From: Brian Niebuhr Date: Thu, 12 Aug 2010 07:19:05 +0000 (+0530) Subject: spi: davinci: set chip-select mode in SPIDEF only once X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=843a713bc53d04f8fac46ddd8693a2cc0422ca5e;p=deliverable%2Flinux.git 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 Tested-By: Michael Williamson Signed-off-by: Sekhar Nori --- diff --git a/drivers/spi/davinci_spi.c b/drivers/spi/davinci_spi.c index 76decda0c8da..d6b6a4958088 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);