@@ -36,12 +36,12 @@ struct mid_dma {
static bool mid_spi_dma_chan_filter(struct dma_chan *chan, void *param)
{
- struct dw_spi *dws = param;
+ struct spi_dw *dws = param;
return dws->dmac && (&dws->dmac->dev == chan->device->dev);
}
-static int mid_spi_dma_init(struct dw_spi *dws)
+static int mid_spi_dma_init(struct spi_dw *dws)
{
struct mid_dma *dw_dma = dws->dma_priv;
struct intel_mid_dma_slave *rxs, *txs;
@@ -86,7 +86,7 @@ err_exit:
}
-static void mid_spi_dma_exit(struct dw_spi *dws)
+static void mid_spi_dma_exit(struct spi_dw *dws)
{
dma_release_channel(dws->txchan);
dma_release_channel(dws->rxchan);
@@ -97,16 +97,16 @@ static void mid_spi_dma_exit(struct dw_spi *dws)
* callback for rx/tx channel will each increment it by 1.
* Reaching 2 means the whole spi transaction is done.
*/
-static void dw_spi_dma_done(void *arg)
+static void spi_dw_dma_done(void *arg)
{
- struct dw_spi *dws = arg;
+ struct spi_dw *dws = arg;
if (++dws->dma_chan_done != 2)
return;
- dw_spi_xfer_done(dws);
+ spi_dw_xfer_done(dws);
}
-static int mid_spi_dma_transfer(struct dw_spi *dws, int cs_change)
+static int mid_spi_dma_transfer(struct spi_dw *dws, int cs_change)
{
struct dma_async_tx_descriptor *txdesc = NULL, *rxdesc = NULL;
struct dma_chan *txchan, *rxchan;
@@ -115,7 +115,7 @@ static int mid_spi_dma_transfer(struct dw_spi *dws, int cs_change)
/* 1. setup DMA related registers */
if (cs_change) {
- spi_enable_chip(dws, 0);
+ spi_dw_enable_chip(dws, 0);
dw_writew(dws, dmardlr, 0xf);
dw_writew(dws, dmatdlr, 0x10);
if (dws->tx_dma)
@@ -123,7 +123,7 @@ static int mid_spi_dma_transfer(struct dw_spi *dws, int cs_change)
if (dws->rx_dma)
dma_ctrl |= 0x1;
dw_writew(dws, dmacr, dma_ctrl);
- spi_enable_chip(dws, 1);
+ spi_dw_enable_chip(dws, 1);
}
dws->dma_chan_done = 0;
@@ -149,7 +149,7 @@ static int mid_spi_dma_transfer(struct dw_spi *dws, int cs_change)
1,
DMA_TO_DEVICE,
DMA_PREP_INTERRUPT | DMA_COMPL_SKIP_DEST_UNMAP);
- txdesc->callback = dw_spi_dma_done;
+ txdesc->callback = spi_dw_dma_done;
txdesc->callback_param = dws;
/* 3. Prepare the RX dma transfer */
@@ -171,7 +171,7 @@ static int mid_spi_dma_transfer(struct dw_spi *dws, int cs_change)
1,
DMA_FROM_DEVICE,
DMA_PREP_INTERRUPT | DMA_COMPL_SKIP_DEST_UNMAP);
- rxdesc->callback = dw_spi_dma_done;
+ rxdesc->callback = spi_dw_dma_done;
rxdesc->callback_param = dws;
/* rx must be started before tx due to spi instinct */
@@ -180,7 +180,7 @@ static int mid_spi_dma_transfer(struct dw_spi *dws, int cs_change)
return 0;
}
-static struct dw_spi_dma_ops mid_dma_ops = {
+static struct spi_dw_dma_ops mid_dma_ops = {
.dma_init = mid_spi_dma_init,
.dma_exit = mid_spi_dma_exit,
.dma_transfer = mid_spi_dma_transfer,
@@ -198,7 +198,7 @@ static struct dw_spi_dma_ops mid_dma_ops = {
#define CLK_SPI_CDIV_MASK 0x00000e00
#define CLK_SPI_DISABLE_OFFSET 8
-int dw_spi_mid_init(struct dw_spi *dws)
+int spi_dw_mid_init(struct spi_dw *dws)
{
u32 *clk_reg, clk_cdiv;
@@ -18,21 +18,21 @@
#include "spi-dw.h"
-#define DRIVER_NAME "dw_spi_mmio"
+#define DRIVER_NAME "spi_dw_mmio"
-struct dw_spi_mmio {
- struct dw_spi dws;
+struct spi_dw_mmio {
+ struct spi_dw dws;
struct clk *clk;
};
