diff options
author | Lee Jones <lee.jones@linaro.org> | 2013-05-15 11:51:56 +0200 |
---|---|---|
committer | Linus Walleij <linus.walleij@linaro.org> | 2013-06-04 11:12:09 +0200 |
commit | 16db3411ebd4777b0b1b7207b10730b726fb751c (patch) | |
tree | 156709bc7fa1757be5ed04cc871f0f41538f338f /drivers/dma/ste_dma40_ll.c | |
parent | ARM: ux500: Remove recently unused stedma40_xfer_dir enums (diff) | |
download | linux-16db3411ebd4777b0b1b7207b10730b726fb751c.tar.xz linux-16db3411ebd4777b0b1b7207b10730b726fb751c.zip |
dmaengine: ste_dma40_ll: Use the BIT macro to replace ugly '(1 << x)'s
The aim is to make the code that little more readable.
Cc: Dan Williams <djbw@fb.com>
Cc: Per Forlin <per.forlin@stericsson.com>
Cc: Rabin Vincent <rabin@rab.in>
Acked-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/dma/ste_dma40_ll.c')
-rw-r--r-- | drivers/dma/ste_dma40_ll.c | 44 |
1 files changed, 22 insertions, 22 deletions
diff --git a/drivers/dma/ste_dma40_ll.c b/drivers/dma/ste_dma40_ll.c index 121c0cec4614..5ddd724dcdc5 100644 --- a/drivers/dma/ste_dma40_ll.c +++ b/drivers/dma/ste_dma40_ll.c @@ -20,28 +20,28 @@ void d40_log_cfg(struct stedma40_chan_cfg *cfg, /* src is mem? -> increase address pos */ if (cfg->dir == DMA_MEM_TO_DEV || cfg->dir == DMA_MEM_TO_MEM) - l1 |= 1 << D40_MEM_LCSP1_SCFG_INCR_POS; + l1 |= BIT(D40_MEM_LCSP1_SCFG_INCR_POS); /* dst is mem? -> increase address pos */ if (cfg->dir == DMA_DEV_TO_MEM || cfg->dir == DMA_MEM_TO_MEM) - l3 |= 1 << D40_MEM_LCSP3_DCFG_INCR_POS; + l3 |= BIT(D40_MEM_LCSP3_DCFG_INCR_POS); /* src is hw? -> master port 1 */ if (cfg->dir == DMA_DEV_TO_MEM || cfg->dir == DMA_DEV_TO_DEV) - l1 |= 1 << D40_MEM_LCSP1_SCFG_MST_POS; + l1 |= BIT(D40_MEM_LCSP1_SCFG_MST_POS); /* dst is hw? -> master port 1 */ if (cfg->dir == DMA_MEM_TO_DEV || cfg->dir == DMA_DEV_TO_DEV) - l3 |= 1 << D40_MEM_LCSP3_DCFG_MST_POS; + l3 |= BIT(D40_MEM_LCSP3_DCFG_MST_POS); - l3 |= 1 << D40_MEM_LCSP3_DCFG_EIM_POS; + l3 |= BIT(D40_MEM_LCSP3_DCFG_EIM_POS); l3 |= cfg->dst_info.psize << D40_MEM_LCSP3_DCFG_PSIZE_POS; l3 |= cfg->dst_info.data_width << D40_MEM_LCSP3_DCFG_ESIZE_POS; - l1 |= 1 << D40_MEM_LCSP1_SCFG_EIM_POS; + l1 |= BIT(D40_MEM_LCSP1_SCFG_EIM_POS); l1 |= cfg->src_info.psize << D40_MEM_LCSP1_SCFG_PSIZE_POS; l1 |= cfg->src_info.data_width << D40_MEM_LCSP1_SCFG_ESIZE_POS; @@ -58,39 +58,39 @@ void d40_phy_cfg(struct stedma40_chan_cfg *cfg, u32 *src_cfg, u32 *dst_cfg) if ((cfg->dir == DMA_DEV_TO_MEM) || (cfg->dir == DMA_DEV_TO_DEV)) { /* Set master port to 1 */ - src |= 1 << D40_SREG_CFG_MST_POS; + src |= BIT(D40_SREG_CFG_MST_POS); src |= D40_TYPE_TO_EVENT(cfg->dev_type); if (cfg->src_info.flow_ctrl == STEDMA40_NO_FLOW_CTRL) - src |= 1 << D40_SREG_CFG_PHY_TM_POS; + src |= BIT(D40_SREG_CFG_PHY_TM_POS); else src |= 3 << D40_SREG_CFG_PHY_TM_POS; } if ((cfg->dir == DMA_MEM_TO_DEV) || (cfg->dir == DMA_DEV_TO_DEV)) { /* Set master port to 1 */ - dst |= 1 << D40_SREG_CFG_MST_POS; + dst |= BIT(D40_SREG_CFG_MST_POS); dst |= D40_TYPE_TO_EVENT(cfg->dev_type); if (cfg->dst_info.flow_ctrl == STEDMA40_NO_FLOW_CTRL) - dst |= 1 << D40_SREG_CFG_PHY_TM_POS; + dst |= BIT(D40_SREG_CFG_PHY_TM_POS); else dst |= 3 << D40_SREG_CFG_PHY_TM_POS; } /* Interrupt on end of transfer for destination */ - dst |= 1 << D40_SREG_CFG_TIM_POS; + dst |= BIT(D40_SREG_CFG_TIM_POS); /* Generate interrupt on error */ - src |= 1 << D40_SREG_CFG_EIM_POS; - dst |= 1 << D40_SREG_CFG_EIM_POS; + src |= BIT(D40_SREG_CFG_EIM_POS); + dst |= BIT(D40_SREG_CFG_EIM_POS); /* PSIZE */ if (cfg->src_info.psize != STEDMA40_PSIZE_PHY_1) { - src |= 1 << D40_SREG_CFG_PHY_PEN_POS; + src |= BIT(D40_SREG_CFG_PHY_PEN_POS); src |= cfg->src_info.psize << D40_SREG_CFG_PSIZE_POS; } if (cfg->dst_info.psize != STEDMA40_PSIZE_PHY_1) { - dst |= 1 << D40_SREG_CFG_PHY_PEN_POS; + dst |= BIT(D40_SREG_CFG_PHY_PEN_POS); dst |= cfg->dst_info.psize << D40_SREG_CFG_PSIZE_POS; } @@ -100,14 +100,14 @@ void d40_phy_cfg(struct stedma40_chan_cfg *cfg, u32 *src_cfg, u32 *dst_cfg) /* Set the priority bit to high for the physical channel */ if (cfg->high_priority) { - src |= 1 << D40_SREG_CFG_PRI_POS; - dst |= 1 << D40_SREG_CFG_PRI_POS; + src |= BIT(D40_SREG_CFG_PRI_POS); + dst |= BIT(D40_SREG_CFG_PRI_POS); } if (cfg->src_info.big_endian) - src |= 1 << D40_SREG_CFG_LBE_POS; + src |= BIT(D40_SREG_CFG_LBE_POS); if (cfg->dst_info.big_endian) - dst |= 1 << D40_SREG_CFG_LBE_POS; + dst |= BIT(D40_SREG_CFG_LBE_POS); *src_cfg = src; *dst_cfg = dst; @@ -157,15 +157,15 @@ static int d40_phy_fill_lli(struct d40_phy_lli *lli, /* If this scatter list entry is the last one, no next link */ if (next_lli == 0) - lli->reg_lnk = 0x1 << D40_SREG_LNK_PHY_TCP_POS; + lli->reg_lnk = BIT(D40_SREG_LNK_PHY_TCP_POS); else lli->reg_lnk = next_lli; /* Set/clear interrupt generation on this link item.*/ if (term_int) - lli->reg_cfg |= 0x1 << D40_SREG_CFG_TIM_POS; + lli->reg_cfg |= BIT(D40_SREG_CFG_TIM_POS); else - lli->reg_cfg &= ~(0x1 << D40_SREG_CFG_TIM_POS); + lli->reg_cfg &= ~BIT(D40_SREG_CFG_TIM_POS); /* Post link */ lli->reg_lnk |= 0 << D40_SREG_LNK_PHY_PRE_POS; |