spi/pxa2xx: Don't use slave_id of dma_slave_config
That field has been deprecated in favour of getting the necessary
information from ACPI/DT.
However, we still need to deal systems that are PCI only (no ACPI to back
up). In order to support such systems, we allow the DMA filter function and
its corresponding parameter via pxa2xx_spi_master platform data. Then when
the pxa2xx_spi_dma_setup() doesn't find the channel via ACPI, it falls back
to use the given filter function.
Suggested-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Mark Brown <broonie@linaro.org>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
diff --git a/drivers/spi/spi-pxa2xx-dma.c b/drivers/spi/spi-pxa2xx-dma.c
index c41ff14..62a9297 100644
--- a/drivers/spi/spi-pxa2xx-dma.c
+++ b/drivers/spi/spi-pxa2xx-dma.c
@@ -157,7 +157,6 @@
pxa2xx_spi_dma_prepare_one(struct driver_data *drv_data,
enum dma_transfer_direction dir)
{
- struct pxa2xx_spi_master *pdata = drv_data->master_info;
struct chip_data *chip = drv_data->cur_chip;
enum dma_slave_buswidth width;
struct dma_slave_config cfg;
@@ -184,7 +183,6 @@
cfg.dst_addr = drv_data->ssdr_physical;
cfg.dst_addr_width = width;
cfg.dst_maxburst = chip->dma_burst_size;
- cfg.slave_id = pdata->tx_slave_id;
sgt = &drv_data->tx_sgt;
nents = drv_data->tx_nents;
@@ -193,7 +191,6 @@
cfg.src_addr = drv_data->ssdr_physical;
cfg.src_addr_width = width;
cfg.src_maxburst = chip->dma_burst_size;
- cfg.slave_id = pdata->rx_slave_id;
sgt = &drv_data->rx_sgt;
nents = drv_data->rx_nents;
@@ -210,14 +207,6 @@
DMA_PREP_INTERRUPT | DMA_CTRL_ACK);
}
-static bool pxa2xx_spi_dma_filter(struct dma_chan *chan, void *param)
-{
- const struct pxa2xx_spi_master *pdata = param;
-
- return chan->chan_id == pdata->tx_chan_id ||
- chan->chan_id == pdata->rx_chan_id;
-}
-
bool pxa2xx_spi_dma_is_possible(size_t len)
{
return len <= MAX_DMA_LEN;
@@ -321,12 +310,12 @@
return -ENOMEM;
drv_data->tx_chan = dma_request_slave_channel_compat(mask,
- pxa2xx_spi_dma_filter, pdata, dev, "tx");
+ pdata->dma_filter, pdata->tx_param, dev, "tx");
if (!drv_data->tx_chan)
return -ENODEV;
drv_data->rx_chan = dma_request_slave_channel_compat(mask,
- pxa2xx_spi_dma_filter, pdata, dev, "rx");
+ pdata->dma_filter, pdata->rx_param, dev, "rx");
if (!drv_data->rx_chan) {
dma_release_channel(drv_data->tx_chan);
drv_data->tx_chan = NULL;