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Merge remote-tracking branch 'spi/topic/pdata' into spi-next

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This commit is contained in:
Mark Brown 2013-09-01 13:49:03 +01:00
commit 68aa4cb337
30 changed files with 125 additions and 160 deletions
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2
drivers/spi/spi-altera.c
View File

@ -200,7 +200,7 @@ static irqreturn_t altera_spi_irq(int irq, void *dev)
static int altera_spi_probe(struct platform_device *pdev)
{
struct altera_spi_platform_data *platp = pdev->dev.platform_data;
struct altera_spi_platform_data *platp = dev_get_platdata(&pdev->dev);
struct altera_spi *hw;
struct spi_master *master;
struct resource *res;

2
drivers/spi/spi-ath79.c
View File

@ -221,7 +221,7 @@ static int ath79_spi_probe(struct platform_device *pdev)
sp = spi_master_get_devdata(master);
platform_set_drvdata(pdev, sp);
pdata = pdev->dev.platform_data;
pdata = dev_get_platdata(&pdev->dev);
master->bits_per_word_mask = SPI_BPW_RANGE_MASK(1, 32);
master->setup = ath79_spi_setup;

2
drivers/spi/spi-au1550.c
View File

@ -776,7 +776,7 @@ static int au1550_spi_probe(struct platform_device *pdev)
hw = spi_master_get_devdata(master);
hw->master = spi_master_get(master);
hw->pdata = pdev->dev.platform_data;
hw->pdata = dev_get_platdata(&pdev->dev);
hw->dev = &pdev->dev;
if (hw->pdata == NULL) {

8
drivers/spi/spi-bcm63xx.c
View File

@ -353,7 +353,7 @@ static int bcm63xx_spi_probe(struct platform_device *pdev)
{
struct resource *r;
struct device *dev = &pdev->dev;
struct bcm63xx_spi_pdata *pdata = pdev->dev.platform_data;
struct bcm63xx_spi_pdata *pdata = dev_get_platdata(&pdev->dev);
int irq;
struct spi_master *master;
struct clk *clk;
@ -474,8 +474,7 @@ static int bcm63xx_spi_remove(struct platform_device *pdev)
#ifdef CONFIG_PM
static int bcm63xx_spi_suspend(struct device *dev)
{
struct spi_master *master =
platform_get_drvdata(to_platform_device(dev));
struct spi_master *master = dev_get_drvdata(dev);
struct bcm63xx_spi *bs = spi_master_get_devdata(master);
spi_master_suspend(master);
@ -487,8 +486,7 @@ static int bcm63xx_spi_suspend(struct device *dev)
static int bcm63xx_spi_resume(struct device *dev)
{
struct spi_master *master =
platform_get_drvdata(to_platform_device(dev));
struct spi_master *master = dev_get_drvdata(dev);
struct bcm63xx_spi *bs = spi_master_get_devdata(master);
clk_prepare_enable(bs->clk);

2
drivers/spi/spi-bfin-sport.c
View File

@ -756,7 +756,7 @@ static int bfin_sport_spi_probe(struct platform_device *pdev)
struct bfin_sport_spi_master_data *drv_data;
int status;
platform_info = dev->platform_data;
platform_info = dev_get_platdata(dev);
/* Allocate master with space for drv_data */
master = spi_alloc_master(dev, sizeof(*master) + 16);

2
drivers/spi/spi-bfin-v3.c
View File

@ -773,7 +773,7 @@ static irqreturn_t bfin_spi_rx_dma_isr(int irq, void *dev_id)
static int bfin_spi_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct bfin_spi3_master *info = dev->platform_data;
struct bfin_spi3_master *info = dev_get_platdata(dev);
struct spi_master *master;
struct bfin_spi_master *drv_data;
struct resource *mem, *res;

2
drivers/spi/spi-bfin5xx.c
View File

@ -1271,7 +1271,7 @@ static int bfin_spi_probe(struct platform_device *pdev)
struct resource *res;
int status = 0;
platform_info = dev->platform_data;
platform_info = dev_get_platdata(dev);
/* Allocate master with space for drv_data */
master = spi_alloc_master(dev, sizeof(*drv_data));

