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Subject[PATCH 02/10] dmaengine: move drivers to dma_transfer_direction
Date
From: Vinod Koul <vinod.koul@linux.intel.com>

Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>
Cc: Jassi Brar <jaswinder.singh@linaro.org>
Cc: Russell King <rmk+kernel@arm.linux.org.uk>
Cc: Viresh Kumar <viresh.kumar@st.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Nicolas Ferre <nicolas.ferre@atmel.com>
Cc: Mika Westerberg <mika.westerberg@iki.fi>
Cc: H Hartley Sweeten <hartleys@visionengravers.com>
Cc: Li Yang <leoli@freescale.com>
Cc: Zhang Wei <zw@zh-kernel.org>
Cc: Sascha Hauer <s.hauer@pengutronix.de>
Cc: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Cc: Shawn Guo <shawn.guo@freescale.com>
Cc: Yong Wang <yong.y.wang@intel.com>
Cc: Tomoya MORINAGA <tomoya-linux@dsn.lapis-semi.com>
Cc: Boojin Kim <boojin.kim@samsung.com>
Cc: Barry Song <Baohua.Song@csr.com>
---
arch/arm/mach-ep93xx/include/mach/dma.h | 6 ++--
arch/arm/plat-nomadik/include/plat/ste_dma40.h | 4 +-
drivers/dma/amba-pl08x.c | 24 +++++++++++-----------
drivers/dma/at_hdmac.c | 22 ++++++++++----------
drivers/dma/coh901318.c | 12 +++++-----
drivers/dma/coh901318_lli.c | 23 ++++++++++-----------
drivers/dma/coh901318_lli.h | 4 +-
drivers/dma/dw_dmac.c | 14 ++++++------
drivers/dma/ep93xx_dma.c | 22 ++++++++++----------
drivers/dma/fsldma.c | 4 +-
drivers/dma/imx-dma.c | 10 ++++----
drivers/dma/imx-sdma.c | 10 ++++----
drivers/dma/intel_mid_dma.c | 14 ++++++------
drivers/dma/intel_mid_dma_regs.h | 2 +-
drivers/dma/ipu/ipu_idmac.c | 4 +-
drivers/dma/mxs-dma.c | 8 +++---
drivers/dma/pch_dma.c | 12 +++++-----
drivers/dma/pl330.c | 18 ++++++++--------
drivers/dma/shdma.c | 25 +++++++++++------------
drivers/dma/ste_dma40.c | 26 ++++++++++++------------
drivers/dma/timb_dma.c | 18 ++++++++--------
drivers/dma/txx9dmac.c | 12 +++++-----
include/linux/amba/pl08x.h | 4 +-
include/linux/dw_dmac.h | 2 +-
include/linux/sh_dma.h | 2 +-
25 files changed, 150 insertions(+), 152 deletions(-)
diff --git a/arch/arm/mach-ep93xx/include/mach/dma.h b/arch/arm/mach-ep93xx/include/mach/dma.h
index 46d4d87..ba4767b 100644
--- a/arch/arm/mach-ep93xx/include/mach/dma.h
+++ b/arch/arm/mach-ep93xx/include/mach/dma.h
@@ -37,7 +37,7 @@
*/
struct ep93xx_dma_data {
int port;
- enum dma_data_direction direction;
+ enum dma_transfer_direction direction;
const char *name;
};

@@ -80,14 +80,14 @@ static inline bool ep93xx_dma_chan_is_m2p(struct dma_chan *chan)
* channel supports given DMA direction. Only M2P channels have such
* limitation, for M2M channels the direction is configurable.
*/
-static inline enum dma_data_direction
+static inline enum dma_transfer_direction
ep93xx_dma_chan_direction(struct dma_chan *chan)
{
if (!ep93xx_dma_chan_is_m2p(chan))
return DMA_NONE;

/* even channels are for TX, odd for RX */
- return (chan->chan_id % 2 == 0) ? DMA_TO_DEVICE : DMA_FROM_DEVICE;
+ return (chan->chan_id % 2 == 0) ? MEM_TO_DEV : DEV_TO_MEM;
}

#endif /* __ASM_ARCH_DMA_H */
diff --git a/arch/arm/plat-nomadik/include/plat/ste_dma40.h b/arch/arm/plat-nomadik/include/plat/ste_dma40.h
index 685c787..38b041a 100644
--- a/arch/arm/plat-nomadik/include/plat/ste_dma40.h
+++ b/arch/arm/plat-nomadik/include/plat/ste_dma40.h
@@ -187,7 +187,7 @@ static inline struct
dma_async_tx_descriptor *stedma40_slave_mem(struct dma_chan *chan,
dma_addr_t addr,
unsigned int size,
- enum dma_data_direction direction,
+ enum dma_transfer_direction direction,
unsigned long flags)
{
struct scatterlist sg;
@@ -209,7 +209,7 @@ static inline struct
dma_async_tx_descriptor *stedma40_slave_mem(struct dma_chan *chan,
dma_addr_t addr,
unsigned int size,
- enum dma_data_direction direction,
+ enum dma_transfer_direction direction,
unsigned long flags)
{
return NULL;
diff --git a/drivers/dma/amba-pl08x.c b/drivers/dma/amba-pl08x.c
index b7cbd1a..36cb9af 100644
--- a/drivers/dma/amba-pl08x.c
+++ b/drivers/dma/amba-pl08x.c
@@ -882,9 +882,9 @@ static int prep_phy_channel(struct pl08x_dma_chan *plchan,
ch->signal = ret;

/* Assign the flow control signal to this channel */
- if (txd->direction == DMA_TO_DEVICE)
+ if (txd->direction == MEM_TO_DEV)
txd->ccfg |= ch->signal << PL080_CONFIG_DST_SEL_SHIFT;
- else if (txd->direction == DMA_FROM_DEVICE)
+ else if (txd->direction == DEV_TO_MEM)
txd->ccfg |= ch->signal << PL080_CONFIG_SRC_SEL_SHIFT;
}

@@ -1102,10 +1102,10 @@ static int dma_set_runtime_config(struct dma_chan *chan,

/* Transfer direction */
plchan->runtime_direction = config->direction;
- if (config->direction == DMA_TO_DEVICE) {
+ if (config->direction == MEM_TO_DEV) {
addr_width = config->dst_addr_width;
maxburst = config->dst_maxburst;
- } else if (config->direction == DMA_FROM_DEVICE) {
+ } else if (config->direction == DEV_TO_MEM) {
addr_width = config->src_addr_width;
maxburst = config->src_maxburst;
} else {
@@ -1136,7 +1136,7 @@ static int dma_set_runtime_config(struct dma_chan *chan,
cctl |= burst << PL080_CONTROL_SB_SIZE_SHIFT;
cctl |= burst << PL080_CONTROL_DB_SIZE_SHIFT;

- if (plchan->runtime_direction == DMA_FROM_DEVICE) {
+ if (plchan->runtime_direction == DEV_TO_MEM) {
plchan->src_addr = config->src_addr;
plchan->src_cctl = pl08x_cctl(cctl) | PL080_CONTROL_DST_INCR |
pl08x_select_bus(plchan->cd->periph_buses,
@@ -1152,7 +1152,7 @@ static int dma_set_runtime_config(struct dma_chan *chan,
"configured channel %s (%s) for %s, data width %d, "
"maxburst %d words, LE, CCTL=0x%08x\n",
dma_chan_name(chan), plchan->name,
- (config->direction == DMA_FROM_DEVICE) ? "RX" : "TX",
+ (config->direction == DEV_TO_MEM) ? "RX" : "TX",
addr_width,
maxburst,
cctl);
@@ -1322,7 +1322,7 @@ static struct dma_async_tx_descriptor *pl08x_prep_dma_memcpy(

static struct dma_async_tx_descriptor *pl08x_prep_slave_sg(
struct dma_chan *chan, struct scatterlist *sgl,
- unsigned int sg_len, enum dma_data_direction direction,
+ unsigned int sg_len, enum dma_transfer_direction direction,
unsigned long flags)
{
struct pl08x_dma_chan *plchan = to_pl08x_chan(chan);
@@ -1354,10 +1354,10 @@ static struct dma_async_tx_descriptor *pl08x_prep_slave_sg(
*/
txd->direction = direction;

