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| author | Brian Niebuhr <bniebuhr@efjohnson.com> | 2010-08-12 12:49:05 +0530 |
|---|---|---|
| committer | Sekhar Nori <nsekhar@ti.com> | 2010-11-18 18:38:24 +0530 |
| commit | 843a713bc53d04f8fac46ddd8693a2cc0422ca5e (patch) | |
| tree | c433420bbded315631d91376f04a145ab03a2a6d | |
| parent | 50356dd7c1f6338588af6a745649a718f16fe453 (diff) | |
| download | op-kernel-dev-843a713bc53d04f8fac46ddd8693a2cc0422ca5e.zip op-kernel-dev-843a713bc53d04f8fac46ddd8693a2cc0422ca5e.tar.gz | |
spi: davinci: set chip-select mode in SPIDEF only once
Quit writing the same constant value determining the chip-select
mode when no transmissions are in progress in davinci_spi_chipelect().
Instead just setup the SPIDEF register once during probe.
Signed-off-by: Brian Niebuhr <bniebuhr@efjohnson.com>
Tested-By: Michael Williamson <michael.williamson@criticallink.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
| -rw-r--r-- | drivers/spi/davinci_spi.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/spi/davinci_spi.c b/drivers/spi/davinci_spi.c index 76decda..d6b6a49 100644 --- a/drivers/spi/davinci_spi.c +++ b/drivers/spi/davinci_spi.c @@ -245,8 +245,6 @@ static void davinci_spi_chipselect(struct spi_device *spi, int value) * line for the controller */ if (value == BITBANG_CS_INACTIVE) { - set_io_bits(davinci_spi->base + SPIDEF, CS_DEFAULT); - data1_reg_val |= CS_DEFAULT << SPIDAT1_CSNR_SHIFT; iowrite32(data1_reg_val, davinci_spi->base + SPIDAT1); @@ -1132,6 +1130,8 @@ static int davinci_spi_probe(struct platform_device *pdev) clear_io_bits(davinci_spi->base + SPIGCR1, SPIGCR1_CLKMOD_MASK); + iowrite32(CS_DEFAULT, davinci_spi->base + SPIDEF); + /* master mode default */ set_io_bits(davinci_spi->base + SPIGCR1, SPIGCR1_MASTER_MASK); |
