dmaengine: ste_dma40: Use the BIT macro to replace ugly '(1 << x)'s

The aim is to make the code that little more readable.

Acked-by: Vinod Koul <vnod.koul@intel.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

1 files changed, 10 insertions, 10 deletions

diff --git a/drivers/dma/ste_dma40.c b/drivers/dma/ste_dma40.c
index 6ed775736853..08bc58ae4ceb 100644
--- a/drivers/dma/ste_dma40.c
+++ b/drivers/dma/ste_dma40.c
@@ -54,8 +54,8 @@
 #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
 
 /* Reserved event lines for memcpy only. */
@@ -1738,7 +1738,7 @@ 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);
 
@@ -1828,8 +1828,8 @@ 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;
@@ -1840,8 +1840,8 @@ 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;
@@ -1871,11 +1871,11 @@ 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;
         }
@@ -2356,7 +2356,7 @@ 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;