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gpio: it87: Add support for IT8613
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This was tested on actual hardware and found to work fine, but currently
the official specifications of this chip could not be obtained to
confirm the numbers.

Signed-off-by: Leonid Bloch <lbloch@janustech.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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Leonid Bloch authored and Linus Walleij committed Aug 10, 2018
1 parent 6288520 commit a5ec96d
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Showing 2 changed files with 11 additions and 1 deletion.
3 changes: 2 additions & 1 deletion drivers/gpio/Kconfig
Original file line number Diff line number Diff line change
Expand Up @@ -693,7 +693,8 @@ config GPIO_IT87
Say yes here to support GPIO functionality of IT87xx Super I/O chips.

This driver is tested with ITE IT8728 and IT8732 Super I/O chips, and
supports the IT8761E, IT8620E and IT8628E Super I/O chip as well.
supports the IT8761E, IT8613, IT8620E, and IT8628E Super I/O chips as
well.

To compile this driver as a module, choose M here: the module will
be called gpio_it87
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9 changes: 9 additions & 0 deletions drivers/gpio/gpio-it87.c
Original file line number Diff line number Diff line change
Expand Up @@ -35,6 +35,7 @@

/* Chip Id numbers */
#define NO_DEV_ID 0xffff
#define IT8613_ID 0x8613
#define IT8620_ID 0x8620
#define IT8628_ID 0x8628
#define IT8718_ID 0x8718
Expand Down Expand Up @@ -308,6 +309,14 @@ static int __init it87_gpio_init(void)
it87_gpio->chip = it87_template_chip;

switch (chip_type) {
case IT8613_ID:
gpio_ba_reg = 0x62;
it87_gpio->io_size = 8; /* it8613 only needs 6, use 8 for alignment */
it87_gpio->output_base = 0xc8;
it87_gpio->simple_base = 0xc0;
it87_gpio->simple_size = 6;
it87_gpio->chip.ngpio = 64; /* has 48, use 64 for convenient calc */
break;
case IT8620_ID:
case IT8628_ID:
gpio_ba_reg = 0x62;
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