's viperboard - TI's TPS80031, AM335x TS/ADC, - Realtek's MMC/memstick card reader - Nokia's retu We also got some notable cleanups and improvements: - tps6586x got converted to IRQ domains. - tps65910 and tps65090 moved to the regmap IRQ API. - STMPE is now Device Tree aware. - A general twl6040 and twl-core cleanup, with moves to the regmap I/O and IRQ APIs and a conversion to the recently added PWM framework. - sta2x11 gained regmap support. Then the rest is mostly tiny cleanups and fixes, among which we have Mark's wm5xxx and wm8xxx patchset." Far amount of annoying but largely trivial conflicts. Many due to __devinit/exit removal, others due to one or two of the new drivers also having come in through another tree. * tag 'mfd-3.8-1' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6: (119 commits) mfd: tps6507x: Convert to devm_kzalloc mfd: stmpe: Update DT support for stmpe driver mfd: wm5102: Add readback of DSP status 3 register mfd: arizona: Log if we fail to create the primary IRQ domain mfd: tps80031: MFD_TPS80031 needs to select REGMAP_IRQ mfd: tps80031: Add terminating entry for tps80031_id_table mfd: sta2x11: Fix potential NULL pointer dereference in __sta2x11_mfd_mask() mfd: wm5102: Add tuning for revision B mfd: arizona: Defer patch initialistation until after first device boot mfd: tps65910: Fix wrong ack_base register mfd: tps65910: Remove unused data mfd: stmpe: Get rid of irq_invert_polarity mfd: ab8500-core: Fix invalid free of devm_ allocated data mfd: wm5102: Mark DSP memory regions as volatile mfd: wm5102: Correct default for LDO1_CONTROL_2 mfd: arizona: Register haptics devices mfd: wm8994: Make current device behaviour the default mfd: tps65090: MFD_TPS65090 needs to select REGMAP_IRQ mfd: Fix stmpe.c build when OF is not enabled mfd: jz4740-adc: Use devm_kzalloc ...
258 lines
6.3 KiB
C
258 lines
6.3 KiB
C
/*
|
|
* GPIO Driver for Dialog DA9052 PMICs.
|
|
*
|
|
* Copyright(c) 2011 Dialog Semiconductor Ltd.
|
|
*
|
|
* Author: David Dajun Chen <dchen@diasemi.com>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify it
|
|
* under the terms of the GNU General Public License as published by the
|
|
* Free Software Foundation; either version 2 of the License, or (at your
|
|
* option) any later version.
|
|
*
|
|
*/
|
|
#include <linux/module.h>
|
|
#include <linux/fs.h>
|
|
#include <linux/uaccess.h>
|
|
#include <linux/platform_device.h>
|
|
#include <linux/gpio.h>
|
|
#include <linux/syscalls.h>
|
|
#include <linux/seq_file.h>
|
|
|
|
#include <linux/mfd/da9052/da9052.h>
|
|
#include <linux/mfd/da9052/reg.h>
|
|
#include <linux/mfd/da9052/pdata.h>
|
|
|
|
#define DA9052_INPUT 1
|
|
#define DA9052_OUTPUT_OPENDRAIN 2
|
|
#define DA9052_OUTPUT_PUSHPULL 3
|
|
|
|
#define DA9052_SUPPLY_VDD_IO1 0
|
|
|
|
#define DA9052_DEBOUNCING_OFF 0
|
|
#define DA9052_DEBOUNCING_ON 1
|
|
|
|
#define DA9052_OUTPUT_LOWLEVEL 0
|
|
|
|
#define DA9052_ACTIVE_LOW 0
|
|
#define DA9052_ACTIVE_HIGH 1
|
|
|
|
#define DA9052_GPIO_MAX_PORTS_PER_REGISTER 8
