Merge tag 'spi-v3.16' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi into next

Pull spi updates from Mark Brown:
 "For this release SPI has been exceptionally quiet, all the work has
  been on improving drivers (including taking advantage of some of the
  recent framework updates):

   - DMA support for the rspi driver providing a nice performance boost
   - performance improvement for the SIRF controller in PIO mode
   - new support for the Cadence SPI IP and for pxa2xx on BayTrail"

* tag 'spi-v3.16' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: (59 commits)
  spi: rspi: Extract rspi_common_transfer()
  spi: rspi: Add DMA support for RSPI on RZ/A1H
  spi: rspi: Add DMA support for QSPI on R-Car Gen2
  spi: rspi: Absorb rspi_rz_transfer_out_in() into rspi_rz_transfer_one()
  spi: rspi: Merge rspi_*_dma() into rspi_dma_transfer()
  spi: rspi: Pass sg_tables instead of spi_tranfer to rspi_*_dma()
  spi: rspi: Move RSPI-specific setup out of DMA routines
  spi: rspi: Use SPI core DMA mapping framework
  spi: rspi: SPI DMA core needs both RX and TX DMA to function
  spi: rspi: Remove unneeded resource test in DMA setup
  spi: rspi: Extract rspi_request_dma_chan()
  spi: rspi: Don't consider DMA configuration failures fatal
  spi: rspi: Extract rspi_pio_transfer()
  spi: rspi: Use core SPI_MASTER_MUST_[RT]X handling
  spi: rspi: Remove unused 16-bit DMA support
  spi: rspi: Do not call rspi_receive_init() for TX-only
  spi: rspi: Extract rspi_wait_for_{tx_empty,rx_full}()
  spi/pxa2xx: fix runtime PM enabling order
  spi/fsl-espi: fix rx_buf in fsl_espi_cmd_trans()/fsl_espi_rw_trans()
  spi: core: Ignore unsupported spi-[tr]x-bus-width property values
  ...

1 files changed, 61 insertions, 15 deletions

diff --git a/drivers/spi/spi-pxa2xx-pci.c b/drivers/spi/spi-pxa2xx-pci.c
index 3f006d3ed2a8..c1865c92ccb9 100644
--- a/drivers/spi/spi-pxa2xx-pci.c
+++ b/drivers/spi/spi-pxa2xx-pci.c
@@ -8,7 +8,43 @@
 #include <linux/module.h>
 #include <linux/spi/pxa2xx_spi.h>
 
-static int ce4100_spi_probe(struct pci_dev *dev,
+enum {
+	PORT_CE4100,
+	PORT_BYT,
+};
+
+struct pxa_spi_info {
+	enum pxa_ssp_type type;
+	int port_id;
+	int num_chipselect;
+	int tx_slave_id;
+	int tx_chan_id;
+	int rx_slave_id;
+	int rx_chan_id;
+};
+
+static struct pxa_spi_info spi_info_configs[] = {
+	[PORT_CE4100] = {
+		.type = PXA25x_SSP,
+		.port_id =  -1,
+		.num_chipselect = -1,
+		.tx_slave_id = -1,
+		.tx_chan_id = -1,
+		.rx_slave_id = -1,
+		.rx_chan_id = -1,
+	},
+	[PORT_BYT] = {
+		.type = LPSS_SSP,
+		.port_id = 0,
+		.num_chipselect = 1,
+		.tx_slave_id = 0,
+		.tx_chan_id = 0,
+		.rx_slave_id = 1,
+		.rx_chan_id = 1,
+	},
+};
+
+static int pxa2xx_spi_pci_probe(struct pci_dev *dev,
 		const struct pci_device_id *ent)
 {
 	struct platform_device_info pi;
@@ -16,6 +52,7 @@ static int ce4100_spi_probe(struct pci_dev *dev,
 	struct platform_device *pdev;
 	struct pxa2xx_spi_master spi_pdata;
 	struct ssp_device *ssp;
+	struct pxa_spi_info *c;
 
 	ret = pcim_enable_device(dev);
 	if (ret)
@@ -25,8 +62,16 @@ static int ce4100_spi_probe(struct pci_dev *dev,
 	if (ret)
 		return ret;
 
+	c = &spi_info_configs[ent->driver_data];
+
 	memset(&spi_pdata, 0, sizeof(spi_pdata));
-	spi_pdata.num_chipselect = dev->devfn;
+	spi_pdata.num_chipselect = (c->num_chipselect > 0) ?
+					c->num_chipselect : dev->devfn;
+	spi_pdata.tx_slave_id = c->tx_slave_id;
+	spi_pdata.tx_chan_id = c->tx_chan_id;
+	spi_pdata.rx_slave_id = c->rx_slave_id;
+	spi_pdata.rx_chan_id = c->rx_chan_id;
+	spi_pdata.enable_dma = c->rx_slave_id >= 0 && c->tx_slave_id >= 0;
 
 	ssp = &spi_pdata.ssp;
 	ssp->phys_base = pci_resource_start(dev, 0);
@@ -36,8 +81,8 @@ static int ce4100_spi_probe(struct pci_dev *dev,
 		return -EIO;
 	}
 	ssp->irq = dev->irq;
-	ssp->port_id = dev->devfn;
-	ssp->type = PXA25x_SSP;
+	ssp->port_id = (c->port_id >= 0) ? c->port_id : dev->devfn;
+	ssp->type = c->type;
 
 	memset(&pi, 0, sizeof(pi));
 	pi.parent = &dev->dev;
@@ -55,28 +100,29 @@ static int ce4100_spi_probe(struct pci_dev *dev,
 	return 0;
 }
 
-static void ce4100_spi_remove(struct pci_dev *dev)
+static void pxa2xx_spi_pci_remove(struct pci_dev *dev)
 {
 	struct platform_device *pdev = pci_get_drvdata(dev);
 
 	platform_device_unregister(pdev);
 }
 
-static const struct pci_device_id ce4100_spi_devices[] = {
-	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x2e6a) },
+static const struct pci_device_id pxa2xx_spi_pci_devices[] = {
+	{ PCI_VDEVICE(INTEL, 0x2e6a), PORT_CE4100 },
+	{ PCI_VDEVICE(INTEL, 0x0f0e), PORT_BYT },
 	{ },
 };
-MODULE_DEVICE_TABLE(pci, ce4100_spi_devices);
+MODULE_DEVICE_TABLE(pci, pxa2xx_spi_pci_devices);
 
-static struct pci_driver ce4100_spi_driver = {
-	.name           = "ce4100_spi",
-	.id_table       = ce4100_spi_devices,
-	.probe          = ce4100_spi_probe,
-	.remove         = ce4100_spi_remove,
+static struct pci_driver pxa2xx_spi_pci_driver = {
+	.name           = "pxa2xx_spi_pci",
+	.id_table       = pxa2xx_spi_pci_devices,
+	.probe          = pxa2xx_spi_pci_probe,
+	.remove         = pxa2xx_spi_pci_remove,
 };
 
-module_pci_driver(ce4100_spi_driver);
+module_pci_driver(pxa2xx_spi_pci_driver);
 
-MODULE_DESCRIPTION("CE4100 PCI-SPI glue code for PXA's driver");
+MODULE_DESCRIPTION("CE4100/LPSS PCI-SPI glue code for PXA's driver");
 MODULE_LICENSE("GPL v2");
 MODULE_AUTHOR("Sebastian Andrzej Siewior <bigeasy@linutronix.de>");