DMAENGINE: Remove stedma40_set_psize and pre_transfer hook in ste_dma40
Remove obsolete pre_transfer hook in stedma40_chan_cfg. The
intent of this hook is merely to handle burst size
compensation for ux500 variant MMCI. Remove obsolete stedma40_set_psize
since it is only called from pre_transfer. DMAEngine device_control
replaces the functionality of stedma40_set_psize.
Signed-off-by: Per Forlin <per.forlin@stericsson.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
diff --git a/drivers/dma/ste_dma40.c b/drivers/dma/ste_dma40.c
index ad8d6df..662d7e3 100644
--- a/drivers/dma/ste_dma40.c
+++ b/drivers/dma/ste_dma40.c
@@ -1,6 +1,6 @@
/*
* Copyright (C) ST-Ericsson SA 2007-2010
- * Author: Per Friden <per.friden@stericsson.com> for ST-Ericsson
+ * Author: Per Forlin <per.forlin@stericsson.com> for ST-Ericsson
* Author: Jonas Aaberg <jonas.aberg@stericsson.com> for ST-Ericsson
* License terms: GNU General Public License (GPL) version 2
*/
@@ -1593,51 +1593,6 @@
return bytes_left;
}
-/* Public DMA functions in addition to the DMA engine framework */
-
-int stedma40_set_psize(struct dma_chan *chan,
- int src_psize,
- int dst_psize)
-{
- struct d40_chan *d40c =
- container_of(chan, struct d40_chan, chan);
- unsigned long flags;
-
- spin_lock_irqsave(&d40c->lock, flags);
-
- if (d40c->log_num != D40_PHY_CHAN) {
- d40c->log_def.lcsp1 &= ~D40_MEM_LCSP1_SCFG_PSIZE_MASK;
- d40c->log_def.lcsp3 &= ~D40_MEM_LCSP1_SCFG_PSIZE_MASK;
- d40c->log_def.lcsp1 |= src_psize <<
- D40_MEM_LCSP1_SCFG_PSIZE_POS;
- d40c->log_def.lcsp3 |= dst_psize <<
- D40_MEM_LCSP1_SCFG_PSIZE_POS;
- goto out;
- }
-
- if (src_psize == STEDMA40_PSIZE_PHY_1)
- d40c->src_def_cfg &= ~(1 << D40_SREG_CFG_PHY_PEN_POS);
- else {
- d40c->src_def_cfg |= 1 << D40_SREG_CFG_PHY_PEN_POS;
- d40c->src_def_cfg &= ~(STEDMA40_PSIZE_PHY_16 <<
- D40_SREG_CFG_PSIZE_POS);
- d40c->src_def_cfg |= src_psize << D40_SREG_CFG_PSIZE_POS;
- }
-
- if (dst_psize == STEDMA40_PSIZE_PHY_1)
- d40c->dst_def_cfg &= ~(1 << D40_SREG_CFG_PHY_PEN_POS);
- else {
- d40c->dst_def_cfg |= 1 << D40_SREG_CFG_PHY_PEN_POS;
- d40c->dst_def_cfg &= ~(STEDMA40_PSIZE_PHY_16 <<
- D40_SREG_CFG_PSIZE_POS);
- d40c->dst_def_cfg |= dst_psize << D40_SREG_CFG_PSIZE_POS;
- }
-out:
- spin_unlock_irqrestore(&d40c->lock, flags);
- return 0;
-}
-EXPORT_SYMBOL(stedma40_set_psize);
-
struct dma_async_tx_descriptor *stedma40_memcpy_sg(struct dma_chan *chan,
struct scatterlist *sgl_dst,
struct scatterlist *sgl_src,
@@ -2075,11 +2030,6 @@
return ERR_PTR(-EINVAL);
}
- if (d40c->dma_cfg.pre_transfer)
- d40c->dma_cfg.pre_transfer(chan,
- d40c->dma_cfg.pre_transfer_data,
- sg_dma_len(sgl));
-
spin_lock_irqsave(&d40c->lock, flags);
d40d = d40_desc_get(d40c);