-static int __devinit dw_spi_mmio_probe(struct platform_device *pdev)
+static int __devinit spi_dw_mmio_probe(struct platform_device *pdev)
{
- struct dw_spi_mmio *dwsmmio;
- struct dw_spi *dws;
+ struct spi_dw_mmio *dwsmmio;
+ struct spi_dw *dws;
struct resource *mem, *ioarea;
int ret;
- dwsmmio = kzalloc(sizeof(struct dw_spi_mmio), GFP_KERNEL);
+ dwsmmio = kzalloc(sizeof(struct spi_dw_mmio), GFP_KERNEL);
if (!dwsmmio) {
ret = -ENOMEM;
goto err_end;
@@ -82,7 +82,7 @@ static int __devinit dw_spi_mmio_probe(struct platform_device *pdev)
dws->num_cs = 4;
dws->max_freq = clk_get_rate(dwsmmio->clk);
- ret = dw_spi_add_host(dws);
+ ret = spi_dw_add_host(dws);
if (ret)
goto err_clk;
@@ -105,9 +105,9 @@ err_end:
return ret;
}
-static int __devexit dw_spi_mmio_remove(struct platform_device *pdev)
+static int __devexit spi_dw_mmio_remove(struct platform_device *pdev)
{
- struct dw_spi_mmio *dwsmmio = platform_get_drvdata(pdev);
+ struct spi_dw_mmio *dwsmmio = platform_get_drvdata(pdev);
struct resource *mem;
platform_set_drvdata(pdev, NULL);
@@ -117,7 +117,7 @@ static int __devexit dw_spi_mmio_remove(struct platform_device *pdev)
dwsmmio->clk = NULL;
free_irq(dwsmmio->dws.irq, &dwsmmio->dws);
- dw_spi_remove_host(&dwsmmio->dws);
+ spi_dw_remove_host(&dwsmmio->dws);
iounmap(dwsmmio->dws.regs);
kfree(dwsmmio);
@@ -126,25 +126,25 @@ static int __devexit dw_spi_mmio_remove(struct platform_device *pdev)
return 0;
}
-static struct platform_driver dw_spi_mmio_driver = {
- .remove = __devexit_p(dw_spi_mmio_remove),
+static struct platform_driver spi_dw_mmio_driver = {
+ .remove = __devexit_p(spi_dw_mmio_remove),
.driver = {
.name = DRIVER_NAME,
.owner = THIS_MODULE,
},
};
-static int __init dw_spi_mmio_init(void)
+static int __init spi_dw_mmio_init(void)
{
- return platform_driver_probe(&dw_spi_mmio_driver, dw_spi_mmio_probe);
+ return platform_driver_probe(&spi_dw_mmio_driver, spi_dw_mmio_probe);
}
-module_init(dw_spi_mmio_init);
+module_init(spi_dw_mmio_init);
-static void __exit dw_spi_mmio_exit(void)
+static void __exit spi_dw_mmio_exit(void)
{
- platform_driver_unregister(&dw_spi_mmio_driver);
+ platform_driver_unregister(&spi_dw_mmio_driver);
}
-module_exit(dw_spi_mmio_exit);
+module_exit(spi_dw_mmio_exit);
MODULE_AUTHOR("Jean-Hugues Deschenes <jean-hugues.deschenes@octasic.com>");
MODULE_DESCRIPTION("Memory-mapped I/O interface driver for DW SPI Core");
@@ -24,18 +24,18 @@
#include "spi-dw.h"
-#define DRIVER_NAME "dw_spi_pci"
+#define DRIVER_NAME "spi_dw_pci"
-struct dw_spi_pci {
+struct spi_dw_pci {
struct pci_dev *pdev;
- struct dw_spi dws;
+ struct spi_dw dws;
};
static int __devinit spi_pci_probe(struct pci_dev *pdev,
const struct pci_device_id *ent)
{
- struct dw_spi_pci *dwpci;
- struct dw_spi *dws;
+ struct spi_dw_pci *dwpci;
+ struct spi_dw *dws;
int pci_bar = 0;
int ret;
@@ -46,7 +46,7 @@ static int __devinit spi_pci_probe(struct pci_dev *pdev,
if (ret)
return ret;
- dwpci = kzalloc(sizeof(struct dw_spi_pci), GFP_KERNEL);
+ dwpci = kzalloc(sizeof(struct spi_dw_pci), GFP_KERNEL);
if (!dwpci) {
ret = -ENOMEM;
goto err_disable;
@@ -80,12 +80,12 @@ static int __devinit spi_pci_probe(struct pci_dev *pdev,
* clock rate, FIFO depth.
