spi-topcliff-pch: Modify pci-bus number dynamically to get DMA device info

commit ee2ece5261a639b89f194d141444b03b4c923179 upstream.

Signed-off-by: Tomoya MORINAGA <tomoya.rohm@gmail.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>

diff --git a/drivers/spi/spi-topcliff-pch.c b/drivers/spi/spi-topcliff-pch.c
index 54b9d2e..3238ec8 100644 (file)
--- a/drivers/spi/spi-topcliff-pch.c
+++ b/drivers/spi/spi-topcliff-pch.c
@@ -924,7 +924,8 @@ static void pch_spi_request_dma(struct pch_spi_data *data, int bpw)
        dma_cap_set(DMA_SLAVE, mask);
 
        /* Get DMA's dev information */
-       dma_dev = pci_get_bus_and_slot(2, PCI_DEVFN(12, 0));
+       dma_dev = pci_get_bus_and_slot(data->board_dat->pdev->bus->number,
+                                      PCI_DEVFN(12, 0));
 
        /* Set Tx DMA */
        param = &dma->param_tx;