dma: shdma: convert to the shdma base library
The shdma base library has originally been extracted from the shdma driver,
which now can be converted to actually use it.
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>
diff --git a/drivers/dma/sh/shdma.h b/drivers/dma/sh/shdma.h
index 0b1d2c1..840e47d 100644
--- a/drivers/dma/sh/shdma.h
+++ b/drivers/dma/sh/shdma.h
@@ -13,42 +13,27 @@
#ifndef __DMA_SHDMA_H
#define __DMA_SHDMA_H
+#include <linux/shdma-base.h>
#include <linux/dmaengine.h>
#include <linux/interrupt.h>
#include <linux/list.h>
-#define SH_DMAC_MAX_CHANNELS 20
-#define SH_DMA_SLAVE_NUMBER 256
-#define SH_DMA_TCR_MAX 0x00FFFFFF /* 16MB */
+#define SH_DMAE_MAX_CHANNELS 20
+#define SH_DMAE_TCR_MAX 0x00FFFFFF /* 16MB */
struct device;
-enum dmae_pm_state {
- DMAE_PM_ESTABLISHED,
- DMAE_PM_BUSY,
- DMAE_PM_PENDING,
-};
-
struct sh_dmae_chan {
- spinlock_t desc_lock; /* Descriptor operation lock */
- struct list_head ld_queue; /* Link descriptors queue */
- struct list_head ld_free; /* Link descriptors free */
- struct dma_chan common; /* DMA common channel */
- struct device *dev; /* Channel device */
- struct tasklet_struct tasklet; /* Tasklet */
- int descs_allocated; /* desc count */
+ struct shdma_chan shdma_chan;
int xmit_shift; /* log_2(bytes_per_xfer) */
- int irq;
- int id; /* Raw id of this channel */
u32 __iomem *base;
char dev_id[16]; /* unique name per DMAC of channel */
int pm_error;
- enum dmae_pm_state pm_state;
};
struct sh_dmae_device {
- struct dma_device common;
- struct sh_dmae_chan *chan[SH_DMAC_MAX_CHANNELS];
+ struct shdma_dev shdma_dev;
+ struct sh_dmae_chan *chan[SH_DMAE_MAX_CHANNELS];
struct sh_dmae_pdata *pdata;
struct list_head node;
u32 __iomem *chan_reg;
@@ -57,10 +42,21 @@
u32 chcr_ie_bit;
};
-#define to_sh_chan(chan) container_of(chan, struct sh_dmae_chan, common)
+struct sh_dmae_regs {
+ u32 sar; /* SAR / source address */
+ u32 dar; /* DAR / destination address */
+ u32 tcr; /* TCR / transfer count */
+};
+
+struct sh_dmae_desc {
+ struct sh_dmae_regs hw;
+ struct shdma_desc shdma_desc;
+};
+
+#define to_sh_chan(chan) container_of(chan, struct sh_dmae_chan, shdma_chan)
#define to_sh_desc(lh) container_of(lh, struct sh_desc, node)
#define tx_to_sh_desc(tx) container_of(tx, struct sh_desc, async_tx)
-#define to_sh_dev(chan) container_of(chan->common.device,\
- struct sh_dmae_device, common)
+#define to_sh_dev(chan) container_of(chan->shdma_chan.dma_chan.device,\
+ struct sh_dmae_device, shdma_dev.dma_dev)
#endif /* __DMA_SHDMA_H */