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| author | Brian Niebuhr <bniebuhr@efjohnson.com> | 2010-09-02 16:52:06 +0530 |
|---|---|---|
| committer | Sekhar Nori <nsekhar@ti.com> | 2010-11-18 18:38:30 +0530 |
| commit | e0d205e9914476e96596c5339fa440fb314ef03b (patch) | |
| tree | 73e66099f725499b8adb145b8835d90add228c8e /arch | |
| parent | 839c996ca8dd56f9ea80d7fc0c8b18b01394c82a (diff) | |
| download | linux-e0d205e9914476e96596c5339fa440fb314ef03b.tar.gz linux-e0d205e9914476e96596c5339fa440fb314ef03b.tar.bz2 linux-e0d205e9914476e96596c5339fa440fb314ef03b.zip | |
spi: davinci: add support for interrupt mode
Add support for SPI interrupt mode operation.
Define a per chip-select "io type" variable which
specifies if the transfers on this chip-select should
happen in interrupt mode or polled mode.
Introduce a new function davinci_spi_process_events()
to help consolidate the code between interrupt mode
processing and polled mode processing.
Signed-off-by: Brian Niebuhr <bniebuhr@efjohnson.com>
Tested-By: Michael Williamson <michael.williamson@criticallink.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/mach-davinci/include/mach/spi.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/arm/mach-davinci/include/mach/spi.h b/arch/arm/mach-davinci/include/mach/spi.h index e68afe23885b..ab45b89a0c5f 100644 --- a/arch/arm/mach-davinci/include/mach/spi.h +++ b/arch/arm/mach-davinci/include/mach/spi.h @@ -30,6 +30,7 @@ struct davinci_spi_platform_data { u8 version; u8 num_chipselect; u8 clk_internal; + u8 intr_line; u8 use_dma; u8 *chip_sel; }; @@ -38,6 +39,9 @@ struct davinci_spi_config { u8 wdelay; u8 odd_parity; u8 parity_enable; +#define SPI_IO_TYPE_INTR 0 +#define SPI_IO_TYPE_POLL 1 + u8 io_type; u8 timer_disable; u8 c2tdelay; u8 t2cdelay; |