openwrt/target/linux/ar71xx/patches-3.2/204-spi-ath79-use-gpio_request_one.patch

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)