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Merge remote-tracking branches 'spi/topic/altera', 'spi/topic/atmel', 'spi/topic/au1550', 'spi/topic/bcm63xx', 'spi/topic/bcm63xx-hsspi', 'spi/topic/bfin5xx', 'spi/topic/bitbang' and 'spi/topic/bpw' into spi-next

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This commit is contained in:
Mark Brown 2014-03-30 00:50:57 +00:00
commit 0f38af451f
13 changed files with 31 additions and 71 deletions
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6
drivers/spi/spi-altera.c
View File

@ -200,7 +200,6 @@ 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 = dev_get_platdata(&pdev->dev);
struct altera_spi *hw;
struct spi_master *master;
struct resource *res;
@ -214,6 +213,8 @@ static int altera_spi_probe(struct platform_device *pdev)
master->bus_num = pdev->id;
master->num_chipselect = 16;
master->mode_bits = SPI_CS_HIGH;
master->bits_per_word_mask = SPI_BPW_RANGE_MASK(1, 16);
master->dev.of_node = pdev->dev.of_node;
hw = spi_master_get_devdata(master);
platform_set_drvdata(pdev, hw);
@ -245,9 +246,6 @@ static int altera_spi_probe(struct platform_device *pdev)
if (err)
goto exit;
}
/* find platform data */
if (!platp)
hw->bitbang.master->dev.of_node = pdev->dev.of_node;
/* register our spi controller */
err = spi_bitbang_start(&hw->bitbang);

26
drivers/spi/spi-atmel.c
View File

@ -26,6 +26,7 @@
#include <linux/io.h>
#include <linux/gpio.h>
#include <linux/pinctrl/consumer.h>
/* SPI register offsets */
#define SPI_CR 0x0000
@ -1087,14 +1088,6 @@ static int atmel_spi_one_transfer(struct spi_master *master,
}
}
if (xfer->bits_per_word > 8) {
if (xfer->len % 2) {
dev_dbg(&spi->dev,
"buffer len should be 16 bits aligned\n");
return -EINVAL;
}
}
/*
* DMA map early, for performance (empties dcache ASAP) and
* better fault reporting.
@ -1221,9 +1214,6 @@ static int atmel_spi_transfer_one_message(struct spi_master *master,
dev_dbg(&spi->dev, "new message %p submitted for %s\n",
msg, dev_name(&spi->dev));
if (unlikely(list_empty(&msg->transfers)))
return -EINVAL;
atmel_spi_lock(as);
cs_activate(as, spi);
@ -1244,10 +1234,10 @@ static int atmel_spi_transfer_one_message(struct spi_master *master,
list_for_each_entry(xfer, &msg->transfers, transfer_list) {
dev_dbg(&spi->dev,
" xfer %p: len %u tx %p/%08x rx %p/%08x\n",
" xfer %p: len %u tx %p/%pad rx %p/%pad\n",
xfer, xfer->len,
xfer->tx_buf, xfer->tx_dma,
xfer->rx_buf, xfer->rx_dma);
xfer->tx_buf, &xfer->tx_dma,
xfer->rx_buf, &xfer->rx_dma);
}
msg_done:
@ -1303,6 +1293,9 @@ static int atmel_spi_probe(struct platform_device *pdev)
struct spi_master *master;
struct atmel_spi *as;
/* Select default pin state */
pinctrl_pm_select_default_state(&pdev->dev);
regs = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!regs)
return -ENXIO;
@ -1465,6 +1458,9 @@ static int atmel_spi_suspend(struct device *dev)
}
clk_disable_unprepare(as->clk);
pinctrl_pm_select_sleep_state(dev);
return 0;
}
@ -1474,6 +1470,8 @@ static int atmel_spi_resume(struct device *dev)
struct atmel_spi *as = spi_master_get_devdata(master);
int ret;
pinctrl_pm_select_default_state(dev);
clk_prepare_enable(as->clk);
/* Start the queue running */

