69c202afa8
Add the SPI controller driver for Freescale i.MX(S/L/1). Main features summary: > Per chip setup via board specific code and/or protocol driver. > Per transfer setup. > PIO transfers. > DMA transfers. > Managing of NULL tx / rx buffer for rd only / wr only transfers. This patch replace patch-2.6.20-rc4-spi_imx with the following changes: > Few cosmetic changes. > Function map_dma_buffers now return 0 for success and -1 for failure. > Solved a bug inside spi_imx_probe function (wrong error path). > Solved a bug inside setup function (bad undo setup for max_speed_hz). > For read-only transfers, always write zero bytes. This is almost the same as the 'BIS' version sent by Andrea, except for updating the 'DUMMY' byte so that read-only transfers shift out zeroes. That part of the API changed recently, since some half duplex peripheral chips require that semantic. Signed-off-by: Andrea Paterniani <a.paterniani@swapp-eng.it> Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
32 lines
889 B
Makefile
32 lines
889 B
Makefile
#
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# Makefile for kernel SPI drivers.
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#
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ifeq ($(CONFIG_SPI_DEBUG),y)
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EXTRA_CFLAGS += -DDEBUG
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endif
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# small core, mostly translating board-specific
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# config declarations into driver model code
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obj-$(CONFIG_SPI_MASTER) += spi.o
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# SPI master controller drivers (bus)
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obj-$(CONFIG_SPI_BITBANG) += spi_bitbang.o
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obj-$(CONFIG_SPI_BUTTERFLY) += spi_butterfly.o
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obj-$(CONFIG_SPI_IMX) += spi_imx.o
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obj-$(CONFIG_SPI_PXA2XX) += pxa2xx_spi.o
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obj-$(CONFIG_SPI_OMAP_UWIRE) += omap_uwire.o
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obj-$(CONFIG_SPI_MPC83xx) += spi_mpc83xx.o
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obj-$(CONFIG_SPI_S3C24XX_GPIO) += spi_s3c24xx_gpio.o
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obj-$(CONFIG_SPI_S3C24XX) += spi_s3c24xx.o
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# ... add above this line ...
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# SPI protocol drivers (device/link on bus)
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# ... add above this line ...
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# SPI slave controller drivers (upstream link)
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# ... add above this line ...
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# SPI slave drivers (protocol for that link)
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# ... add above this line ...
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