Merge tag 'tegra-for-3.7-dmaengine' of git://git.kernel.org/pub/scm/linux/kernel/git/swarren/linux-tegra into next/cleanup

ARM: tegra: switch to dmaengine

The Tegra code-base has contained both a legacy DMA and a dmaengine
driver since v3.6-rcX. This series flips Tegra's defconfig to enable
dmaengine rather than the legacy driver, and removes the legacy driver
and all client code.

* tag 'tegra-for-3.7-dmaengine' of git://git.kernel.org/pub/scm/linux/kernel/git/swarren/linux-tegra:
  ASoC: tegra: remove support of legacy DMA driver based access
  spi: tegra: remove support of legacy DMA driver based access
  ARM: tegra: apbio: remove support of legacy DMA driver based access
  ARM: tegra: dma: remove legacy APB DMA driver
  ARM: tegra: config: enable dmaengine based APB DMA driver
  + sync to 3.6-rc6

1 files changed, 0 insertions, 97 deletions

diff --git a/arch/arm/mach-tegra/include/mach/dma.h b/arch/arm/mach-tegra/include/mach/dma.h
index 9077092812c0..3081cc6dda3b 100644
--- a/arch/arm/mach-tegra/include/mach/dma.h
+++ b/arch/arm/mach-tegra/include/mach/dma.h
@@ -51,101 +51,4 @@
 #define TEGRA_DMA_REQ_SEL_OWR			25
 #define TEGRA_DMA_REQ_SEL_INVALID		31
 
-struct tegra_dma_req;
-struct tegra_dma_channel;
-
-enum tegra_dma_mode {
-	TEGRA_DMA_SHARED = 1,
-	TEGRA_DMA_MODE_CONTINOUS = 2,
-	TEGRA_DMA_MODE_ONESHOT = 4,
-};
-
-enum tegra_dma_req_error {
-	TEGRA_DMA_REQ_SUCCESS = 0,
-	TEGRA_DMA_REQ_ERROR_ABORTED,
-	TEGRA_DMA_REQ_INFLIGHT,
-};
-
-enum tegra_dma_req_buff_status {
-	TEGRA_DMA_REQ_BUF_STATUS_EMPTY = 0,
-	TEGRA_DMA_REQ_BUF_STATUS_HALF_FULL,
-	TEGRA_DMA_REQ_BUF_STATUS_FULL,
-};
-
-struct tegra_dma_req {
-	struct list_head node;
-	unsigned int modid;
-	int instance;
-
-	/* Called when the req is complete and from the DMA ISR context.
-	 * When this is called the req structure is no longer queued by
-	 * the DMA channel.
-	 *
-	 * State of the DMA depends on the number of req it has. If there are
-	 * no DMA requests queued up, then it will STOP the DMA. It there are
-	 * more requests in the DMA, then it will queue the next request.
-	 */
-	void (*complete)(struct tegra_dma_req *req);
-
-	/*  This is a called from the DMA ISR context when the DMA is still in
-	 *  progress and is actively filling same buffer.
-	 *
-	 *  In case of continuous mode receive, this threshold is 1/2 the buffer
-	 *  size. In other cases, this will not even be called as there is no
-	 *  hardware support for it.
-	 *
-	 * In the case of continuous mode receive, if there is next req already
-	 * queued, DMA programs the HW to use that req when this req is
-	 * completed. If there is no "next req" queued, then DMA ISR doesn't do
-	 * anything before calling this callback.
-	 *
-	 *	This is mainly used by the cases, where the clients has queued
-	 *	only one req and want to get some sort of DMA threshold
-	 *	callback to program the next buffer.
-	 *
-	 */
-	void (*threshold)(struct tegra_dma_req *req);
-
-	/* 1 to copy to memory.
-	 * 0 to copy from the memory to device FIFO */
-	int to_memory;
-
-	void *virt_addr;
-
-	unsigned long source_addr;
-	unsigned long dest_addr;
-	unsigned long dest_wrap;
-	unsigned long source_wrap;
-	unsigned long source_bus_width;
-	unsigned long dest_bus_width;
-	unsigned long req_sel;
-	unsigned int size;
-
-	/* Updated by the DMA driver on the conpletion of the request. */
-	int bytes_transferred;
-	int status;
-
-	/* DMA completion tracking information */
-	int buffer_status;
-
-	/* Client specific data */
-	void *dev;
-};
-
-int tegra_dma_enqueue_req(struct tegra_dma_channel *ch,
-	struct tegra_dma_req *req);
-int tegra_dma_dequeue_req(struct tegra_dma_channel *ch,
-	struct tegra_dma_req *req);
-void tegra_dma_dequeue(struct tegra_dma_channel *ch);
-void tegra_dma_flush(struct tegra_dma_channel *ch);
-
-bool tegra_dma_is_req_inflight(struct tegra_dma_channel *ch,
-	struct tegra_dma_req *req);
-bool tegra_dma_is_empty(struct tegra_dma_channel *ch);
-
-struct tegra_dma_channel *tegra_dma_allocate_channel(int mode);
-void tegra_dma_free_channel(struct tegra_dma_channel *ch);
-
-int __init tegra_dma_init(void);
-
 #endif