ARM: davinci: map default_queue to edma channels
Default queue is expected to be a low-priority queue.
This way, long transfers on the default queue started
by the codec engine will not cause audio defects.
Signed-off-by: Heiko Schocher <hs@denx.de>
Signed-off-by: Juha Kuikka <juha.kuikka@gmail.com>
Reported-by: Juha Kuikka <juha.kuikka@gmail.com>
Acked-by: Rajashekhara, Sudhakar <sudhakar.raj@ti.com>
Cc: linux-mmc@vger.kernel.org
Cc: davinci-linux-open-source@linux.davincidsp.com
Cc: linux-arm-kernel@lists.infradead.org
Cc: Rajashekhara, Sudhakar <sudhakar.raj@ti.com>
Cc: Ido Yariv <ido@wizery.com>
Cc: Sekhar Nori <nsekhar@ti.com>
Cc: Wolfgang Denk <wd@denx.de>
Cc: Sergei Shtylyov <sshtylyov@mvista.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
diff --git a/arch/arm/mach-davinci/dma.c b/arch/arm/mach-davinci/dma.c
index da90103..fd33919 100644
--- a/arch/arm/mach-davinci/dma.c
+++ b/arch/arm/mach-davinci/dma.c
@@ -1508,12 +1508,8 @@
goto fail;
}
- /* Everything lives on transfer controller 1 until otherwise
- * specified. This way, long transfers on the low priority queue
- * started by the codec engine will not cause audio defects.
- */
for (i = 0; i < edma_cc[j]->num_channels; i++)
- map_dmach_queue(j, i, EVENTQ_1);
+ map_dmach_queue(j, i, info[j]->default_queue);
queue_tc_mapping = info[j]->queue_tc_mapping;
queue_priority_mapping = info[j]->queue_priority_mapping;
diff --git a/arch/arm/mach-davinci/include/mach/edma.h b/arch/arm/mach-davinci/include/mach/edma.h
index 20c77f2..7e84c90 100644
--- a/arch/arm/mach-davinci/include/mach/edma.h
+++ b/arch/arm/mach-davinci/include/mach/edma.h
@@ -250,6 +250,11 @@
unsigned n_slot;
unsigned n_tc;
unsigned n_cc;
+ /*
+ * Default queue is expected to be a low-priority queue.
+ * This way, long transfers on the default queue started
+ * by the codec engine will not cause audio defects.
+ */
enum dma_event_q default_queue;
/* Resource reservation for other cores */