1 files changed, 0 insertions, 112 deletions
diff --git a/target/linux/ar71xx/patches-3.8/005-spi-ath79-avoid-multiple-initialization-of-the-SPI-c.patch b/target/linux/ar71xx/patches-3.8/005-spi-ath79-avoid-multiple-initialization-of-the-SPI-c.patch
deleted file mode 100644
index 8ad1dc3a93..0000000000
--- a/target/linux/ar71xx/patches-3.8/005-spi-ath79-avoid-multiple-initialization-of-the-SPI-c.patch
+++ /dev/null
@@ -1,112 +0,0 @@
-From d731c08cf1d264fd6113b9a97790c5a3a86ea520 Mon Sep 17 00:00:00 2001
-From: Gabor Juhos <juhosg@openwrt.org>
-Date: Thu, 27 Dec 2012 10:42:28 +0100
-Subject: [PATCH] spi/ath79: avoid multiple initialization of the SPI
- controller
-
-commit c4a31f43005512b366e8bfc346e7f14c1a7a1ba7 upstream.
-
-Currently we are initializing the SPI controller in
-the chip select line function, and that function is
-called once for each SPI device on the bus. If a
-board has multiple SPI devices, the controller will
-be initialized multiple times.
-
-Introduce ath79_spi_{en,dis}able helper functions,
-and call those from probe/response in order to avoid
-the mutliple initialization of the controller.
-
-Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
-Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
----
- drivers/spi/spi-ath79.c |   41 ++++++++++++++++++++++++-----------------
- 1 file changed, 24 insertions(+), 17 deletions(-)
-
---- a/drivers/spi/spi-ath79.c
-+++ b/drivers/spi/spi-ath79.c
-@@ -96,16 +96,8 @@ static void ath79_spi_chipselect(struct
- 
- }
- 
--static int ath79_spi_setup_cs(struct spi_device *spi)
-+static void ath79_spi_enable(struct ath79_spi *sp)
- {
--	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)
--		return -EINVAL;
--
- 	/* enable GPIO mode */
- 	ath79_spi_wr(sp, AR71XX_SPI_REG_FS, AR71XX_SPI_FS_GPIO);
- 
-@@ -115,6 +107,24 @@ static int ath79_spi_setup_cs(struct spi
- 
- 	/* TODO: setup speed? */
- 	ath79_spi_wr(sp, AR71XX_SPI_REG_CTRL, 0x43);
-+}
-+
-+static void ath79_spi_disable(struct ath79_spi *sp)
-+{
-+	/* restore CTRL register */
-+	ath79_spi_wr(sp, AR71XX_SPI_REG_CTRL, sp->reg_ctrl);
-+	/* disable GPIO mode */
-+	ath79_spi_wr(sp, AR71XX_SPI_REG_FS, 0);
-+}
-+
-+static int ath79_spi_setup_cs(struct spi_device *spi)
-+{
-+	struct ath79_spi_controller_data *cdata;
-+	int status;
-+
-+	cdata = spi->controller_data;
-+	if (spi->chip_select && !cdata)
-+		return -EINVAL;
- 
- 	status = 0;
- 	if (spi->chip_select) {
-@@ -135,17 +145,10 @@ static int ath79_spi_setup_cs(struct spi
- 
- static void ath79_spi_cleanup_cs(struct spi_device *spi)
- {
--	struct ath79_spi *sp = ath79_spidev_to_sp(spi);
--
- 	if (spi->chip_select) {
- 		struct ath79_spi_controller_data *cdata = spi->controller_data;
- 		gpio_free(cdata->gpio);
- 	}
--
--	/* restore CTRL register */
--	ath79_spi_wr(sp, AR71XX_SPI_REG_CTRL, sp->reg_ctrl);
--	/* disable GPIO mode */
--	ath79_spi_wr(sp, AR71XX_SPI_REG_FS, 0);
- }
- 
- static int ath79_spi_setup(struct spi_device *spi)
-@@ -268,12 +271,15 @@ static int ath79_spi_probe(struct platfo
- 	dev_dbg(&pdev->dev, "register read/write delay is %u nsecs\n",
- 		sp->rrw_delay);
- 
-+	ath79_spi_enable(sp);
- 	ret = spi_bitbang_start(&sp->bitbang);
- 	if (ret)
--		goto err_clk_disable;
-+		goto err_disable;
- 
- 	return 0;
- 
-+err_disable:
-+	ath79_spi_disable(sp);
- err_clk_disable:
- 	clk_disable(sp->clk);
- err_clk_put:
-@@ -292,6 +298,7 @@ static int ath79_spi_remove(struct platf
- 	struct ath79_spi *sp = platform_get_drvdata(pdev);
- 
- 	spi_bitbang_stop(&sp->bitbang);
-+	ath79_spi_disable(sp);
- 	clk_disable(sp->clk);
- 	clk_put(sp->clk);
- 	iounmap(sp->base);