Commit 8ac82f88 authored by Ludovic Desroches's avatar Ludovic Desroches Committed by Vinod Koul

dmaengine: at_xdmac: Declare slave capabilities for the generic code

Now that the generic slave caps code can make use of the device assigned
capabilities, instead of relying on a callback to be implemented.

Make use of this code.
Signed-off-by: default avatarLudovic Desroches <ludovic.desroches@atmel.com>
Signed-off-by: default avatarMaxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: default avatarVinod Koul <vinod.koul@intel.com>
parent 7664cfe0
...@@ -174,6 +174,13 @@ ...@@ -174,6 +174,13 @@
#define AT_XDMAC_MAX_CHAN 0x20 #define AT_XDMAC_MAX_CHAN 0x20
#define AT_XDMAC_DMA_BUSWIDTHS\
(BIT(DMA_SLAVE_BUSWIDTH_UNDEFINED) |\
BIT(DMA_SLAVE_BUSWIDTH_1_BYTE) |\
BIT(DMA_SLAVE_BUSWIDTH_2_BYTES) |\
BIT(DMA_SLAVE_BUSWIDTH_4_BYTES) |\
BIT(DMA_SLAVE_BUSWIDTH_8_BYTES))
enum atc_status { enum atc_status {
AT_XDMAC_CHAN_IS_CYCLIC = 0, AT_XDMAC_CHAN_IS_CYCLIC = 0,
AT_XDMAC_CHAN_IS_PAUSED, AT_XDMAC_CHAN_IS_PAUSED,
...@@ -1234,27 +1241,6 @@ static void at_xdmac_free_chan_resources(struct dma_chan *chan) ...@@ -1234,27 +1241,6 @@ static void at_xdmac_free_chan_resources(struct dma_chan *chan)
return; return;
} }
#define AT_XDMAC_DMA_BUSWIDTHS\
(BIT(DMA_SLAVE_BUSWIDTH_UNDEFINED) |\
BIT(DMA_SLAVE_BUSWIDTH_1_BYTE) |\
BIT(DMA_SLAVE_BUSWIDTH_2_BYTES) |\
BIT(DMA_SLAVE_BUSWIDTH_4_BYTES) |\
BIT(DMA_SLAVE_BUSWIDTH_8_BYTES))
static int at_xdmac_device_slave_caps(struct dma_chan *dchan,
struct dma_slave_caps *caps)
{
caps->src_addr_widths = AT_XDMAC_DMA_BUSWIDTHS;
caps->dst_addr_widths = AT_XDMAC_DMA_BUSWIDTHS;
caps->directions = BIT(DMA_DEV_TO_MEM) | BIT(DMA_MEM_TO_DEV);
caps->cmd_pause = true;
caps->cmd_terminate = true;
caps->residue_granularity = DMA_RESIDUE_GRANULARITY_BURST;
return 0;
}
#ifdef CONFIG_PM #ifdef CONFIG_PM
static int atmel_xdmac_prepare(struct device *dev) static int atmel_xdmac_prepare(struct device *dev)
{ {
...@@ -1428,7 +1414,10 @@ static int at_xdmac_probe(struct platform_device *pdev) ...@@ -1428,7 +1414,10 @@ static int at_xdmac_probe(struct platform_device *pdev)
atxdmac->dma.device_pause = at_xdmac_device_pause; atxdmac->dma.device_pause = at_xdmac_device_pause;
atxdmac->dma.device_resume = at_xdmac_device_resume; atxdmac->dma.device_resume = at_xdmac_device_resume;
atxdmac->dma.device_terminate_all = at_xdmac_device_terminate_all; atxdmac->dma.device_terminate_all = at_xdmac_device_terminate_all;
atxdmac->dma.device_slave_caps = at_xdmac_device_slave_caps; atxdmac->dma.src_addr_widths = AT_XDMAC_DMA_BUSWIDTHS;
atxdmac->dma.dst_addr_widths = AT_XDMAC_DMA_BUSWIDTHS;
atxdmac->dma.directions = BIT(DMA_DEV_TO_MEM) | BIT(DMA_MEM_TO_DEV);
atxdmac->dma.residue_granularity = DMA_RESIDUE_GRANULARITY_BURST;
/* Disable all chans and interrupts. */ /* Disable all chans and interrupts. */
at_xdmac_off(atxdmac); at_xdmac_off(atxdmac);
......
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