tristate "Freescale i.MX SPI controllers"
depends on ARCH_MXC || COMPILE_TEST
select SPI_BITBANG
- default m if IMX_HAVE_PLATFORM_SPI_IMX
help
This enables using the Freescale i.MX SPI controllers in master
mode.
* published by the Free Software Foundation.
*/
-#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/errno.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/module.h>
-#include <linux/init.h>
#include <linux/delay.h>
#include <linux/spinlock.h>
#include <linux/workqueue.h>
*/
#include <linux/kernel.h>
-#include <linux/init.h>
#include <linux/clk.h>
#include <linux/module.h>
#include <linux/platform_device.h>
*/
#include <linux/kernel.h>
-#include <linux/init.h>
#include <linux/clk.h>
#include <linux/io.h>
#include <linux/module.h>
* Licensed under the GPL-2 or later.
*/
-#include <linux/init.h>
#include <linux/module.h>
#include <linux/delay.h>
#include <linux/device.h>
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
-#include <linux/init.h>
#include <linux/spinlock.h>
#include <linux/workqueue.h>
#include <linux/interrupt.h>
#include <linux/io.h>
#include <linux/clk.h>
-#include <linux/init.h>
#include <linux/gpio.h>
#include <linux/delay.h>
#include <linux/module.h>
*/
#include <linux/kernel.h>
#include <linux/module.h>
-#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/gpio.h>
#include <linux/of.h>
#include <linux/delay.h>
#include <linux/err.h>
#include <linux/gpio.h>
-#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/io.h>
#include <linux/irq.h>
spi_imx->irq = platform_get_irq(pdev, 0);
if (spi_imx->irq < 0) {
- ret = -EINVAL;
+ ret = spi_imx->irq;
goto out_master_put;
}
ret = devm_request_irq(&pdev->dev, spi_imx->irq, spi_imx_isr, 0,
- DRIVER_NAME, spi_imx);
+ dev_name(&pdev->dev), spi_imx);
if (ret) {
dev_err(&pdev->dev, "can't get irq%d: %d\n", spi_imx->irq, ret);
goto out_master_put;
#include <linux/module.h>
#include <linux/kernel.h>
-#include <linux/init.h>
#include <linux/errno.h>
#include <linux/interrupt.h>
#include <linux/of_address.h>
gpio_set_value(spi->cs_gpio, onoff);
}
-/* bus_num is used only for the case dev->platform_data == NULL */
static int mpc512x_psc_spi_do_probe(struct device *dev, u32 regaddr,
- u32 size, unsigned int irq,
- s16 bus_num)
+ u32 size, unsigned int irq)
{
struct fsl_spi_platform_data *pdata = dev_get_platdata(dev);
struct mpc512x_psc_spi *mps;
if (pdata == NULL) {
mps->cs_control = mpc512x_spi_cs_control;
- master->bus_num = bus_num;
} else {
mps->cs_control = pdata->cs_control;
master->bus_num = pdata->bus_num;
{
const u32 *regaddr_p;
u64 regaddr64, size64;
- s16 id = -1;
regaddr_p = of_get_address(op->dev.of_node, 0, &size64, NULL);
if (!regaddr_p) {
}
regaddr64 = of_translate_address(op->dev.of_node, regaddr_p);
- /* get PSC id (0..11, used by port_config) */
- id = of_alias_get_id(op->dev.of_node, "spi");
- if (id < 0) {
- dev_err(&op->dev, "no alias id for %s\n",
- op->dev.of_node->full_name);
- return id;
- }
-
return mpc512x_psc_spi_do_probe(&op->dev, (u32) regaddr64, (u32) size64,
- irq_of_parse_and_map(op->dev.of_node, 0), id);
+ irq_of_parse_and_map(op->dev.of_node, 0));
}
static int mpc512x_psc_spi_of_remove(struct platform_device *op)
*/
#include <linux/module.h>
-#include <linux/init.h>
#include <linux/types.h>
#include <linux/errno.h>
#include <linux/interrupt.h>
*/
#include <linux/module.h>
-#include <linux/init.h>
#include <linux/errno.h>
#include <linux/of_platform.h>
#include <linux/interrupt.h>
* spi_master ops
*/
-static int mpc52xx_spi_setup(struct spi_device *spi)
-{
- if (spi->bits_per_word % 8)
- return -EINVAL;
-
