[Blackfin] arch: Encourage users to use the spidev character driver: Provide platform support
- Enable kernel generic spidev driver for blackfin SPI ADC
- spi_adc driver, document and test sample not synced
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
diff --git a/arch/blackfin/mach-bf561/boards/ezkit.c b/arch/blackfin/mach-bf561/boards/ezkit.c
index 63259d0..43c1b09 100644
--- a/arch/blackfin/mach-bf561/boards/ezkit.c
+++ b/arch/blackfin/mach-bf561/boards/ezkit.c
@@ -266,6 +266,13 @@
.bits_per_word = 16,
};
#endif
+
+#if defined(CONFIG_SPI_SPIDEV) || defined(CONFIG_SPI_SPIDEV_MODULE)
+static struct bfin5xx_spi_chip spidev_chip_info = {
+ .enable_dma = 0,
+ .bits_per_word = 8,
+};
+#endif
#endif
/* SPI (0) */
@@ -310,6 +317,15 @@
.controller_data = &ad1836_spi_chip_info,
},
#endif
+#if defined(CONFIG_SPI_SPIDEV) || defined(CONFIG_SPI_SPIDEV_MODULE)
+ {
+ .modalias = "spidev",
+ .max_speed_hz = 3125000, /* max spi clock (SCK) speed in HZ */
+ .bus_num = 0,
+ .chip_select = 1,
+ .controller_data = &spidev_chip_info,
+ },
+#endif
};
#if defined(CONFIG_PATA_PLATFORM) || defined(CONFIG_PATA_PLATFORM_MODULE)