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47 lines
1.3 KiB
Diff
47 lines
1.3 KiB
Diff
From df07ed6a52d9f6027ff1753c00b3128fa18dde31 Mon Sep 17 00:00:00 2001
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From: Lars-Peter Clausen <lars@metafoo.de>
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Date: Mon, 11 Jan 2010 04:29:48 +0100
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Subject: [PATCH] /opt/Projects/openwrt/target/linux/xburst/patches-2.6.31/400-spi-gpio-3wire.patch
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---
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drivers/spi/spi_gpio.c | 14 +++++++++-----
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1 files changed, 9 insertions(+), 5 deletions(-)
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--- a/drivers/spi/spi_gpio.c
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+++ b/drivers/spi/spi_gpio.c
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@@ -254,9 +254,11 @@ spi_gpio_request(struct spi_gpio_platfor
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if (value)
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goto done;
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- value = spi_gpio_alloc(SPI_MISO_GPIO, label, true);
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- if (value)
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- goto free_mosi;
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+ if (SPI_MISO_GPIO != SPI_MOSI_GPIO) {
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+ value = spi_gpio_alloc(SPI_MISO_GPIO, label, true);
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+ if (value)
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+ goto free_mosi;
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+ }
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value = spi_gpio_alloc(SPI_SCK_GPIO, label, false);
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if (value)
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@@ -319,7 +321,8 @@ static int __devinit spi_gpio_probe(stru
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if (status < 0) {
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spi_master_put(spi_gpio->bitbang.master);
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gpio_free:
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- gpio_free(SPI_MISO_GPIO);
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+ if (SPI_MISO_GPIO != SPI_MOSI_GPIO)
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+ gpio_free(SPI_MISO_GPIO);
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gpio_free(SPI_MOSI_GPIO);
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gpio_free(SPI_SCK_GPIO);
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spi_master_put(master);
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@@ -343,7 +346,8 @@ static int __devexit spi_gpio_remove(str
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platform_set_drvdata(pdev, NULL);
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- gpio_free(SPI_MISO_GPIO);
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+ if (SPI_MISO_GPIO != SPI_MOSI_GPIO)
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+ gpio_free(SPI_MISO_GPIO);
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gpio_free(SPI_MOSI_GPIO);
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gpio_free(SPI_SCK_GPIO);
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