spi/mcspi: allow configuration of pin directions
Allow D0 to be an input and D1 to be an output, configurable via
platform data and a new DT property.
Based on a patch from Matus Ujhelyi <matus.ujhelyi@streamunlimited.com>
Signed-off-by: Daniel Mack <zonque@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
diff --git a/include/linux/platform_data/spi-omap2-mcspi.h b/include/linux/platform_data/spi-omap2-mcspi.h
index a357eb2..ce70f7b 100644
--- a/include/linux/platform_data/spi-omap2-mcspi.h
+++ b/include/linux/platform_data/spi-omap2-mcspi.h
@@ -7,9 +7,13 @@
#define OMAP4_MCSPI_REG_OFFSET 0x100
+#define MCSPI_PINDIR_D0_OUT_D1_IN 0
+#define MCSPI_PINDIR_D0_IN_D1_OUT 1
+
struct omap2_mcspi_platform_config {
unsigned short num_cs;
unsigned int regs_offset;
+ unsigned int pin_dir:1;
};
struct omap2_mcspi_dev_attr {