- if (spi->mode & ~(SPI_CPOL | SPI_CPHA | SPI_LSB_FIRST))
- return -EINVAL;
-
- return 0;
-}
-
static int mpc52xx_spi_transfer(struct spi_device *spi, struct spi_message *m)
{
struct mpc52xx_spi *ms = spi_master_get_devdata(spi->master);
goto err_alloc;
}
- master->setup = mpc52xx_spi_setup;
master->transfer = mpc52xx_spi_transfer;
master->mode_bits = SPI_CPOL | SPI_CPHA | SPI_LSB_FIRST;
+ master->bits_per_word_mask = SPI_BPW_MASK(8);
master->dev.of_node = op->dev.of_node;
platform_set_drvdata(op, master);
*/
#include <linux/kernel.h>
-#include <linux/init.h>
#include <linux/ioport.h>
#include <linux/of.h>
#include <linux/of_device.h>
{
struct mxs_spi *spi = spi_master_get_devdata(master);
struct mxs_ssp *ssp = &spi->ssp;
- struct spi_transfer *t, *tmp_t;
+ struct spi_transfer *t;
unsigned int flag;
int status = 0;
writel(mxs_spi_cs_to_reg(m->spi->chip_select),
ssp->base + HW_SSP_CTRL0 + STMP_OFFSET_REG_SET);
- list_for_each_entry_safe(t, tmp_t, &m->transfers, transfer_list) {
+ list_for_each_entry(t, &m->transfers, transfer_list) {
status = mxs_spi_setup_transfer(m->spi, t);
if (status)
iores = platform_get_resource(pdev, IORESOURCE_MEM, 0);
irq_err = platform_get_irq(pdev, 0);
if (irq_err < 0)
- return -EINVAL;
+ return irq_err;
base = devm_ioremap_resource(&pdev->dev, iores);
if (IS_ERR(base))
*/
#include <linux/module.h>
-#include <linux/init.h>
#include <linux/spinlock.h>
#include <linux/workqueue.h>
#include <linux/interrupt.h>
/* usi register bit */
#define ENINT (0x01 << 17)
#define ENFLG (0x01 << 16)
+#define SLEEP (0x0f << 12)
#define TXNUM (0x03 << 8)
+#define TXBITLEN (0x1f << 3)
#define TXNEG (0x01 << 2)
#define RXNEG (0x01 << 1)
#define LSB (0x01 << 10)
unsigned char *rx;
struct clk *clk;
struct spi_master *master;
- struct spi_device *curdev;
- struct device *dev;
struct nuc900_spi_info *pdata;
spinlock_t lock;
- struct resource *res;
};
static inline struct nuc900_spi *to_hw(struct spi_device *sdev)
}
}
-static void nuc900_spi_setup_txnum(struct nuc900_spi *hw,
- unsigned int txnum)
+static void nuc900_spi_setup_txnum(struct nuc900_spi *hw, unsigned int txnum)
{
unsigned int val;
unsigned long flags;
spin_lock_irqsave(&hw->lock, flags);
- val = __raw_readl(hw->regs + USI_CNT);
+ val = __raw_readl(hw->regs + USI_CNT) & ~TXNUM;
- if (!txnum)
- val &= ~TXNUM;
- else
+ if (txnum)
val |= txnum << 0x08;
__raw_writel(val, hw->regs + USI_CNT);
spin_lock_irqsave(&hw->lock, flags);
- val = __raw_readl(hw->regs + USI_CNT);
+ val = __raw_readl(hw->regs + USI_CNT) & ~TXBITLEN;
val |= (txbitlen << 0x03);
spin_lock_irqsave(&hw->lock, flags);
- val = __raw_readl(hw->regs + USI_CNT);
+ val = __raw_readl(hw->regs + USI_CNT) & ~SLEEP;
if (sleep)
val |= (sleep << 12);
- else
- val &= ~(0x0f << 12);
+
__raw_writel(val, hw->regs + USI_CNT);
spin_unlock_irqrestore(&hw->lock, flags);
{
struct nuc900_spi *hw;
struct spi_master *master;
+ struct resource *res;
int err = 0;
master = spi_alloc_master(&pdev->dev, sizeof(struct nuc900_spi));
hw = spi_master_get_devdata(master);
hw->master = master;
hw->pdata = dev_get_platdata(&pdev->dev);
- hw->dev = &pdev->dev;
if (hw->pdata == NULL) {
dev_err(&pdev->dev, "No platform data supplied\n");
hw->bitbang.chipselect = nuc900_spi_chipsel;
hw->bitbang.txrx_bufs = nuc900_spi_txrx;
- hw->res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- hw->regs = devm_ioremap_resource(&pdev->dev, hw->res);
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ hw->regs = devm_ioremap_resource(&pdev->dev, res);
if (IS_ERR(hw->regs)) {
err = PTR_ERR(hw->regs);
goto err_pdata;
* published by the Free Software Foundation.
