drivers: spi: omap3_spi: Initialize mode for all channels
At first SPI transfers, multiple chip selects can be
enabled simultaneously. This is due to chip select
polarity, which is not properly initialized for all
channels. This patch fixes the issue.
Signed-off-by: Julien Panis <jpanis@baylibre.com>
diff --git a/include/omap3_spi.h b/include/omap3_spi.h
index cae3770..5381431 100644
--- a/include/omap3_spi.h
+++ b/include/omap3_spi.h
@@ -46,6 +46,8 @@
#define OMAP4_MCSPI_REG_OFFSET 0x100
+#define OMAP4_MCSPI_CHAN_NB 4
+
/* OMAP3 McSPI registers */
struct mcspi_channel {
unsigned int chconf; /* 0x2C, 0x40, 0x54, 0x68 */
@@ -64,7 +66,7 @@
unsigned int wakeupenable; /* 0x20 */
unsigned int syst; /* 0x24 */
unsigned int modulctrl; /* 0x28 */
- struct mcspi_channel channel[4];
+ struct mcspi_channel channel[OMAP4_MCSPI_CHAN_NB];
/* channel0: 0x2C - 0x3C, bus 0 & 1 & 2 & 3 */
/* channel1: 0x40 - 0x50, bus 0 & 1 */
/* channel2: 0x54 - 0x64, bus 0 & 1 */