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author | Gabor Juhos <juhosg@openwrt.org> | 2012-01-22 22:38:19 +0000 |
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committer | Gabor Juhos <juhosg@openwrt.org> | 2012-01-22 22:38:19 +0000 |
commit | af015f956c35717909247a5732f6862d3de1476f (patch) | |
tree | c72d67ef23e35b8dd3e8177c4811773ed6eed759 /target/linux/ar71xx/patches-3.2/204-spi-ath79-use-gpio_request_one.patch | |
parent | 386cbfe45bc521baa889a8c261b2c77e69fc956f (diff) | |
download | mtk-20170518-af015f956c35717909247a5732f6862d3de1476f.zip mtk-20170518-af015f956c35717909247a5732f6862d3de1476f.tar.gz mtk-20170518-af015f956c35717909247a5732f6862d3de1476f.tar.bz2 |
ar71xx: add initial support for 3.2
Tested on the following boards:
ALFA AP96
TL-MR3220 v1
TL-WR1043ND v1
TL-WR2543ND v1
TL-WR703N v1
TL-WR741ND v1
TL-WR741ND v4
WNDR3700 v1
WZR-HP-G300NH
SVN-Revision: 29868
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.patch | 55 |
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 0000000..0484d3d --- /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) |