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Diffstat (limited to 'target/linux/ar71xx/patches-3.2/204-spi-ath79-use-gpio_request_one.patch')
-rw-r--r--target/linux/ar71xx/patches-3.2/204-spi-ath79-use-gpio_request_one.patch55
1 files changed, 55 insertions, 0 deletions
diff --git a/target/linux/ar71xx/patches-3.2/204-spi-ath79-use-gpio_request_one.patch b/target/linux/ar71xx/patches-3.2/204-spi-ath79-use-gpio_request_one.patch
new file mode 100644
index 0000000000..0484d3d7f3
--- /dev/null
+++ b/target/linux/ar71xx/patches-3.2/204-spi-ath79-use-gpio_request_one.patch
@@ -0,0 +1,55 @@
+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;
++ flags = GPIOF_DIR_OUT;
++ if (spi->mode & SPI_CS_HIGH)
++ flags |= GPIOF_INIT_HIGH;
++ else
++ flags |= GPIOF_INIT_LOW;
+
+- status = gpio_direction_output(cdata->gpio,
+- spi->mode & SPI_CS_HIGH);
+- if (status) {
+- gpio_free(cdata->gpio);
+- return status;
+- }
++ 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)