ARM/dmaengine: edma: Public API to use private struct pointer

Instead of relying on indexes pointing to edma private date in the global
pointer array, pass the private data pointer via the public API.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>

1 files changed, 22 insertions, 16 deletions

diff --git a/include/linux/platform_data/edma.h b/include/linux/platform_data/edma.h
index c1862423b356..466021c03169 100644
--- a/include/linux/platform_data/edma.h
+++ b/include/linux/platform_data/edma.h
@@ -92,32 +92,40 @@ enum dma_event_q {
 
 #define EDMA_MAX_CC               2
 
+struct edma;
+
+struct edma *edma_get_data(struct device *edma_dev);
+
 /* alloc/free DMA channels and their dedicated parameter RAM slots */
-int edma_alloc_channel(int channel,
+int edma_alloc_channel(struct edma *cc, int channel,
 	void (*callback)(unsigned channel, u16 ch_status, void *data),
 	void *data, enum dma_event_q);
-void edma_free_channel(unsigned channel);
+void edma_free_channel(struct edma *cc, unsigned channel);
 
 /* alloc/free parameter RAM slots */
-int edma_alloc_slot(unsigned ctlr, int slot);
-void edma_free_slot(unsigned slot);
+int edma_alloc_slot(struct edma *cc, int slot);
+void edma_free_slot(struct edma *cc, unsigned slot);
 
 /* calls that operate on part of a parameter RAM slot */
-dma_addr_t edma_get_position(unsigned slot, bool dst);
-void edma_link(unsigned from, unsigned to);
+dma_addr_t edma_get_position(struct edma *cc, unsigned slot, bool dst);
+void edma_link(struct edma *cc, unsigned from, unsigned to);
 
 /* calls that operate on an entire parameter RAM slot */
-void edma_write_slot(unsigned slot, const struct edmacc_param *params);
-void edma_read_slot(unsigned slot, struct edmacc_param *params);
+void edma_write_slot(struct edma *cc, unsigned slot,
+		     const struct edmacc_param *params);
+void edma_read_slot(struct edma *cc, unsigned slot,
+		    struct edmacc_param *params);
 
 /* channel control operations */
-int edma_start(unsigned channel);
-void edma_stop(unsigned channel);
-void edma_clean_channel(unsigned channel);
-void edma_pause(unsigned channel);
-void edma_resume(unsigned channel);
+int edma_start(struct edma *cc, unsigned channel);
+void edma_stop(struct edma *cc, unsigned channel);
+void edma_clean_channel(struct edma *cc, unsigned channel);
+void edma_pause(struct edma *cc, unsigned channel);
+void edma_resume(struct edma *cc, unsigned channel);
+int edma_trigger_channel(struct edma *cc, unsigned channel);
 
-void edma_assign_channel_eventq(unsigned channel, enum dma_event_q eventq_no);
+void edma_assign_channel_eventq(struct edma *cc, unsigned channel,
+				enum dma_event_q eventq_no);
 
 struct edma_rsv_info {
 
@@ -141,6 +149,4 @@ struct edma_soc_info {
 	const s16	(*xbar_chans)[2];
 };
 
-int edma_trigger_channel(unsigned);
-
 #endif