*/
if (pdev->device == 0x0800) {
- ret = dw_spi_mid_init(dws);
+ ret = spi_dw_mid_init(dws);
if (ret)
goto err_unmap;
}
- ret = dw_spi_add_host(dws);
+ ret = spi_dw_add_host(dws);
if (ret)
goto err_unmap;
@@ -106,10 +106,10 @@ err_disable:
static void __devexit spi_pci_remove(struct pci_dev *pdev)
{
- struct dw_spi_pci *dwpci = pci_get_drvdata(pdev);
+ struct spi_dw_pci *dwpci = pci_get_drvdata(pdev);
pci_set_drvdata(pdev, NULL);
- dw_spi_remove_host(&dwpci->dws);
+ spi_dw_remove_host(&dwpci->dws);
iounmap(dwpci->dws.regs);
pci_release_region(pdev, 0);
kfree(dwpci);
@@ -119,10 +119,10 @@ static void __devexit spi_pci_remove(struct pci_dev *pdev)
#ifdef CONFIG_PM
static int spi_suspend(struct pci_dev *pdev, pm_message_t state)
{
- struct dw_spi_pci *dwpci = pci_get_drvdata(pdev);
+ struct spi_dw_pci *dwpci = pci_get_drvdata(pdev);
int ret;
- ret = dw_spi_suspend_host(&dwpci->dws);
+ ret = spi_dw_suspend_host(&dwpci->dws);
if (ret)
return ret;
pci_save_state(pdev);
@@ -133,7 +133,7 @@ static int spi_suspend(struct pci_dev *pdev, pm_message_t state)
static int spi_resume(struct pci_dev *pdev)
{
- struct dw_spi_pci *dwpci = pci_get_drvdata(pdev);
+ struct spi_dw_pci *dwpci = pci_get_drvdata(pdev);
int ret;
pci_set_power_state(pdev, PCI_D0);
@@ -141,7 +141,7 @@ static int spi_resume(struct pci_dev *pdev)
ret = pci_enable_device(pdev);
if (ret)
return ret;
- return dw_spi_resume_host(&dwpci->dws);
+ return spi_dw_resume_host(&dwpci->dws);
}
#else
#define spi_suspend NULL
@@ -154,7 +154,7 @@ static const struct pci_device_id pci_ids[] __devinitdata = {
{},
};
-static struct pci_driver dw_spi_driver = {
+static struct pci_driver spi_dw_driver = {
.name = DRIVER_NAME,
.id_table = pci_ids,
.probe = spi_pci_probe,
@@ -165,12 +165,12 @@ static struct pci_driver dw_spi_driver = {
static int __init mrst_spi_init(void)
{
- return pci_register_driver(&dw_spi_driver);
+ return pci_register_driver(&spi_dw_driver);
}
static void __exit mrst_spi_exit(void)
{
- pci_unregister_driver(&dw_spi_driver);
+ pci_unregister_driver(&spi_dw_driver);
}
module_init(mrst_spi_init);
@@ -59,17 +59,17 @@ struct chip_data {
};
#ifdef CONFIG_DEBUG_FS
-static int spi_show_regs_open(struct inode *inode, struct file *file)
+static int spi_dw_show_regs_open(struct inode *inode, struct file *file)
{
file->private_data = inode->i_private;
return 0;
}
#define SPI_REGS_BUFSIZE 1024
-static ssize_t spi_show_regs(struct file *file, char __user *user_buf,
+static ssize_t spi_dw_show_regs(struct file *file, char __user *user_buf,
size_t count, loff_t *ppos)
{
- struct dw_spi *dws;
+ struct spi_dw *dws;
char *buf;
u32 len = 0;
ssize_t ret;
@@ -81,7 +81,7 @@ static ssize_t spi_show_regs(struct file *file, char __user *user_buf,
return 0;
len += snprintf(buf + len, SPI_REGS_BUFSIZE - len,
- "MRST SPI0 registers:\n");
+ "DW SPI0 registers:\n");
len += snprintf(buf + len, SPI_REGS_BUFSIZE - len,
"=================================\n");
len += snprintf(buf + len, SPI_REGS_BUFSIZE - len,
@@ -122,43 +122,43 @@ static ssize_t spi_show_regs(struct file *file, char __user *user_buf,
return ret;
}
-static const struct file_operations mrst_spi_regs_ops = {
+static const struct file_operations spi_dw_regs_ops = {
.owner = THIS_MODULE,
- .open = spi_show_regs_open,
- .read = spi_show_regs,
+ .open = spi_dw_show_regs_open,
+ .read = spi_dw_show_regs,
.llseek = default_llseek,
};
-static int mrst_spi_debugfs_init(struct dw_spi *dws)
+static int spi_dw_debugfs_init(struct spi_dw *dws)
{
dws->debugfs = debugfs_create_dir("mrst_spi", NULL);
if (!dws->debugfs)
return -ENOMEM;