- if (direction == DMA_TO_DEVICE) {
+ if (direction == MEM_TO_DEV) {
txd->cctl = plchan->dst_cctl;
slave_addr = plchan->dst_addr;
- } else if (direction == DMA_FROM_DEVICE) {
+ } else if (direction == DEV_TO_MEM) {
txd->cctl = plchan->src_cctl;
slave_addr = plchan->src_addr;
} else {
@@ -1368,10 +1368,10 @@ static struct dma_async_tx_descriptor *pl08x_prep_slave_sg(
}

if (plchan->cd->device_fc)
- tmp = (direction == DMA_TO_DEVICE) ? PL080_FLOW_MEM2PER_PER :
+ tmp = (direction == MEM_TO_DEV) ? PL080_FLOW_MEM2PER_PER :
PL080_FLOW_PER2MEM_PER;
else
- tmp = (direction == DMA_TO_DEVICE) ? PL080_FLOW_MEM2PER :
+ tmp = (direction == MEM_TO_DEV) ? PL080_FLOW_MEM2PER :
PL080_FLOW_PER2MEM;

txd->ccfg |= tmp << PL080_CONFIG_FLOW_CONTROL_SHIFT;
@@ -1387,7 +1387,7 @@ static struct dma_async_tx_descriptor *pl08x_prep_slave_sg(
list_add_tail(&dsg->node, &txd->dsg_list);

dsg->len = sg_dma_len(sg);
- if (direction == DMA_TO_DEVICE) {
+ if (direction == MEM_TO_DEV) {
dsg->src_addr = sg_phys(sg);
dsg->dst_addr = slave_addr;
} else {
diff --git a/drivers/dma/at_hdmac.c b/drivers/dma/at_hdmac.c
index fcfa0a8..7968a81 100644
--- a/drivers/dma/at_hdmac.c
+++ b/drivers/dma/at_hdmac.c
@@ -660,7 +660,7 @@ err_desc_get:
*/
static struct dma_async_tx_descriptor *
atc_prep_slave_sg(struct dma_chan *chan, struct scatterlist *sgl,
- unsigned int sg_len, enum dma_data_direction direction,
+ unsigned int sg_len, enum dma_transfer_direction direction,
unsigned long flags)
{
struct at_dma_chan *atchan = to_at_dma_chan(chan);
@@ -678,7 +678,7 @@ atc_prep_slave_sg(struct dma_chan *chan, struct scatterlist *sgl,

dev_vdbg(chan2dev(chan), "prep_slave_sg (%d): %s f0x%lx\n",
sg_len,
- direction == DMA_TO_DEVICE ? "TO DEVICE" : "FROM DEVICE",
+ direction == MEM_TO_DEV ? "TO DEVICE" : "FROM DEVICE",
flags);

if (unlikely(!atslave || !sg_len)) {
@@ -692,7 +692,7 @@ atc_prep_slave_sg(struct dma_chan *chan, struct scatterlist *sgl,
ctrlb = ATC_IEN;

switch (direction) {
- case DMA_TO_DEVICE:
+ case MEM_TO_DEV:
ctrla |= ATC_DST_WIDTH(reg_width);
ctrlb |= ATC_DST_ADDR_MODE_FIXED
| ATC_SRC_ADDR_MODE_INCR
@@ -725,7 +725,7 @@ atc_prep_slave_sg(struct dma_chan *chan, struct scatterlist *sgl,
total_len += len;
}
break;
- case DMA_FROM_DEVICE:
+ case DEV_TO_MEM:
ctrla |= ATC_SRC_WIDTH(reg_width);
ctrlb |= ATC_DST_ADDR_MODE_INCR
| ATC_SRC_ADDR_MODE_FIXED
@@ -787,7 +787,7 @@ err_desc_get:
*/
static int
atc_dma_cyclic_check_values(unsigned int reg_width, dma_addr_t buf_addr,
- size_t period_len, enum dma_data_direction direction)
+ size_t period_len, enum dma_transfer_direction direction)
{
if (period_len > (ATC_BTSIZE_MAX << reg_width))
goto err_out;
@@ -795,7 +795,7 @@ atc_dma_cyclic_check_values(unsigned int reg_width, dma_addr_t buf_addr,
goto err_out;
if (unlikely(buf_addr & ((1 << reg_width) - 1)))
goto err_out;
- if (unlikely(!(direction & (DMA_TO_DEVICE | DMA_FROM_DEVICE))))
+ if (unlikely(!(direction & (DEV_TO_MEM | MEM_TO_DEV))))
goto err_out;

return 0;
@@ -810,7 +810,7 @@ err_out:
static int
atc_dma_cyclic_fill_desc(struct at_dma_slave *atslave, struct at_desc *desc,
unsigned int period_index, dma_addr_t buf_addr,
- size_t period_len, enum dma_data_direction direction)
+ size_t period_len, enum dma_transfer_direction direction)
{
u32 ctrla;
unsigned int reg_width = atslave->reg_width;
@@ -822,7 +822,7 @@ atc_dma_cyclic_fill_desc(struct at_dma_slave *atslave, struct at_desc *desc,
| period_len >> reg_width;

switch (direction) {
- case DMA_TO_DEVICE:
+ case MEM_TO_DEV:
desc->lli.saddr = buf_addr + (period_len * period_index);
desc->lli.daddr = atslave->tx_reg;
desc->lli.ctrla = ctrla;
@@ -833,7 +833,7 @@ atc_dma_cyclic_fill_desc(struct at_dma_slave *atslave, struct at_desc *desc,
| ATC_DIF(AT_DMA_PER_IF);
break;

- case DMA_FROM_DEVICE:
+ case DEV_TO_MEM:
desc->lli.saddr = atslave->rx_reg;
desc->lli.daddr = buf_addr + (period_len * period_index);
desc->lli.ctrla = ctrla;
@@ -861,7 +861,7 @@ atc_dma_cyclic_fill_desc(struct at_dma_slave *atslave, struct at_desc *desc,
*/
static struct dma_async_tx_descriptor *
atc_prep_dma_cyclic(struct dma_chan *chan, dma_addr_t buf_addr, size_t buf_len,
- size_t period_len, enum dma_data_direction direction)
+ size_t period_len, enum dma_transfer_direction direction)
{
struct at_dma_chan *atchan = to_at_dma_chan(chan);
struct at_dma_slave *atslave = chan->private;
@@ -872,7 +872,7 @@ atc_prep_dma_cyclic(struct dma_chan *chan, dma_addr_t buf_addr, size_t buf_len,
unsigned int i;

dev_vdbg(chan2dev(chan), "prep_dma_cyclic: %s buf@0x%08x - %d (%d/%d)\n",
- direction == DMA_TO_DEVICE ? "TO DEVICE" : "FROM DEVICE",
+ direction == MEM_TO_DEV ? "TO DEVICE" : "FROM DEVICE",
buf_addr,
periods, buf_len, period_len);

diff --git a/drivers/dma/coh901318.c b/drivers/dma/coh901318.c
index 4234f41..ca4d6c1 100644
--- a/drivers/dma/coh901318.c
+++ b/drivers/dma/coh901318.c
@@ -39,7 +39,7 @@ struct coh901318_desc {
struct scatterlist *sg;
unsigned int sg_len;
struct coh901318_lli *lli;
- enum dma_data_direction dir;
+ enum dma_transfer_direction dir;
unsigned long flags;
u32 head_config;
u32 head_ctrl;
@@ -1034,7 +1034,7 @@ coh901318_prep_memcpy(struct dma_chan *chan, dma_addr_t dest, dma_addr_t src,

static struct dma_async_tx_descriptor *
coh901318_prep_slave_sg(struct dma_chan *chan, struct scatterlist *sgl,
- unsigned int sg_len, enum dma_data_direction direction,
+ unsigned int sg_len, enum dma_transfer_direction direction,
unsigned long flags)
{
struct coh901318_chan *cohc = to_coh901318_chan(chan);
@@ -1077,7 +1077,7 @@ coh901318_prep_slave_sg(struct dma_chan *chan, struct scatterlist *sgl,
ctrl_last |= cohc->runtime_ctrl;
ctrl |= cohc->runtime_ctrl;

- if (direction == DMA_TO_DEVICE) {
+ if (direction == MEM_TO_DEV) {
u32 tx_flags = COH901318_CX_CTRL_PRDD_SOURCE |
COH901318_CX_CTRL_SRC_ADDR_INC_ENABLE;

@@ -1085,7 +1085,7 @@ coh901318_prep_slave_sg(struct dma_chan *chan, struct scatterlist *sgl,
ctrl_chained |= tx_flags;
ctrl_last |= tx_flags;
ctrl |= tx_flags;
- } else if (direction == DMA_FROM_DEVICE) {
+ } else if (direction == DEV_TO_MEM) {
u32 rx_flags = COH901318_CX_CTRL_PRDD_DEST |
COH901318_CX_CTRL_DST_ADDR_INC_ENABLE;

@@ -1274,11 +1274,11 @@ static void coh901318_dma_set_runtimeconfig(struct dma_chan *chan,
int i = 0;

