gpio-f7188x: Add F81866 GPIO supports

Add F81866 GPIO supports

Fintek F81866 is a SuperIO. It contains HWMON/GPIO/Serial Ports.
and it has totally 72(9x8 sets) gpio pins.

Here is the PDF spec:
http://www.alldatasheet.com/datasheet-pdf/pdf/459085/FINTEK/F81866AD-I.html

The control method is the same with F7188x, but we should care the address
of GPIO8x.

GPIO address is below:
    GPIO0x based: 0xf0
    GPIO1x based: 0xe0
    GPIO2x based: 0xd0
    GPIO3x based: 0xc0
    GPIO4x based: 0xb0
    GPIO5x based: 0xa0
    GPIO6x based: 0x90
    GPIO7x based: 0x80
    GPIO8x based: 0x88 <-- not 0x70.

Signed-off-by: Peter Hung <hpeter+linux_kernel@gmail.com>
Acked-by: Simon Guinot <simon.guinot@sequanux.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig
index 5e317486a8cc88049e0b03999b9e4d305f4df3f2..f9f52ec549b7d6d6785ab338e4be162ce4fd8bd7 100644 (file)
--- a/drivers/gpio/Kconfig
+++ b/drivers/gpio/Kconfig
@@ -515,10 +515,10 @@ config GPIO_104_IDI_48
          via the idi_48_irq module parameter.
 
 config GPIO_F7188X
-       tristate "F71869, F71869A, F71882FG and F71889F GPIO support"
+       tristate "F71869, F71869A, F71882FG, F71889F and F81866 GPIO support"
        help
          This option enables support for GPIOs found on Fintek Super-I/O
-         chips F71869, F71869A, F71882FG and F71889F.
+         chips F71869, F71869A, F71882FG, F71889F and F81866.
 
          To compile this driver as a module, choose M here: the module will
          be called f7188x-gpio.

diff --git a/drivers/gpio/gpio-f7188x.c b/drivers/gpio/gpio-f7188x.c
index d62fd6bbaf823b1789559b4d0349607a76300c75..0417798c45f1dd54597b9ee9495d6fdcb4044420 100644 (file)
--- a/drivers/gpio/gpio-f7188x.c
+++ b/drivers/gpio/gpio-f7188x.c
@@ -1,5 +1,5 @@
 /*
- * GPIO driver for Fintek Super-I/O F71869, F71869A, F71882 and F71889
+ * GPIO driver for Fintek Super-I/O F71869, F71869A, F71882, F71889 and F81866
  *
  * Copyright (C) 2010-2013 LaCie
  *
@@ -36,14 +36,16 @@
 #define SIO_F71869A_ID         0x1007  /* F71869A chipset ID */
 #define SIO_F71882_ID          0x0541  /* F71882 chipset ID */
 #define SIO_F71889_ID          0x0909  /* F71889 chipset ID */
+#define SIO_F81866_ID          0x1010  /* F81866 chipset ID */
 
-enum chips { f71869, f71869a, f71882fg, f71889f };
+enum chips { f71869, f71869a, f71882fg, f71889f, f81866 };
 
 static const char * const f7188x_names[] = {
        "f71869",
        "f71869a",
        "f71882fg",
        "f71889f",
+       "f81866",
 };
 
 struct f7188x_sio {
@@ -190,6 +192,18 @@ static struct f7188x_gpio_bank f71889_gpio_bank[] = {
        F7188X_GPIO_BANK(70, 8, 0x80),
 };
 
+static struct f7188x_gpio_bank f81866_gpio_bank[] = {
+       F7188X_GPIO_BANK(0, 8, 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, 8, 0xA0),
+       F7188X_GPIO_BANK(60, 8, 0x90),
+       F7188X_GPIO_BANK(70, 8, 0x80),
+       F7188X_GPIO_BANK(80, 8, 0x88),
+};
+
 static int f7188x_gpio_direction_in(struct gpio_chip *chip, unsigned offset)
 {
        int err;
@@ -318,6 +332,10 @@ static int f7188x_gpio_probe(struct platform_device *pdev)
                data->nr_bank = ARRAY_SIZE(f71889_gpio_bank);
                data->bank = f71889_gpio_bank;
                break;
+       case f81866:
+               data->nr_bank = ARRAY_SIZE(f81866_gpio_bank);
+               data->bank = f81866_gpio_bank;
+               break;
        default:
                return -ENODEV;
        }
@@ -395,6 +413,9 @@ static int __init f7188x_find(int addr, struct f7188x_sio *sio)
        case SIO_F71889_ID:
                sio->type = f71889f;
                break;
+       case SIO_F81866_ID:
+               sio->type = f81866;
+               break;
        default:
                pr_info(DRVNAME ": Unsupported Fintek device 0x%04x\n", devid);
                goto err;
@@ -485,6 +506,6 @@ static void __exit f7188x_gpio_exit(void)
 }
 module_exit(f7188x_gpio_exit);
 
-MODULE_DESCRIPTION("GPIO driver for Super-I/O chips F71869, F71869A, F71882FG and F71889F");
+MODULE_DESCRIPTION("GPIO driver for Super-I/O chips F71869, F71869A, F71882FG, F71889F and F81866");
 MODULE_AUTHOR("Simon Guinot <simon.guinot@sequanux.org>");
 MODULE_LICENSE("GPL");