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-rw-r--r--drivers/platform/x86/eeepc-laptop.c16
1 files changed, 10 insertions, 6 deletions
diff --git a/drivers/platform/x86/eeepc-laptop.c b/drivers/platform/x86/eeepc-laptop.c
index e92ea4187cdf..c1758ec3c61b 100644
--- a/drivers/platform/x86/eeepc-laptop.c
+++ b/drivers/platform/x86/eeepc-laptop.c
@@ -1005,15 +1005,19 @@ static int eeepc_get_fan_rpm(void)
return high << 8 | low;
}
+#define EEEPC_EC_FAN_CTRL_BIT 0x02
+#define EEEPC_FAN_CTRL_MANUAL 1
+#define EEEPC_FAN_CTRL_AUTO 2
+
static int eeepc_get_fan_ctrl(void)
{
u8 value = 0;
ec_read(EEEPC_EC_FAN_CTRL, &value);
- if (value & 0x02)
- return 1; /* manual */
+ if (value & EEEPC_EC_FAN_CTRL_BIT)
+ return EEEPC_FAN_CTRL_MANUAL;
else
- return 2; /* automatic */
+ return EEEPC_FAN_CTRL_AUTO;
}
static void eeepc_set_fan_ctrl(int manual)
@@ -1021,10 +1025,10 @@ static void eeepc_set_fan_ctrl(int manual)
u8 value = 0;
ec_read(EEEPC_EC_FAN_CTRL, &value);
- if (manual == 1)
- value |= 0x02;
+ if (manual == EEEPC_FAN_CTRL_MANUAL)
+ value |= EEEPC_EC_FAN_CTRL_BIT;
else
- value &= ~0x02;
+ value &= ~EEEPC_EC_FAN_CTRL_BIT;
ec_write(EEEPC_EC_FAN_CTRL, value);
}