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-rw-r--r--include/linux/amba/pl022.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/include/linux/amba/pl022.h b/include/linux/amba/pl022.h
index abf26cc47a2b..db6a191ddcf7 100644
--- a/include/linux/amba/pl022.h
+++ b/include/linux/amba/pl022.h
@@ -228,6 +228,7 @@ enum ssp_chip_select {
228}; 228};
229 229
230 230
231struct dma_chan;
231/** 232/**
232 * struct pl022_ssp_master - device.platform_data for SPI controller devices. 233 * struct pl022_ssp_master - device.platform_data for SPI controller devices.
233 * @num_chipselect: chipselects are used to distinguish individual 234 * @num_chipselect: chipselects are used to distinguish individual
@@ -235,11 +236,16 @@ enum ssp_chip_select {
235 * each slave has a chipselect signal, but it's common that not 236 * each slave has a chipselect signal, but it's common that not
236 * every chipselect is connected to a slave. 237 * every chipselect is connected to a slave.
237 * @enable_dma: if true enables DMA driven transfers. 238 * @enable_dma: if true enables DMA driven transfers.
239 * @dma_rx_param: parameter to locate an RX DMA channel.
240 * @dma_tx_param: parameter to locate a TX DMA channel.
238 */ 241 */
239struct pl022_ssp_controller { 242struct pl022_ssp_controller {
240 u16 bus_id; 243 u16 bus_id;
241 u8 num_chipselect; 244 u8 num_chipselect;
242 u8 enable_dma:1; 245 u8 enable_dma:1;
246 bool (*dma_filter)(struct dma_chan *chan, void *filter_param);
247 void *dma_rx_param;
248 void *dma_tx_param;
243}; 249};
244 250
245/** 251/**