gpio: it87: add support for IT8772F Super I/O.

From the datasheet, the GPIO interface is identical to IT8728 (same
description), so just add it to the same case as the other chip.

Signed-off-by: Diego Elio Pettenò <flameeyes@flameeyes.eu>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

diff --git a/drivers/gpio/gpio-it87.c b/drivers/gpio/gpio-it87.c
index 45d29e4..d43d0a2 100644 (file)
--- a/drivers/gpio/gpio-it87.c
+++ b/drivers/gpio/gpio-it87.c
@@ -2,6 +2,7 @@
  *  GPIO interface for IT87xx Super I/O chips
  *
  *  Author: Diego Elio Pettenò <flameeyes@flameeyes.eu>
+ *  Copyright (c) 2017 Google, Inc.
  *
  *  Based on it87_wdt.c     by Oliver Schuster
  *           gpio-it8761e.c by Denis Turischev
@@ -39,6 +40,7 @@
 #define IT8728_ID      0x8728
 #define IT8732_ID      0x8732
 #define IT8761_ID      0x8761
+#define IT8772_ID      0x8772
 
 /* IO Ports */
 #define REG            0x2e
@@ -314,6 +316,7 @@ static int __init it87_gpio_init(void)
                break;
        case IT8728_ID:
        case IT8732_ID:
+       case IT8772_ID:
                gpio_ba_reg = 0x62;
                it87_gpio->io_size = 8;
                it87_gpio->output_base = 0xc8;