/* We only support mem to per or per to mem transfers */
- if (config->direction == DMA_FROM_DEVICE) {
+ if (config->direction == DEV_TO_MEM) {
addr = config->src_addr;
addr_width = config->src_addr_width;
maxburst = config->src_maxburst;
- } else if (config->direction == DMA_TO_DEVICE) {
+ } else if (config->direction == MEM_TO_DEV) {
addr = config->dst_addr;
addr_width = config->dst_addr_width;
maxburst = config->dst_maxburst;
diff --git a/drivers/dma/coh901318_lli.c b/drivers/dma/coh901318_lli.c
index 9f7e0e6..c895bd8 100644
--- a/drivers/dma/coh901318_lli.c
+++ b/drivers/dma/coh901318_lli.c
@@ -7,11 +7,10 @@
* Author: Per Friden <per.friden@stericsson.com>
*/

-#include <linux/dma-mapping.h>
#include <linux/spinlock.h>
-#include <linux/dmapool.h>
#include <linux/memory.h>
#include <linux/gfp.h>
+#include <linux/dmapool.h>
#include <mach/coh901318.h>

#include "coh901318_lli.h"
@@ -177,18 +176,18 @@ coh901318_lli_fill_single(struct coh901318_pool *pool,
struct coh901318_lli *lli,
dma_addr_t buf, unsigned int size,
dma_addr_t dev_addr, u32 ctrl_chained, u32 ctrl_eom,
- enum dma_data_direction dir)
+ enum dma_transfer_direction dir)
{
int s = size;
dma_addr_t src;
dma_addr_t dst;


- if (dir == DMA_TO_DEVICE) {
+ if (dir == MEM_TO_DEV) {
src = buf;
dst = dev_addr;

- } else if (dir == DMA_FROM_DEVICE) {
+ } else if (dir == DEV_TO_MEM) {

src = dev_addr;
dst = buf;
@@ -215,9 +214,9 @@ coh901318_lli_fill_single(struct coh901318_pool *pool,

lli = coh901318_lli_next(lli);

- if (dir == DMA_TO_DEVICE)
+ if (dir == MEM_TO_DEV)
src += block_size;
- else if (dir == DMA_FROM_DEVICE)
+ else if (dir == DEV_TO_MEM)
dst += block_size;
}

@@ -234,7 +233,7 @@ coh901318_lli_fill_sg(struct coh901318_pool *pool,
struct scatterlist *sgl, unsigned int nents,
dma_addr_t dev_addr, u32 ctrl_chained, u32 ctrl,
u32 ctrl_last,
- enum dma_data_direction dir, u32 ctrl_irq_mask)
+ enum dma_transfer_direction dir, u32 ctrl_irq_mask)
{
int i;
struct scatterlist *sg;
@@ -249,9 +248,9 @@ coh901318_lli_fill_sg(struct coh901318_pool *pool,

spin_lock(&pool->lock);

- if (dir == DMA_TO_DEVICE)
+ if (dir == MEM_TO_DEV)
dst = dev_addr;
- else if (dir == DMA_FROM_DEVICE)
+ else if (dir == DEV_TO_MEM)
src = dev_addr;
else
goto err;
@@ -269,7 +268,7 @@ coh901318_lli_fill_sg(struct coh901318_pool *pool,
ctrl_sg = ctrl ? ctrl : ctrl_last;


- if (dir == DMA_TO_DEVICE)
+ if (dir == MEM_TO_DEV)
/* increment source address */
src = sg_phys(sg);
else
@@ -293,7 +292,7 @@ coh901318_lli_fill_sg(struct coh901318_pool *pool,
lli->src_addr = src;
lli->dst_addr = dst;

- if (dir == DMA_FROM_DEVICE)
+ if (dir == DEV_TO_MEM)
dst += elem_size;
else
src += elem_size;
diff --git a/drivers/dma/coh901318_lli.h b/drivers/dma/coh901318_lli.h
index 7a5c809..abff371 100644
--- a/drivers/dma/coh901318_lli.h
+++ b/drivers/dma/coh901318_lli.h
@@ -97,7 +97,7 @@ coh901318_lli_fill_single(struct coh901318_pool *pool,
struct coh901318_lli *lli,
dma_addr_t buf, unsigned int size,
dma_addr_t dev_addr, u32 ctrl_chained, u32 ctrl_last,
- enum dma_data_direction dir);
+ enum dma_transfer_direction dir);

/**
* coh901318_lli_fill_single() - Prepares the lli:s for dma scatter list transfer
@@ -119,6 +119,6 @@ coh901318_lli_fill_sg(struct coh901318_pool *pool,
struct scatterlist *sg, unsigned int nents,
dma_addr_t dev_addr, u32 ctrl_chained,
u32 ctrl, u32 ctrl_last,
- enum dma_data_direction dir, u32 ctrl_irq_mask);
+ enum dma_transfer_direction dir, u32 ctrl_irq_mask);

#endif /* COH901318_LLI_H */
diff --git a/drivers/dma/dw_dmac.c b/drivers/dma/dw_dmac.c
index 9bfd6d3..ff05382 100644
--- a/drivers/dma/dw_dmac.c
+++ b/drivers/dma/dw_dmac.c
@@ -696,7 +696,7 @@ err_desc_get:

static struct dma_async_tx_descriptor *
dwc_prep_slave_sg(struct dma_chan *chan, struct scatterlist *sgl,
- unsigned int sg_len, enum dma_data_direction direction,
+ unsigned int sg_len, enum dma_transfer_direction direction,
unsigned long flags)
{
struct dw_dma_chan *dwc = to_dw_dma_chan(chan);
@@ -720,7 +720,7 @@ dwc_prep_slave_sg(struct dma_chan *chan, struct scatterlist *sgl,
prev = first = NULL;

switch (direction) {
- case DMA_TO_DEVICE:
+ case MEM_TO_DEV:
ctllo = (DWC_DEFAULT_CTLLO(chan->private)
| DWC_CTLL_DST_WIDTH(reg_width)
| DWC_CTLL_DST_FIX
@@ -777,7 +777,7 @@ slave_sg_todev_fill_desc:
goto slave_sg_todev_fill_desc;
}
break;
- case DMA_FROM_DEVICE:
+ case DEV_TO_MEM:
ctllo = (DWC_DEFAULT_CTLLO(chan->private)
| DWC_CTLL_SRC_WIDTH(reg_width)
| DWC_CTLL_DST_INC
@@ -1165,7 +1165,7 @@ EXPORT_SYMBOL(dw_dma_cyclic_stop);
*/
struct dw_cyclic_desc *dw_dma_cyclic_prep(struct dma_chan *chan,
dma_addr_t buf_addr, size_t buf_len, size_t period_len,
- enum dma_data_direction direction)
+ enum dma_transfer_direction direction)
{
struct dw_dma_chan *dwc = to_dw_dma_chan(chan);
struct dw_cyclic_desc *cdesc;
@@ -1206,7 +1206,7 @@ struct dw_cyclic_desc *dw_dma_cyclic_prep(struct dma_chan *chan,
goto out_err;
if (unlikely(buf_addr & ((1 << reg_width) - 1)))
goto out_err;
- if (unlikely(!(direction & (DMA_TO_DEVICE | DMA_FROM_DEVICE))))
+ if (unlikely(!(direction & (MEM_TO_DEV | DEV_TO_MEM))))
goto out_err;

retval = ERR_PTR(-ENOMEM);
@@ -1228,7 +1228,7 @@ struct dw_cyclic_desc *dw_dma_cyclic_prep(struct dma_chan *chan,
goto out_err_desc_get;

switch (direction) {
- case DMA_TO_DEVICE:
+ case MEM_TO_DEV:
desc->lli.dar = dws->tx_reg;
desc->lli.sar = buf_addr + (period_len * i);
desc->lli.ctllo = (DWC_DEFAULT_CTLLO(chan->private)
@@ -1239,7 +1239,7 @@ struct dw_cyclic_desc *dw_dma_cyclic_prep(struct dma_chan *chan,
| DWC_CTLL_FC(dws->fc)
| DWC_CTLL_INT_EN);
break;
- case DMA_FROM_DEVICE:
+ case DEV_TO_MEM:
desc->lli.dar = buf_addr + (period_len * i);
desc->lli.sar = dws->rx_reg;
desc->lli.ctllo = (DWC_DEFAULT_CTLLO(chan->private)
diff --git a/drivers/dma/ep93xx_dma.c b/drivers/dma/ep93xx_dma.c
index 5d7a49b..42c4698 100644
--- a/drivers/dma/ep93xx_dma.c
+++ b/drivers/dma/ep93xx_dma.c
@@ -329,7 +329,7 @@ static void m2p_fill_desc(struct ep93xx_dma_chan *edmac)
struct ep93xx_dma_desc *desc = ep93xx_dma_get_active(edmac);
u32 bus_addr;