30
drivers/spi/spi-au1550.c
View File

@ -55,8 +55,6 @@ struct au1550_spi {
volatile psc_spi_t __iomem *regs;
int irq;
unsigned freq_max;
unsigned freq_min;
unsigned len;
unsigned tx_count;
@ -248,11 +246,8 @@ static int au1550_spi_setupxfer(struct spi_device *spi, struct spi_transfer *t)
hz = t->speed_hz;
}
if (hz > spi->max_speed_hz || hz > hw->freq_max || hz < hw->freq_min) {
dev_err(&spi->dev, "setupxfer: clock rate=%d out of range\n",
hz);
if (!hz)
return -EINVAL;
}
au1550_spi_bits_handlers_set(hw, spi->bits_per_word);
@ -287,23 +282,6 @@ static int au1550_spi_setupxfer(struct spi_device *spi, struct spi_transfer *t)
return 0;
}
static int au1550_spi_setup(struct spi_device *spi)
{
struct au1550_spi *hw = spi_master_get_devdata(spi->master);
if (spi->max_speed_hz == 0)
spi->max_speed_hz = hw->freq_max;
if (spi->max_speed_hz > hw->freq_max
|| spi->max_speed_hz < hw->freq_min)
return -EINVAL;
/*
* NOTE: cannot change speed and other hw settings immediately,
* otherwise sharing of spi bus is not possible,
* so do not call setupxfer(spi, NULL) here
*/
return 0;
}
/*
* for dma spi transfers, we have to setup rx channel, otherwise there is
* no reliable way how to recognize that spi transfer is done
@ -838,7 +816,6 @@ static int au1550_spi_probe(struct platform_device *pdev)
hw->bitbang.master = hw->master;
hw->bitbang.setup_transfer = au1550_spi_setupxfer;
hw->bitbang.chipselect = au1550_spi_chipsel;
hw->bitbang.master->setup = au1550_spi_setup;
hw->bitbang.txrx_bufs = au1550_spi_txrx_bufs;
if (hw->usedma) {
@ -909,8 +886,9 @@ static int au1550_spi_probe(struct platform_device *pdev)
{
int min_div = (2 << 0) * (2 * (4 + 1));
int max_div = (2 << 3) * (2 * (63 + 1));
hw->freq_max = hw->pdata->mainclk_hz / min_div;
hw->freq_min = hw->pdata->mainclk_hz / (max_div + 1) + 1;
master->max_speed_hz = hw->pdata->mainclk_hz / min_div;
master->min_speed_hz =
hw->pdata->mainclk_hz / (max_div + 1) + 1;
}
au1550_spi_setup_psc_as_spi(hw);

5
drivers/spi/spi-bcm63xx-hsspi.c
View File

@ -453,9 +453,8 @@ static int bcm63xx_hsspi_resume(struct device *dev)
}
#endif
static const struct dev_pm_ops bcm63xx_hsspi_pm_ops = {
SET_SYSTEM_SLEEP_PM_OPS(bcm63xx_hsspi_suspend, bcm63xx_hsspi_resume)
};
static SIMPLE_DEV_PM_OPS(bcm63xx_hsspi_pm_ops, bcm63xx_hsspi_suspend,
bcm63xx_hsspi_resume);
static struct platform_driver bcm63xx_hsspi_driver = {
.driver = {

2
drivers/spi/spi-bcm63xx.c
View File

@ -35,8 +35,6 @@
#include <bcm63xx_dev_spi.h>
#define PFX KBUILD_MODNAME
#define BCM63XX_SPI_MAX_PREPEND 15
struct bcm63xx_spi {

3
drivers/spi/spi-bfin-v3.c
View File

@ -822,7 +822,8 @@ static int bfin_spi_probe(struct platform_device *pdev)
master->cleanup = bfin_spi_cleanup;
master->setup = bfin_spi_setup;
master->transfer_one_message = bfin_spi_transfer_one_message;
master->bits_per_word_mask = BIT(32 - 1) | BIT(16 - 1) | BIT(8 - 1);
master->bits_per_word_mask = SPI_BPW_MASK(32) | SPI_BPW_MASK(16) |
SPI_BPW_MASK(8);
drv_data = spi_master_get_devdata(master);
drv_data->master = master;

