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Commit b0c3e54e authored by Steffen Kothe's avatar Steffen Kothe Committed by Linus Walleij
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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: default avatarSteffen Kothe <steffen.kothe.gc1993@googlemail.com>
Signed-off-by: default avatarLinus Walleij <linus.walleij@linaro.org>
parent 3ae4f3aa

drivers/gpio/gpio-f7188x.c

+23 −1
Original line number Diff line number Diff line
@@ -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;