6
drivers/spi/spi-coldfire-qspi.c
View File

@ -400,7 +400,7 @@ static int mcfqspi_probe(struct platform_device *pdev)
struct mcfqspi_platform_data *pdata;
int status;
pdata = pdev->dev.platform_data;
pdata = dev_get_platdata(&pdev->dev);
if (!pdata) {
dev_dbg(&pdev->dev, "platform data is missing\n");
return -ENOENT;
@ -558,7 +558,7 @@ static int mcfqspi_resume(struct device *dev)
#ifdef CONFIG_PM_RUNTIME
static int mcfqspi_runtime_suspend(struct device *dev)
{
struct mcfqspi *mcfqspi = platform_get_drvdata(to_platform_device(dev));
struct mcfqspi *mcfqspi = dev_get_drvdata(dev);
clk_disable(mcfqspi->clk);
@ -567,7 +567,7 @@ static int mcfqspi_runtime_suspend(struct device *dev)
static int mcfqspi_runtime_resume(struct device *dev)
{
struct mcfqspi *mcfqspi = platform_get_drvdata(to_platform_device(dev));
struct mcfqspi *mcfqspi = dev_get_drvdata(dev);
clk_enable(mcfqspi->clk);

4
drivers/spi/spi-davinci.c
View File

@ -872,8 +872,8 @@ static int davinci_spi_probe(struct platform_device *pdev)
goto free_master;
}
if (pdev->dev.platform_data) {
pdata = pdev->dev.platform_data;
if (dev_get_platdata(&pdev->dev)) {
pdata = dev_get_platdata(&pdev->dev);
dspi->pdata = *pdata;
} else {
/* update dspi pdata with that from the DT */

2
drivers/spi/spi-ep93xx.c
View File

@ -874,7 +874,7 @@ static int ep93xx_spi_probe(struct platform_device *pdev)
int irq;
int error;
info = pdev->dev.platform_data;
info = dev_get_platdata(&pdev->dev);
irq = platform_get_irq(pdev, 0);
if (irq < 0) {

4
drivers/spi/spi-fsl-espi.c
View File

@ -584,7 +584,7 @@ static void fsl_espi_remove(struct mpc8xxx_spi *mspi)
static struct spi_master * fsl_espi_probe(struct device *dev,
struct resource *mem, unsigned int irq)
{
struct fsl_spi_platform_data *pdata = dev->platform_data;
struct fsl_spi_platform_data *pdata = dev_get_platdata(dev);
struct spi_master *master;
struct mpc8xxx_spi *mpc8xxx_spi;
struct fsl_espi_reg *reg_base;
@ -665,7 +665,7 @@ err:
static int of_fsl_espi_get_chipselects(struct device *dev)
{
struct device_node *np = dev->of_node;
struct fsl_spi_platform_data *pdata = dev->platform_data;
struct fsl_spi_platform_data *pdata = dev_get_platdata(dev);
const u32 *prop;
int len;

2
drivers/spi/spi-fsl-lib.c
View File

@ -122,7 +122,7 @@ const char *mpc8xxx_spi_strmode(unsigned int flags)
int mpc8xxx_spi_probe(struct device *dev, struct resource *mem,
unsigned int irq)
{
struct fsl_spi_platform_data *pdata = dev->platform_data;
struct fsl_spi_platform_data *pdata = dev_get_platdata(dev);
struct spi_master *master;
struct mpc8xxx_spi *mpc8xxx_spi;
int ret = 0;

