The aim is to make the code that little more readable.
Acked-by: Vinod Koul <vnod.k...@intel.com>
Acked-by: Arnd Bergmann <a...@arndb.de>
Signed-off-by: Lee Jones <lee.jo...@linaro.org>
diff --git a/drivers/dma/ste_dma40.c b/drivers/dma/ste_dma40.c
index 3b83dee..b3a82bf 100644
--- a/drivers/dma/ste_dma40.c
+++ b/drivers/dma/ste_dma40.c
@@ -49,8 +49,8 @@
#define MAX_LCLA_ALLOC_ATTEMPTS 256
/* Bit markings for allocation map */
-#define D40_ALLOC_FREE (1 << 31)
-#define D40_ALLOC_PHY (1 << 30)
+#define D40_ALLOC_FREE BIT(31)
+#define D40_ALLOC_PHY BIT(30)
#define D40_ALLOC_LOG_FREE 0
#define MAX(a, b) (((a) < (b)) ? (b) : (a))
@@ -993,12 +993,12 @@ static int d40_size_2_dmalen(int size, u32 data_width1,
u32 data_width2)
int dmalen;
u32 max_w = max(data_width1, data_width2);
u32 min_w = min(data_width1, data_width2);
- u32 seg_max = ALIGN(STEDMA40_MAX_SEG_SIZE << min_w, 1 << max_w);
+ u32 seg_max = ALIGN(STEDMA40_MAX_SEG_SIZE << min_w, BIT(max_w));
if (seg_max > STEDMA40_MAX_SEG_SIZE)
- seg_max -= (1 << max_w);
+ seg_max -= BIT(max_w);
- if (!IS_ALIGNED(size, 1 << max_w))
+ if (!IS_ALIGNED(size, BIT(max_w)))
return -EINVAL;
if (size <= seg_max)
@@ -1448,7 +1448,7 @@ static u32 d40_residue(struct d40_chan *d40c)
>> D40_SREG_ELEM_PHY_ECNT_POS;
}
- return num_elt * (1 << d40c->dma_cfg.dst_info.data_width);
+ return num_elt << d40c->dma_cfg.dst_info.data_width;
}
static bool d40_tx_is_linked(struct d40_chan *d40c)
@@ -1722,7 +1722,7 @@ static irqreturn_t d40_handle_interrupt(int irq, void
*data)
}
/* ACK interrupt */
- writel(1 << idx, base->virtbase + il[row].clr);
+ writel(BIT(idx), base->virtbase + il[row].clr);
spin_lock(&d40c->lock);
@@ -1804,9 +1804,9 @@ static int d40_validate_conf(struct d40_chan *d40c,
}
if (d40_psize_2_burst_size(is_log, conf->src_info.psize) *
- (1 << conf->src_info.data_width) !=
+ BIT(conf->src_info.data_width) !=
d40_psize_2_burst_size(is_log, conf->dst_info.psize) *
- (1 << conf->dst_info.data_width)) {
+ BIT(conf->dst_info.data_width)) {
/*
* The DMAC hardware only supports
* src (burst x width) == dst (burst x width)
@@ -1848,8 +1848,8 @@ static bool d40_alloc_mask_set(struct d40_phy_res *phy,
if (phy->allocated_src == D40_ALLOC_FREE)
phy->allocated_src = D40_ALLOC_LOG_FREE;
- if (!(phy->allocated_src & (1 << log_event_line))) {
- phy->allocated_src |= 1 << log_event_line;
+ if (!(phy->allocated_src & BIT(log_event_line))) {
+ phy->allocated_src |= BIT(log_event_line);
goto found;
} else
goto not_found;
@@ -1860,8 +1860,8 @@ static bool d40_alloc_mask_set(struct d40_phy_res *phy,
if (phy->allocated_dst == D40_ALLOC_FREE)
phy->allocated_dst = D40_ALLOC_LOG_FREE;
- if (!(phy->allocated_dst & (1 << log_event_line))) {
- phy->allocated_dst |= 1 << log_event_line;
+ if (!(phy->allocated_dst & BIT(log_event_line))) {
+ phy->allocated_dst |= BIT(log_event_line);
goto found;
} else
goto not_found;
@@ -1891,11 +1891,11 @@ static bool d40_alloc_mask_free(struct d40_phy_res
*phy, bool is_src,
/* Logical channel */
if (is_src) {
- phy->allocated_src &= ~(1 << log_event_line);
+ phy->allocated_src &= ~BIT(log_event_line);
if (phy->allocated_src == D40_ALLOC_LOG_FREE)
phy->allocated_src = D40_ALLOC_FREE;
} else {
- phy->allocated_dst &= ~(1 << log_event_line);
+ phy->allocated_dst &= ~BIT(log_event_line);
if (phy->allocated_dst == D40_ALLOC_LOG_FREE)
phy->allocated_dst = D40_ALLOC_FREE;
}
@@ -2394,7 +2394,7 @@ static void __d40_set_prio_rt(struct d40_chan *d40c, int
dev_type, bool src)
u32 rtreg;
u32 event = D40_TYPE_TO_EVENT(dev_type);
u32 group = D40_TYPE_TO_GROUP(dev_type);
- u32 bit = 1 << event;
+ u32 bit = BIT(event);
u32 prioreg;
struct d40_gen_dmac *dmac = &d40c->base->gen_dmac;
--
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