- if (ep93xx_dma_chan_direction(&edmac->chan) == DMA_TO_DEVICE)
+ if (ep93xx_dma_chan_direction(&edmac->chan) == MEM_TO_DEV)
bus_addr = desc->src_addr;
else
bus_addr = desc->dst_addr;
@@ -442,7 +442,7 @@ static int m2m_hw_setup(struct ep93xx_dma_chan *edmac)
control = (5 << M2M_CONTROL_PWSC_SHIFT);
control |= M2M_CONTROL_NO_HDSK;

- if (data->direction == DMA_TO_DEVICE) {
+ if (data->direction == MEM_TO_DEV) {
control |= M2M_CONTROL_DAH;
control |= M2M_CONTROL_TM_TX;
control |= M2M_CONTROL_RSS_SSPTX;
@@ -462,7 +462,7 @@ static int m2m_hw_setup(struct ep93xx_dma_chan *edmac)
control |= M2M_CONTROL_RSS_IDE;
control |= M2M_CONTROL_PW_16;

- if (data->direction == DMA_TO_DEVICE) {
+ if (data->direction == MEM_TO_DEV) {
/* Worst case from the UG */
control = (3 << M2M_CONTROL_PWSC_SHIFT);
control |= M2M_CONTROL_DAH;
@@ -802,8 +802,8 @@ static int ep93xx_dma_alloc_chan_resources(struct dma_chan *chan)
switch (data->port) {
case EP93XX_DMA_SSP:
case EP93XX_DMA_IDE:
- if (data->direction != DMA_TO_DEVICE &&
- data->direction != DMA_FROM_DEVICE)
+ if (data->direction != MEM_TO_DEV &&
+ data->direction != DEV_TO_MEM)
return -EINVAL;
break;
default:
@@ -951,7 +951,7 @@ fail:
*/
static struct dma_async_tx_descriptor *
ep93xx_dma_prep_slave_sg(struct dma_chan *chan, struct scatterlist *sgl,
- unsigned int sg_len, enum dma_data_direction dir,
+ unsigned int sg_len, enum dma_transfer_direction dir,
unsigned long flags)
{
struct ep93xx_dma_chan *edmac = to_ep93xx_dma_chan(chan);
@@ -987,7 +987,7 @@ ep93xx_dma_prep_slave_sg(struct dma_chan *chan, struct scatterlist *sgl,
goto fail;
}

- if (dir == DMA_TO_DEVICE) {
+ if (dir == MEM_TO_DEV) {
desc->src_addr = sg_dma_address(sg);
desc->dst_addr = edmac->runtime_addr;
} else {
@@ -1031,7 +1031,7 @@ fail:
static struct dma_async_tx_descriptor *
ep93xx_dma_prep_dma_cyclic(struct dma_chan *chan, dma_addr_t dma_addr,
size_t buf_len, size_t period_len,
- enum dma_data_direction dir)
+ enum dma_transfer_direction dir)
{
struct ep93xx_dma_chan *edmac = to_ep93xx_dma_chan(chan);
struct ep93xx_dma_desc *desc, *first;
@@ -1064,7 +1064,7 @@ ep93xx_dma_prep_dma_cyclic(struct dma_chan *chan, dma_addr_t dma_addr,
goto fail;
}

- if (dir == DMA_TO_DEVICE) {
+ if (dir == MEM_TO_DEV) {
desc->src_addr = dma_addr + offset;
desc->dst_addr = edmac->runtime_addr;
} else {
@@ -1132,12 +1132,12 @@ static int ep93xx_dma_slave_config(struct ep93xx_dma_chan *edmac,
return -EINVAL;

switch (config->direction) {
- case DMA_FROM_DEVICE:
+ case DEV_TO_MEM:
width = config->src_addr_width;
addr = config->src_addr;
break;

- case DMA_TO_DEVICE:
+ case MEM_TO_DEV:
width = config->dst_addr_width;
addr = config->dst_addr;
break;
diff --git a/drivers/dma/fsldma.c b/drivers/dma/fsldma.c
index 8a78154..fc980f0 100644
--- a/drivers/dma/fsldma.c
+++ b/drivers/dma/fsldma.c
@@ -772,7 +772,7 @@ fail:
*/
static struct dma_async_tx_descriptor *fsl_dma_prep_slave_sg(
struct dma_chan *dchan, struct scatterlist *sgl, unsigned int sg_len,
- enum dma_data_direction direction, unsigned long flags)
+ enum dma_transfer_direction direction, unsigned long flags)
{
/*
* This operation is not supported on the Freescale DMA controller
@@ -819,7 +819,7 @@ static int fsl_dma_device_control(struct dma_chan *dchan,
return -ENXIO;

/* we set the controller burst size depending on direction */
- if (config->direction == DMA_TO_DEVICE)
+ if (config->direction == MEM_TO_DEV)
size = config->dst_addr_width * config->dst_maxburst;
else
size = config->src_addr_width * config->src_maxburst;
diff --git a/drivers/dma/imx-dma.c b/drivers/dma/imx-dma.c
index d746899..a47c312 100644
--- a/drivers/dma/imx-dma.c
+++ b/drivers/dma/imx-dma.c
@@ -106,7 +106,7 @@ static int imxdma_control(struct dma_chan *chan, enum dma_ctrl_cmd cmd,
imx_dma_disable(imxdmac->imxdma_channel);
return 0;
case DMA_SLAVE_CONFIG:
- if (dmaengine_cfg->direction == DMA_FROM_DEVICE) {
+ if (dmaengine_cfg->direction == DEV_TO_MEM) {
imxdmac->per_address = dmaengine_cfg->src_addr;
imxdmac->watermark_level = dmaengine_cfg->src_maxburst;
imxdmac->word_size = dmaengine_cfg->src_addr_width;
@@ -223,7 +223,7 @@ static void imxdma_free_chan_resources(struct dma_chan *chan)

static struct dma_async_tx_descriptor *imxdma_prep_slave_sg(
struct dma_chan *chan, struct scatterlist *sgl,
- unsigned int sg_len, enum dma_data_direction direction,
+ unsigned int sg_len, enum dma_transfer_direction direction,
unsigned long flags)
{
struct imxdma_channel *imxdmac = to_imxdma_chan(chan);
@@ -240,7 +240,7 @@ static struct dma_async_tx_descriptor *imxdma_prep_slave_sg(
dma_length += sg->length;
}

- if (direction == DMA_FROM_DEVICE)
+ if (direction == DEV_TO_MEM)
dmamode = DMA_MODE_READ;
else
dmamode = DMA_MODE_WRITE;
@@ -270,7 +270,7 @@ static struct dma_async_tx_descriptor *imxdma_prep_slave_sg(

static struct dma_async_tx_descriptor *imxdma_prep_dma_cyclic(
struct dma_chan *chan, dma_addr_t dma_addr, size_t buf_len,
- size_t period_len, enum dma_data_direction direction)
+ size_t period_len, enum dma_transfer_direction direction)
{
struct imxdma_channel *imxdmac = to_imxdma_chan(chan);
struct imxdma_engine *imxdma = imxdmac->imxdma;
@@ -316,7 +316,7 @@ static struct dma_async_tx_descriptor *imxdma_prep_dma_cyclic(
imxdmac->sg_list[periods].page_link =
((unsigned long)imxdmac->sg_list | 0x01) & ~0x02;

- if (direction == DMA_FROM_DEVICE)
+ if (direction == DEV_TO_MEM)
dmamode = DMA_MODE_READ;
else
dmamode = DMA_MODE_WRITE;
diff --git a/drivers/dma/imx-sdma.c b/drivers/dma/imx-sdma.c
index eab1fe7..ae0c9a0 100644
--- a/drivers/dma/imx-sdma.c
+++ b/drivers/dma/imx-sdma.c
@@ -246,7 +246,7 @@ struct sdma_engine;
struct sdma_channel {
struct sdma_engine *sdma;
unsigned int channel;
- enum dma_data_direction direction;
+ enum dma_transfer_direction direction;
enum sdma_peripheral_type peripheral_type;
unsigned int event_id0;
unsigned int event_id1;
@@ -649,7 +649,7 @@ static int sdma_load_context(struct sdma_channel *sdmac)
struct sdma_buffer_descriptor *bd0 = sdma->channel[0].bd;
int ret;

