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gpio: f7188x: add GPIO support for F71869

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Add support for the GPIOs found on the Fintek SuperI/O chip F71869, such
as the one found on the Jetway NF96u-525 motherboard, to the f7188x gpio
driver.

Signed-off-by: Andreas Bofjall <andreas@gazonk.org>
Tested-by: Les Schaffer <schaffer@optonline.net>
Reviewed-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Andreas Bofjall 2015-03-09 21:55:13 +01:00 committed by Linus Walleij
parent 3f8f4f19b9
commit 24ccef359e
2 changed files with 24 additions and 5 deletions
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4
drivers/gpio/Kconfig
View file

@ -198,11 +198,11 @@ config GPIO_MM_LANTIQ
created by attaching a 16bit latch to the bus.
config GPIO_F7188X
tristate "F71882FG and F71889F GPIO support"
tristate "F71869, F71882FG and F71889F GPIO support"
depends on X86
help
This option enables support for GPIOs found on Fintek Super-I/O
chips F71882FG and F71889F.
chips F71869, F71882FG and F71889F.
To compile this driver as a module, choose M here: the module will
be called f7188x-gpio.

25
drivers/gpio/gpio-f7188x.c
View file

@ -1,5 +1,5 @@
/*
* GPIO driver for Fintek Super-I/O F71882 and F71889
* GPIO driver for Fintek Super-I/O F71869, F71882 and F71889
*
* Copyright (C) 2010-2013 LaCie
*
@ -32,12 +32,14 @@
#define SIO_LOCK_KEY 0xAA /* Key to disable Super-I/O */
#define SIO_FINTEK_ID 0x1934 /* Manufacturer ID */
#define SIO_F71869_ID 0x0814 /* F71869 chipset ID */
#define SIO_F71882_ID 0x0541 /* F71882 chipset ID */
#define SIO_F71889_ID 0x0909 /* F71889 chipset ID */
enum chips { f71882fg, f71889f };
enum chips { f71869, f71882fg, f71889f };
static const char * const f7188x_names[] = {
"f71869",
"f71882fg",
"f71889f",
};
@ -146,6 +148,16 @@ static void f7188x_gpio_set(struct gpio_chip *chip, unsigned offset, int value);
/* Output mode register (0:open drain 1:push-pull). */
#define gpio_out_mode(base) (base + 3)
static struct f7188x_gpio_bank f71869_gpio_bank[] = {
F7188X_GPIO_BANK(0, 6, 0xF0),
F7188X_GPIO_BANK(10, 8, 0xE0),
F7188X_GPIO_BANK(20, 8, 0xD0),
F7188X_GPIO_BANK(30, 8, 0xC0),
F7188X_GPIO_BANK(40, 8, 0xB0),
F7188X_GPIO_BANK(50, 5, 0xA0),
F7188X_GPIO_BANK(60, 6, 0x90),
};
static struct f7188x_gpio_bank f71882_gpio_bank[] = {
F7188X_GPIO_BANK(0 , 8, 0xF0),
F7188X_GPIO_BANK(10, 8, 0xE0),
@ -281,6 +293,10 @@ static int f7188x_gpio_probe(struct platform_device *pdev)
return -ENOMEM;
switch (sio->type) {
case f71869:
data->nr_bank = ARRAY_SIZE(f71869_gpio_bank);
data->bank = f71869_gpio_bank;
break;
case f71882fg:
data->nr_bank = ARRAY_SIZE(f71882_gpio_bank);
data->bank = f71882_gpio_bank;
@ -354,6 +370,9 @@ static int __init f7188x_find(int addr, struct f7188x_sio *sio)
devid = superio_inw(addr, SIO_DEVID);
switch (devid) {
case SIO_F71869_ID:
sio->type = f71869;
break;
case SIO_F71882_ID:
sio->type = f71882fg;
break;
@ -450,6 +469,6 @@ static void __exit f7188x_gpio_exit(void)
}
module_exit(f7188x_gpio_exit);
MODULE_DESCRIPTION("GPIO driver for Super-I/O chips F71882FG and F71889F");
MODULE_DESCRIPTION("GPIO driver for Super-I/O chips F71869, F71882FG and F71889F");
MODULE_AUTHOR("Simon Guinot <simon.guinot@sequanux.org>");
MODULE_LICENSE("GPL");