Commit 661385f9 authored by Per Forlin's avatar Per Forlin Committed by Dan Williams

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: default avatarPer Forlin <per.forlin@stericsson.com>
Signed-off-by: default avatarDan Williams <dan.j.williams@intel.com>
parent a59670a4
/* /*
* Copyright (C) ST-Ericsson SA 2007-2010 * 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 * Author: Jonas Aaberg <jonas.aberg@stericsson.com> for ST-Ericsson
* License terms: GNU General Public License (GPL) version 2 * License terms: GNU General Public License (GPL) version 2
*/ */
...@@ -123,10 +123,6 @@ struct stedma40_half_channel_info { ...@@ -123,10 +123,6 @@ struct stedma40_half_channel_info {
* @dst_dev_type: Dst device type * @dst_dev_type: Dst device type
* @src_info: Parameters for dst half channel * @src_info: Parameters for dst half channel
* @dst_info: Parameters for dst half channel * @dst_info: Parameters for dst half channel
* @pre_transfer_data: Data to be passed on to the pre_transfer() function.
* @pre_transfer: Callback used if needed before preparation of transfer.
* Only called if device is set. size of bytes to transfer
* (in case of multiple element transfer size is size of the first element).
* *
* *
* This structure has to be filled by the client drivers. * This structure has to be filled by the client drivers.
...@@ -140,10 +136,6 @@ struct stedma40_chan_cfg { ...@@ -140,10 +136,6 @@ struct stedma40_chan_cfg {
int dst_dev_type; int dst_dev_type;
struct stedma40_half_channel_info src_info; struct stedma40_half_channel_info src_info;
struct stedma40_half_channel_info dst_info; struct stedma40_half_channel_info dst_info;
void *pre_transfer_data;
int (*pre_transfer) (struct dma_chan *chan,
void *data,
int size);
}; };
/** /**
...@@ -170,20 +162,6 @@ struct stedma40_platform_data { ...@@ -170,20 +162,6 @@ struct stedma40_platform_data {
int disabled_channels[STEDMA40_MAX_PHYS]; int disabled_channels[STEDMA40_MAX_PHYS];
}; };
/**
* setdma40_set_psize() - Used for changing the package size of an
* already configured dma channel.
*
* @chan: dmaengine handle
* @src_psize: new package side for src. (STEDMA40_PSIZE*)
* @src_psize: new package side for dst. (STEDMA40_PSIZE*)
*
* returns 0 on ok, otherwise negative error number.
*/
int stedma40_set_psize(struct dma_chan *chan,
int src_psize,
int dst_psize);
/** /**
* stedma40_filter() - Provides stedma40_chan_cfg to the * stedma40_filter() - Provides stedma40_chan_cfg to the
* ste_dma40 dma driver via the dmaengine framework. * ste_dma40 dma driver via the dmaengine framework.
......
/* /*
* Copyright (C) ST-Ericsson SA 2007-2010 * 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 * Author: Jonas Aaberg <jonas.aberg@stericsson.com> for ST-Ericsson
* License terms: GNU General Public License (GPL) version 2 * License terms: GNU General Public License (GPL) version 2
*/ */
...@@ -1593,51 +1593,6 @@ static u32 stedma40_residue(struct dma_chan *chan) ...@@ -1593,51 +1593,6 @@ static u32 stedma40_residue(struct dma_chan *chan)
return bytes_left; 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 dma_async_tx_descriptor *stedma40_memcpy_sg(struct dma_chan *chan,
struct scatterlist *sgl_dst, struct scatterlist *sgl_dst,
struct scatterlist *sgl_src, struct scatterlist *sgl_src,
...@@ -2075,11 +2030,6 @@ static struct dma_async_tx_descriptor *d40_prep_slave_sg(struct dma_chan *chan, ...@@ -2075,11 +2030,6 @@ static struct dma_async_tx_descriptor *d40_prep_slave_sg(struct dma_chan *chan,
return ERR_PTR(-EINVAL); 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); spin_lock_irqsave(&d40c->lock, flags);
d40d = d40_desc_get(d40c); d40d = d40_desc_get(d40c);
......
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