The new API - omap_set_dma_dst_pos(int lch, int value) is added
for setting channel destination address in CPC/CDAC register
Cc: Tony Lindgren <tony@xxxxxxxxxxx>
Cc: S, Venkatraman <svenkatr@xxxxxx>
Signed-off-by: Manjunatha GK <manjugk@xxxxxx>
Signed-off-by: Govindraj R <govindraj.raja@xxxxxx>
---
arch/arm/plat-omap/dma.c | 17 +++++++++++++++++
arch/arm/plat-omap/include/plat/dma.h | 1 +
2 files changed, 18 insertions(+), 0 deletions(-)
diff --git a/arch/arm/plat-omap/dma.c b/arch/arm/plat-omap/dma.c
index 2ab224c..9a2a5c4 100644
--- a/arch/arm/plat-omap/dma.c
+++ b/arch/arm/plat-omap/dma.c
@@ -1109,6 +1109,23 @@ dma_addr_t omap_get_dma_dst_pos(int lch)
}
EXPORT_SYMBOL(omap_get_dma_dst_pos);
+/**
+ * omap_set_dma_dst_pos() - Set DMA channel destination address
+ * @arg1: lch DMA logical channel number
+ * @arg2: value Value to write into CDAC register
+ *
+ * Writes "value" into the register CPC/CDAC
+ */
+void omap_set_dma_dst_pos(int lch, int value)
+{
+ if (cpu_is_omap15xx())
+ dma_write(CPC(lch), value);
+ else
+ dma_write(CDAC(lcd), value);
+
+}
+EXPORT_SYMBOL(omap_set_dma_dst_pos);
+
int omap_get_dma_active_status(int lch)
{
return (dma_read(CCR(lch)) & OMAP_DMA_CCR_EN) != 0;
diff --git a/arch/arm/plat-omap/include/plat/dma.h b/arch/arm/plat-omap/include/plat/dma.h
index 02232ca..3b6e43e 100644
--- a/arch/arm/plat-omap/include/plat/dma.h
+++ b/arch/arm/plat-omap/include/plat/dma.h
@@ -509,6 +509,7 @@ extern int omap_set_dma_callback(int lch,
void *data);
extern dma_addr_t omap_get_dma_src_pos(int lch);
extern dma_addr_t omap_get_dma_dst_pos(int lch);
+extern void omap_set_dma_dst_pos(int lch, int value);
extern void omap_clear_dma(int lch);
extern int omap_get_dma_active_status(int lch);
extern int omap_dma_running(void);
--
1.6.0.4
--
To unsubscribe from this list: send the line "unsubscribe linux-omap" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
