ar71xx: use backported SPI patches

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@35873 3c298f89-4303-0410-b956-a3cf2f4a3e73

1 files changed, 33 insertions, 0 deletions

diff --git a/target/linux/ar71xx/patches-3.8/003-spi-ath79-remove-superfluous-chip-select-code.patch b/target/linux/ar71xx/patches-3.8/003-spi-ath79-remove-superfluous-chip-select-code.patch
new file mode 100644
index 0000000000..58272bdbf5
--- /dev/null
+++ b/target/linux/ar71xx/patches-3.8/003-spi-ath79-remove-superfluous-chip-select-code.patch
@@ -0,0 +1,33 @@
+From 622d87da7f99b29dde053881bf42c46de7572ce5 Mon Sep 17 00:00:00 2001
+From: Gabor Juhos <juhosg@openwrt.org>
+Date: Thu, 27 Dec 2012 10:42:26 +0100
+Subject: [PATCH] spi/ath79: remove superfluous chip select code
+
+commit f1e8fc9898fd8ca78b7438d3c2e60028d3ae2a34 upstream.
+
+The spi_bitbang driver calls the chipselect function
+of the driver from spi_bitbang_setup in order to
+deselect the given SPI chip, so we don't have to
+initialize the CS line here.
+
+Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
+Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
+---
+ drivers/spi/spi-ath79.c |    6 ------
+ 1 file changed, 6 deletions(-)
+
+--- a/drivers/spi/spi-ath79.c
++++ b/drivers/spi/spi-ath79.c
+@@ -128,12 +128,6 @@ static int ath79_spi_setup_cs(struct spi
+ 			gpio_free(cdata->gpio);
+ 			return status;
+ 		}
+-	} else {
+-		if (spi->mode & SPI_CS_HIGH)
+-			sp->ioc_base |= AR71XX_SPI_IOC_CS0;
+-		else
+-			sp->ioc_base &= ~AR71XX_SPI_IOC_CS0;
+-		ath79_spi_wr(sp, AR71XX_SPI_REG_IOC, sp->ioc_base);
+ 	}
+ 
+ 	return 0;