debugfs_create_file("registers", S_IFREG | S_IRUGO,
- dws->debugfs, (void *)dws, &mrst_spi_regs_ops);
+ dws->debugfs, (void *)dws, &spi_dw_regs_ops);
return 0;
}
-static void mrst_spi_debugfs_remove(struct dw_spi *dws)
+static void spi_dw_debugfs_remove(struct spi_dw *dws)
{
if (dws->debugfs)
debugfs_remove_recursive(dws->debugfs);
}
#else
-static inline int mrst_spi_debugfs_init(struct dw_spi *dws)
+static inline int spi_dw_debugfs_init(struct spi_dw *dws)
{
return 0;
}
-static inline void mrst_spi_debugfs_remove(struct dw_spi *dws)
+static inline void spi_dw_debugfs_remove(struct spi_dw *dws)
{
}
#endif /* CONFIG_DEBUG_FS */
/* Return the max entries we can fill into tx fifo */
-static inline u32 tx_max(struct dw_spi *dws)
+static inline u32 tx_max(struct spi_dw *dws)
{
u32 tx_left, tx_room, rxtx_gap;
@@ -180,14 +180,14 @@ static inline u32 tx_max(struct dw_spi *dws)
}
/* Return the max entries we should read out of rx fifo */
-static inline u32 rx_max(struct dw_spi *dws)
+static inline u32 rx_max(struct spi_dw *dws)
{
u32 rx_left = (dws->rx_end - dws->rx) / dws->n_bytes;
return min(rx_left, (u32)dw_readw(dws, rxflr));
}
-static void dw_writer(struct dw_spi *dws)
+static void spi_dw_writer(struct spi_dw *dws)
{
u32 max = tx_max(dws);
u16 txw = 0;
@@ -205,7 +205,7 @@ static void dw_writer(struct dw_spi *dws)
}
}
-static void dw_reader(struct dw_spi *dws)
+static void spi_dw_reader(struct spi_dw *dws)
{
u32 max = rx_max(dws);
u16 rxw;
@@ -223,7 +223,7 @@ static void dw_reader(struct dw_spi *dws)
}
}
-static void *next_transfer(struct dw_spi *dws)
+static void *spi_dw_next_transfer(struct spi_dw *dws)
{
struct spi_message *msg = dws->cur_msg;
struct spi_transfer *trans = dws->cur_transfer;
@@ -244,7 +244,7 @@ static void *next_transfer(struct dw_spi *dws)
* a dma-capable memory, and this func just need translate
* the virt addr to physical
*/
-static int map_dma_buffers(struct dw_spi *dws)
+static int spi_dw_map_dma_buffers(struct spi_dw *dws)
{
if (!dws->cur_msg->is_dma_mapped
|| !dws->dma_inited
@@ -262,7 +262,7 @@ static int map_dma_buffers(struct dw_spi *dws)
}
/* Caller already set message->status; dma and pio irqs are blocked */
-static void giveback(struct dw_spi *dws)
+static void spi_dw_giveback(struct spi_dw *dws)
{
struct spi_transfer *last_transfer;
unsigned long flags;
@@ -290,34 +290,34 @@ static void giveback(struct dw_spi *dws)
msg->complete(msg->context);
}
-static void int_error_stop(struct dw_spi *dws, const char *msg)
+static void spi_dw_int_error_stop(struct spi_dw *dws, const char *msg)
{
/* Stop the hw */
- spi_enable_chip(dws, 0);
+ spi_dw_enable_chip(dws, 0);
dev_err(&dws->master->dev, "%s\n", msg);
dws->cur_msg->state = ERROR_STATE;
tasklet_schedule(&dws->pump_transfers);
}
-void dw_spi_xfer_done(struct dw_spi *dws)
+void spi_dw_xfer_done(struct spi_dw *dws)
{
/* Update total byte transferred return count actual bytes read */
dws->cur_msg->actual_length += dws->len;
/* Move to next transfer */
- dws->cur_msg->state = next_transfer(dws);
+ dws->cur_msg->state = spi_dw_next_transfer(dws);
/* Handle end of message */
if (dws->cur_msg->state == DONE_STATE) {
dws->cur_msg->status = 0;
- giveback(dws);
+ spi_dw_giveback(dws);
} else
tasklet_schedule(&dws->pump_transfers);
}
-EXPORT_SYMBOL_GPL(dw_spi_xfer_done);
+EXPORT_SYMBOL_GPL(spi_dw_xfer_done);
-static irqreturn_t interrupt_transfer(struct dw_spi *dws)
+static irqreturn_t spi_dw_interrupt_transfer(struct spi_dw *dws)
{
u16 irq_status = dw_readw(dws, isr);
@@ -326,36 +326,36 @@ static irqreturn_t interrupt_transfer(struct dw_spi *dws)
