From: Vinod Koul <vkoul@kernel.org>
To: dmaengine@vger.kernel.org
Cc: Vinod Koul <vkoul@kernel.org>,
Angelo Dureghello <angelo@sysam.it>,
Krzysztof Kozlowski <krzk@kernel.org>
Subject: [v3] dmaengine: fsl-edma: remove dma_slave_config direction usage
Date: Tue, 9 Oct 2018 13:01:09 +0530 [thread overview]
Message-ID: <20181009073109.17595-1-vkoul@kernel.org> (raw)
dma_slave_config direction was marked as deprecated quite some
time back, remove the usage from this driver so that the field
can be removed
Signed-off-by: Vinod Koul <vkoul@kernel.org>
---
CC: Angelo Dureghello <angelo@sysam.it>
CC: Krzysztof Kozlowski <krzk@kernel.org>
drivers/dma/fsl-edma-common.c | 74 +++++++++++++++++++++++++------------------
drivers/dma/fsl-edma-common.h | 12 ++-----
2 files changed, 46 insertions(+), 40 deletions(-)
diff --git a/drivers/dma/fsl-edma-common.c b/drivers/dma/fsl-edma-common.c
index 8ba80f4b6f55..8876c4c1bb2c 100644
--- a/drivers/dma/fsl-edma-common.c
+++ b/drivers/dma/fsl-edma-common.c
@@ -178,19 +178,7 @@ int fsl_edma_slave_config(struct dma_chan *chan,
{
struct fsl_edma_chan *fsl_chan = to_fsl_edma_chan(chan);
- fsl_chan->fsc.dir = cfg->direction;
- if (cfg->direction == DMA_DEV_TO_MEM) {
- fsl_chan->fsc.dev_addr = cfg->src_addr;
- fsl_chan->fsc.addr_width = cfg->src_addr_width;
- fsl_chan->fsc.burst = cfg->src_maxburst;
- fsl_chan->fsc.attr = fsl_edma_get_tcd_attr(cfg->src_addr_width);
- } else if (cfg->direction == DMA_MEM_TO_DEV) {
- fsl_chan->fsc.dev_addr = cfg->dst_addr;
- fsl_chan->fsc.addr_width = cfg->dst_addr_width;
- fsl_chan->fsc.burst = cfg->dst_maxburst;
- fsl_chan->fsc.attr = fsl_edma_get_tcd_attr(cfg->dst_addr_width);
- } else
- return -EINVAL;
+ memcpy(&fsl_chan->cfg, cfg, sizeof(*cfg));
return 0;
}
@@ -202,7 +190,7 @@ static size_t fsl_edma_desc_residue(struct fsl_edma_chan *fsl_chan,
struct fsl_edma_desc *edesc = fsl_chan->edesc;
struct edma_regs *regs = &fsl_chan->edma->regs;
u32 ch = fsl_chan->vchan.chan.chan_id;
- enum dma_transfer_direction dir = fsl_chan->fsc.dir;
+ enum dma_transfer_direction dir = edesc->dirn;
dma_addr_t cur_addr, dma_addr;
size_t len, size;
int i;
@@ -387,7 +375,7 @@ struct dma_async_tx_descriptor *fsl_edma_prep_dma_cyclic(
u32 src_addr, dst_addr, last_sg, nbytes;
u16 soff, doff, iter;
- if (!is_slave_direction(fsl_chan->fsc.dir))
+ if (!is_slave_direction(direction))
return NULL;
sg_len = buf_len / period_len;
@@ -395,9 +383,21 @@ struct dma_async_tx_descriptor *fsl_edma_prep_dma_cyclic(
if (!fsl_desc)
return NULL;
fsl_desc->iscyclic = true;
+ fsl_desc->dirn = direction;
dma_buf_next = dma_addr;
- nbytes = fsl_chan->fsc.addr_width * fsl_chan->fsc.burst;
+ if (direction == DMA_MEM_TO_DEV) {
+ fsl_chan->attr =
+ fsl_edma_get_tcd_attr(fsl_chan->cfg.dst_addr_width);
+ nbytes = fsl_chan->cfg.dst_addr_width *
+ fsl_chan->cfg.dst_maxburst;
+ } else {
+ fsl_chan->attr =
+ fsl_edma_get_tcd_attr(fsl_chan->cfg.src_addr_width);
+ nbytes = fsl_chan->cfg.src_addr_width *
+ fsl_chan->cfg.src_maxburst;
+ }
+
iter = period_len / nbytes;
for (i = 0; i < sg_len; i++) {
@@ -407,20 +407,20 @@ struct dma_async_tx_descriptor *fsl_edma_prep_dma_cyclic(
/* get next sg's physical address */
last_sg = fsl_desc->tcd[(i + 1) % sg_len].ptcd;
- if (fsl_chan->fsc.dir == DMA_MEM_TO_DEV) {
+ if (direction == DMA_MEM_TO_DEV) {
src_addr = dma_buf_next;
- dst_addr = fsl_chan->fsc.dev_addr;
- soff = fsl_chan->fsc.addr_width;
+ dst_addr = fsl_chan->cfg.dst_addr;
+ soff = fsl_chan->cfg.dst_addr_width;
doff = 0;
} else {
- src_addr = fsl_chan->fsc.dev_addr;
+ src_addr = fsl_chan->cfg.src_addr;
dst_addr = dma_buf_next;