*/
-#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/errno.h>
#include <linux/module.h>
/* setup the state for the bitbang driver */
hw->bitbang.master = master;
- if (!hw->bitbang.master)
- return err;
hw->bitbang.setup_transfer = tiny_spi_setup_transfer;
hw->bitbang.chipselect = tiny_spi_chipselect;
hw->bitbang.txrx_bufs = tiny_spi_txrx_bufs;
#include <linux/spi/spi.h>
#include <linux/module.h>
#include <linux/delay.h>
-#include <linux/init.h>
#include <linux/io.h>
#include <linux/of.h>
u64 cs_enax;
};
-struct octeon_spi_setup {
- u32 max_speed_hz;
- u8 chip_select;
- u8 mode;
- u8 bits_per_word;
-};
-
static void octeon_spi_wait_ready(struct octeon_spi *p)
{
union cvmx_mpi_sts mpi_sts;
struct spi_transfer *xfer,
bool last_xfer)
{
+ struct spi_device *spi = msg->spi;
union cvmx_mpi_cfg mpi_cfg;
union cvmx_mpi_tx mpi_tx;
unsigned int clkdiv;
int len;
int i;
- struct octeon_spi_setup *msg_setup = spi_get_ctldata(msg->spi);
-
- speed_hz = msg_setup->max_speed_hz;
- mode = msg_setup->mode;
+ mode = spi->mode;
cpha = mode & SPI_CPHA;
cpol = mode & SPI_CPOL;
- if (xfer->speed_hz)
- speed_hz = xfer->speed_hz;
-
- if (speed_hz > OCTEON_SPI_MAX_CLOCK_HZ)
- speed_hz = OCTEON_SPI_MAX_CLOCK_HZ;
+ speed_hz = xfer->speed_hz ? : spi->max_speed_hz;
clkdiv = octeon_get_io_clock_rate() / (2 * speed_hz);
mpi_cfg.s.cslate = cpha ? 1 : 0;
mpi_cfg.s.enable = 1;
- if (msg_setup->chip_select < 4)
- p->cs_enax |= 1ull << (12 + msg_setup->chip_select);
+ if (spi->chip_select < 4)
+ p->cs_enax |= 1ull << (12 + spi->chip_select);
mpi_cfg.u64 |= p->cs_enax;
if (mpi_cfg.u64 != p->last_cfg) {
cvmx_write_csr(p->register_base + OCTEON_SPI_DAT0 + (8 * i), d);
}
mpi_tx.u64 = 0;
- mpi_tx.s.csid = msg_setup->chip_select;
+ mpi_tx.s.csid = spi->chip_select;
mpi_tx.s.leavecs = 1;
mpi_tx.s.txnum = tx_buf ? OCTEON_SPI_MAX_BYTES : 0;
mpi_tx.s.totnum = OCTEON_SPI_MAX_BYTES;
}
mpi_tx.u64 = 0;
- mpi_tx.s.csid = msg_setup->chip_select;
+ mpi_tx.s.csid = spi->chip_select;
if (last_xfer)
mpi_tx.s.leavecs = xfer->cs_change;
else
int status = 0;
struct spi_transfer *xfer;
- /*
- * We better have set the configuration via a call to .setup
- * before we get here.
