samv7: fix compilation error when only DAC1 is configured

The function call dac_txdone(&g_dac1dev) was not contained in ifdef
section. This was cousing compilation error if only DAC1 was configured
as the structure g_dac1dev is defined only if DAC0 is used.

This commit fixes the error and ensures the function is called only if
corresponding DAC is configured.

Signed-off-by: Michal Lenc <[email protected]>

Author: michallenc

arch/arm/src/samv7/sam_dac.c

@@ -189,20 +189,23 @@ static struct sam_dac_s g_dacmodule;
 
 static int dac_interrupt(int irq, void *context, void *arg)
 {
-#ifdef CONFIG_SAMV7_DAC1
   uint32_t status;
 
   status = getreg32(SAM_DACC_ISR) & getreg32(SAM_DACC_IMR);
-  if (status & DACC_INT_TXRDY1)
-    {
-      dac_txdone(&g_dac2dev);
-    }
 
+#ifdef CONFIG_SAMV7_DAC0
   if (status & DACC_INT_TXRDY0)
-#endif
     {
       dac_txdone(&g_dac1dev);
     }
+#endif
+
+#ifdef CONFIG_SAMV7_DAC1
+  if (status & DACC_INT_TXRDY1)
+    {
+      dac_txdone(&g_dac2dev);
+    }
+#endif
 
   return OK;
 }