13
drivers/spi/spi-fsl-spi.c
View File

@ -574,7 +574,7 @@ static void fsl_spi_grlib_cs_control(struct spi_device *spi, bool on)
static void fsl_spi_grlib_probe(struct device *dev)
{
struct fsl_spi_platform_data *pdata = dev->platform_data;
struct fsl_spi_platform_data *pdata = dev_get_platdata(dev);
struct spi_master *master = dev_get_drvdata(dev);
struct mpc8xxx_spi *mpc8xxx_spi = spi_master_get_devdata(master);
struct fsl_spi_reg *reg_base = mpc8xxx_spi->reg_base;
@ -600,7 +600,7 @@ static void fsl_spi_grlib_probe(struct device *dev)
static struct spi_master * fsl_spi_probe(struct device *dev,
struct resource *mem, unsigned int irq)
{
struct fsl_spi_platform_data *pdata = dev->platform_data;
struct fsl_spi_platform_data *pdata = dev_get_platdata(dev);
struct spi_master *master;
struct mpc8xxx_spi *mpc8xxx_spi;
struct fsl_spi_reg *reg_base;
@ -700,7 +700,8 @@ err:
static void fsl_spi_cs_control(struct spi_device *spi, bool on)
{
struct device *dev = spi->dev.parent->parent;
struct mpc8xxx_spi_probe_info *pinfo = to_of_pinfo(dev->platform_data);
struct fsl_spi_platform_data *pdata = dev_get_platdata(dev);
struct mpc8xxx_spi_probe_info *pinfo = to_of_pinfo(pdata);
u16 cs = spi->chip_select;
int gpio = pinfo->gpios[cs];
bool alow = pinfo->alow_flags[cs];
@ -711,7 +712,7 @@ static void fsl_spi_cs_control(struct spi_device *spi, bool on)
static int of_fsl_spi_get_chipselects(struct device *dev)
{
struct device_node *np = dev->of_node;
struct fsl_spi_platform_data *pdata = dev->platform_data;
struct fsl_spi_platform_data *pdata = dev_get_platdata(dev);
struct mpc8xxx_spi_probe_info *pinfo = to_of_pinfo(pdata);
int ngpios;
int i = 0;
@ -790,7 +791,7 @@ err_alloc_flags:
static int of_fsl_spi_free_chipselects(struct device *dev)
{
struct fsl_spi_platform_data *pdata = dev->platform_data;
struct fsl_spi_platform_data *pdata = dev_get_platdata(dev);
struct mpc8xxx_spi_probe_info *pinfo = to_of_pinfo(pdata);
int i;
@ -889,7 +890,7 @@ static int plat_mpc8xxx_spi_probe(struct platform_device *pdev)
int irq;
struct spi_master *master;
if (!pdev->dev.platform_data)
if (!dev_get_platdata(&pdev->dev))
return -EINVAL;
mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);

4
drivers/spi/spi-gpio.c
View File

@ -420,7 +420,7 @@ static int spi_gpio_probe(struct platform_device *pdev)
if (status > 0)
use_of = 1;
pdata = pdev->dev.platform_data;
pdata = dev_get_platdata(&pdev->dev);
#ifdef GENERIC_BITBANG
if (!pdata || !pdata->num_chipselect)
return -ENODEV;
@ -506,7 +506,7 @@ static int spi_gpio_remove(struct platform_device *pdev)
int status;
spi_gpio = platform_get_drvdata(pdev);
pdata = pdev->dev.platform_data;
pdata = dev_get_platdata(&pdev->dev);
/* stop() unregisters child devices too */
status = spi_bitbang_stop(&spi_gpio->bitbang);

2
drivers/spi/spi-mpc512x-psc.c
View File

@ -469,7 +469,7 @@ static int mpc512x_psc_spi_do_probe(struct device *dev, u32 regaddr,
u32 size, unsigned int irq,
s16 bus_num)
{
struct fsl_spi_platform_data *pdata = dev->platform_data;
struct fsl_spi_platform_data *pdata = dev_get_platdata(dev);
struct mpc512x_psc_spi *mps;
struct spi_master *master;
int ret;

2
drivers/spi/spi-mpc52xx-psc.c
View File

@ -366,7 +366,7 @@ static irqreturn_t mpc52xx_psc_spi_isr(int irq, void *dev_id)
static int mpc52xx_psc_spi_do_probe(struct device *dev, u32 regaddr,
u32 size, unsigned int irq, s16 bus_num)
{
struct fsl_spi_platform_data *pdata = dev->platform_data;
struct fsl_spi_platform_data *pdata = dev_get_platdata(dev);
struct mpc52xx_psc_spi *mps;
struct spi_master *master;
int ret;

2
drivers/spi/spi-nuc900.c
View File

@ -350,7 +350,7 @@ static int nuc900_spi_probe(struct platform_device *pdev)
hw = spi_master_get_devdata(master);
hw->master = spi_master_get(master);
hw->pdata = pdev->dev.platform_data;
hw->pdata = dev_get_platdata(&pdev->dev);
hw->dev = &pdev->dev;
if (hw->pdata == NULL) {

