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authorjuhosg <juhosg@3c298f89-4303-0410-b956-a3cf2f4a3e73>2013-03-04 09:40:44 +0000
committerjuhosg <juhosg@3c298f89-4303-0410-b956-a3cf2f4a3e73>2013-03-04 09:40:44 +0000
commitaf050ad637452346501799ea906111a41e9e4e12 (patch)
tree4fb95ac5deffb6f79aca8b56815c804acfb5259b /target/linux/ar71xx/patches-3.8/003-spi-ath79-remove-superfluous-chip-select-code.patch
parent5c88b794d6bb3926e80b4ad66e1b51d6bb386a98 (diff)
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
Diffstat (limited to 'target/linux/ar71xx/patches-3.8/003-spi-ath79-remove-superfluous-chip-select-code.patch')
-rw-r--r--target/linux/ar71xx/patches-3.8/003-spi-ath79-remove-superfluous-chip-select-code.patch33
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;