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gpio-f7188x: add support Fintek F81804 & F81966 

Basic implementation of driver is used to support Fintek
F81804 & F81966 gpios with custom register set.

Signed-off-by: Steffen Kothe <steffen.kothe.gc1993@googlemail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Steffen Kothe 2019-01-16 08:31:25 +01:00 committed by Linus Walleij
parent 3ae4f3aac0
commit b0c3e54e24
1 changed files with 23 additions and 1 deletions
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24
drivers/gpio/gpio-f7188x.c
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@ -39,8 +39,10 @@
#define SIO_F71889_ID 0x0909 /* F71889 chipset ID */
#define SIO_F71889A_ID 0x1005 /* F71889A chipset ID */
#define SIO_F81866_ID 0x1010 /* F81866 chipset ID */
#define SIO_F81804_ID 0x1502 /* F81804 chipset ID, same for f81966 */
enum chips { f71869, f71869a, f71882fg, f71889a, f71889f, f81866 };
enum chips { f71869, f71869a, f71882fg, f71889a, f71889f, f81866, f81804 };
static const char * const f7188x_names[] = {
"f71869",
@ -49,6 +51,7 @@ static const char * const f7188x_names[] = {
"f71889a",
"f71889f",
"f81866",
"f81804",
};
struct f7188x_sio {
@ -223,6 +226,18 @@ static struct f7188x_gpio_bank f81866_gpio_bank[] = {
F7188X_GPIO_BANK(80, 8, 0x88),
};
static struct f7188x_gpio_bank f81804_gpio_bank[] = {
F7188X_GPIO_BANK(0, 8, 0xF0),
F7188X_GPIO_BANK(10, 8, 0xE0),
F7188X_GPIO_BANK(20, 8, 0xD0),
F7188X_GPIO_BANK(50, 8, 0xA0),
F7188X_GPIO_BANK(60, 8, 0x90),
F7188X_GPIO_BANK(70, 8, 0x80),
F7188X_GPIO_BANK(90, 8, 0x98),
};
static int f7188x_gpio_get_direction(struct gpio_chip *chip, unsigned offset)
{
int err;
@ -407,6 +422,10 @@ static int f7188x_gpio_probe(struct platform_device *pdev)
data->nr_bank = ARRAY_SIZE(f81866_gpio_bank);
data->bank = f81866_gpio_bank;
break;
case f81804:
data->nr_bank = ARRAY_SIZE(f81804_gpio_bank);
data->bank = f81804_gpio_bank;
break;
default:
return -ENODEV;
}
@ -469,6 +488,9 @@ static int __init f7188x_find(int addr, struct f7188x_sio *sio)
case SIO_F81866_ID:
sio->type = f81866;
break;
case SIO_F81804_ID:
sio->type = f81804;
break;
default:
pr_info(DRVNAME ": Unsupported Fintek device 0x%04x\n", devid);
goto err;