- if (sdmac->direction == DMA_FROM_DEVICE) {
+ if (sdmac->direction == DEV_TO_MEM) {
load_address = sdmac->pc_from_device;
} else {
load_address = sdmac->pc_to_device;
@@ -910,7 +910,7 @@ static void sdma_free_chan_resources(struct dma_chan *chan)

static struct dma_async_tx_descriptor *sdma_prep_slave_sg(
struct dma_chan *chan, struct scatterlist *sgl,
- unsigned int sg_len, enum dma_data_direction direction,
+ unsigned int sg_len, enum dma_transfer_direction direction,
unsigned long flags)
{
struct sdma_channel *sdmac = to_sdma_chan(chan);
@@ -1007,7 +1007,7 @@ err_out:

static struct dma_async_tx_descriptor *sdma_prep_dma_cyclic(
struct dma_chan *chan, dma_addr_t dma_addr, size_t buf_len,
- size_t period_len, enum dma_data_direction direction)
+ size_t period_len, enum dma_transfer_direction direction)
{
struct sdma_channel *sdmac = to_sdma_chan(chan);
struct sdma_engine *sdma = sdmac->sdma;
@@ -1092,7 +1092,7 @@ static int sdma_control(struct dma_chan *chan, enum dma_ctrl_cmd cmd,
sdma_disable_channel(sdmac);
return 0;
case DMA_SLAVE_CONFIG:
- if (dmaengine_cfg->direction == DMA_FROM_DEVICE) {
+ if (dmaengine_cfg->direction == DEV_TO_MEM) {
sdmac->per_address = dmaengine_cfg->src_addr;
sdmac->watermark_level = dmaengine_cfg->src_maxburst;
sdmac->word_size = dmaengine_cfg->src_addr_width;
diff --git a/drivers/dma/intel_mid_dma.c b/drivers/dma/intel_mid_dma.c
index cf74a66..e4f34c4 100644
--- a/drivers/dma/intel_mid_dma.c
+++ b/drivers/dma/intel_mid_dma.c
@@ -396,10 +396,10 @@ static int midc_lli_fill_sg(struct intel_mid_dma_chan *midc,
midc->dma->block_size);
/*Populate SAR and DAR values*/
sg_phy_addr = sg_phys(sg);
- if (desc->dirn == DMA_TO_DEVICE) {
+ if (desc->dirn == MEM_TO_DEV) {
lli_bloc_desc->sar = sg_phy_addr;
lli_bloc_desc->dar = mids->dma_slave.dst_addr;
- } else if (desc->dirn == DMA_FROM_DEVICE) {
+ } else if (desc->dirn == DEV_TO_MEM) {
lli_bloc_desc->sar = mids->dma_slave.src_addr;
lli_bloc_desc->dar = sg_phy_addr;
}
@@ -633,13 +633,13 @@ static struct dma_async_tx_descriptor *intel_mid_dma_prep_memcpy(
if (midc->dma->pimr_mask) {
cfg_hi.cfgx.protctl = 0x0; /*default value*/
cfg_hi.cfgx.fifo_mode = 1;
- if (mids->dma_slave.direction == DMA_TO_DEVICE) {
+ if (mids->dma_slave.direction == MEM_TO_DEV) {
cfg_hi.cfgx.src_per = 0;
if (mids->device_instance == 0)
cfg_hi.cfgx.dst_per = 3;
if (mids->device_instance == 1)
cfg_hi.cfgx.dst_per = 1;
- } else if (mids->dma_slave.direction == DMA_FROM_DEVICE) {
+ } else if (mids->dma_slave.direction == DEV_TO_MEM) {
if (mids->device_instance == 0)
cfg_hi.cfgx.src_per = 2;
if (mids->device_instance == 1)
@@ -683,11 +683,11 @@ static struct dma_async_tx_descriptor *intel_mid_dma_prep_memcpy(
ctl_lo.ctlx.sinc = 0;
ctl_lo.ctlx.dinc = 0;
} else {
- if (mids->dma_slave.direction == DMA_TO_DEVICE) {
+ if (mids->dma_slave.direction == MEM_TO_DEV) {
ctl_lo.ctlx.sinc = 0;
ctl_lo.ctlx.dinc = 2;
ctl_lo.ctlx.tt_fc = 1;
- } else if (mids->dma_slave.direction == DMA_FROM_DEVICE) {
+ } else if (mids->dma_slave.direction == DEV_TO_MEM) {
ctl_lo.ctlx.sinc = 2;
ctl_lo.ctlx.dinc = 0;
ctl_lo.ctlx.tt_fc = 2;
@@ -733,7 +733,7 @@ err_desc_get:
*/
static struct dma_async_tx_descriptor *intel_mid_dma_prep_slave_sg(
struct dma_chan *chan, struct scatterlist *sgl,
- unsigned int sg_len, enum dma_data_direction direction,
+ unsigned int sg_len, enum dma_transfer_direction direction,
unsigned long flags)
{
struct intel_mid_dma_chan *midc = NULL;
diff --git a/drivers/dma/intel_mid_dma_regs.h b/drivers/dma/intel_mid_dma_regs.h
index aea5ee8..c6de919 100644
--- a/drivers/dma/intel_mid_dma_regs.h
+++ b/drivers/dma/intel_mid_dma_regs.h
@@ -262,7 +262,7 @@ struct intel_mid_dma_desc {
unsigned int lli_length;
unsigned int current_lli;
dma_addr_t next;
- enum dma_data_direction dirn;
+ enum dma_transfer_direction dirn;
enum dma_status status;
enum dma_slave_buswidth width; /*width of DMA txn*/
enum intel_mid_dma_mode cfg_mode; /*mode configuration*/
diff --git a/drivers/dma/ipu/ipu_idmac.c b/drivers/dma/ipu/ipu_idmac.c
index 6815905..8bb6556 100644
--- a/drivers/dma/ipu/ipu_idmac.c
+++ b/drivers/dma/ipu/ipu_idmac.c
@@ -1362,7 +1362,7 @@ static void ipu_gc_tasklet(unsigned long arg)
/* Allocate and initialise a transfer descriptor. */
static struct dma_async_tx_descriptor *idmac_prep_slave_sg(struct dma_chan *chan,
struct scatterlist *sgl, unsigned int sg_len,
- enum dma_data_direction direction, unsigned long tx_flags)
+ enum dma_transfer_direction direction, unsigned long tx_flags)
{
struct idmac_channel *ichan = to_idmac_chan(chan);
struct idmac_tx_desc *desc = NULL;
@@ -1374,7 +1374,7 @@ static struct dma_async_tx_descriptor *idmac_prep_slave_sg(struct dma_chan *chan
chan->chan_id != IDMAC_IC_7)
return NULL;

- if (direction != DMA_FROM_DEVICE && direction != DMA_TO_DEVICE) {
+ if (direction != DEV_TO_MEM && direction != MEM_TO_DEV) {
dev_err(chan->device->dev, "Invalid DMA direction %d!\n", direction);
return NULL;
}
diff --git a/drivers/dma/mxs-dma.c b/drivers/dma/mxs-dma.c
index b4588bd..be3c613 100644
--- a/drivers/dma/mxs-dma.c
+++ b/drivers/dma/mxs-dma.c
@@ -377,7 +377,7 @@ static void mxs_dma_free_chan_resources(struct dma_chan *chan)

static struct dma_async_tx_descriptor *mxs_dma_prep_slave_sg(
struct dma_chan *chan, struct scatterlist *sgl,
- unsigned int sg_len, enum dma_data_direction direction,
+ unsigned int sg_len, enum dma_transfer_direction direction,
unsigned long append)
{
struct mxs_dma_chan *mxs_chan = to_mxs_dma_chan(chan);
@@ -450,7 +450,7 @@ static struct dma_async_tx_descriptor *mxs_dma_prep_slave_sg(
ccw->bits |= CCW_CHAIN;
ccw->bits |= CCW_HALT_ON_TERM;
ccw->bits |= CCW_TERM_FLUSH;
- ccw->bits |= BF_CCW(direction == DMA_FROM_DEVICE ?
+ ccw->bits |= BF_CCW(direction == DEV_TO_MEM ?
MXS_DMA_CMD_WRITE : MXS_DMA_CMD_READ,
COMMAND);