2
drivers/spi/spi-oc-tiny.c
View File

@ -285,7 +285,7 @@ static int tiny_spi_of_probe(struct platform_device *pdev)
static int tiny_spi_probe(struct platform_device *pdev)
{
struct tiny_spi_platform_data *platp = pdev->dev.platform_data;
struct tiny_spi_platform_data *platp = dev_get_platdata(&pdev->dev);
struct tiny_spi *hw;
struct spi_master *master;
struct resource *res;

2
drivers/spi/spi-omap-100k.c
View File

@ -441,7 +441,7 @@ static int omap1_spi100k_probe(struct platform_device *pdev)
* You should allocate this with ioremap() before initializing
* the SPI.
*/
spi100k->base = (void __iomem *) pdev->dev.platform_data;
spi100k->base = (void __iomem *)dev_get_platdata(&pdev->dev);
spi100k->ick = devm_clk_get(&pdev->dev, "ick");
if (IS_ERR(spi100k->ick)) {

2
drivers/spi/spi-omap2-mcspi.c
View File

@ -1340,7 +1340,7 @@ static int omap2_mcspi_probe(struct platform_device *pdev)
if (of_get_property(node, "ti,pindir-d0-out-d1-in", NULL))
mcspi->pin_dir = MCSPI_PINDIR_D0_OUT_D1_IN;
} else {
pdata = pdev->dev.platform_data;
pdata = dev_get_platdata(&pdev->dev);
master->num_chipselect = pdata->num_cs;
if (pdev->id != -1)
master->bus_num = pdev->id;

3
drivers/spi/spi-pl022.c
View File

@ -2091,7 +2091,8 @@ pl022_platform_data_dt_get(struct device *dev)
static int pl022_probe(struct amba_device *adev, const struct amba_id *id)
{
struct device *dev = &adev->dev;
struct pl022_ssp_controller *platform_info = adev->dev.platform_data;
struct pl022_ssp_controller *platform_info =
dev_get_platdata(&adev->dev);
struct spi_master *master;
struct pl022 *pl022 = NULL; /*Data for this driver */
struct device_node *np = adev->dev.of_node;

19
drivers/spi/spi-rspi.c
View File

@ -564,8 +564,12 @@ static void rspi_work(struct work_struct *work)
unsigned long flags;
int ret;
spin_lock_irqsave(&rspi->lock, flags);
while (!list_empty(&rspi->queue)) {
while (1) {
spin_lock_irqsave(&rspi->lock, flags);
if (list_empty(&rspi->queue)) {
spin_unlock_irqrestore(&rspi->lock, flags);
break;
}
mesg = list_entry(rspi->queue.next, struct spi_message, queue);
list_del_init(&mesg->queue);
spin_unlock_irqrestore(&rspi->lock, flags);
@ -595,8 +599,6 @@ static void rspi_work(struct work_struct *work)
mesg->status = 0;
mesg->complete(mesg->context);
spin_lock_irqsave(&rspi->lock, flags);
}
return;
@ -664,12 +666,13 @@ static irqreturn_t rspi_irq(int irq, void *_sr)
static int rspi_request_dma(struct rspi_data *rspi,
struct platform_device *pdev)
{
struct rspi_plat_data *rspi_pd = pdev->dev.platform_data;
struct rspi_plat_data *rspi_pd = dev_get_platdata(&pdev->dev);
struct resource *res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
dma_cap_mask_t mask;
struct dma_slave_config cfg;
int ret;
if (!rspi_pd)
if (!res || !rspi_pd)
return 0; /* The driver assumes no error. */
rspi->dma_width_16bit = rspi_pd->dma_width_16bit;
@ -683,6 +686,8 @@ static int rspi_request_dma(struct rspi_data *rspi,
if (rspi->chan_rx) {
cfg.slave_id = rspi_pd->dma_rx_id;
cfg.direction = DMA_DEV_TO_MEM;
cfg.dst_addr = 0;
cfg.src_addr = res->start + RSPI_SPDR;
ret = dmaengine_slave_config(rspi->chan_rx, &cfg);
if (!ret)
dev_info(&pdev->dev, "Use DMA when rx.\n");
@ -698,6 +703,8 @@ static int rspi_request_dma(struct rspi_data *rspi,
if (rspi->chan_tx) {
cfg.slave_id = rspi_pd->dma_tx_id;
cfg.direction = DMA_MEM_TO_DEV;
cfg.dst_addr = res->start + RSPI_SPDR;
cfg.src_addr = 0;
ret = dmaengine_slave_config(rspi->chan_tx, &cfg);
if (!ret)
dev_info(&pdev->dev, "Use DMA when tx\n");

