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Subject[PATCH V3 12/12] dmaengine/dw_dmac: Remove unused fields in struct dw_dma_slave
Date
Signed-off-by: Viresh Kumar <viresh.kumar@st.com>
---
drivers/dma/dw_dmac_regs.h | 12 ++++++++++++
include/linux/dw_dmac.h | 38 --------------------------------------
2 files changed, 12 insertions(+), 38 deletions(-)
diff --git a/drivers/dma/dw_dmac_regs.h b/drivers/dma/dw_dmac_regs.h
index 2005d30..eec0481 100644
--- a/drivers/dma/dw_dmac_regs.h
+++ b/drivers/dma/dw_dmac_regs.h
@@ -13,6 +13,18 @@

#define DW_DMA_MAX_NR_CHANNELS 8

+/* flow controller */
+enum dw_dma_fc {
+ DW_DMA_FC_D_M2M,
+ DW_DMA_FC_D_M2P,
+ DW_DMA_FC_D_P2M,
+ DW_DMA_FC_D_P2P,
+ DW_DMA_FC_P_P2M,
+ DW_DMA_FC_SP_P2P,
+ DW_DMA_FC_P_M2P,
+ DW_DMA_FC_DP_P2P,
+};
+
/*
* Redefine this macro to handle differences between 32- and 64-bit
* addressing, big vs. little endian, etc.
diff --git a/include/linux/dw_dmac.h b/include/linux/dw_dmac.h
index f2c64f9..2412e02 100644
--- a/include/linux/dw_dmac.h
+++ b/include/linux/dw_dmac.h
@@ -31,18 +31,6 @@ struct dw_dma_platform_data {
unsigned char chan_priority;
};

-/**
- * enum dw_dma_slave_width - DMA slave register access width.
- * @DMA_SLAVE_WIDTH_8BIT: Do 8-bit slave register accesses
- * @DMA_SLAVE_WIDTH_16BIT: Do 16-bit slave register accesses
- * @DMA_SLAVE_WIDTH_32BIT: Do 32-bit slave register accesses
- */
-enum dw_dma_slave_width {
- DW_DMA_SLAVE_WIDTH_8BIT,
- DW_DMA_SLAVE_WIDTH_16BIT,
- DW_DMA_SLAVE_WIDTH_32BIT,
-};
-
/* bursts size */
enum dw_dma_msize {
DW_DMA_MSIZE_1,
@@ -55,47 +43,21 @@ enum dw_dma_msize {
DW_DMA_MSIZE_256,
};

-/* flow controller */
-enum dw_dma_fc {
- DW_DMA_FC_D_M2M,
- DW_DMA_FC_D_M2P,
- DW_DMA_FC_D_P2M,
- DW_DMA_FC_D_P2P,
- DW_DMA_FC_P_P2M,
- DW_DMA_FC_SP_P2P,
- DW_DMA_FC_P_M2P,
- DW_DMA_FC_DP_P2P,
-};
-
/**
* struct dw_dma_slave - Controller-specific information about a slave
*
* @dma_dev: required DMA master device
- * @tx_reg: physical address of data register used for
- * memory-to-peripheral transfers
- * @rx_reg: physical address of data register used for
- * peripheral-to-memory transfers
- * @reg_width: peripheral register width
* @cfg_hi: Platform-specific initializer for the CFG_HI register
* @cfg_lo: Platform-specific initializer for the CFG_LO register
* @src_master: src master for transfers on allocated channel.
* @dst_master: dest master for transfers on allocated channel.
- * @src_msize: src burst size.
- * @dst_msize: dest burst size.
- * @fc: flow controller for DMA transfer
*/
struct dw_dma_slave {
struct device *dma_dev;
- dma_addr_t tx_reg;
- dma_addr_t rx_reg;
- enum dw_dma_slave_width reg_width;
u32 cfg_hi;
u32 cfg_lo;
u8 src_master;
u8 dst_master;
- u8 src_msize;
- u8 dst_msize;
- u8 fc;
};

/* Platform-configurable bits in CFG_HI */
--
1.7.8.110.g4cb5d


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