@@ -472,7 +472,7 @@ err_out:

static struct dma_async_tx_descriptor *mxs_dma_prep_dma_cyclic(
struct dma_chan *chan, dma_addr_t dma_addr, size_t buf_len,
- size_t period_len, enum dma_data_direction direction)
+ size_t period_len, enum dma_transfer_direction direction)
{
struct mxs_dma_chan *mxs_chan = to_mxs_dma_chan(chan);
struct mxs_dma_engine *mxs_dma = mxs_chan->mxs_dma;
@@ -515,7 +515,7 @@ static struct dma_async_tx_descriptor *mxs_dma_prep_dma_cyclic(
ccw->bits |= CCW_IRQ;
ccw->bits |= CCW_HALT_ON_TERM;
ccw->bits |= CCW_TERM_FLUSH;
- ccw->bits |= BF_CCW(direction == DMA_FROM_DEVICE ?
+ ccw->bits |= BF_CCW(direction == DEV_TO_MEM ?
MXS_DMA_CMD_WRITE : MXS_DMA_CMD_READ, COMMAND);

dma_addr += period_len;
diff --git a/drivers/dma/pch_dma.c b/drivers/dma/pch_dma.c
index a6d0e3d..cd35e59 100644
--- a/drivers/dma/pch_dma.c
+++ b/drivers/dma/pch_dma.c
@@ -99,7 +99,7 @@ struct pch_dma_desc {
struct pch_dma_chan {
struct dma_chan chan;
void __iomem *membase;
- enum dma_data_direction dir;
+ enum dma_transfer_direction dir;
struct tasklet_struct tasklet;
unsigned long err_status;

@@ -224,7 +224,7 @@ static void pdc_set_dir(struct dma_chan *chan)
mask_ctl = DMA_MASK_CTL0_MODE & ~(DMA_CTL0_MODE_MASK_BITS <<
(DMA_CTL0_BITS_PER_CH * chan->chan_id));
val &= mask_mode;
- if (pd_chan->dir == DMA_TO_DEVICE)
+ if (pd_chan->dir == MEM_TO_DEV)
val |= 0x1 << (DMA_CTL0_BITS_PER_CH * chan->chan_id +
DMA_CTL0_DIR_SHIFT_BITS);
else
@@ -242,7 +242,7 @@ static void pdc_set_dir(struct dma_chan *chan)
mask_ctl = DMA_MASK_CTL2_MODE & ~(DMA_CTL0_MODE_MASK_BITS <<
(DMA_CTL0_BITS_PER_CH * ch));
val &= mask_mode;
- if (pd_chan->dir == DMA_TO_DEVICE)
+ if (pd_chan->dir == MEM_TO_DEV)
val |= 0x1 << (DMA_CTL0_BITS_PER_CH * ch +
DMA_CTL0_DIR_SHIFT_BITS);
else
@@ -607,7 +607,7 @@ static void pd_issue_pending(struct dma_chan *chan)

static struct dma_async_tx_descriptor *pd_prep_slave_sg(struct dma_chan *chan,
struct scatterlist *sgl, unsigned int sg_len,
- enum dma_data_direction direction, unsigned long flags)
+ enum dma_transfer_direction direction, unsigned long flags)
{
struct pch_dma_chan *pd_chan = to_pd_chan(chan);
struct pch_dma_slave *pd_slave = chan->private;
@@ -623,9 +623,9 @@ static struct dma_async_tx_descriptor *pd_prep_slave_sg(struct dma_chan *chan,
return NULL;
}

- if (direction == DMA_FROM_DEVICE)
+ if (direction == DEV_TO_MEM)
reg = pd_slave->rx_reg;
- else if (direction == DMA_TO_DEVICE)
+ else if (direction == MEM_TO_DEV)
reg = pd_slave->tx_reg;
else
return NULL;
diff --git a/drivers/dma/pl330.c b/drivers/dma/pl330.c
index 5710414..91e8d1f 100644
--- a/drivers/dma/pl330.c
+++ b/drivers/dma/pl330.c
@@ -320,14 +320,14 @@ static int pl330_control(struct dma_chan *chan, enum dma_ctrl_cmd cmd, unsigned
case DMA_SLAVE_CONFIG:
slave_config = (struct dma_slave_config *)arg;

- if (slave_config->direction == DMA_TO_DEVICE) {
+ if (slave_config->direction == MEM_TO_DEV) {
if (slave_config->dst_addr)
pch->fifo_addr = slave_config->dst_addr;
if (slave_config->dst_addr_width)
pch->burst_sz = __ffs(slave_config->dst_addr_width);
if (slave_config->dst_maxburst)
pch->burst_len = slave_config->dst_maxburst;
- } else if (slave_config->direction == DMA_FROM_DEVICE) {
+ } else if (slave_config->direction == DEV_TO_MEM) {
if (slave_config->src_addr)
pch->fifo_addr = slave_config->src_addr;
if (slave_config->src_addr_width)
@@ -597,7 +597,7 @@ static inline int get_burst_len(struct dma_pl330_desc *desc, size_t len)

static struct dma_async_tx_descriptor *pl330_prep_dma_cyclic(
struct dma_chan *chan, dma_addr_t dma_addr, size_t len,
- size_t period_len, enum dma_data_direction direction)
+ size_t period_len, enum dma_transfer_direction direction)
{
struct dma_pl330_desc *desc;
struct dma_pl330_chan *pch = to_pchan(chan);
@@ -612,13 +612,13 @@ static struct dma_async_tx_descriptor *pl330_prep_dma_cyclic(
}

switch (direction) {
- case DMA_TO_DEVICE:
+ case MEM_TO_DEV:
desc->rqcfg.src_inc = 1;
desc->rqcfg.dst_inc = 0;
src = dma_addr;
dst = pch->fifo_addr;
break;
- case DMA_FROM_DEVICE:
+ case DEV_TO_MEM:
desc->rqcfg.src_inc = 0;
desc->rqcfg.dst_inc = 1;
src = pch->fifo_addr;
@@ -687,7 +687,7 @@ pl330_prep_dma_memcpy(struct dma_chan *chan, dma_addr_t dst,

static struct dma_async_tx_descriptor *
pl330_prep_slave_sg(struct dma_chan *chan, struct scatterlist *sgl,
- unsigned int sg_len, enum dma_data_direction direction,
+ unsigned int sg_len, enum dma_transfer_direction direction,
unsigned long flg)
{
struct dma_pl330_desc *first, *desc = NULL;
@@ -702,9 +702,9 @@ pl330_prep_slave_sg(struct dma_chan *chan, struct scatterlist *sgl,
return NULL;

/* Make sure the direction is consistent */
- if ((direction == DMA_TO_DEVICE &&
+ if ((direction == MEM_TO_DEV &&
peri->rqtype != MEMTODEV) ||
- (direction == DMA_FROM_DEVICE &&
+ (direction == DEV_TO_MEM &&
peri->rqtype != DEVTOMEM)) {
dev_err(pch->dmac->pif.dev, "%s:%d Invalid Direction\n",
__func__, __LINE__);
@@ -747,7 +747,7 @@ pl330_prep_slave_sg(struct dma_chan *chan, struct scatterlist *sgl,
else
list_add_tail(&desc->node, &first->node);

- if (direction == DMA_TO_DEVICE) {
+ if (direction == MEM_TO_DEV) {
desc->rqcfg.src_inc = 1;
desc->rqcfg.dst_inc = 0;
fill_px(&desc->px,
diff --git a/drivers/dma/shdma.c b/drivers/dma/shdma.c
index 81809c2..cab7d3e 100644
--- a/drivers/dma/shdma.c
+++ b/drivers/dma/shdma.c
@@ -23,7 +23,6 @@
#include <linux/interrupt.h>
#include <linux/dmaengine.h>
#include <linux/delay.h>
-#include <linux/dma-mapping.h>
#include <linux/platform_device.h>
#include <linux/pm_runtime.h>
#include <linux/sh_dma.h>
@@ -479,19 +478,19 @@ static void sh_dmae_free_chan_resources(struct dma_chan *chan)
* @sh_chan: DMA channel
* @flags: DMA transfer flags
* @dest: destination DMA address, incremented when direction equals
- * DMA_FROM_DEVICE or DMA_BIDIRECTIONAL
+ * DEV_TO_MEM
* @src: source DMA address, incremented when direction equals
- * DMA_TO_DEVICE or DMA_BIDIRECTIONAL
+ * MEM_TO_DEV
* @len: DMA transfer length
* @first: if NULL, set to the current descriptor and cookie set to -EBUSY
* @direction: needed for slave DMA to decide which address to keep constant,
- * equals DMA_BIDIRECTIONAL for MEMCPY
+ * equals MEM_TO_MEM for MEMCPY
* Returns 0 or an error
* Locks: called with desc_lock held
*/
static struct sh_desc *sh_dmae_add_desc(struct sh_dmae_chan *sh_chan,
unsigned long flags, dma_addr_t *dest, dma_addr_t *src, size_t *len,
- struct sh_desc **first, enum dma_data_direction direction)
+ struct sh_desc **first, enum dma_transfer_direction direction)
{
struct sh_desc *new;
size_t copy_size;
@@ -531,9 +530,9 @@ static struct sh_desc *sh_dmae_add_desc(struct sh_dmae_chan *sh_chan,
new->direction = direction;

