[Qemu-devel] [PATCH] hw/gpio/max7310.c : add the reset-pin in Max7310 and the GPIO will be reseted by the reset signal(active low) when necessary

["Zhou Yuan" <zhouyuan.fnst@cn.fujitsu.com>]

From: zhouy <zhouyuan.fnst@cn.fujitsu.com>
Date: Sun, 17 Nov 2013 09:24:38 -0500
Subject: [PATCH 4/4] add the reset-pin in Max7310 and the GPIO will be
 reseted by the reset signal(active low) when necessary


Signed-off-by: zhouy <zhouyuan.fnst@cn.fujitsu.com>
---

 qemu-master/hw/gpio/max7310.c |    8 ++++++--
 1 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/qemu-master/hw/gpio/max7310.c b/qemu-master/hw/gpio/max7310.c
index 59b2877..54df220 100644
--- a/qemu-master/hw/gpio/max7310.c
+++ b/qemu-master/hw/gpio/max7310.c
@@ -166,7 +166,11 @@ static void max7310_gpio_set(void *opaque, int line, int level)
     MAX7310State *s = (MAX7310State *) opaque;
     if (line >= ARRAY_SIZE(s->handler) || line  < 0)
         hw_error("bad GPIO line");
-
+    /* add reset-pin (active low) as the 9th gpio-in*/
+    if (line == 8 && level == 0) {
+        max7310_reset(s);
+        return;
+    }
     if (level)
         s->level |= s->direction & (1 << line);
     else
@@ -179,7 +183,7 @@ static int max7310_init(I2CSlave *i2c)
 {
     MAX7310State *s = FROM_I2C_SLAVE(MAX7310State, i2c);
 
-    qdev_init_gpio_in(&i2c->qdev, max7310_gpio_set, 8);
+    qdev_init_gpio_in(&i2c->qdev, max7310_gpio_set, 9);
     qdev_init_gpio_out(&i2c->qdev, s->handler, 8);
 
     return 0;
-- 
1.7.6

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