[ALSA] sparc dbri removal of DBRI_NO_INTS

This patch removes define DBR_NO_INTS and all code related to
handling more than one dbri irq statuses block.

Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>

1 files changed, 8 insertions, 23 deletions

diff --git a/sound/sparc/dbri.c b/sound/sparc/dbri.c
index 652f433a3f0d..4651ff513513 100644
--- a/sound/sparc/dbri.c
+++ b/sound/sparc/dbri.c
@@ -238,12 +238,6 @@ static struct {
 #define REG9    0x24UL          /* Interrupt Queue Pointer */
 
 #define DBRI_NO_CMDS    64
-#define DBRI_NO_INTS    1       /* Note: the value of this define was
-                                 * originally 2.  The ringbuffer to store
-                                 * interrupts in dma is currently broken.
-                                 * This is a temporary fix until the ringbuffer
-                                 * is fixed.
-                                 */
 #define DBRI_INT_BLK    64
 #define DBRI_NO_DESCS   64
 #define DBRI_NO_PIPES   32
@@ -268,7 +262,7 @@ struct dbri_mem {
  */
 struct dbri_dma {
         volatile s32 cmd[DBRI_NO_CMDS]; /* Place for commands       */
-        volatile s32 intr[DBRI_NO_INTS * DBRI_INT_BLK]; /* Interrupt field  */
+        volatile s32 intr[DBRI_INT_BLK];        /* Interrupt field  */
         struct dbri_mem desc[DBRI_NO_DESCS];    /* Xmit/receive descriptors */
 };
 
@@ -741,18 +735,6 @@ static void dbri_initialize(struct snd_dbri * dbri)
         dprintk(D_GEN, "init: cmd: %p, int: %p\n",
                 &dbri->dma->cmd[0], &dbri->dma->intr[0]);
 
-        /*
-         * Initialize the interrupt ringbuffer.
-         */
-        for (n = 0; n < DBRI_NO_INTS - 1; n++) {
-                dma_addr = dbri->dma_dvma;
-                dma_addr += dbri_dma_off(intr, ((n + 1) * DBRI_INT_BLK));
-                dbri->dma->intr[n * DBRI_INT_BLK] = dma_addr;
-        }
-        dma_addr = dbri->dma_dvma + dbri_dma_off(intr, 0);
-        dbri->dma->intr[n * DBRI_INT_BLK] = dma_addr;
-        dbri->dbri_irqp = 1;
-
         /* Initialize pipes */
         for (n = 0; n < DBRI_NO_PIPES; n++)
                 dbri->pipes[n].desc = dbri->pipes[n].first_desc = -1;
@@ -765,9 +747,14 @@ static void dbri_initialize(struct snd_dbri * dbri)
         sbus_writel(tmp, dbri->regs + REG0);
 
         /*
-         * Set up the interrupt queue
+         * Initialize the interrupt ringbuffer.
          */
         dma_addr = dbri->dma_dvma + dbri_dma_off(intr, 0);
+        dbri->dma->intr[0] = dma_addr;
+        dbri->dbri_irqp = 1;
+        /*
+         * Set up the interrupt queue
+         */
         *(cmd++) = DBRI_CMD(D_IIQ, 0, 0);
         *(cmd++) = dma_addr;
 
@@ -1951,10 +1938,8 @@ static void dbri_process_interrupt_buffer(struct snd_dbri * dbri)
         while ((x = dbri->dma->intr[dbri->dbri_irqp]) != 0) {
                 dbri->dma->intr[dbri->dbri_irqp] = 0;
                 dbri->dbri_irqp++;
-                if (dbri->dbri_irqp == (DBRI_NO_INTS * DBRI_INT_BLK))
+                if (dbri->dbri_irqp == DBRI_INT_BLK)
                         dbri->dbri_irqp = 1;
-                else if ((dbri->dbri_irqp & (DBRI_INT_BLK - 1)) == 0)
-                        dbri->dbri_irqp++;
 
                 dbri_process_one_interrupt(dbri, x);
         }