ARM: OMAP2/3: DMA: implement trans copy and const fill (0815f8ea) · Commits · e / devices / android_kernel_oneplus_sm8150

arch/arm/plat-omap/dma.c

+49 −28

Original line number	Diff line number	Diff line
		@@ -310,14 +310,10 @@ EXPORT_SYMBOL(omap_set_dma_transfer_params);

		void omap_set_dma_color_mode(int lch, enum omap_dma_color_mode mode, u32 color)
		{
		u16 w;

		BUG_ON(omap_dma_in_1510_mode());

		if (cpu_class_is_omap2()) {
		REVISIT_24XX();
		return;
		}
		if (cpu_class_is_omap1()) {
		u16 w;

		w = dma_read(CCR2(lch));
		w &= ~0x03;
		@@ -346,6 +342,31 @@ void omap_set_dma_color_mode(int lch, enum omap_dma_color_mode mode, u32 color)
		}
		dma_write(w, LCH_CTRL(lch));
		}

		if (cpu_class_is_omap2()) {
		u32 val;

		val = dma_read(CCR(lch));
		val &= ~((1 << 17) \| (1 << 16));

		switch (mode) {
		case OMAP_DMA_CONSTANT_FILL:
		val \|= 1 << 16;
		break;
		case OMAP_DMA_TRANSPARENT_COPY:
		val \|= 1 << 17;
		break;
		case OMAP_DMA_COLOR_DIS:
		break;
		default:
		BUG();
		}
		dma_write(val, CCR(lch));

		color &= 0xffffff;
		dma_write(color, COLOR(lch));
		}
		}
		EXPORT_SYMBOL(omap_set_dma_color_mode);

		void omap_set_dma_write_mode(int lch, enum omap_dma_write_mode mode)

+1 −0