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gpio: it87: Add support for IT8613 

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>
This commit is contained in:
Leonid Bloch 2018-08-09 01:26:36 +03:00 committed by Linus Walleij
parent 62885203f7
commit a5ec96ddfd
2 changed files with 11 additions and 1 deletions
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3
drivers/gpio/Kconfig
View File

@ -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

9
drivers/gpio/gpio-it87.c
View File

@ -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
@ -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;