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yaml
---
r: 74598
b: refs/heads/master
c: 12e17c4
h: refs/heads/master
v: v3
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Sonic Zhang authored and Linus Torvalds committed Dec 5, 2007
1 parent 9b8ad81 commit bd5b2dc
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Showing 2 changed files with 29 additions and 26 deletions.
2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: 7c4ef09449ca382da2e39b93ca9d03e3dbd5c17c
refs/heads/master: 12e17c4267a5b2a5ba77bd53a62388be641534b8
53 changes: 28 additions & 25 deletions trunk/drivers/spi/spi_bfin5xx.c
Original file line number Diff line number Diff line change
Expand Up @@ -136,7 +136,6 @@ struct chip_data {
u16 flag;

u8 chip_select_num;
u8 chip_select_requested;
u8 n_bytes;
u8 width; /* 0 or 1 */
u8 enable_dma;
Expand Down Expand Up @@ -216,19 +215,7 @@ static int restore_state(struct driver_data *drv_data)
{
struct chip_data *chip = drv_data->cur_chip;
int ret = 0;
u16 ssel[3][MAX_SPI_SSEL] = {
{P_SPI0_SSEL1, P_SPI0_SSEL2, P_SPI0_SSEL3,
P_SPI0_SSEL4, P_SPI0_SSEL5,
P_SPI0_SSEL6, P_SPI0_SSEL7},

{P_SPI1_SSEL1, P_SPI1_SSEL2, P_SPI1_SSEL3,
P_SPI1_SSEL4, P_SPI1_SSEL5,
P_SPI1_SSEL6, P_SPI1_SSEL7},

{P_SPI2_SSEL1, P_SPI2_SSEL2, P_SPI2_SSEL3,
P_SPI2_SSEL4, P_SPI2_SSEL5,
P_SPI2_SSEL6, P_SPI2_SSEL7},
};

/* Clear status and disable clock */
write_STAT(BIT_STAT_CLR);
bfin_spi_disable(drv_data);
Expand All @@ -239,17 +226,6 @@ static int restore_state(struct driver_data *drv_data)
write_BAUD(chip->baud);
cs_active(chip);

if (!chip->chip_select_requested) {
int i = chip->chip_select_num;

dev_dbg(&drv_data->pdev->dev, "chip select number is %d\n", i);
if ((i > 0) && (i <= MAX_SPI_SSEL))
ret = peripheral_request(
ssel[drv_data->master->bus_num][i-1], DRV_NAME);

chip->chip_select_requested = 1;
}

if (ret)
dev_dbg(&drv_data->pdev->dev,
": request chip select number %d failed\n",
Expand Down Expand Up @@ -983,6 +959,22 @@ static int transfer(struct spi_device *spi, struct spi_message *msg)
return 0;
}

#define MAX_SPI_SSEL 7

static u16 ssel[3][MAX_SPI_SSEL] = {
{P_SPI0_SSEL1, P_SPI0_SSEL2, P_SPI0_SSEL3,
P_SPI0_SSEL4, P_SPI0_SSEL5,
P_SPI0_SSEL6, P_SPI0_SSEL7},

{P_SPI1_SSEL1, P_SPI1_SSEL2, P_SPI1_SSEL3,
P_SPI1_SSEL4, P_SPI1_SSEL5,
P_SPI1_SSEL6, P_SPI1_SSEL7},

{P_SPI2_SSEL1, P_SPI2_SSEL2, P_SPI2_SSEL3,
P_SPI2_SSEL4, P_SPI2_SSEL5,
P_SPI2_SSEL6, P_SPI2_SSEL7},
};

/* first setup for new devices */
static int setup(struct spi_device *spi)
{
Expand Down Expand Up @@ -1113,6 +1105,12 @@ static int setup(struct spi_device *spi)

spi_set_ctldata(spi, chip);

dev_dbg(&spi->dev, "chip select number is %d\n", chip->chip_select_num);
if ((chip->chip_select_num > 0)
&& (chip->chip_select_num <= spi->master->num_chipselect))
peripheral_request(ssel[spi->master->bus_num]
[chip->chip_select_num-1], DRV_NAME);

return 0;
}

Expand All @@ -1124,6 +1122,11 @@ static void cleanup(struct spi_device *spi)
{
struct chip_data *chip = spi_get_ctldata(spi);

if ((chip->chip_select_num > 0)
&& (chip->chip_select_num <= spi->master->num_chipselect))
peripheral_free(ssel[spi->master->bus_num]
[chip->chip_select_num-1]);

kfree(chip);
}

Expand Down

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