6
drivers/spi/spi-s3c24xx.c
View File

@ -525,7 +525,7 @@ static int s3c24xx_spi_probe(struct platform_device *pdev)
memset(hw, 0, sizeof(struct s3c24xx_spi));
hw->master = spi_master_get(master);
hw->pdata = pdata = pdev->dev.platform_data;
hw->pdata = pdata = dev_get_platdata(&pdev->dev);
hw->dev = &pdev->dev;
if (pdata == NULL) {
@ -690,7 +690,7 @@ static int s3c24xx_spi_remove(struct platform_device *dev)
static int s3c24xx_spi_suspend(struct device *dev)
{
struct s3c24xx_spi *hw = platform_get_drvdata(to_platform_device(dev));
struct s3c24xx_spi *hw = dev_get_drvdata(dev);
if (hw->pdata && hw->pdata->gpio_setup)
hw->pdata->gpio_setup(hw->pdata, 0);
@ -701,7 +701,7 @@ static int s3c24xx_spi_suspend(struct device *dev)
static int s3c24xx_spi_resume(struct device *dev)
{
struct s3c24xx_spi *hw = platform_get_drvdata(to_platform_device(dev));
struct s3c24xx_spi *hw = dev_get_drvdata(dev);
s3c24xx_spi_initialsetup(hw);
return 0;

4
drivers/spi/spi-s3c64xx.c
View File

@ -1275,7 +1275,7 @@ static struct s3c64xx_spi_info *s3c64xx_spi_parse_dt(struct device *dev)
#else
static struct s3c64xx_spi_info *s3c64xx_spi_parse_dt(struct device *dev)
{
return dev->platform_data;
return dev_get_platdata(dev);
}
#endif
@ -1300,7 +1300,7 @@ static int s3c64xx_spi_probe(struct platform_device *pdev)
struct resource *mem_res;
struct resource *res;
struct s3c64xx_spi_driver_data *sdd;
struct s3c64xx_spi_info *sci = pdev->dev.platform_data;
struct s3c64xx_spi_info *sci = dev_get_platdata(&pdev->dev);
struct spi_master *master;
int ret, irq;
char clk_name[16];

2
drivers/spi/spi-sh-msiof.c
View File

@ -645,7 +645,7 @@ static int sh_msiof_spi_probe(struct platform_device *pdev)
if (pdev->dev.of_node)
p->info = sh_msiof_spi_parse_dt(&pdev->dev);
else
p->info = pdev->dev.platform_data;
p->info = dev_get_platdata(&pdev->dev);
if (!p->info) {
dev_err(&pdev->dev, "failed to obtain device info\n");

2
drivers/spi/spi-sh-sci.c
View File

@ -130,7 +130,7 @@ static int sh_sci_spi_probe(struct platform_device *dev)
sp = spi_master_get_devdata(master);
platform_set_drvdata(dev, sp);
sp->info = dev->dev.platform_data;
sp->info = dev_get_platdata(&dev->dev);
/* setup spi bitbang adaptor */
sp->bitbang.master = spi_master_get(master);

6
drivers/spi/spi-sirf.c
View File

@ -599,8 +599,7 @@ static int spi_sirfsoc_remove(struct platform_device *pdev)
#ifdef CONFIG_PM
static int spi_sirfsoc_suspend(struct device *dev)
{
struct platform_device *pdev = to_platform_device(dev);
struct spi_master *master = platform_get_drvdata(pdev);
struct spi_master *master = dev_get_drvdata(dev);
struct sirfsoc_spi *sspi = spi_master_get_devdata(master);
clk_disable(sspi->clk);
@ -609,8 +608,7 @@ static int spi_sirfsoc_suspend(struct device *dev)
static int spi_sirfsoc_resume(struct device *dev)
{
struct platform_device *pdev = to_platform_device(dev);
struct spi_master *master = platform_get_drvdata(pdev);
struct spi_master *master = dev_get_drvdata(dev);
struct sirfsoc_spi *sspi = spi_master_get_devdata(master);
clk_enable(sspi->clk);