|
|
#define DA9052_GPIO_SHIFT_COUNT(no) (no%8)
|
|
#define DA9052_GPIO_MASK_UPPER_NIBBLE 0xF0
|
|
#define DA9052_GPIO_MASK_LOWER_NIBBLE 0x0F
|
|
#define DA9052_GPIO_NIBBLE_SHIFT 4
|
|
#define DA9052_IRQ_GPI0 16
|
|
#define DA9052_GPIO_ODD_SHIFT 7
|
|
#define DA9052_GPIO_EVEN_SHIFT 3
|
|
|
|
struct da9052_gpio {
|
|
struct da9052 *da9052;
|
|
struct gpio_chip gp;
|
|
};
|
|
|
|
static inline struct da9052_gpio *to_da9052_gpio(struct gpio_chip *chip)
|
|
{
|
|
return container_of(chip, struct da9052_gpio, gp);
|
|
}
|
|
|
|
static unsigned char da9052_gpio_port_odd(unsigned offset)
|
|
{
|
|
return offset % 2;
|
|
}
|
|
|
|
static int da9052_gpio_get(struct gpio_chip *gc, unsigned offset)
|
|
{
|
|
struct da9052_gpio *gpio = to_da9052_gpio(gc);
|
|
int da9052_port_direction = 0;
|
|
int ret;
|
|
|
|
ret = da9052_reg_read(gpio->da9052,
|
|
DA9052_GPIO_0_1_REG + (offset >> 1));
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
if (da9052_gpio_port_odd(offset)) {
|
|
da9052_port_direction = ret & DA9052_GPIO_ODD_PORT_PIN;
|
|
da9052_port_direction >>= 4;
|
|
} else {
|
|
da9052_port_direction = ret & DA9052_GPIO_EVEN_PORT_PIN;
|
|
}
|
|
|
|
switch (da9052_port_direction) {
|
|
case DA9052_INPUT:
|
|
if (offset < DA9052_GPIO_MAX_PORTS_PER_REGISTER)
|
|
ret = da9052_reg_read(gpio->da9052,
|
|
DA9052_STATUS_C_REG);
|
|
else
|
|
ret = da9052_reg_read(gpio->da9052,
|
|
DA9052_STATUS_D_REG);
|
|
if (ret < 0)
|
|
return ret;
|
|
if (ret & (1 << DA9052_GPIO_SHIFT_COUNT(offset)))
|
|
return 1;
|
|
else
|
|
return 0;
|
|
case DA9052_OUTPUT_PUSHPULL:
|
|
if (da9052_gpio_port_odd(offset))
|
|
return ret & DA9052_GPIO_ODD_PORT_MODE;
|
|
else
|
|
return ret & DA9052_GPIO_EVEN_PORT_MODE;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
}
|
|
|
|
static void da9052_gpio_set(struct gpio_chip *gc, unsigned offset, int value)
|
|
{
|
|
struct da9052_gpio *gpio = to_da9052_gpio(gc);
|
|
int ret;
|
|
|
|
if (da9052_gpio_port_odd(offset)) {
|
|
ret = da9052_reg_update(gpio->da9052, (offset >> 1) +
|
|
DA9052_GPIO_0_1_REG,
|
|
DA9052_GPIO_ODD_PORT_MODE,
|
|
value << DA9052_GPIO_ODD_SHIFT);
|
|
if (ret != 0)
|
|
dev_err(gpio->da9052->dev,
|
|
"Failed to updated gpio odd reg,%d",
|
|
ret);
|
|
} else {
|
|
ret = da9052_reg_update(gpio->da9052, (offset >> 1) +
|
|
DA9052_GPIO_0_1_REG,
|
|
DA9052_GPIO_EVEN_PORT_MODE,
|
|
value << DA9052_GPIO_EVEN_SHIFT);
|
|
if (ret != 0)
|
|
dev_err(gpio->da9052->dev,
|
|
"Failed to updated gpio even reg,%d",
|
|
ret);
|
|
}
|
|
}
|
|
|
|
static int da9052_gpio_direction_input(struct gpio_chip *gc, unsigned offset)
|
|
{
|
|
struct da9052_gpio *gpio = to_da9052_gpio(gc);
|
|
unsigned char register_value;
|
|
int ret;
|
|
|
|
/* Format: function - 2 bits type - 1 bit mode - 1 bit */
|
|
register_value = DA9052_INPUT | DA9052_ACTIVE_LOW << 2 |
|
|
DA9052_DEBOUNCING_ON << 3;
|
|
|
|
if (da9052_gpio_port_odd(offset))
|
|
ret = da9052_reg_update(gpio->da9052, (offset >> 1) +
|
|
DA9052_GPIO_0_1_REG,
|
|
DA9052_GPIO_MASK_UPPER_NIBBLE,
