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Subject[PATCH 3/4] spi: omap2-mcspi: Fix GPIO chip select support
Date
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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