sh: intc - convert board specific landisk code

This converts the board specific interrupt code for landisk to make
use of intc (use register_intc_controller).

Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigarui.org>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

1 files changed, 35 insertions, 24 deletions

diff --git a/arch/sh/boards/mach-landisk/irq.c b/arch/sh/boards/mach-landisk/irq.c
index e79412a4049..c00ace38db3 100644
--- a/arch/sh/boards/mach-landisk/irq.c
+++ b/arch/sh/boards/mach-landisk/irq.c
@@ -1,9 +1,10 @@
 /*
- * arch/sh/boards/landisk/irq.c
+ * arch/sh/boards/mach-landisk/irq.c
  *
  * I-O DATA Device, Inc. LANDISK Support
  *
  * Copyright (C) 2005-2007 kogiidena
+ * Copyright (C) 2011 Nobuhiro Iwamatsu
  *
  * Copyright (C) 2001  Ian da Silva, Jeremy Siegel
  * Based largely on io_se.c.
@@ -12,44 +13,54 @@
  * License.  See the file "COPYING" in the main directory of this archive
  * for more details.
  */
+
 #include <linux/init.h>
 #include <linux/irq.h>
 #include <linux/interrupt.h>
 #include <linux/io.h>
 #include <mach-landisk/mach/iodata_landisk.h>
 
-static void disable_landisk_irq(struct irq_data *data)
-{
-        unsigned char mask = 0xff ^ (0x01 << (data->irq - 5));
+enum {
+        UNUSED = 0,
 
-        __raw_writeb(__raw_readb(PA_IMASK) & mask, PA_IMASK);
-}
-
-static void enable_landisk_irq(struct irq_data *data)
-{
-        unsigned char value = (0x01 << (data->irq - 5));
+        PCI_INTA, /* PCI int A */
+        PCI_INTB, /* PCI int B */
+        PCI_INTC, /* PCI int C */
+        PCI_INTD, /* PCI int D */
+        ATA,      /* ATA */
+        FATA,     /* CF */
+        POWER,    /* Power swtich */
+        BUTTON,   /* Button swtich */
+};
 
-        __raw_writeb(__raw_readb(PA_IMASK) | value, PA_IMASK);
-}
+/* Vectors for LANDISK */
+static struct intc_vect vectors_landisk[] __initdata = {
+        INTC_IRQ(PCI_INTA, IRQ_PCIINTA),
+        INTC_IRQ(PCI_INTB, IRQ_PCIINTB),
+        INTC_IRQ(PCI_INTC, IRQ_PCIINTC),
+        INTC_IRQ(PCI_INTD, IRQ_PCIINTD),
+        INTC_IRQ(ATA, IRQ_ATA),
+        INTC_IRQ(FATA, IRQ_FATA),
+        INTC_IRQ(POWER, IRQ_POWER),
+        INTC_IRQ(BUTTON, IRQ_BUTTON),
+};
 
-static struct irq_chip landisk_irq_chip __read_mostly = {
-        .name           = "LANDISK",
-        .irq_mask       = disable_landisk_irq,
-        .irq_unmask     = enable_landisk_irq,
+/* IRLMSK mask register layout for LANDISK */
+static struct intc_mask_reg mask_registers_landisk[] __initdata = {
+        { PA_IMASK, 0, 8, /* IRLMSK */
+          {  BUTTON, POWER, FATA, ATA,
+             PCI_INTD, PCI_INTC, PCI_INTB, PCI_INTA,
+          }
+        },
 };
 
+static DECLARE_INTC_DESC(intc_desc_landisk, "landisk", vectors_landisk, NULL,
+                        mask_registers_landisk, NULL, NULL);
 /*
  * Initialize IRQ setting
  */
 void __init init_landisk_IRQ(void)
 {
-        int i;
-
-        for (i = 5; i < 14; i++) {
-                disable_irq_nosync(i);
-                set_irq_chip_and_handler_name(i, &landisk_irq_chip,
-                                              handle_level_irq, "level");
-                enable_landisk_irq(irq_get_irq_data(i));
-        }
+        register_intc_controller(&intc_desc_landisk);
         __raw_writeb(0x00, PA_PWRINT_CLR);
 }