Messages in this thread Patch in this message | | | From | Michael Welling <> | Subject | [PATCH 3/4] spi: omap2-mcspi: Fix GPIO chip select support | Date | Sat, 23 May 2015 21:13:44 -0500 |
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The OMAP2_MCSPI_CHCONF_FORCE must be toggled even when using GPIO chip selects. This patch conditionally calls the omap2_mcspi_set_cs function to do so when using GPIO chip selects.
Signed-off-by: Michael Welling <mwelling@ieee.org> --- drivers/spi/spi-omap2-mcspi.c | 6 ++++++ 1 file changed, 6 insertions(+)
diff --git a/drivers/spi/spi-omap2-mcspi.c b/drivers/spi/spi-omap2-mcspi.c index 502db29..c4e21ad 100644 --- a/drivers/spi/spi-omap2-mcspi.c +++ b/drivers/spi/spi-omap2-mcspi.c @@ -1108,6 +1108,9 @@ static int omap2_mcspi_work_one(struct omap2_mcspi *mcspi, omap2_mcspi_set_enable(spi, 0); + if (gpio_is_valid(spi->cs_gpio)) + omap2_mcspi_set_cs(spi, spi->mode & SPI_CS_HIGH); + if (par_override || (t->speed_hz != spi->max_speed_hz) || (t->bits_per_word != spi->bits_per_word)) { @@ -1192,6 +1195,9 @@ out: omap2_mcspi_set_enable(spi, 0); + if (gpio_is_valid(spi->cs_gpio)) + omap2_mcspi_set_cs(spi, !(spi->mode & SPI_CS_HIGH)); + if (mcspi->fifo_depth > 0 && t) omap2_mcspi_set_fifo(spi, t, 0); -- 1.7.9.5
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