soff = 0;
- doff = fsl_chan->fsc.addr_width;
+ doff = fsl_chan->cfg.src_addr_width;
}
fsl_edma_fill_tcd(fsl_desc->tcd[i].vtcd, src_addr, dst_addr,
- fsl_chan->fsc.attr, soff, nbytes, 0, iter,
+ fsl_chan->attr, soff, nbytes, 0, iter,
iter, doff, last_sg, true, false, true);
dma_buf_next += period_len;
}
@@ -441,42 +441,54 @@ struct dma_async_tx_descriptor *fsl_edma_prep_slave_sg(
u16 soff, doff, iter;
int i;
- if (!is_slave_direction(fsl_chan->fsc.dir))
+ if (!is_slave_direction(direction))
return NULL;
fsl_desc = fsl_edma_alloc_desc(fsl_chan, sg_len);
if (!fsl_desc)
return NULL;
fsl_desc->iscyclic = false;
+ fsl_desc->dirn = direction;
+
+ if (direction == DMA_MEM_TO_DEV) {
+ fsl_chan->attr =
+ fsl_edma_get_tcd_attr(fsl_chan->cfg.dst_addr_width);
+ nbytes = fsl_chan->cfg.dst_addr_width *
+ fsl_chan->cfg.dst_maxburst;
+ } else {
+ fsl_chan->attr =
+ fsl_edma_get_tcd_attr(fsl_chan->cfg.src_addr_width);
+ nbytes = fsl_chan->cfg.src_addr_width *
+ fsl_chan->cfg.src_maxburst;
+ }
- nbytes = fsl_chan->fsc.addr_width * fsl_chan->fsc.burst;
for_each_sg(sgl, sg, sg_len, i) {
/* get next sg's physical address */
last_sg = fsl_desc->tcd[(i + 1) % sg_len].ptcd;
- if (fsl_chan->fsc.dir == DMA_MEM_TO_DEV) {
+ if (direction == DMA_MEM_TO_DEV) {
src_addr = sg_dma_address(sg);
- dst_addr = fsl_chan->fsc.dev_addr;
- soff = fsl_chan->fsc.addr_width;
+ dst_addr = fsl_chan->cfg.dst_addr;
+ soff = fsl_chan->cfg.dst_addr_width;
doff = 0;
} else {
- src_addr = fsl_chan->fsc.dev_addr;
+ src_addr = fsl_chan->cfg.src_addr;
dst_addr = sg_dma_address(sg);
soff = 0;
- doff = fsl_chan->fsc.addr_width;
+ doff = fsl_chan->cfg.src_addr_width;
}
iter = sg_dma_len(sg) / nbytes;
if (i < sg_len - 1) {
last_sg = fsl_desc->tcd[(i + 1)].ptcd;
fsl_edma_fill_tcd(fsl_desc->tcd[i].vtcd, src_addr,
- dst_addr, fsl_chan->fsc.attr, soff,
+ dst_addr, fsl_chan->attr, soff,
nbytes, 0, iter, iter, doff, last_sg,
false, false, true);
} else {
last_sg = 0;
fsl_edma_fill_tcd(fsl_desc->tcd[i].vtcd, src_addr,
- dst_addr, fsl_chan->fsc.attr, soff,
+ dst_addr, fsl_chan->attr, soff,
nbytes, 0, iter, iter, doff, last_sg,
true, true, false);
}
diff --git a/drivers/dma/fsl-edma-common.h b/drivers/dma/fsl-edma-common.h
index a6f5b99ee95f..8917e8865959 100644
--- a/drivers/dma/fsl-edma-common.h
+++ b/drivers/dma/fsl-edma-common.h
@@ -109,14 +109,6 @@ struct fsl_edma_sw_tcd {
struct fsl_edma_hw_tcd *vtcd;
};
-struct fsl_edma_slave_config {
- enum dma_transfer_direction dir;
- enum dma_slave_buswidth addr_width;
- u32 dev_addr;
- u32 burst;
- u32 attr;
-};
-
struct fsl_edma_chan {
struct virt_dma_chan vchan;
enum dma_status status;
@@ -125,7 +117,8 @@ struct fsl_edma_chan {
u32 slave_id;
struct fsl_edma_engine *edma;
struct fsl_edma_desc *edesc;
- struct fsl_edma_slave_config fsc;
+ struct dma_slave_config cfg;
+ u32 attr;
struct dma_pool *tcd_pool;
};
@@ -133,6 +126,7 @@ struct fsl_edma_desc {
struct virt_dma_desc vdesc;
struct fsl_edma_chan *echan;
bool iscyclic;
+ enum dma_transfer_direction dirn;
unsigned int n_tcds;
struct fsl_edma_sw_tcd tcd[];
};
next reply other threads:[~2018-10-09 7:31 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-10-09 7:31 Vinod Koul [this message]
2018-10-09 7:48 [v3] dmaengine: fsl-edma: remove dma_slave_config direction usage Krzysztof Kozlowski
2018-10-09 8:02 Angelo Dureghello
2018-10-09 8:59 Vinod Koul
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20181009073109.17595-1-vkoul@kernel.org \
--to=vkoul@kernel.org \
--cc=angelo@sysam.it \
--cc=dmaengine@vger.kernel.org \
--cc=krzk@kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.