dmaengine: shdma: add to_sh_dev define
This patch adds "to_sh_dev" macro, and clean up codes.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
diff --git a/drivers/dma/shdma.c b/drivers/dma/shdma.c
index 2a638f9..d2fb16d 100644
--- a/drivers/dma/shdma.c
+++ b/drivers/dma/shdma.c
@@ -130,8 +130,7 @@
static unsigned int calc_xmit_shift(struct sh_dmae_chan *sh_chan, u32 chcr)
{
- struct sh_dmae_device *shdev = container_of(sh_chan->common.device,
- struct sh_dmae_device, common);
+ struct sh_dmae_device *shdev = to_sh_dev(sh_chan);
struct sh_dmae_pdata *pdata = shdev->pdata;
int cnt = ((chcr & pdata->ts_low_mask) >> pdata->ts_low_shift) |
((chcr & pdata->ts_high_mask) >> pdata->ts_high_shift);
@@ -144,8 +143,7 @@
static u32 log2size_to_chcr(struct sh_dmae_chan *sh_chan, int l2size)
{
- struct sh_dmae_device *shdev = container_of(sh_chan->common.device,
- struct sh_dmae_device, common);
+ struct sh_dmae_device *shdev = to_sh_dev(sh_chan);
struct sh_dmae_pdata *pdata = shdev->pdata;
int i;
@@ -209,8 +207,7 @@
static int dmae_set_dmars(struct sh_dmae_chan *sh_chan, u16 val)
{
- struct sh_dmae_device *shdev = container_of(sh_chan->common.device,
- struct sh_dmae_device, common);
+ struct sh_dmae_device *shdev = to_sh_dev(sh_chan);
struct sh_dmae_pdata *pdata = shdev->pdata;
const struct sh_dmae_channel *chan_pdata = &pdata->channel[sh_chan->id];
u16 __iomem *addr = shdev->dmars;
@@ -296,9 +293,7 @@
static const struct sh_dmae_slave_config *sh_dmae_find_slave(
struct sh_dmae_chan *sh_chan, struct sh_dmae_slave *param)
{
- struct dma_device *dma_dev = sh_chan->common.device;
- struct sh_dmae_device *shdev = container_of(dma_dev,
- struct sh_dmae_device, common);
+ struct sh_dmae_device *shdev = to_sh_dev(sh_chan);
struct sh_dmae_pdata *pdata = shdev->pdata;
int i;