dw_readw(dws, txoicr);
dw_readw(dws, rxoicr);
dw_readw(dws, rxuicr);
- int_error_stop(dws, "interrupt_transfer: fifo overrun/underrun");
+ spi_dw_int_error_stop(dws, "spi-dw: fifo overrun/underrun");
return IRQ_HANDLED;
}
- dw_reader(dws);
+ spi_dw_reader(dws);
if (dws->rx_end == dws->rx) {
- spi_mask_intr(dws, SPI_INT_TXEI);
- dw_spi_xfer_done(dws);
+ spi_dw_mask_intr(dws, SPI_INT_TXEI);
+ spi_dw_xfer_done(dws);
return IRQ_HANDLED;
}
if (irq_status & SPI_INT_TXEI) {
- spi_mask_intr(dws, SPI_INT_TXEI);
- dw_writer(dws);
+ spi_dw_mask_intr(dws, SPI_INT_TXEI);
+ spi_dw_writer(dws);
/* Enable TX irq always, it will be disabled when RX finished */
- spi_umask_intr(dws, SPI_INT_TXEI);
+ spi_dw_umask_intr(dws, SPI_INT_TXEI);
}
return IRQ_HANDLED;
}
-static irqreturn_t dw_spi_irq(int irq, void *dev_id)
+static irqreturn_t spi_dw_irq(int irq, void *dev_id)
{
- struct dw_spi *dws = dev_id;
+ struct spi_dw *dws = dev_id;
u16 irq_status = dw_readw(dws, isr) & 0x3f;
if (!irq_status)
return IRQ_NONE;
if (!dws->cur_msg) {
- spi_mask_intr(dws, SPI_INT_TXEI);
+ spi_dw_mask_intr(dws, SPI_INT_TXEI);
return IRQ_HANDLED;
}
@@ -363,20 +363,20 @@ static irqreturn_t dw_spi_irq(int irq, void *dev_id)
}
/* Must be called inside pump_transfers() */
-static void poll_transfer(struct dw_spi *dws)
+static void spi_dw_poll_transfer(struct spi_dw *dws)
{
do {
- dw_writer(dws);
- dw_reader(dws);
+ spi_dw_writer(dws);
+ spi_dw_reader(dws);
cpu_relax();
} while (dws->rx_end > dws->rx);
- dw_spi_xfer_done(dws);
+ spi_dw_xfer_done(dws);
}
-static void pump_transfers(unsigned long data)
+static void spi_dw_pump_transfers(unsigned long data)
{
- struct dw_spi *dws = (struct dw_spi *)data;
+ struct spi_dw *dws = (struct spi_dw *)data;
struct spi_message *message = NULL;
struct spi_transfer *transfer = NULL;
struct spi_transfer *previous = NULL;
@@ -496,7 +496,7 @@ static void pump_transfers(unsigned long data)
}
/* Check if current transfer is a DMA transaction */
- dws->dma_mapped = map_dma_buffers(dws);
+ dws->dma_mapped = spi_dw_map_dma_buffers(dws);
/*
* Interrupt mode
@@ -508,7 +508,7 @@ static void pump_transfers(unsigned long data)
txint_level = (templen > txint_level) ? txint_level : templen;
imask |= SPI_INT_TXEI | SPI_INT_TXOI | SPI_INT_RXUI | SPI_INT_RXOI;
- dws->transfer_handler = interrupt_transfer;
+ dws->transfer_handler = spi_dw_interrupt_transfer;
}
/*
@@ -518,22 +518,22 @@ static void pump_transfers(unsigned long data)
* 3. control value changes
*/
if (dw_readw(dws, ctrl0) != cr0 || cs_change || clk_div || imask) {
- spi_enable_chip(dws, 0);
+ spi_dw_enable_chip(dws, 0);
if (dw_readw(dws, ctrl0) != cr0)
dw_writew(dws, ctrl0, cr0);
- spi_set_clk(dws, clk_div ? clk_div : chip->clk_div);
- spi_chip_sel(dws, spi->chip_select);
+ spi_dw_set_clk(dws, clk_div ? clk_div : chip->clk_div);
+ spi_dw_chip_sel(dws, spi->chip_select);
/* Set the interrupt mask, for poll mode just disable all int */
- spi_mask_intr(dws, 0xff);
+ spi_dw_mask_intr(dws, 0xff);
if (imask)
- spi_umask_intr(dws, imask);
+ spi_dw_umask_intr(dws, imask);
if (txint_level)
dw_writew(dws, txfltr, txint_level);
- spi_enable_chip(dws, 1);
+ spi_dw_enable_chip(dws, 1);
if (cs_change)
dws->prev_chip = chip;
}
@@ -542,19 +542,19 @@ static void pump_transfers(unsigned long data)
dws->dma_ops->dma_transfer(dws, cs_change);
if (chip->poll_mode)
- poll_transfer(dws);
+ spi_dw_poll_transfer(dws);
return;
early_exit:
- giveback(dws);
+ spi_dw_giveback(dws);
return;
}
-static void pump_messages(struct work_struct *work)
+static void spi_dw_pump_messages(struct work_struct *work)
{
