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path: root/include/linux/platform_data/dma-ste-dma40.h
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Diffstat (limited to 'include/linux/platform_data/dma-ste-dma40.h')
-rw-r--r--include/linux/platform_data/dma-ste-dma40.h41
1 files changed, 7 insertions, 34 deletions
diff --git a/include/linux/platform_data/dma-ste-dma40.h b/include/linux/platform_data/dma-ste-dma40.h
index 4b781014b0a0..1bb9b1852256 100644
--- a/include/linux/platform_data/dma-ste-dma40.h
+++ b/include/linux/platform_data/dma-ste-dma40.h
@@ -70,23 +70,8 @@ enum stedma40_flow_ctrl {
STEDMA40_FLOW_CTRL,
};
-enum stedma40_periph_data_width {
- STEDMA40_BYTE_WIDTH = STEDMA40_ESIZE_8_BIT,
- STEDMA40_HALFWORD_WIDTH = STEDMA40_ESIZE_16_BIT,
- STEDMA40_WORD_WIDTH = STEDMA40_ESIZE_32_BIT,
- STEDMA40_DOUBLEWORD_WIDTH = STEDMA40_ESIZE_64_BIT
-};
-
-enum stedma40_xfer_dir {
- STEDMA40_MEM_TO_MEM = 1,
- STEDMA40_MEM_TO_PERIPH,
- STEDMA40_PERIPH_TO_MEM,
- STEDMA40_PERIPH_TO_PERIPH
-};
-
-
/**
- * struct stedma40_chan_cfg - dst/src channel configuration
+ * struct stedma40_half_channel_info - dst/src channel configuration
*
* @big_endian: true if the src/dst should be read as big endian
* @data_width: Data width of the src/dst hardware
@@ -95,7 +80,7 @@ enum stedma40_xfer_dir {
*/
struct stedma40_half_channel_info {
bool big_endian;
- enum stedma40_periph_data_width data_width;
+ enum dma_slave_buswidth data_width;
int psize;
enum stedma40_flow_ctrl flow_ctrl;
};
@@ -109,8 +94,7 @@ struct stedma40_half_channel_info {
* version 3+, i.e DB8500v2+
* @mode: channel mode: physical, logical, or operation
* @mode_opt: options for the chosen channel mode
- * @src_dev_type: Src device type
- * @dst_dev_type: Dst device type
+ * @dev_type: src/dst device type (driver uses dir to figure out which)
* @src_info: Parameters for dst half channel
* @dst_info: Parameters for dst half channel
* @use_fixed_channel: if true, use physical channel specified by phy_channel
@@ -121,13 +105,12 @@ struct stedma40_half_channel_info {
*
*/
struct stedma40_chan_cfg {
- enum stedma40_xfer_dir dir;
+ enum dma_transfer_direction dir;
bool high_priority;
bool realtime;
enum stedma40_mode mode;
enum stedma40_mode_opt mode_opt;
- int src_dev_type;
- int dst_dev_type;
+ int dev_type;
struct stedma40_half_channel_info src_info;
struct stedma40_half_channel_info dst_info;
@@ -138,13 +121,8 @@ struct stedma40_chan_cfg {
/**
* struct stedma40_platform_data - Configuration struct for the dma device.
*
- * @dev_len: length of dev_tx and dev_rx
* @dev_tx: mapping between destination event line and io address
* @dev_rx: mapping between source event line and io address
- * @memcpy: list of memcpy event lines
- * @memcpy_len: length of memcpy
- * @memcpy_conf_phy: default configuration of physical channel memcpy
- * @memcpy_conf_log: default configuration of logical channel memcpy
* @disabled_channels: A vector, ending with -1, that marks physical channels
* that are for different reasons not available for the driver.
* @soft_lli_chans: A vector, that marks physical channels will use LLI by SW
@@ -154,22 +132,17 @@ struct stedma40_chan_cfg {
* @num_of_soft_lli_chans: The number of channels that needs to be configured
* to use SoftLLI.
* @use_esram_lcla: flag for mapping the lcla into esram region
+ * @num_of_memcpy_chans: The number of channels reserved for memcpy.
* @num_of_phy_chans: The number of physical channels implemented in HW.
* 0 means reading the number of channels from DMA HW but this is only valid
* for 'multiple of 4' channels, like 8.
*/
struct stedma40_platform_data {
- u32 dev_len;
- const dma_addr_t *dev_tx;
- const dma_addr_t *dev_rx;
- int *memcpy;
- u32 memcpy_len;
- struct stedma40_chan_cfg *memcpy_conf_phy;
- struct stedma40_chan_cfg *memcpy_conf_log;
int disabled_channels[STEDMA40_MAX_PHYS];
int *soft_lli_chans;
int num_of_soft_lli_chans;
bool use_esram_lcla;
+ int num_of_memcpy_chans;
int num_of_phy_chans;
};