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Commit a1c46016 authored by Viresh Kumar's avatar Viresh Kumar Committed by Vinod Koul
Browse files

dmaengine/dw_dmac: Remove unused fields in struct dw_dma_slave 



Signed-off-by: default avatarViresh Kumar <viresh.kumar@st.com>
Signed-off-by: default avatarVinod Koul <vinod.koul@linux.intel.com>
parent e2b35f3d

drivers/dma/dw_dmac_regs.h

+12 −0
Original line number Diff line number Diff line
@@ -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.

include/linux/dw_dmac.h

+0 −38
Original line number Diff line number Diff line
@@ -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 */