- struct dw_spi *dws =
- container_of(work, struct dw_spi, pump_messages);
+ struct spi_dw *dws =
+ container_of(work, struct spi_dw, pump_messages);
unsigned long flags;
/* Lock queue and check for queue work */
@@ -590,9 +590,9 @@ static void pump_messages(struct work_struct *work)
}
/* spi_device use this to queue in their spi_msg */
-static int dw_spi_transfer(struct spi_device *spi, struct spi_message *msg)
+static int spi_dw_transfer(struct spi_device *spi, struct spi_message *msg)
{
- struct dw_spi *dws = spi_master_get_devdata(spi->master);
+ struct spi_dw *dws = spi_master_get_devdata(spi->master);
unsigned long flags;
spin_lock_irqsave(&dws->lock, flags);
@@ -616,7 +616,7 @@ static int dw_spi_transfer(struct spi_device *spi, struct spi_message *msg)
else {
/* If no other data transaction in air, just go */
spin_unlock_irqrestore(&dws->lock, flags);
- pump_messages(&dws->pump_messages);
+ spi_dw_pump_messages(&dws->pump_messages);
return 0;
}
}
@@ -626,7 +626,7 @@ static int dw_spi_transfer(struct spi_device *spi, struct spi_message *msg)
}
/* This may be called twice for each spi dev */
-static int dw_spi_setup(struct spi_device *spi)
+static int spi_dw_setup(struct spi_device *spi)
{
struct dw_spi_chip *chip_info = NULL;
struct chip_data *chip;
@@ -692,13 +692,13 @@ static int dw_spi_setup(struct spi_device *spi)
return 0;
}
-static void dw_spi_cleanup(struct spi_device *spi)
+static void spi_dw_cleanup(struct spi_device *spi)
{
struct chip_data *chip = spi_get_ctldata(spi);
kfree(chip);
}
-static int __devinit init_queue(struct dw_spi *dws)
+static int __devinit spi_dw_init_queue(struct spi_dw *dws)
{
INIT_LIST_HEAD(&dws->queue);
spin_lock_init(&dws->lock);
@@ -707,9 +707,9 @@ static int __devinit init_queue(struct dw_spi *dws)
dws->busy = 0;
tasklet_init(&dws->pump_transfers,
- pump_transfers, (unsigned long)dws);
+ spi_dw_pump_transfers, (unsigned long)dws);
- INIT_WORK(&dws->pump_messages, pump_messages);
+ INIT_WORK(&dws->pump_messages, spi_dw_pump_messages);
dws->workqueue = create_singlethread_workqueue(
dev_name(dws->master->dev.parent));
if (dws->workqueue == NULL)
@@ -718,7 +718,7 @@ static int __devinit init_queue(struct dw_spi *dws)
return 0;
}
-static int start_queue(struct dw_spi *dws)
+static int spi_dw_start_queue(struct spi_dw *dws)
{
unsigned long flags;
@@ -741,7 +741,7 @@ static int start_queue(struct dw_spi *dws)
return 0;
}
-static int stop_queue(struct dw_spi *dws)
+static int spi_dw_stop_queue(struct spi_dw *dws)
{
unsigned long flags;
unsigned limit = 50;
@@ -762,11 +762,11 @@ static int stop_queue(struct dw_spi *dws)
return status;
}
-static int destroy_queue(struct dw_spi *dws)
+static int destroy_queue(struct spi_dw *dws)
{
int status;
- status = stop_queue(dws);
+ status = spi_dw_stop_queue(dws);
if (status != 0)
return status;
destroy_workqueue(dws->workqueue);
@@ -774,11 +774,11 @@ static int destroy_queue(struct dw_spi *dws)
}
/* Restart the controller, disable all interrupts, clean rx fifo */
-static void spi_hw_init(struct dw_spi *dws)
+static void spi_dw_hw_init(struct spi_dw *dws)
{
- spi_enable_chip(dws, 0);
- spi_mask_intr(dws, 0xff);
- spi_enable_chip(dws, 1);
+ spi_dw_enable_chip(dws, 0);
+ spi_dw_mask_intr(dws, 0xff);
+ spi_dw_enable_chip(dws, 1);
/*
* Try to detect the FIFO depth if not set by interface driver,
@@ -797,7 +797,7 @@ static void spi_hw_init(struct dw_spi *dws)
}
}
-int __devinit dw_spi_add_host(struct dw_spi *dws)
+int __devinit spi_dw_add_host(struct spi_dw *dws)
{
struct spi_master *master;
int ret;
@@ -816,8 +816,8 @@ int __devinit dw_spi_add_host(struct dw_spi *dws)