- */
- if (spi_get_ctldata(msg->spi) == NULL) {
- status = -EINVAL;
- goto err;
- }
-
list_for_each_entry(xfer, &msg->transfers, transfer_list) {
- bool last_xfer = &xfer->transfer_list == msg->transfers.prev;
+ bool last_xfer = list_is_last(&xfer->transfer_list,
+ &msg->transfers);
int r = octeon_spi_do_transfer(p, msg, xfer, last_xfer);
if (r < 0) {
status = r;
return status;
}
-static struct octeon_spi_setup *octeon_spi_new_setup(struct spi_device *spi)
-{
- struct octeon_spi_setup *setup = kzalloc(sizeof(*setup), GFP_KERNEL);
- if (!setup)
- return NULL;
-
- setup->max_speed_hz = spi->max_speed_hz;
- setup->chip_select = spi->chip_select;
- setup->mode = spi->mode;
- setup->bits_per_word = spi->bits_per_word;
- return setup;
-}
-
-static int octeon_spi_setup(struct spi_device *spi)
-{
- struct octeon_spi_setup *new_setup;
- struct octeon_spi_setup *old_setup = spi_get_ctldata(spi);
-
- new_setup = octeon_spi_new_setup(spi);
- if (!new_setup)
- return -ENOMEM;
-
- spi_set_ctldata(spi, new_setup);
- kfree(old_setup);
-
- return 0;
-}
-
-static void octeon_spi_cleanup(struct spi_device *spi)
-{
- struct octeon_spi_setup *old_setup = spi_get_ctldata(spi);
- spi_set_ctldata(spi, NULL);
- kfree(old_setup);
-}
-
static int octeon_spi_probe(struct platform_device *pdev)
{
struct resource *res_mem;
SPI_LSB_FIRST |
SPI_3WIRE;
- master->setup = octeon_spi_setup;
- master->cleanup = octeon_spi_cleanup;
master->transfer_one_message = octeon_spi_transfer_one_message;
master->bits_per_word_mask = SPI_BPW_MASK(8);
+ master->max_speed_hz = OCTEON_SPI_MAX_CLOCK_HZ;
master->dev.of_node = pdev->dev.of_node;
err = devm_spi_register_master(&pdev->dev, master);
*/
#include <linux/kernel.h>
-#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/module.h>
#include <linux/device.h>
* published by the Free Software Foundation.
*/
-#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/delay.h>
#include <linux/platform_device.h>
*/
#include <linux/module.h>
-#include <linux/init.h>
#include <linux/sched.h>
#include <linux/slab.h>
#include <linux/errno.h>
* published by the Free Software Foundation.
*/
-#include <linux/init.h>
#include <linux/device.h>
#include <linux/dma-mapping.h>
#include <linux/dmaengine.h>
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
-#include <linux/init.h>
#include <linux/delay.h>
#include <linux/device.h>
#include <linux/dma-mapping.h>
*
*/
-#include <linux/init.h>
#include <linux/spinlock.h>
#include <linux/workqueue.h>
#include <linux/interrupt.h>
#include <linux/delay.h>
#include <linux/err.h>
#include <linux/gpio.h>
-#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/io.h>
#include <linux/kernel.h>
*/
#include <linux/kernel.h>
-#include <linux/init.h>
#include <linux/delay.h>
#include <linux/spinlock.h>
#include <linux/workqueue.h>
#include <linux/dma-mapping.h>
#include <linux/dmapool.h>
#include <linux/err.h>
-#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/io.h>
#include <linux/kernel.h>
#include <linux/completion.h>
#include <linux/delay.h>
#include <linux/err.h>
-#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/io.h>
#include <linux/kernel.h>
#include <linux/dma-mapping.h>
#include <linux/dmapool.h>
#include <linux/err.h>
-#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/io.h>
#include <linux/kernel.h>
*/
#include <linux/kernel.h>
-#include <linux/init.h>
#include <linux/module.h>
#include <linux/delay.h>
#include <linux/i2c.h>
*/
#include <linux/module.h>
-#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/of.h>
#include <linux/platform_device.h>