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git://projects.qi-hardware.com/openwrt-xburst.git
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52 lines
1.5 KiB
Diff
52 lines
1.5 KiB
Diff
From 1f49cf395395acc36efd3b408b6d22b7d9aef831 Mon Sep 17 00:00:00 2001
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From: xiangfu <xiangfu@openmobilefree.net>
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Date: Fri, 4 Sep 2009 11:43:18 -0400
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Subject: [PATCH] 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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diff --git a/drivers/spi/spi_gpio.c b/drivers/spi/spi_gpio.c
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index 26bd03e..5f89c21 100644
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--- a/drivers/spi/spi_gpio.c
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+++ b/drivers/spi/spi_gpio.c
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@@ -243,9 +243,11 @@ spi_gpio_request(struct spi_gpio_platform_data *pdata, const char *label)
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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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@@ -308,7 +310,8 @@ static int __init spi_gpio_probe(struct platform_device *pdev)
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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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@@ -332,7 +335,8 @@ static int __exit spi_gpio_remove(struct platform_device *pdev)
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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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--
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1.5.6.3
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