From 6ee8a2f7d5e78700b6e64799b5e9976b21cfad79 Mon Sep 17 00:00:00 2001 From: Qipan Li Date: Mon, 14 Apr 2014 14:29:59 +0800 Subject: spi: sirf: make GPIO chipselect function work well orignal GPIO chipslect is not standard because it don't take care to the chipselect signal: BITBANG_CS_ACTIVE and BITBANG_CS_INACTIVE. Signed-off-by: Qipan Li Signed-off-by: Barry Song Signed-off-by: Mark Brown --- drivers/spi/spi-sirf.c | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-) (limited to 'drivers/spi') diff --git a/drivers/spi/spi-sirf.c b/drivers/spi/spi-sirf.c index 9b30743..67d8909 100644 --- a/drivers/spi/spi-sirf.c +++ b/drivers/spi/spi-sirf.c @@ -470,7 +470,16 @@ static void spi_sirfsoc_chipselect(struct spi_device *spi, int value) writel(regval, sspi->base + SIRFSOC_SPI_CTRL); } else { int gpio = sspi->chipselect[spi->chip_select]; - gpio_direction_output(gpio, spi->mode & SPI_CS_HIGH ? 0 : 1); + switch (value) { + case BITBANG_CS_ACTIVE: + gpio_direction_output(gpio, + spi->mode & SPI_CS_HIGH ? 1 : 0); + break; + case BITBANG_CS_INACTIVE: + gpio_direction_output(gpio, + spi->mode & SPI_CS_HIGH ? 0 : 1); + break; + } } } -- cgit v1.1