dws->dma_inited = 0;
dws->dma_addr = (dma_addr_t)(dws->paddr + 0x60);
- ret = request_irq(dws->irq, dw_spi_irq, IRQF_SHARED,
- "dw_spi", dws);
+ ret = request_irq(dws->irq, spi_dw_irq, IRQF_SHARED,
+ "spi_dw", dws);
if (ret < 0) {
dev_err(&master->dev, "can not get IRQ\n");
goto err_free_master;
@@ -826,12 +826,12 @@ int __devinit dw_spi_add_host(struct dw_spi *dws)
master->mode_bits = SPI_CPOL | SPI_CPHA;
master->bus_num = dws->bus_num;
master->num_chipselect = dws->num_cs;
- master->cleanup = dw_spi_cleanup;
- master->setup = dw_spi_setup;
- master->transfer = dw_spi_transfer;
+ master->cleanup = spi_dw_cleanup;
+ master->setup = spi_dw_setup;
+ master->transfer = spi_dw_transfer;
/* Basic HW init */
- spi_hw_init(dws);
+ spi_dw_hw_init(dws);
if (dws->dma_ops && dws->dma_ops->dma_init) {
ret = dws->dma_ops->dma_init(dws);
@@ -842,12 +842,12 @@ int __devinit dw_spi_add_host(struct dw_spi *dws)
}
/* Initial and start queue */
- ret = init_queue(dws);
+ ret = spi_dw_init_queue(dws);
if (ret) {
dev_err(&master->dev, "problem initializing queue\n");
goto err_diable_hw;
}
- ret = start_queue(dws);
+ ret = spi_dw_start_queue(dws);
if (ret) {
dev_err(&master->dev, "problem starting queue\n");
goto err_diable_hw;
@@ -860,7 +860,7 @@ int __devinit dw_spi_add_host(struct dw_spi *dws)
goto err_queue_alloc;
}
- mrst_spi_debugfs_init(dws);
+ spi_dw_debugfs_init(dws);
return 0;
err_queue_alloc:
@@ -868,65 +868,65 @@ err_queue_alloc:
if (dws->dma_ops && dws->dma_ops->dma_exit)
dws->dma_ops->dma_exit(dws);
err_diable_hw:
- spi_enable_chip(dws, 0);
+ spi_dw_enable_chip(dws, 0);
free_irq(dws->irq, dws);
err_free_master:
spi_master_put(master);
exit:
return ret;
}
-EXPORT_SYMBOL_GPL(dw_spi_add_host);
+EXPORT_SYMBOL_GPL(spi_dw_add_host);
-void __devexit dw_spi_remove_host(struct dw_spi *dws)
+void __devexit spi_dw_remove_host(struct spi_dw *dws)
{
int status = 0;
if (!dws)
return;
- mrst_spi_debugfs_remove(dws);
+ spi_dw_debugfs_remove(dws);
/* Remove the queue */
status = destroy_queue(dws);
if (status != 0)
- dev_err(&dws->master->dev, "dw_spi_remove: workqueue will not "
+ dev_err(&dws->master->dev, "spi_dw_remove: workqueue will not "
"complete, message memory not freed\n");
if (dws->dma_ops && dws->dma_ops->dma_exit)
dws->dma_ops->dma_exit(dws);
- spi_enable_chip(dws, 0);
+ spi_dw_enable_chip(dws, 0);
/* Disable clk */
- spi_set_clk(dws, 0);
+ spi_dw_set_clk(dws, 0);
free_irq(dws->irq, dws);
/* Disconnect from the SPI framework */
spi_unregister_master(dws->master);
}
-EXPORT_SYMBOL_GPL(dw_spi_remove_host);
+EXPORT_SYMBOL_GPL(spi_dw_remove_host);
-int dw_spi_suspend_host(struct dw_spi *dws)
+int spi_dw_suspend_host(struct spi_dw *dws)
{
int ret = 0;
- ret = stop_queue(dws);
+ ret = spi_dw_stop_queue(dws);
if (ret)
return ret;
- spi_enable_chip(dws, 0);
- spi_set_clk(dws, 0);
+ spi_dw_enable_chip(dws, 0);
+ spi_dw_set_clk(dws, 0);
return ret;
}
-EXPORT_SYMBOL_GPL(dw_spi_suspend_host);
+EXPORT_SYMBOL_GPL(spi_dw_suspend_host);
-int dw_spi_resume_host(struct dw_spi *dws)
+int spi_dw_resume_host(struct spi_dw *dws)
{
int ret;
- spi_hw_init(dws);
- ret = start_queue(dws);
+ spi_dw_hw_init(dws);
+ ret = spi_dw_start_queue(dws);
if (ret)
dev_err(&dws->master->dev, "fail to start queue (%d)\n", ret);
return ret;
}
-EXPORT_SYMBOL_GPL(dw_spi_resume_host);
+EXPORT_SYMBOL_GPL(spi_dw_resume_host);
MODULE_AUTHOR("Feng Tang <feng.tang@intel.com>");
MODULE_DESCRIPTION("Driver for DesignWare SPI controller core");
@@ -51,7 +51,7 @@
#define SPI_INT_THRESHOLD 32
-struct dw_spi_reg {
+struct spi_dw_reg {
u32 ctrl0;
u32 ctrl1;