2
drivers/spi/spi-ti-ssp.c
View File

@ -283,7 +283,7 @@ static int ti_ssp_spi_probe(struct platform_device *pdev)
struct device *dev = &pdev->dev;
int error = 0;
pdata = dev->platform_data;
pdata = dev_get_platdata(dev);
if (!pdata) {
dev_err(dev, "platform data not found\n");
return -EINVAL;

2
drivers/spi/spi-tle62x0.c
View File

@ -247,7 +247,7 @@ static int tle62x0_probe(struct spi_device *spi)
int ptr;
int ret;
pdata = spi->dev.platform_data;
pdata = dev_get_platdata(&spi->dev);
if (pdata == NULL) {
dev_err(&spi->dev, "no device data specified\n");
return -EINVAL;

172
drivers/spi/spi-xilinx.c
View File

@ -80,10 +80,9 @@ struct xilinx_spi {
/* bitbang has to be first */
struct spi_bitbang bitbang;
struct completion done;
struct resource mem; /* phys mem */
void __iomem *regs; /* virt. address of the control registers */
u32 irq;
int irq;
u8 *rx_ptr; /* pointer in the Tx buffer */
const u8 *tx_ptr; /* pointer in the Rx buffer */
@ -340,17 +339,34 @@ static const struct of_device_id xilinx_spi_of_match[] = {
};
MODULE_DEVICE_TABLE(of, xilinx_spi_of_match);
struct spi_master *xilinx_spi_init(struct device *dev, struct resource *mem,
u32 irq, s16 bus_num, int num_cs, int bits_per_word)
static int xilinx_spi_probe(struct platform_device *pdev)
{
struct spi_master *master;
struct xilinx_spi *xspi;
int ret;
struct xspi_platform_data *pdata;
struct resource *res;
int ret, num_cs = 0, bits_per_word = 8;
struct spi_master *master;
u32 tmp;
u8 i;
master = spi_alloc_master(dev, sizeof(struct xilinx_spi));
pdata = dev_get_platdata(&pdev->dev);
if (pdata) {
num_cs = pdata->num_chipselect;
bits_per_word = pdata->bits_per_word;
} else {
of_property_read_u32(pdev->dev.of_node, "xlnx,num-ss-bits",
&num_cs);
}
if (!num_cs) {
dev_err(&pdev->dev,
"Missing slave select configuration data\n");
return -EINVAL;
}
master = spi_alloc_master(&pdev->dev, sizeof(struct xilinx_spi));
if (!master)
return NULL;
return -ENODEV;
/* the spi->mode bits understood by this driver: */
master->mode_bits = SPI_CPOL | SPI_CPHA;
@ -362,22 +378,16 @@ struct spi_master *xilinx_spi_init(struct device *dev, struct resource *mem,
xspi->bitbang.txrx_bufs = xilinx_spi_txrx_bufs;
init_completion(&xspi->done);
if (!request_mem_region(mem->start, resource_size(mem),
XILINX_SPI_NAME))
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
xspi->regs = devm_ioremap_resource(&pdev->dev, res);
if (IS_ERR(xspi->regs)) {
ret = PTR_ERR(xspi->regs);
goto put_master;
xspi->regs = ioremap(mem->start, resource_size(mem));
if (xspi->regs == NULL) {
dev_warn(dev, "ioremap failure\n");
goto map_failed;
}
master->bus_num = bus_num;
master->bus_num = pdev->dev.id;
master->num_chipselect = num_cs;
master->dev.of_node = dev->of_node;
xspi->mem = *mem;
xspi->irq = irq;
master->dev.of_node = pdev->dev.of_node;
/*
* Detect endianess on the IP via loop bit in CR. Detection
@ -407,113 +417,63 @@ struct spi_master *xilinx_spi_init(struct device *dev, struct resource *mem,
} else if (xspi->bits_per_word == 32) {
xspi->tx_fn = xspi_tx32;
xspi->rx_fn = xspi_rx32;
} else
goto unmap_io;
} else {
ret = -EINVAL;
goto put_master;