8
drivers/spi/spi-bfin5xx.c
View File

@ -350,7 +350,6 @@ static void *bfin_spi_next_transfer(struct bfin_spi_master_data *drv_data)
static void bfin_spi_giveback(struct bfin_spi_master_data *drv_data)
{
struct bfin_spi_slave_data *chip = drv_data->cur_chip;
struct spi_transfer *last_transfer;
unsigned long flags;
struct spi_message *msg;
@ -362,9 +361,6 @@ static void bfin_spi_giveback(struct bfin_spi_master_data *drv_data)
queue_work(drv_data->workqueue, &drv_data->pump_messages);
spin_unlock_irqrestore(&drv_data->lock, flags);
last_transfer = list_entry(msg->transfers.prev,
struct spi_transfer, transfer_list);
msg->state = NULL;
if (!drv_data->cs_change)
@ -1030,10 +1026,6 @@ static int bfin_spi_setup(struct spi_device *spi)
}
/* translate common spi framework into our register */
if (spi->mode & ~(SPI_CPOL | SPI_CPHA | SPI_LSB_FIRST)) {
dev_err(&spi->dev, "unsupported spi modes detected\n");
goto error;
}
if (spi->mode & SPI_CPOL)
chip->ctl_reg |= BIT_CTL_CPOL;
if (spi->mode & SPI_CPHA)

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

@ -467,11 +467,9 @@ EXPORT_SYMBOL_GPL(spi_bitbang_start);
/**
* spi_bitbang_stop - stops the task providing spi communication
*/
int spi_bitbang_stop(struct spi_bitbang *bitbang)
void spi_bitbang_stop(struct spi_bitbang *bitbang)
{
spi_unregister_master(bitbang->master);
return 0;
}
EXPORT_SYMBOL_GPL(spi_bitbang_stop);

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

@ -309,7 +309,6 @@ done:
static void butterfly_detach(struct parport *p)
{
struct butterfly *pp;
int status;
/* FIXME this global is ugly ... but, how to quickly get from
* the parport to the "struct butterfly" associated with it?
@ -321,7 +320,7 @@ static void butterfly_detach(struct parport *p)
butterfly = NULL;
/* stop() unregisters child devices too */
status = spi_bitbang_stop(&pp->bitbang);
spi_bitbang_stop(&pp->bitbang);
/* turn off VCC */
parport_write_data(pp->port, 0);

5
drivers/spi/spi-gpio.c
View File

@ -503,13 +503,12 @@ static int spi_gpio_remove(struct platform_device *pdev)
{
struct spi_gpio *spi_gpio;
struct spi_gpio_platform_data *pdata;
int status;
spi_gpio = platform_get_drvdata(pdev);
pdata = dev_get_platdata(&pdev->dev);
/* stop() unregisters child devices too */
status = spi_bitbang_stop(&spi_gpio->bitbang);
spi_bitbang_stop(&spi_gpio->bitbang);
if (SPI_MISO_GPIO != SPI_GPIO_NO_MISO)
gpio_free(SPI_MISO_GPIO);
@ -518,7 +517,7 @@ static int spi_gpio_remove(struct platform_device *pdev)
gpio_free(SPI_SCK_GPIO);
spi_master_put(spi_gpio->bitbang.master);
return status;
return 0;
}
MODULE_ALIAS("platform:" DRIVER_NAME);

5
drivers/spi/spi-omap-uwire.c
View File

@ -539,14 +539,13 @@ static int uwire_probe(struct platform_device *pdev)
static int uwire_remove(struct platform_device *pdev)
{
struct uwire_spi *uwire = platform_get_drvdata(pdev);
int status;
// FIXME remove all child devices, somewhere ...
status = spi_bitbang_stop(&uwire->bitbang);
spi_bitbang_stop(&uwire->bitbang);
uwire_off(uwire);
iounmap(uwire_base);
return status;
return 0;
}
/* work with hotplug and coldplug */

3
drivers/spi/spi-ti-qspi.c
View File

@ -435,7 +435,8 @@ static int ti_qspi_probe(struct platform_device *pdev)
master->auto_runtime_pm = true;
master->transfer_one_message = ti_qspi_start_transfer_one;
master->dev.of_node = pdev->dev.of_node;
master->bits_per_word_mask = BIT(32 - 1) | BIT(16 - 1) | BIT(8 - 1);
master->bits_per_word_mask = SPI_BPW_MASK(32) | SPI_BPW_MASK(16) |
SPI_BPW_MASK(8);
if (!of_property_read_u32(np, "num-cs", &num_cs))
master->num_chipselect = num_cs;

2
include/linux/spi/spi_bitbang.h
View File

@ -42,6 +42,6 @@ extern int spi_bitbang_setup_transfer(struct spi_device *spi,
/* start or stop queue processing */
extern int spi_bitbang_start(struct spi_bitbang *spi);
extern int spi_bitbang_stop(struct spi_bitbang *spi);
extern void spi_bitbang_stop(struct spi_bitbang *spi);
#endif /* __SPI_BITBANG_H */