[PATCH V1] MIPS: Loongson1B: Provide DMA filter callbacks via platform data
From: Keguang Zhang <keguang.zhang@gmail.com>
Date: 2016-08-09 08:22:49
Also in:
lkml
Subsystem:
mips, mips/loongson1 architecture, the rest · Maintainers:
Thomas Bogendoerfer, Keguang Zhang, Linus Torvalds
From: Kelvin Cheung <keguang.zhang@gmail.com> This patch provides DMA filter callbacks via platform data to make NAND driver independent of single DMA engine driver. Signed-off-by: Kelvin Cheung <keguang.zhang@gmail.com> --- v1: Fix the build error --- arch/mips/include/asm/mach-loongson32/dma.h | 4 ++++ arch/mips/include/asm/mach-loongson32/nand.h | 3 +-- arch/mips/loongson32/ls1b/board.c | 3 +++ 3 files changed, 8 insertions(+), 2 deletions(-)
diff --git a/arch/mips/include/asm/mach-loongson32/dma.h b/arch/mips/include/asm/mach-loongson32/dma.h
index ad1dec7..d3ae391 100644
--- a/arch/mips/include/asm/mach-loongson32/dma.h
+++ b/arch/mips/include/asm/mach-loongson32/dma.h@@ -12,6 +12,8 @@ #ifndef __ASM_MACH_LOONGSON32_DMA_H #define __ASM_MACH_LOONGSON32_DMA_H +#include <linux/dmaengine.h> + #define LS1X_DMA_CHANNEL0 0 #define LS1X_DMA_CHANNEL1 1 #define LS1X_DMA_CHANNEL2 2
@@ -22,4 +24,6 @@ struct plat_ls1x_dma { extern struct plat_ls1x_dma ls1b_dma_pdata; +bool ls1x_dma_filter(struct dma_chan *chan, void *param); + #endif /* __ASM_MACH_LOONGSON32_DMA_H */
diff --git a/arch/mips/include/asm/mach-loongson32/nand.h b/arch/mips/include/asm/mach-loongson32/nand.h
index e274912..a1f8704 100644
--- a/arch/mips/include/asm/mach-loongson32/nand.h
+++ b/arch/mips/include/asm/mach-loongson32/nand.h@@ -21,10 +21,9 @@ struct plat_ls1x_nand { int hold_cycle; int wait_cycle; + bool (*dma_filter)(struct dma_chan *chan, void *param); }; extern struct plat_ls1x_nand ls1b_nand_pdata; -bool ls1x_dma_filter_fn(struct dma_chan *chan, void *param); - #endif /* __ASM_MACH_LOONGSON32_NAND_H */
diff --git a/arch/mips/loongson32/ls1b/board.c b/arch/mips/loongson32/ls1b/board.c
index 38a1d40..dac1cbb 100644
--- a/arch/mips/loongson32/ls1b/board.c
+++ b/arch/mips/loongson32/ls1b/board.c@@ -38,6 +38,9 @@ struct plat_ls1x_nand ls1x_nand_pdata = { .nr_parts = ARRAY_SIZE(ls1x_nand_parts), .hold_cycle = 0x2, .wait_cycle = 0xc, +#ifdef CONFIG_LOONGSON1_DMA + .dma_filter = ls1x_dma_filter, +#endif }; static const struct gpio_led ls1x_gpio_leds[] __initconst = {
--
1.9.1