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authorJan Kiszka <jan.kiszka@siemens.com>2017-01-21 10:06:39 +0100
committerMark Brown <broonie@kernel.org>2017-01-23 18:09:37 +0000
commit64e02cb0bdfc7cef0a01e2ad4d567fdc0a74450e (patch)
tree41008222675a76a052a5374eb0ce7f994ff0b952
parente51e9b93049f624c179bab2c651995bca22b5bb7 (diff)
downloadblackbird-op-linux-64e02cb0bdfc7cef0a01e2ad4d567fdc0a74450e.tar.gz
blackbird-op-linux-64e02cb0bdfc7cef0a01e2ad4d567fdc0a74450e.zip
spi: pca2xx-pci: Allow MSI
Now that the core is ready for edge-triggered interrupts, we can safely allow the PCI versions that provide this to enable the feature and, thus, have less shared interrupts. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Jarkko Nikula <jarkko.nikula@linux.intel.com> Signed-off-by: Mark Brown <broonie@kernel.org>
-rw-r--r--drivers/spi/spi-pxa2xx-pci.c8
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/spi/spi-pxa2xx-pci.c b/drivers/spi/spi-pxa2xx-pci.c
index 868452d8e3e1..869f188b02eb 100644
--- a/drivers/spi/spi-pxa2xx-pci.c
+++ b/drivers/spi/spi-pxa2xx-pci.c
@@ -227,10 +227,16 @@ static int pxa2xx_spi_pci_probe(struct pci_dev *dev,
ssp = &spi_pdata.ssp;
ssp->phys_base = pci_resource_start(dev, 0);
ssp->mmio_base = pcim_iomap_table(dev)[0];
- ssp->irq = dev->irq;
ssp->port_id = (c->port_id >= 0) ? c->port_id : dev->devfn;
ssp->type = c->type;
+ pci_set_master(dev);
+
+ ret = pci_alloc_irq_vectors(dev, 1, 1, PCI_IRQ_ALL_TYPES);
+ if (ret < 0)
+ return ret;
+ ssp->irq = pci_irq_vector(dev, 0);
+
snprintf(buf, sizeof(buf), "pxa2xx-spi.%d", ssp->port_id);
ssp->clk = clk_register_fixed_rate(&dev->dev, buf , NULL, 0,
c->max_clk_rate);
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