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From c5bfb0c760a5d8de7ffc3a6acfb8c782be6af1a5 Mon Sep 17 00:00:00 2001
From: Gabor Juhos <juhosg@openwrt.org>
Date: Mon, 9 Jan 2012 15:04:21 +0100
Subject: [PATCH 4/7] spi/ath79: use gpio_request_one
Use gpio_request_one() instead of multiple gpiolib calls.
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
---
drivers/spi/spi-ath79.c | 26 +++++++++++++-------------
1 files changed, 13 insertions(+), 13 deletions(-)
--- a/drivers/spi/spi-ath79.c
+++ b/drivers/spi/spi-ath79.c
@@ -93,6 +93,7 @@ static int ath79_spi_setup_cs(struct spi
{
struct ath79_spi *sp = ath79_spidev_to_sp(spi);
struct ath79_spi_controller_data *cdata;
+ int status;
cdata = spi->controller_data;
if (spi->chip_select && !cdata)
@@ -108,22 +109,21 @@ static int ath79_spi_setup_cs(struct spi
/* TODO: setup speed? */
ath79_spi_wr(sp, AR71XX_SPI_REG_CTRL, 0x43);
+ status = 0;
if (spi->chip_select) {
- int status = 0;
+ unsigned long flags;
- status = gpio_request(cdata->gpio, dev_name(&spi->dev));
- if (status)
- return status;
-
- status = gpio_direction_output(cdata->gpio,
- spi->mode & SPI_CS_HIGH);
- if (status) {
- gpio_free(cdata->gpio);
- return status;
- }
+ flags = GPIOF_DIR_OUT;
+ if (spi->mode & SPI_CS_HIGH)
+ flags |= GPIOF_INIT_HIGH;
+ else
+ flags |= GPIOF_INIT_LOW;
+
+ status = gpio_request_one(cdata->gpio, flags,
+ dev_name(&spi->dev));
}
- return 0;
+ return status;
}
static void ath79_spi_cleanup_cs(struct spi_device *spi)
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