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.
Signed-off-by: Russell King <[email protected]> --- arch/arm/mach-omap1/dma.c | 14 ++++---------- arch/arm/mach-omap2/dma.c | 14 +++++--------- 2 files changed, 9 insertions(+), 19 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); diff --git a/arch/arm/mach-omap2/dma.c b/arch/arm/mach-omap2/dma.c index 81c2d3383bc5..e4ac7ac9a228 100644 --- a/arch/arm/mach-omap2/dma.c +++ b/arch/arm/mach-omap2/dma.c @@ -38,11 +38,10 @@ #define OMAP2_DMA_STRIDE 0x60 static u32 errata; -static u8 dma_stride; static struct omap_dma_dev_attr *d; -static enum omap_reg_offsets dma_common_ch_start, dma_common_ch_end; +static enum omap_reg_offsets dma_common_ch_end; static u16 reg_map[] = { [REVISION] = 0x00, @@ -96,7 +95,7 @@ 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 >= CSDP) ? OMAP2_DMA_STRIDE : 0; offset = reg_map[reg] + (stride * lch); __raw_writel(val, dma_base + offset); } @@ -106,7 +105,7 @@ 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 >= CSDP) ? OMAP2_DMA_STRIDE : 0; offset = reg_map[reg] + (stride * lch); val = __raw_readl(dma_base + offset); return val; @@ -114,9 +113,9 @@ static inline u32 dma_read(int reg, int lch) static void omap2_clear_dma(int lch) { - int i = dma_common_ch_start; + int i; - for (; i <= dma_common_ch_end; i += 1) + for (i = CSDP; i <= dma_common_ch_end; i += 1) dma_write(0, i, lch); } @@ -219,9 +218,6 @@ static int __init omap2_system_dma_init_dev(struct omap_hwmod *oh, void *unused) struct resource *mem; char *name = "omap_dma_system"; - dma_stride = OMAP2_DMA_STRIDE; - dma_common_ch_start = CSDP; - p = kzalloc(sizeof(struct omap_system_dma_plat_info), GFP_KERNEL); if (!p) { pr_err("%s: Unable to allocate pdata for %s:%s\n", -- 1.7.4.4 -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