u32 ssienr;
@@ -80,14 +80,14 @@ struct dw_spi_reg {
though only low 16 bits matters */
} __packed;
-struct dw_spi;
-struct dw_spi_dma_ops {
- int (*dma_init)(struct dw_spi *dws);
- void (*dma_exit)(struct dw_spi *dws);
- int (*dma_transfer)(struct dw_spi *dws, int cs_change);
+struct spi_dw;
+struct spi_dw_dma_ops {
+ int (*dma_init)(struct spi_dw *dws);
+ void (*dma_exit)(struct spi_dw *dws);
+ int (*dma_transfer)(struct spi_dw *dws, int cs_change);
};
-struct dw_spi {
+struct spi_dw {
struct spi_master *master;
struct spi_device *cur_dev;
struct device *parent_dev;
@@ -133,7 +133,7 @@ struct dw_spi {
u8 max_bits_per_word; /* maxim is 16b */
u32 dma_width;
int cs_change;
- irqreturn_t (*transfer_handler)(struct dw_spi *dws);
+ irqreturn_t (*transfer_handler)(struct spi_dw *dws);
void (*cs_control)(u32 command);
/* Dma info */
@@ -145,7 +145,7 @@ struct dw_spi {
int dma_chan_done;
struct device *dma_dev;
dma_addr_t dma_addr; /* phy address of the Data register */
- struct dw_spi_dma_ops *dma_ops;
+ struct spi_dw_dma_ops *dma_ops;
void *dma_priv; /* platform relate info */
struct pci_dev *dmac;
@@ -157,25 +157,25 @@ struct dw_spi {
};
#define dw_readl(dw, name) \
- __raw_readl(&(((struct dw_spi_reg *)dw->regs)->name))
+ __raw_readl(&(((struct spi_dw_reg *)dw->regs)->name))
#define dw_writel(dw, name, val) \
- __raw_writel((val), &(((struct dw_spi_reg *)dw->regs)->name))
+ __raw_writel((val), &(((struct spi_dw_reg *)dw->regs)->name))
#define dw_readw(dw, name) \
- __raw_readw(&(((struct dw_spi_reg *)dw->regs)->name))
+ __raw_readw(&(((struct spi_dw_reg *)dw->regs)->name))
#define dw_writew(dw, name, val) \
- __raw_writew((val), &(((struct dw_spi_reg *)dw->regs)->name))
+ __raw_writew((val), &(((struct spi_dw_reg *)dw->regs)->name))
-static inline void spi_enable_chip(struct dw_spi *dws, int enable)
+static inline void spi_dw_enable_chip(struct spi_dw *dws, int enable)
{
dw_writel(dws, ssienr, (enable ? 1 : 0));
}
-static inline void spi_set_clk(struct dw_spi *dws, u16 div)
+static inline void spi_dw_set_clk(struct spi_dw *dws, u16 div)
{
dw_writel(dws, baudr, div);
}
-static inline void spi_chip_sel(struct dw_spi *dws, u16 cs)
+static inline void spi_dw_chip_sel(struct spi_dw *dws, u16 cs)
{
if (cs > dws->num_cs)
return;
@@ -187,7 +187,7 @@ static inline void spi_chip_sel(struct dw_spi *dws, u16 cs)
}
/* Disable IRQ bits */
-static inline void spi_mask_intr(struct dw_spi *dws, u32 mask)
+static inline void spi_dw_mask_intr(struct spi_dw *dws, u32 mask)
{
u32 new_mask;
@@ -196,7 +196,7 @@ static inline void spi_mask_intr(struct dw_spi *dws, u32 mask)
}
/* Enable IRQ bits */
-static inline void spi_umask_intr(struct dw_spi *dws, u32 mask)
+static inline void spi_dw_umask_intr(struct spi_dw *dws, u32 mask)
{
u32 new_mask;
@@ -205,12 +205,12 @@ static inline void spi_umask_intr(struct dw_spi *dws, u32 mask)
}
-extern int dw_spi_add_host(struct dw_spi *dws);
-extern void dw_spi_remove_host(struct dw_spi *dws);
-extern int dw_spi_suspend_host(struct dw_spi *dws);
-extern int dw_spi_resume_host(struct dw_spi *dws);
-extern void dw_spi_xfer_done(struct dw_spi *dws);
+extern int spi_dw_add_host(struct spi_dw *dws);
+extern void spi_dw_remove_host(struct spi_dw *dws);
+extern int spi_dw_suspend_host(struct spi_dw *dws);
+extern int spi_dw_resume_host(struct spi_dw *dws);
+extern void spi_dw_xfer_done(struct spi_dw *dws);
/* platform related setup */
-extern int dw_spi_mid_init(struct dw_spi *dws); /* Intel MID platforms */
+extern int spi_dw_mid_init(struct spi_dw *dws); /* Intel MID platforms */
#endif /* DW_SPI_HEADER_H */