[MIPS] IP22: Add platform device for Indy volume buttons

Create platform device for Indy volume buttons and remove button
handling from ip22-reset.c

Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

2 files changed, 13 insertions, 49 deletions

diff --git a/arch/mips/sgi-ip22/ip22-platform.c b/arch/mips/sgi-ip22/ip22-platform.c
index d93d07a8c317..fc6df96305ed 100644
--- a/arch/mips/sgi-ip22/ip22-platform.c
+++ b/arch/mips/sgi-ip22/ip22-platform.c
@@ -182,3 +182,14 @@ static int __init sgi_hal2_devinit(void)
 }
 
 device_initcall(sgi_hal2_devinit);
+
+static int __init sgi_button_devinit(void)
+{
+        if (ip22_is_fullhouse())
+                return 0; /* full house has no volume buttons */
+
+        return IS_ERR(platform_device_register_simple("sgiindybtns",
+                                                      -1, NULL, 0));
+}
+
+device_initcall(sgi_button_devinit);
diff --git a/arch/mips/sgi-ip22/ip22-reset.c b/arch/mips/sgi-ip22/ip22-reset.c
index a435b31cf031..4ad5c3393fd3 100644
--- a/arch/mips/sgi-ip22/ip22-reset.c
+++ b/arch/mips/sgi-ip22/ip22-reset.c
@@ -39,7 +39,7 @@
 #define POWERDOWN_FREQ          (HZ / 4)
 #define PANIC_FREQ              (HZ / 8)
 
-static struct timer_list power_timer, blink_timer, debounce_timer, volume_timer;
+static struct timer_list power_timer, blink_timer, debounce_timer;
 
 #define MACHINE_PANICED         1
 #define MACHINE_SHUTTING_DOWN   2
@@ -139,36 +139,6 @@ static inline void power_button(void)
         add_timer(&power_timer);
 }
 
-void (*indy_volume_button)(int) = NULL;
-
-EXPORT_SYMBOL(indy_volume_button);
-
-static inline void volume_up_button(unsigned long data)
-{
-        del_timer(&volume_timer);
-
-        if (indy_volume_button)
-                indy_volume_button(1);
-
-        if (sgint->istat1 & SGINT_ISTAT1_PWR) {
-                volume_timer.expires = jiffies + (HZ / 100);
-                add_timer(&volume_timer);
-        }
-}
-
-static inline void volume_down_button(unsigned long data)
-{
-        del_timer(&volume_timer);
-
-        if (indy_volume_button)
-                indy_volume_button(-1);
-
-        if (sgint->istat1 & SGINT_ISTAT1_PWR) {
-                volume_timer.expires = jiffies + (HZ / 100);
-                add_timer(&volume_timer);
-        }
-}
-
 static irqreturn_t panel_int(int irq, void *dev_id)
 {
         unsigned int buttons;
@@ -190,25 +160,8 @@ static irqreturn_t panel_int(int irq, void *dev_id)
          * House. Only lowest 2 bits are used. Guiness uses upper four bits
          * for volume control". This is not true, all bits are pulled high
          * on fullhouse */
-        if (ip22_is_fullhouse() || !(buttons & SGIOC_PANEL_POWERINTR)) {
+        if (!(buttons & SGIOC_PANEL_POWERINTR))
                 power_button();
-                return IRQ_HANDLED;
-        }
-        /* TODO: mute/unmute */
-        /* Volume up button was pressed */
-        if (!(buttons & SGIOC_PANEL_VOLUPINTR)) {
-                init_timer(&volume_timer);
-                volume_timer.function = volume_up_button;
-                volume_timer.expires = jiffies + (HZ / 100);
-                add_timer(&volume_timer);
-        }
-        /* Volume down button was pressed */
-        if (!(buttons & SGIOC_PANEL_VOLDNINTR)) {
-                init_timer(&volume_timer);
-                volume_timer.function = volume_down_button;
-                volume_timer.expires = jiffies + (HZ / 100);
-                add_timer(&volume_timer);
-        }
 
         return IRQ_HANDLED;
 }