|
|
(register_value <<
|
|
DA9052_GPIO_NIBBLE_SHIFT));
|
|
else
|
|
ret = da9052_reg_update(gpio->da9052, (offset >> 1) +
|
|
DA9052_GPIO_0_1_REG,
|
|
DA9052_GPIO_MASK_LOWER_NIBBLE,
|
|
register_value);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int da9052_gpio_direction_output(struct gpio_chip *gc,
|
|
unsigned offset, int value)
|
|
{
|
|
struct da9052_gpio *gpio = to_da9052_gpio(gc);
|
|
unsigned char register_value;
|
|
int ret;
|
|
|
|
/* Format: Function - 2 bits Type - 1 bit Mode - 1 bit */
|
|
register_value = DA9052_OUTPUT_PUSHPULL | DA9052_SUPPLY_VDD_IO1 << 2 |
|
|
value << 3;
|
|
|
|
if (da9052_gpio_port_odd(offset))
|
|
ret = da9052_reg_update(gpio->da9052, (offset >> 1) +
|
|
DA9052_GPIO_0_1_REG,
|
|
DA9052_GPIO_MASK_UPPER_NIBBLE,
|
|
(register_value <<
|
|
DA9052_GPIO_NIBBLE_SHIFT));
|
|
else
|
|
ret = da9052_reg_update(gpio->da9052, (offset >> 1) +
|
|
DA9052_GPIO_0_1_REG,
|
|
DA9052_GPIO_MASK_LOWER_NIBBLE,
|
|
register_value);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int da9052_gpio_to_irq(struct gpio_chip *gc, u32 offset)
|
|
{
|
|
struct da9052_gpio *gpio = to_da9052_gpio(gc);
|
|
struct da9052 *da9052 = gpio->da9052;
|
|
|
|
int irq;
|
|
|
|
irq = regmap_irq_get_virq(da9052->irq_data, DA9052_IRQ_GPI0 + offset);
|
|
|
|
return irq;
|
|
}
|
|
|
|
static struct gpio_chip reference_gp = {
|
|
.label = "da9052-gpio",
|
|
.owner = THIS_MODULE,
|
|
.get = da9052_gpio_get,
|
|
.set = da9052_gpio_set,
|
|
.direction_input = da9052_gpio_direction_input,
|
|
.direction_output = da9052_gpio_direction_output,
|
|
.to_irq = da9052_gpio_to_irq,
|
|
.can_sleep = 1,
|
|
.ngpio = 16,
|
|
.base = -1,
|
|
};
|
|
|
|
static int da9052_gpio_probe(struct platform_device *pdev)
|
|
{
|
|
struct da9052_gpio *gpio;
|
|
struct da9052_pdata *pdata;
|
|
int ret;
|
|
|
|
gpio = devm_kzalloc(&pdev->dev, sizeof(*gpio), GFP_KERNEL);
|
|
if (gpio == NULL)
|
|
return -ENOMEM;
|
|
|
|
gpio->da9052 = dev_get_drvdata(pdev->dev.parent);
|
|
pdata = gpio->da9052->dev->platform_data;
|
|
|
|
gpio->gp = reference_gp;
|
|
if (pdata && pdata->gpio_base)
|
|
gpio->gp.base = pdata->gpio_base;
|
|
|
|
ret = gpiochip_add(&gpio->gp);
|
|
if (ret < 0) {
|
|
dev_err(&pdev->dev, "Could not register gpiochip, %d\n", ret);
|
|
return ret;
|
|
}
|
|
|
|
platform_set_drvdata(pdev, gpio);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int da9052_gpio_remove(struct platform_device *pdev)
|
|
{
|
|
struct da9052_gpio *gpio = platform_get_drvdata(pdev);
|
|
|
|
return gpiochip_remove(&gpio->gp);
|
|
}
|
|
|
|
static struct platform_driver da9052_gpio_driver = {
|
|
.probe = da9052_gpio_probe,
|
|
.remove = da9052_gpio_remove,
|
|
.driver = {
|
|
.name = "da9052-gpio",
|
|
.owner = THIS_MODULE,
|
|
},
|
|
};
|
|
|
|
module_platform_driver(da9052_gpio_driver);
|
|
|
|
MODULE_AUTHOR("David Dajun Chen <dchen@diasemi.com>");
|
|
MODULE_DESCRIPTION("DA9052 GPIO Device Driver");
|
|
MODULE_LICENSE("GPL");
|
|
MODULE_ALIAS("platform:da9052-gpio");
|