diff options
| author | Russell King <rmk+kernel@arm.linux.org.uk> | 2013-11-08 14:53:35 +0000 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2014-04-04 00:31:43 +0100 |
| commit | ad0c381a8b3a15b8edfca0996729ea45692470ca (patch) | |
| tree | 0c693b5259fc2150182999a1aa06a807ecf04263 /arch/arm/mach-omap1/dma.c | |
| parent | e38b1485fde832f72ab478f947f6e78a8e28c58b (diff) | |
ARM: omap: remove almost-const variables
dma_stride and dma_common_ch_start are only ever initialised to one
known value at initialisation, and are private to each of these files.
There's no point these being variables at all.
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/mach-omap1/dma.c')
| -rw-r--r-- | arch/arm/mach-omap1/dma.c | 14 |
1 files changed, 4 insertions, 10 deletions
diff --git a/arch/arm/mach-omap1/dma.c b/arch/arm/mach-omap1/dma.c index d292055d3117..11f0b0ee67a3 100644 --- a/arch/arm/mach-omap1/dma.c +++ b/arch/arm/mach-omap1/dma.c @@ -36,8 +36,6 @@ static u32 errata; static u32 enable_1510_mode; -static u8 dma_stride; -static enum omap_reg_offsets dma_common_ch_start, dma_common_ch_end; static u16 reg_map[] = { [GCR] = 0x400, @@ -184,7 +182,7 @@ static inline void dma_write(u32 val, int reg, int lch) u8 stride; u32 offset; - stride = (reg >= dma_common_ch_start) ? dma_stride : 0; + stride = (reg >= CPC) ? OMAP1_DMA_STRIDE : 0; offset = reg_map[reg] + (stride * lch); __raw_writew(val, dma_base + offset); @@ -200,7 +198,7 @@ static inline u32 dma_read(int reg, int lch) u8 stride; u32 offset, val; - stride = (reg >= dma_common_ch_start) ? dma_stride : 0; + stride = (reg >= CPC) ? OMAP1_DMA_STRIDE : 0; offset = reg_map[reg] + (stride * lch); val = __raw_readw(dma_base + offset); @@ -216,9 +214,9 @@ static inline u32 dma_read(int reg, int lch) static void omap1_clear_lch_regs(int lch) { - int i = dma_common_ch_start; + int i; - for (; i <= dma_common_ch_end; i += 1) + for (i = CPC; i <= COLOR; i += 1) dma_write(0, i, lch); } @@ -380,10 +378,6 @@ static int __init omap1_system_dma_init(void) goto exit_release_chan; } - dma_stride = OMAP1_DMA_STRIDE; - dma_common_ch_start = CPC; - dma_common_ch_end = COLOR; - dma_pdev = platform_device_register_full(&omap_dma_dev_info); if (IS_ERR(dma_pdev)) { ret = PTR_ERR(dma_pdev); |