56 lines
1.5 KiB
Diff
56 lines
1.5 KiB
Diff
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)
|