*len -= copy_size;
- if (direction == DMA_BIDIRECTIONAL || direction == DMA_TO_DEVICE)
+ if (direction == MEM_TO_MEM || direction == MEM_TO_DEV)
*src += copy_size;
- if (direction == DMA_BIDIRECTIONAL || direction == DMA_FROM_DEVICE)
+ if (direction == MEM_TO_MEM || direction == DEV_TO_MEM)
*dest += copy_size;

return new;
@@ -546,12 +545,12 @@ static struct sh_desc *sh_dmae_add_desc(struct sh_dmae_chan *sh_chan,
* converted to scatter-gather to guarantee consistent locking and a correct
* list manipulation. For slave DMA direction carries the usual meaning, and,
* logically, the SG list is RAM and the addr variable contains slave address,
- * e.g., the FIFO I/O register. For MEMCPY direction equals DMA_BIDIRECTIONAL
+ * e.g., the FIFO I/O register. For MEMCPY direction equals MEM_TO_MEM
* and the SG list contains only one element and points at the source buffer.
*/
static struct dma_async_tx_descriptor *sh_dmae_prep_sg(struct sh_dmae_chan *sh_chan,
struct scatterlist *sgl, unsigned int sg_len, dma_addr_t *addr,
- enum dma_data_direction direction, unsigned long flags)
+ enum dma_transfer_direction direction, unsigned long flags)
{
struct scatterlist *sg;
struct sh_desc *first = NULL, *new = NULL /* compiler... */;
@@ -592,7 +591,7 @@ static struct dma_async_tx_descriptor *sh_dmae_prep_sg(struct sh_dmae_chan *sh_c
dev_dbg(sh_chan->dev, "Add SG #%d@%p[%d], dma %llx\n",
i, sg, len, (unsigned long long)sg_addr);

- if (direction == DMA_FROM_DEVICE)
+ if (direction == DEV_TO_MEM)
new = sh_dmae_add_desc(sh_chan, flags,
&sg_addr, addr, &len, &first,
direction);
@@ -646,13 +645,13 @@ static struct dma_async_tx_descriptor *sh_dmae_prep_memcpy(
sg_dma_address(&sg) = dma_src;
sg_dma_len(&sg) = len;

- return sh_dmae_prep_sg(sh_chan, &sg, 1, &dma_dest, DMA_BIDIRECTIONAL,
+ return sh_dmae_prep_sg(sh_chan, &sg, 1, &dma_dest, MEM_TO_MEM,
flags);
}

static struct dma_async_tx_descriptor *sh_dmae_prep_slave_sg(
struct dma_chan *chan, struct scatterlist *sgl, unsigned int sg_len,
- enum dma_data_direction direction, unsigned long flags)
+ enum dma_transfer_direction direction, unsigned long flags)
{
struct sh_dmae_slave *param;
struct sh_dmae_chan *sh_chan;
@@ -996,7 +995,7 @@ static void dmae_do_tasklet(unsigned long data)
spin_lock_irq(&sh_chan->desc_lock);
list_for_each_entry(desc, &sh_chan->ld_queue, node) {
if (desc->mark == DESC_SUBMITTED &&
- ((desc->direction == DMA_FROM_DEVICE &&
+ ((desc->direction == DEV_TO_MEM &&
(desc->hw.dar + desc->hw.tcr) == dar_buf) ||
(desc->hw.sar + desc->hw.tcr) == sar_buf)) {
dev_dbg(sh_chan->dev, "done #%d@%p dst %u\n",
diff --git a/drivers/dma/ste_dma40.c b/drivers/dma/ste_dma40.c
index 467e4dc..1e600e2 100644
--- a/drivers/dma/ste_dma40.c
+++ b/drivers/dma/ste_dma40.c
@@ -216,7 +216,7 @@ struct d40_chan {
struct d40_log_lli_full *lcpa;
/* Runtime reconfiguration */
dma_addr_t runtime_addr;
- enum dma_data_direction runtime_direction;
+ enum dma_transfer_direction runtime_direction;
};

/**
@@ -1854,7 +1854,7 @@ err:
}

static dma_addr_t
-d40_get_dev_addr(struct d40_chan *chan, enum dma_data_direction direction)
+d40_get_dev_addr(struct d40_chan *chan, enum dma_transfer_direction direction)
{
struct stedma40_platform_data *plat = chan->base->plat_data;
struct stedma40_chan_cfg *cfg = &chan->dma_cfg;
@@ -1863,9 +1863,9 @@ d40_get_dev_addr(struct d40_chan *chan, enum dma_data_direction direction)
if (chan->runtime_addr)
return chan->runtime_addr;

- if (direction == DMA_FROM_DEVICE)
+ if (direction == DEV_TO_MEM)
addr = plat->dev_rx[cfg->src_dev_type];
- else if (direction == DMA_TO_DEVICE)
+ else if (direction == MEM_TO_DEV)
addr = plat->dev_tx[cfg->dst_dev_type];

return addr;
@@ -1874,7 +1874,7 @@ d40_get_dev_addr(struct d40_chan *chan, enum dma_data_direction direction)
static struct dma_async_tx_descriptor *
d40_prep_sg(struct dma_chan *dchan, struct scatterlist *sg_src,
struct scatterlist *sg_dst, unsigned int sg_len,
- enum dma_data_direction direction, unsigned long dma_flags)
+ enum dma_transfer_direction direction, unsigned long dma_flags)
{
struct d40_chan *chan = container_of(dchan, struct d40_chan, chan);
dma_addr_t src_dev_addr = 0;
@@ -1901,9 +1901,9 @@ d40_prep_sg(struct dma_chan *dchan, struct scatterlist *sg_src,
if (direction != DMA_NONE) {
dma_addr_t dev_addr = d40_get_dev_addr(chan, direction);

- if (direction == DMA_FROM_DEVICE)
+ if (direction == DEV_TO_MEM)
src_dev_addr = dev_addr;
- else if (direction == DMA_TO_DEVICE)
+ else if (direction == MEM_TO_DEV)
dst_dev_addr = dev_addr;
}

@@ -2107,10 +2107,10 @@ d40_prep_memcpy_sg(struct dma_chan *chan,
static struct dma_async_tx_descriptor *d40_prep_slave_sg(struct dma_chan *chan,
struct scatterlist *sgl,
unsigned int sg_len,
- enum dma_data_direction direction,
+ enum dma_transfer_direction direction,
unsigned long dma_flags)
{
- if (direction != DMA_FROM_DEVICE && direction != DMA_TO_DEVICE)
+ if (direction != DEV_TO_MEM && direction != MEM_TO_DEV)
return NULL;

return d40_prep_sg(chan, sgl, sgl, sg_len, direction, dma_flags);
@@ -2119,7 +2119,7 @@ static struct dma_async_tx_descriptor *d40_prep_slave_sg(struct dma_chan *chan,
static struct dma_async_tx_descriptor *
dma40_prep_dma_cyclic(struct dma_chan *chan, dma_addr_t dma_addr,
size_t buf_len, size_t period_len,
- enum dma_data_direction direction)
+ enum dma_transfer_direction direction)
{
unsigned int periods = buf_len / period_len;
struct dma_async_tx_descriptor *txd;
@@ -2268,7 +2268,7 @@ static int d40_set_runtime_config(struct dma_chan *chan,
dst_addr_width = config->dst_addr_width;
dst_maxburst = config->dst_maxburst;

- if (config->direction == DMA_FROM_DEVICE) {
+ if (config->direction == DEV_TO_MEM) {
dma_addr_t dev_addr_rx =
d40c->base->plat_data->dev_rx[cfg->src_dev_type];

@@ -2291,7 +2291,7 @@ static int d40_set_runtime_config(struct dma_chan *chan,
if (dst_maxburst == 0)
dst_maxburst = src_maxburst;

- } else if (config->direction == DMA_TO_DEVICE) {
+ } else if (config->direction == MEM_TO_DEV) {
dma_addr_t dev_addr_tx =
d40c->base->plat_data->dev_tx[cfg->dst_dev_type];

