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spi: fsl-espi: remove remaining usage of struct fsl_spi_platform_data

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Use master->num_chipselect directly instead of pdata->max_chipselect.
In this context let of_fsl_espi_get_chipselects return max_chipselect.

This change allows us to get rid of struct fsl_spi_platform_data
completely in the fsl-espi driver.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Heiner Kallweit 2016-11-13 14:36:39 +01:00 committed by Mark Brown
parent 2808f778de
commit 7454346b0c
1 changed files with 11 additions and 15 deletions
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26
drivers/spi/spi-fsl-espi.c
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@ -573,9 +573,8 @@ static size_t fsl_espi_max_message_size(struct spi_device *spi)
}
static int fsl_espi_probe(struct device *dev, struct resource *mem,
unsigned int irq)
unsigned int irq, unsigned int num_cs)
{
struct fsl_spi_platform_data *pdata = dev_get_platdata(dev);
struct spi_master *master;
struct mpc8xxx_spi *mpc8xxx_spi;
struct device_node *nc;
@ -597,6 +596,7 @@ static int fsl_espi_probe(struct device *dev, struct resource *mem,
master->transfer_one_message = fsl_espi_do_one_msg;
master->auto_runtime_pm = true;
master->max_message_size = fsl_espi_max_message_size;
master->num_chipselect = num_cs;
mpc8xxx_spi = spi_master_get_devdata(master);
spin_lock_init(&mpc8xxx_spi->lock);
@ -636,7 +636,7 @@ static int fsl_espi_probe(struct device *dev, struct resource *mem,
for_each_available_child_of_node(master->dev.of_node, nc) {
/* get chip select */
ret = of_property_read_u32(nc, "reg", &cs);
if (ret || cs >= pdata->max_chipselect)
if (ret || cs >= num_cs)
continue;
csmode = CSMODE_INIT_VAL;
@ -695,19 +695,16 @@ static int fsl_espi_probe(struct device *dev, struct resource *mem,
static int of_fsl_espi_get_chipselects(struct device *dev)
{
struct device_node *np = dev->of_node;
struct fsl_spi_platform_data *pdata = dev_get_platdata(dev);
u32 num_cs;
int ret;
ret = of_property_read_u32(np, "fsl,espi-num-chipselects", &num_cs);
if (ret) {
dev_err(dev, "No 'fsl,espi-num-chipselects' property\n");
return -EINVAL;
return 0;
}
pdata->max_chipselect = num_cs;
return 0;
return num_cs;
}
static int of_fsl_espi_probe(struct platform_device *ofdev)
@ -715,16 +712,16 @@ static int of_fsl_espi_probe(struct platform_device *ofdev)
struct device *dev = &ofdev->dev;
struct device_node *np = ofdev->dev.of_node;
struct resource mem;
unsigned int irq;
unsigned int irq, num_cs;
int ret;
ret = of_mpc8xxx_spi_probe(ofdev);
if (ret)
return ret;
ret = of_fsl_espi_get_chipselects(dev);
if (ret)
return ret;
num_cs = of_fsl_espi_get_chipselects(dev);
if (!num_cs)
return -EINVAL;
ret = of_address_to_resource(np, 0, &mem);
if (ret)
@ -734,7 +731,7 @@ static int of_fsl_espi_probe(struct platform_device *ofdev)
if (!irq)
return -EINVAL;
return fsl_espi_probe(dev, &mem, irq);
return fsl_espi_probe(dev, &mem, irq, num_cs);
}
static int of_fsl_espi_remove(struct platform_device *dev)
@ -765,7 +762,6 @@ static int of_fsl_espi_suspend(struct device *dev)
static int of_fsl_espi_resume(struct device *dev)
{
struct fsl_spi_platform_data *pdata = dev_get_platdata(dev);
struct spi_master *master = dev_get_drvdata(dev);
struct mpc8xxx_spi *mpc8xxx_spi;
u32 regval;
@ -780,7 +776,7 @@ static int of_fsl_espi_resume(struct device *dev)
fsl_espi_write_reg(mpc8xxx_spi, ESPI_SPIE, 0xffffffff);
/* Init eSPI CS mode register */
for (i = 0; i < pdata->max_chipselect; i++)
for (i = 0; i < master->num_chipselect; i++)
fsl_espi_write_reg(mpc8xxx_spi, ESPI_SPMODEx(i),
CSMODE_INIT_VAL);