}
/* SPI controller initializations */
xspi_init_hw(xspi);
xspi->irq = platform_get_irq(pdev, 0);
if (xspi->irq < 0) {
ret = xspi->irq;
goto put_master;
}
/* Register for SPI Interrupt */
ret = request_irq(xspi->irq, xilinx_spi_irq, 0, XILINX_SPI_NAME, xspi);
ret = devm_request_irq(&pdev->dev, xspi->irq, xilinx_spi_irq, 0,
dev_name(&pdev->dev), xspi);
if (ret)
goto unmap_io;
goto put_master;
ret = spi_bitbang_start(&xspi->bitbang);
if (ret) {
dev_err(dev, "spi_bitbang_start FAILED\n");
goto free_irq;
dev_err(&pdev->dev, "spi_bitbang_start FAILED\n");
goto put_master;
}
dev_info(dev, "at 0x%08llX mapped to 0x%p, irq=%d\n",
(unsigned long long)mem->start, xspi->regs, xspi->irq);
return master;
free_irq:
free_irq(xspi->irq, xspi);
unmap_io:
iounmap(xspi->regs);
map_failed:
release_mem_region(mem->start, resource_size(mem));
put_master:
spi_master_put(master);
return NULL;
}
EXPORT_SYMBOL(xilinx_spi_init);
void xilinx_spi_deinit(struct spi_master *master)
{
struct xilinx_spi *xspi;
xspi = spi_master_get_devdata(master);
spi_bitbang_stop(&xspi->bitbang);
free_irq(xspi->irq, xspi);
iounmap(xspi->regs);
release_mem_region(xspi->mem.start, resource_size(&xspi->mem));
spi_master_put(xspi->bitbang.master);
}
EXPORT_SYMBOL(xilinx_spi_deinit);
static int xilinx_spi_probe(struct platform_device *dev)
{
struct xspi_platform_data *pdata;
struct resource *r;
int irq, num_cs = 0, bits_per_word = 8;
struct spi_master *master;
u8 i;
pdata = dev->dev.platform_data;
if (pdata) {
num_cs = pdata->num_chipselect;
bits_per_word = pdata->bits_per_word;
}
#ifdef CONFIG_OF
if (dev->dev.of_node) {
const __be32 *prop;
int len;
/* number of slave select bits is required */
prop = of_get_property(dev->dev.of_node, "xlnx,num-ss-bits",
&len);
if (prop && len >= sizeof(*prop))
num_cs = __be32_to_cpup(prop);
}
#endif
if (!num_cs) {
dev_err(&dev->dev, "Missing slave select configuration data\n");
return -EINVAL;
}
r = platform_get_resource(dev, IORESOURCE_MEM, 0);
if (!r)
return -ENODEV;
irq = platform_get_irq(dev, 0);
if (irq < 0)
return -ENXIO;
master = xilinx_spi_init(&dev->dev, r, irq, dev->id, num_cs,
bits_per_word);
if (!master)
return -ENODEV;
dev_info(&pdev->dev, "at 0x%08llX mapped to 0x%p, irq=%d\n",
(unsigned long long)res->start, xspi->regs, xspi->irq);
if (pdata) {
for (i = 0; i < pdata->num_devices; i++)
spi_new_device(master, pdata->devices + i);
}
platform_set_drvdata(dev, master);
platform_set_drvdata(pdev, master);
return 0;
put_master:
spi_master_put(master);
return ret;
}
static int xilinx_spi_remove(struct platform_device *dev)
static int xilinx_spi_remove(struct platform_device *pdev)
{
xilinx_spi_deinit(platform_get_drvdata(dev));
struct spi_master *master = platform_get_drvdata(pdev);
struct xilinx_spi *xspi = spi_master_get_devdata(master);
void __iomem *regs_base = xspi->regs;
spi_bitbang_stop(&xspi->bitbang);
/* Disable all the interrupts just in case */
xspi->write_fn(0, regs_base + XIPIF_V123B_IIER_OFFSET);
/* Disable the global IPIF interrupt */
xspi->write_fn(0, regs_base + XIPIF_V123B_DGIER_OFFSET);
spi_master_put(xspi->bitbang.master);
return 0;
}