@@ -2356,7 +2356,7 @@ static int d40_set_runtime_config(struct dma_chan *chan,
"configured channel %s for %s, data width %d/%d, "
"maxburst %d/%d elements, LE, no flow control\n",
dma_chan_name(chan),
- (config->direction == DMA_FROM_DEVICE) ? "RX" : "TX",
+ (config->direction == DEV_TO_MEM) ? "RX" : "TX",
src_addr_width, dst_addr_width,
src_maxburst, dst_maxburst);

diff --git a/drivers/dma/timb_dma.c b/drivers/dma/timb_dma.c
index a4a398f..764ae74 100644
--- a/drivers/dma/timb_dma.c
+++ b/drivers/dma/timb_dma.c
@@ -90,7 +90,7 @@ struct timb_dma_chan {
struct list_head queue;
struct list_head free_list;
unsigned int bytes_per_line;
- enum dma_data_direction direction;
+ enum dma_transfer_direction direction;
unsigned int descs; /* Descriptors to allocate */
unsigned int desc_elems; /* number of elems per descriptor */
};
@@ -235,7 +235,7 @@ static void __td_start_dma(struct timb_dma_chan *td_chan)
"td_chan: %p, chan: %d, membase: %p\n",
td_chan, td_chan->chan.chan_id, td_chan->membase);

- if (td_chan->direction == DMA_FROM_DEVICE) {
+ if (td_chan->direction == DEV_TO_MEM) {

/* descriptor address */
iowrite32(0, td_chan->membase + TIMBDMA_OFFS_RX_DHAR);
@@ -278,7 +278,7 @@ static void __td_finish(struct timb_dma_chan *td_chan)
txd->cookie);

/* make sure to stop the transfer */
- if (td_chan->direction == DMA_FROM_DEVICE)
+ if (td_chan->direction == DEV_TO_MEM)
iowrite32(0, td_chan->membase + TIMBDMA_OFFS_RX_ER);
/* Currently no support for stopping DMA transfers
else
@@ -398,7 +398,7 @@ static struct timb_dma_desc *td_alloc_init_desc(struct timb_dma_chan *td_chan)
td_desc->txd.flags = DMA_CTRL_ACK;

td_desc->txd.phys = dma_map_single(chan2dmadev(chan),
- td_desc->desc_list, td_desc->desc_list_len, DMA_TO_DEVICE);
+ td_desc->desc_list, td_desc->desc_list_len, MEM_TO_DEV);

err = dma_mapping_error(chan2dmadev(chan), td_desc->txd.phys);
if (err) {
@@ -419,7 +419,7 @@ static void td_free_desc(struct timb_dma_desc *td_desc)
{
dev_dbg(chan2dev(td_desc->txd.chan), "Freeing desc: %p\n", td_desc);
dma_unmap_single(chan2dmadev(td_desc->txd.chan), td_desc->txd.phys,
- td_desc->desc_list_len, DMA_TO_DEVICE);
+ td_desc->desc_list_len, MEM_TO_DEV);

kfree(td_desc->desc_list);
kfree(td_desc);
@@ -558,7 +558,7 @@ static void td_issue_pending(struct dma_chan *chan)

static struct dma_async_tx_descriptor *td_prep_slave_sg(struct dma_chan *chan,
struct scatterlist *sgl, unsigned int sg_len,
- enum dma_data_direction direction, unsigned long flags)
+ enum dma_transfer_direction direction, unsigned long flags)
{
struct timb_dma_chan *td_chan =
container_of(chan, struct timb_dma_chan, chan);
@@ -606,7 +606,7 @@ static struct dma_async_tx_descriptor *td_prep_slave_sg(struct dma_chan *chan,
}

dma_sync_single_for_device(chan2dmadev(chan), td_desc->txd.phys,
- td_desc->desc_list_len, DMA_TO_DEVICE);
+ td_desc->desc_list_len, MEM_TO_DEV);

return &td_desc->txd;
}
@@ -775,8 +775,8 @@ static int __devinit td_probe(struct platform_device *pdev)
td_chan->descs = pchan->descriptors;
td_chan->desc_elems = pchan->descriptor_elements;
td_chan->bytes_per_line = pchan->bytes_per_line;
- td_chan->direction = pchan->rx ? DMA_FROM_DEVICE :
- DMA_TO_DEVICE;
+ td_chan->direction = pchan->rx ? DEV_TO_MEM :
+ MEM_TO_DEV;

td_chan->membase = td->membase +
(i / 2) * TIMBDMA_INSTANCE_OFFSET +
diff --git a/drivers/dma/txx9dmac.c b/drivers/dma/txx9dmac.c
index cbd83e3..ce6e772 100644
--- a/drivers/dma/txx9dmac.c
+++ b/drivers/dma/txx9dmac.c
@@ -845,7 +845,7 @@ txx9dmac_prep_dma_memcpy(struct dma_chan *chan, dma_addr_t dest, dma_addr_t src,

static struct dma_async_tx_descriptor *
txx9dmac_prep_slave_sg(struct dma_chan *chan, struct scatterlist *sgl,
- unsigned int sg_len, enum dma_data_direction direction,
+ unsigned int sg_len, enum dma_transfer_direction direction,
unsigned long flags)
{
struct txx9dmac_chan *dc = to_txx9dmac_chan(chan);
@@ -860,9 +860,9 @@ txx9dmac_prep_slave_sg(struct dma_chan *chan, struct scatterlist *sgl,

BUG_ON(!ds || !ds->reg_width);
if (ds->tx_reg)
- BUG_ON(direction != DMA_TO_DEVICE);
+ BUG_ON(direction != MEM_TO_DEV);
else
- BUG_ON(direction != DMA_FROM_DEVICE);
+ BUG_ON(direction != DEV_TO_MEM);
if (unlikely(!sg_len))
return NULL;

@@ -882,7 +882,7 @@ txx9dmac_prep_slave_sg(struct dma_chan *chan, struct scatterlist *sgl,
mem = sg_dma_address(sg);

if (__is_dmac64(ddev)) {
- if (direction == DMA_TO_DEVICE) {
+ if (direction == MEM_TO_DEV) {
desc->hwdesc.SAR = mem;
desc->hwdesc.DAR = ds->tx_reg;
} else {
@@ -891,7 +891,7 @@ txx9dmac_prep_slave_sg(struct dma_chan *chan, struct scatterlist *sgl,
}
desc->hwdesc.CNTR = sg_dma_len(sg);
} else {
- if (direction == DMA_TO_DEVICE) {
+ if (direction == MEM_TO_DEV) {
desc->hwdesc32.SAR = mem;
desc->hwdesc32.DAR = ds->tx_reg;
} else {
@@ -900,7 +900,7 @@ txx9dmac_prep_slave_sg(struct dma_chan *chan, struct scatterlist *sgl,
}
desc->hwdesc32.CNTR = sg_dma_len(sg);
}
- if (direction == DMA_TO_DEVICE) {
+ if (direction == MEM_TO_DEV) {
sai = ds->reg_width;
dai = 0;
} else {
diff --git a/include/linux/amba/pl08x.h b/include/linux/amba/pl08x.h
index 9eabffb..033f6aa 100644
--- a/include/linux/amba/pl08x.h
+++ b/include/linux/amba/pl08x.h
@@ -134,7 +134,7 @@ struct pl08x_txd {
struct dma_async_tx_descriptor tx;
struct list_head node;
struct list_head dsg_list;
- enum dma_data_direction direction;
+ enum dma_transfer_direction direction;
dma_addr_t llis_bus;
struct pl08x_lli *llis_va;
/* Default cctl value for LLIs */
@@ -197,7 +197,7 @@ struct pl08x_dma_chan {
dma_addr_t dst_addr;
u32 src_cctl;
u32 dst_cctl;
- enum dma_data_direction runtime_direction;
+ enum dma_transfer_direction runtime_direction;
dma_cookie_t lc;
struct list_head pend_list;
struct pl08x_txd *at;
diff --git a/include/linux/dw_dmac.h b/include/linux/dw_dmac.h
index 4bfe0a2..f2c64f9 100644
--- a/include/linux/dw_dmac.h
+++ b/include/linux/dw_dmac.h
@@ -127,7 +127,7 @@ struct dw_cyclic_desc {

struct dw_cyclic_desc *dw_dma_cyclic_prep(struct dma_chan *chan,
dma_addr_t buf_addr, size_t buf_len, size_t period_len,
- enum dma_data_direction direction);
+ enum dma_transfer_direction direction);
void dw_dma_cyclic_free(struct dma_chan *chan);
int dw_dma_cyclic_start(struct dma_chan *chan);
void dw_dma_cyclic_stop(struct dma_chan *chan);
diff --git a/include/linux/sh_dma.h b/include/linux/sh_dma.h
index cb2dd11..62ef693 100644
--- a/include/linux/sh_dma.h
+++ b/include/linux/sh_dma.h
@@ -30,7 +30,7 @@ struct sh_desc {
struct sh_dmae_regs hw;
struct list_head node;
struct dma_async_tx_descriptor async_tx;
- enum dma_data_direction direction;
+ enum dma_transfer_direction direction;
dma_cookie_t cookie;
size_t partial;
int chunks;
--
1.7.0.4


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