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spi: atmel: request cs pin via gpiolib 

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This commit is contained in:
Jean-Christophe PLAGNIOL-VILLARD 2012-12-28 17:46:31 +01:00 committed by Sascha Hauer
parent b4f7410ad1
commit 668dffaa0d
1 changed files with 8 additions and 0 deletions
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8
drivers/spi/atmel_spi.c
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@ -371,6 +371,7 @@ err:
static int atmel_spi_probe(struct device_d *dev)
{
int ret = 0;
int i;
struct spi_master *master;
struct atmel_spi *as;
struct at91_spi_platform_data *pdata = dev->platform_data;
@ -399,6 +400,12 @@ static int atmel_spi_probe(struct device_d *dev)
as->cs_pins = pdata->chipselect;
as->regs = dev_request_mem_region(dev, 0);
for (i = 0; i <= master->num_chipselect; i++) {
ret = gpio_request(as->cs_pins[i], dev_name(dev));
if (ret)
goto out_gpio;
}
/* Initialize the hardware */
clk_enable(as->clk);
spi_writel(as, CR, SPI_BIT(SWRST));
@ -418,6 +425,7 @@ static int atmel_spi_probe(struct device_d *dev)
out_reset_hw:
spi_writel(as, CR, SPI_BIT(SWRST));
spi_writel(as, CR, SPI_BIT(SWRST)); /* AT91SAM9263 Rev B workaround */
out_gpio:
clk_disable(as->clk);
clk_put(as->clk);
out_free: